FIRST TRUST

First Trust Exchange-Traded Fund IV

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First Trust Senior Loan Fund (FTSL)

Annual Report
For the Year Ended
October 31, 2022





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TABLE OF CONTENTS
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                 ANNUAL REPORT
                                OCTOBER 31, 2022

Shareholder Letter...........................................................  1
Fund Performance Overview....................................................  2
Portfolio Commentary.........................................................  5
Understanding Your Fund Expenses.............................................  7
Portfolio of Investments.....................................................  8
Statement of Assets and Liabilities.......................................... 20
Statement of Operations...................................................... 21
Statements of Changes in Net Assets.......................................... 22
Financial Highlights......................................................... 23
Notes to Financial Statements................................................ 24
Report of Independent Registered Public Accounting Firm...................... 32
Additional Information....................................................... 33
Board of Trustees and Officers............................................... 40
Privacy Policy............................................................... 42

                  CAUTION REGARDING FORWARD-LOOKING STATEMENTS

This report contains certain forward-looking statements within the meaning of
the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934,
as amended. Forward-looking statements include statements regarding the goals,
beliefs, plans or current expectations of First Trust Advisors L.P. ("First
Trust" or the "Advisor") and its representatives, taking into account the
information currently available to them. Forward-looking statements include all
statements that do not relate solely to current or historical fact. For example,
forward-looking statements include the use of words such as "anticipate,"
"estimate," "intend," "expect," "believe," "plan," "may," "should," "would" or
other words that convey uncertainty of future events or outcomes.

Forward-looking statements involve known and unknown risks, uncertainties and
other factors that may cause the actual results, performance or achievements of
the series of First Trust Exchange-Traded Fund IV (the "Trust") described in
this report (First Trust Senior Loan Fund; hereinafter referred to as the
"Fund") to be materially different from any future results, performance or
achievements expressed or implied by the forward-looking statements. When
evaluating the information included in this report, you are cautioned not to
place undue reliance on these forward-looking statements, which reflect the
judgment of the Advisor and its representatives only as of the date hereof. We
undertake no obligation to publicly revise or update these forward-looking
statements to reflect events and circumstances that arise after the date hereof.

                        PERFORMANCE AND RISK DISCLOSURE

There is no assurance that the Fund will achieve its investment objectives. The
Fund is subject to market risk, which is the possibility that the market values
of securities owned by the Fund will decline and that the value of the Fund's
shares may therefore be less than what you paid for them. Accordingly, you can
lose money investing in the Fund. See "Risk Considerations" in the Additional
Information section of this report for a discussion of certain other risks of
investing in the Fund.

Performance data quoted represents past performance, which is no guarantee of
future results, and current performance may be lower or higher than the figures
shown. For the most recent month-end performance figures, please visit
www.ftportfolios.com or speak with your financial advisor. Investment returns,
net asset value and share price will fluctuate and Fund shares, when sold, may
be worth more or less than their original cost.

The Advisor may also periodically provide additional information on Fund
performance on the Fund's webpage at www.ftportfolios.com.

                            HOW TO READ THIS REPORT

This report contains information that may help you evaluate your investment in
the Fund. It includes details about the Fund and presents data and analysis that
provide insight into the Fund's performance and investment approach.

By reading the portfolio commentary from the portfolio management team of the
Fund, you may obtain an understanding of how the market environment affected the
Fund's performance. The statistical information that follows may help you
understand the Fund's performance compared to that of relevant market
benchmarks.

It is important to keep in mind that the opinions expressed by personnel of the
Advisor are just that: informed opinions. They should not be considered to be
promises or advice. The opinions, like the statistics, cover the period through
the date on the cover of this report. The material risks of investing in the
Fund are spelled out in the prospectus, the statement of additional information,
and other Fund regulatory filings.





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SHAREHOLDER LETTER
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                    ANNUAL LETTER FROM THE CHAIRMAN AND CEO
                                OCTOBER 31, 2022


Dear Shareholders:

First Trust is pleased to provide you with the annual report for the First Trust
Senior Loan Fund (the "Fund"), which contains detailed information about the
Fund for the twelve months ended October 31, 2022.

As I'm writing this letter in mid-November, it strikes me that things appear to
be a little more chaotic in the current climate than normal. One of the things
that may have contributed to the chaotic nature of the news flow of late was the
November mid-term election. For the most part, except for a few seats in
Congress, the election is behind us. We learned there would be no "red wave"
(Republicans gaining a strong majority in Congress) but likely gridlock ahead.
Gridlock has been good for stock market investors in the past few decades,
particularly when there's been a Democratic president and the Republicans have
control of at least one house of Congress, according to Brian Wesbury, Chief
Economist at First Trust.

The Federal Reserve (the "Fed") has kept its promise to aggressively hike
interest rates to combat robust inflation. As of November 13, 2022, the Fed has
increased the Federal Funds target rate (upper bound) six times, from 0.25% to
4.00%. The Fed's actions have some investors and pundits looking for evidence
linking the interest rate hikes to a downturn in the economy. In short, the hope
is that a pullback in economic activity might deter the Fed from executing
further interest rate hikes. Fed Chairman Jerome Powell, however, recently said
that the terminal rate (the ultimate rate the Fed is targeting) will likely need
to be higher than previously estimated in order to curb stubbornly high
inflation. The Consumer Price Index ("CPI") is a commonly used measure of
inflation. The CPI stood at 7.7% on a trailing 12-month basis as of October 31,
2022, according to the U.S. Bureau of Labor Statistics. That is down from its
recent high of 9.1% in June 2022. Prior to this year, the last time the CPI was
higher than 7.0% was over 40 years ago. While monetary policy is an ongoing
process subject to change, the Fed does appear to be steadfast in its mission to
bring the rate of inflation back to its preferred level of 2.0%, and that will
take some time, in my opinion. Stay tuned!

Equity and fixed income markets have contended with numerous headwinds this
year, such as the war between Russia and Ukraine. Since setting its all-time
high of 4,796.56 on January 3, 2022, the S&P 500(R) Index has been in a bear
market (a price decline of 20% or more from the most recent high) for the better
part of 310 days. Suffice it to say, we are all looking forward to the end of
this bear market. With respect to corrections and bear markets, the silver
lining is that the S&P 500(R) Index has never failed to fully recover the losses
sustained in any previous downturn. Where might we see demand for stocks moving
forward? One such source could be stock buybacks. As of the last week of October
2022, U.S. companies had announced stock buybacks totaling $1 trillion so far
this year, according to Birinyi Associates. The fixed income market has not been
immune to selling pressure either. Year-to-date through November 10, 2022,
yields on the 10-Year Treasury Note increased by 258 basis points. As you may be
aware, bond yields and bond prices are inversely related, particularly with
respect to investment-grade bonds. As yields rise, prices fall and vice versa.
As noted above, the Fed has more work to do, so bond investors should not be
surprised to see interest rates and bond yields trend at least a bit higher in
the months ahead.

Thank you for giving First Trust the opportunity to play a role in your
financial future. We value our relationship with you and will report on the Fund
again in six months.

Sincerely,

/s/ James A. Bowen

James A. Bowen
Chairman of the Board of Trustees
Chief Executive Officer of First Trust Advisors L.P.


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FUND PERFORMANCE OVERVIEW (UNAUDITED)
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FIRST TRUST SENIOR LOAN FUND (FTSL)

The First Trust Senior Loan Fund's (the "Fund") primary investment objective is
to provide high current income. The Fund's secondary investment objective is the
preservation of capital. Under normal market conditions, the Fund seeks to
outperform each of the Morningstar(R) LSTA(R) US Leveraged Loan 100 Index (the
"LL 100") and the Markit iBoxx USD Liquid Leveraged Loan Index (the "MI 100") by
investing at least 80% of its net assets (including investment borrowings) in
first lien senior floating rate bank loans ("Senior Loans"). The LL 100 is a
market value-weighted index designed to measure the performance of the largest
segment of the U.S. syndicated leveraged loan market. The LL 100 consists of 100
loan facilities drawn from a larger benchmark, the Morningstar(R) LSTA(R) US
Leveraged Loan Index. The MI 100 selects the 100 most liquid Senior Loans in the
market. The Fund does not seek to track either the LL 100 or MI 100, but rather
seeks to outperform each of the Indices. It is anticipated that the Fund, in
accordance with its principal investment strategy, will invest approximately 50%
to 75% of its net assets in Senior Loans that are eligible for inclusion in and
meet the liquidity thresholds of the LL 100 and/or MI 100 at the time of
investment.

A Senior Loan is an advance or commitment of funds made by one or more banks or
similar financial institutions to one or more corporations, partnerships or
other business entities and typically pays interest at a floating or adjusting
rate that is determined periodically at a designated premium above a base
lending rate, such as the London Interbank Offered Rate ("LIBOR"), the Secured
Overnight Financing Rate ("SOFR"), a similar reference rate, or the prime rate
offered by one or more major U.S. banks.

The Fund invests primarily in Senior Loans that are below investment grade
quality at the time of investment. Securities rated below investment grade,
commonly referred to as "junk" or "high-yield" securities, include securities
that are rated Ba1/BB+/BB+ or below by Moody's Investors Service, Inc., Fitch,
Inc., or S&P Global Ratings, respectively. The Fund invests in Senior Loans made
predominantly to businesses operating in North America, but may also invest in
Senior Loans made to businesses operating outside of North America. The Senior
Loans included in the Fund's portfolio often maintain a duration of less than 90
days; however, the inclusion of LIBOR floors on certain Senior Loans or other
factors may cause interest rate duration to be longer than 90 days. The Fund may
also invest up to 20% of its net assets in (1) non-Senior Loan debt securities,
which may be fixed-rate or floating-rate income-producing securities (including,
without limitation, U.S. government debt securities and corporate debt
securities, which may include convertible bonds), (2) warrants, U.S. and non
U.S. equity and equity-like positions and interests and other securities issued
by or with respect to a borrower or its affiliates, and/or (3) securities of
other investment companies.



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PERFORMANCE
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                                                                AVERAGE ANNUAL TOTAL RETURNS           CUMULATIVE TOTAL RETURNS
                                              1 Year Ended   5 Years Ended   Inception (5/1/13)   5 Years Ended   Inception (5/1/13)
                                                10/31/22       10/31/22         to 10/31/22         10/31/22         to 10/31/22
                                                                                                         
FUND PERFORMANCE
NAV                                              -2.38%          2.45%             2.70%             12.89%             28.85%
Market Price                                     -2.64%          2.39%             2.69%             12.55%             28.67%

INDEX PERFORMANCE
Morningstar(R) LSTA(R) US Leveraged Loan
   Index(1)                                      -1.76%          3.07%             3.39%             16.31%             37.23%
Markit iBoxx USD Liquid Leveraged Loan
   Index                                         -3.34%          1.67%             2.05%              8.66%             21.28%
Morningstar(R) LSTA(R) US Leveraged Loan
   100 Index(2)                                  -2.34%          2.72%             2.88%             14.39%             31.01%
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Total returns for the period since inception are calculated from the inception
date of the Fund. "Average Annual Total Returns" represent the average annual
change in value of an investment over the periods indicated. "Cumulative Total
Returns" represent the total change in value of an investment over the periods
indicated.

The Fund's per share net asset value ("NAV") is the value of one share of the
Fund and is computed by dividing the value of all assets of the Fund (including
accrued interest and dividends), less all liabilities (including accrued
expenses and dividends declared but unpaid), by the total number of outstanding
shares. The price used to calculate market return ("Market Price") is determined
by using the midpoint of the national best bid and offer price ("NBBO") as of
the time that the Fund's NAV is calculated. Under SEC rules, the NBBO consists
of the highest displayed buy and lowest sell prices among the various exchanges
trading the Fund at the time the Fund's NAV is calculated. Prior to January 1,
2019, the price used was the midpoint between the highest bid and the lowest
offer on the stock exchange on which shares of the Fund were listed for trading
as of the time that the Fund's NAV was calculated. Since shares of the Fund did
not trade in the secondary market until after the Fund's inception, for the
period from inception to the first day of secondary market trading in shares of
the Fund, the NAV of the Fund is used as a proxy for the secondary market
trading price to calculate market returns. NAV and market returns assume that
all distributions have been reinvested in the Fund at NAV and Market Price,
respectively.

An index is a statistical composite that tracks a specified financial market or
sector. Unlike the Fund, the indices do not actually hold a portfolio of
securities and therefore do not incur the expenses incurred by the Fund. These
expenses negatively impact the performance of the Fund. Also, market returns do
not include brokerage commissions that may be payable on secondary market
transactions. If brokerage commissions were included, market returns would be
lower. The total returns presented reflect the reinvestment of dividends on
securities in the indices. The returns presented do not reflect the deduction of
taxes that a shareholder would pay on Fund distributions or the redemption or
sale of Fund shares. The investment return and principal value of shares of the
Fund will vary with changes in market conditions. Shares of the Fund may be
worth more or less than their original cost when they are redeemed or sold in
the market. The Fund's past performance is no guarantee of future performance.

(1)   Formerly, S&P/LSTA Leveraged Loan Index.

(2)   Formerly, S&P/LSTA U.S. Leveraged Loan 100 Index.


Page 2





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FUND PERFORMANCE OVERVIEW (UNAUDITED) (CONTINUED)
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FIRST TRUST SENIOR LOAN FUND (FTSL)

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                                      % OF SENIOR LOANS
                                          AND OTHER
INDUSTRY CLASSIFICATION                 SECURITIES(1)
-------------------------------------------------------
Software                                    24.9%
Insurance                                   11.7
Health Care Technology                       9.8
Media                                        8.6
Hotels, Restaurants & Leisure                8.0
Health Care Providers & Services             8.0
Containers & Packaging                       4.0
Electric Utilities                           2.6
Professional Services                        2.5
Diversified Telecommunication Services       1.9
Health Care Equipment & Supplies             1.8
Commercial Services & Supplies               1.7
Pharmaceuticals                              1.7
Capital Markets                              1.7
Specialty Retail                             1.4
Wireless Telecommunication Services          1.3
Trading Companies & Distributors             1.2
Electronic Equipment, Instruments &
   Components                                1.2
IT Services                                  1.1
Diversified Consumer Services                1.0
Diversified Financial Services               1.0
Machinery                                    0.5
Road & Rail                                  0.4
Food Products                                0.4
Aerospace & Defense                          0.4
Auto Components                              0.3
Beverages                                    0.3
Household Durables                           0.2
Entertainment                                0.2
Communications Equipment                     0.1
Building Products                            0.1
Life Sciences Tools & Services               0.0*
                                          --------
     Total                                 100.0%
                                          ========

* Amount is less than 0.1%.


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                                      % OF SENIOR LOANS
                                          AND OTHER
ASSET CLASSIFICATION                    SECURITIES(1)
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Senior Floating-Rate Loan Interests         89.0%
Corporate Bonds and Notes                   10.0
Foreign Corporate Bonds and Notes            0.9
Common Stocks                                0.1
Warrants                                     0.0*
Rights                                       0.0*
                                          --------
     Total                                 100.0%
                                          ========

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                                      % OF SENIOR LOANS
                                          AND OTHER
CREDIT QUALITY (S&P RATINGS)(2)       DEBT SECURITIES(1)
-------------------------------------------------------
BBB-                                         2.6%
BB+                                          4.5
BB                                           2.2
BB-                                          9.1
B+                                          17.4
B                                           41.5
B-                                          17.6
CCC+                                         2.8
CCC                                          0.9
NR                                           1.4
                                          --------
     Total                                 100.0%
                                          ========

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                                      % OF SENIOR LOANS
                                          AND OTHER
TOP 10 ISSUERS                          SECURITIES(1)
-------------------------------------------------------
HUB International Ltd.                       3.6%
Internet Brands, Inc. (WebMD/MH Sub I
   LLC)                                      3.3
IRB Holding Corp. (Arby's/Inspire Brands)    3.2
Verscend Technologies, Inc. (Cotiviti)       3.0
Hyland Software, Inc.                        2.8
AssuredPartners, Inc.                        2.7
PG&E Corp.                                   2.6
Alliant Holdings I LLC                       2.6
Charter Communications Operating LLC         2.5
USI, Inc. (fka Compass Investors, Inc.)      2.3
                                          --------
     Total                                  28.6%
                                          ========

(1)   Percentages are based on long-term positions. Money market funds are
      excluded.

(2)   The ratings are by S&P Global Ratings. A credit rating is an assessment
      provided by a nationally recognized statistical rating organization
      (NRSRO) of the creditworthiness of an issuer with respect to debt
      obligations except for those debt obligations that are privately rated.
      Ratings are measured on a scale that generally ranges from AAA (highest)
      to D (lowest). Investment grade is defined as those issuers that have a
      long-term credit rating of BBB- or higher. The credit ratings shown relate
      to the credit worthiness of the issuers of the underlying securities in
      the Fund, and not to the Fund or its shares. Credit ratings are subject to
      change.


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FUND PERFORMANCE OVERVIEW (UNAUDITED) (CONTINUED)
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FIRST TRUST SENIOR LOAN FUND (FTSL)



                                   PERFORMANCE OF A $10,000 INITIAL INVESTMENT
                                         MAY 1, 2013 - OCTOBER 31, 2022

                                      Morningstar(R)        Markit iBoxx USD        Morningstar(R)
            First Trust Senior     LSTA(R) US Leveraged     Liquid Leveraged     LSTA(R) US Leveraged
                Loan Fund               Loan Index             Loan Index           Loan 100 Index
                                                                           
5/1/13           $10,000                 $10,000                $10,000                $10,000
10/31/13          10,092                  10,122                 10,103                 10,150
4/30/14           10,275                  10,338                 10,323                 10,382
10/31/14          10,385                  10,434                 10,389                 10,492
4/30/15           10,637                  10,589                 10,594                 10,730
10/31/15          10,567                  10,268                 10,280                 10,540
4/30/16           10,763                  10,527                 10,484                 10,707
10/31/16          11,034                  10,968                 10,826                 11,230
4/30/17           11,247                  11,260                 11,026                 11,568
10/31/17          11,414                  11,452                 11,161                 11,799
4/30/18           11,592                  11,706                 11,404                 12,080
10/31/18          11,760                  11,929                 11,602                 12,334
4/30/19           12,044                  12,262                 11,877                 12,592
10/31/19          12,156                  12,339                 11,905                 12,663
4/30/20           11,619                  11,765                 11,122                 11,759
10/31/20          12,266                  12,527                 11,798                 12,880
4/30/21           12,978                  13,193                 12,387                 13,653
10/31/21          13,198                  13,412                 12,547                 13,969
4/30/22           13,175                  13,419                 12,441                 14,053
10/31/22          12,885                  13,101                 12,128                 13,723


Performance figures assume reinvestment of all distributions and do not reflect
the deduction of taxes that a shareholder would pay on Fund distributions or the
redemption or sale of Fund shares. An index is a statistical composite that
tracks a specified financial market or sector. Unlike the Fund, the indices do
not actually hold a portfolio of securities and therefore do not incur the
expenses incurred by the Fund. These expenses negatively impact the performance
of the Fund. The Fund's past performance does not predict future performance.

FREQUENCY DISTRIBUTION OF DISCOUNTS AND PREMIUMS

Information showing the number of days the market price of the Fund's shares was
greater (at a premium) and less (at a discount) than the Fund's net asset value
for the most recently completed year, and the most recently completed calendar
quarters since that year (or life of the Fund, if shorter) is available at
https://www.ftportfolios.com/Retail/etf/home.aspx.


Page 4





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PORTFOLIO COMMENTARY
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                 ANNUAL REPORT
                          OCTOBER 31, 2022 (UNAUDITED)

                                    ADVISOR

The First Trust Advisors L.P. ("First Trust") Leveraged Finance Team is
comprised of 17 experienced investment professionals specializing in below
investment grade securities. The team is comprised of portfolio management,
research, trading and operations personnel. As of October 31, 2022, the First
Trust Leveraged Finance Team managed or supervised approximately $5.8 billion in
senior secured bank loans and high-yield bonds. These assets are managed across
various strategies, including two closed-end funds, an open-end fund, four
exchange-traded funds, and a series of unit investment trusts on behalf of
retail and institutional clients.

                           PORTFOLIO MANAGEMENT TEAM

WILLIAM HOUSEY, CFA - MANAGING DIRECTOR OF FIXED INCOME AND SENIOR
   PORTFOLIO MANAGER
JEFFREY SCOTT, CFA - SENIOR VICE PRESIDENT AND PORTFOLIO MANAGER

The portfolio managers are primarily and jointly responsible for the day-to-day
management of the Fund. Mr. Housey has served as a part of the portfolio
management team of the Fund since 2013 while Mr. Scott has served as a part of
the portfolio management team of the Fund since 2020.

                                   COMMENTARY

The First Trust Senior Loan Fund (the "Fund") is an actively managed
exchange-traded fund ("ETF"). The Fund's primary investment objective is to
provide high current income, with a secondary objective of preservation of
capital.

MARKET RECAP

In the last 12-month ("LTM") period ended October 31, 2022, inflation remained
stubbornly elevated with the October Consumer Price Index printing 7.7% on a
year-over-year basis; meanwhile, the Federal Reserve ("Fed") continues to
reiterate its commitment to a 2.0% inflation target. The Fed increased the
Federal Funds target rate by 300 basis points ("bps") in the LTM period, moving
the upper bound from 0.25% to 3.25% over the course of five meetings. In each of
the last three meetings, the Fed increased the Federal Funds target rate by a
full 75 bps. Due to the persistence of the inflation data and how far it is from
the Fed's target inflation rate, we do not believe the Fed can "pivot" to a more
accommodative posture until either (1) inflation has tamed, or (2) a recession
is near or already underway, absent any major financial market calamity. The
10-Year U.S. Treasury yield finished the period at 4.05%, after trading from
lows of 1.34% to highs of 4.24% over the LTM period. While U.S. Equities reached
all-time highs in January 2022, investor concerns over geopolitical risks,
elevated inflation, and rapidly increasing interest rates soon dampened market
euphoria and tipped U.S. Equities into a bear market. The S&P 500(R) Index
returned -14.61% during the LTM period ended October 31, 2022.

Senior Loan Market

Senior loan spreads over the 3-month London Interbank Offered Rate ("LIBOR")
increased by 238 bps to L+654 bps during the LTM period ended October 31, 2022.
The current spread is 139 bps above the long-term average spread of L+515 bps
(December 1997 - October 2022). After experiencing six consecutive monthly
inflows, retail senior loan funds realized their sixth consecutive monthly
outflow in October 2022, bringing net inflows to $2.8 billion over the LTM
period. The market's expectation for imminent rate hikes drove strong demand for
the senior loan asset class in the first half of the period; however, as market
volatility increased, demand slowed.

In the LTM period, BB rated senior loans (+1.36%) outperformed both B rated
(-2.42%) and CCC rated senior loans (-10.66%). The average senior loan price
decreased from $98.55 at the beginning of the period to $92.19 at the end of the
period.

Default Rates

Default rates, as measured by the Morningstar(R) LSTA(R) US Leveraged Loan
Index, increased modestly over the LTM period ended October 31, 2022. The LTM
default rate of the senior loan market rose from 0.20% at the beginning of the
period to 0.83% at the end of the period, remaining well below the long-term
average of 2.76%.

FUND PERFORMANCE

The Fund returned -2.38% on a net asset value ("NAV") basis and -2.64% on a
market price basis over the LTM period ended October 31, 2022. The
Morningstar(R) LSTA(R) US Leveraged Loan Index ("the Benchmark") returned -1.76%
over the same period.


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PORTFOLIO COMMENTARY (CONTINUED)
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                 ANNUAL REPORT
                          OCTOBER 31, 2022 (UNAUDITED)

The Fund held 210 individual positions diversified across 32 industries at the
end of the reporting period; by comparison, the Fund held 233 individual
positions across 35 industries at the beginning of the period. Software
(24.83%), Insurance (11.60%), and Healthcare Technology (9.95%) comprised the
Fund's top three industry exposures at the end of the period. The Fund increased
its allocation to high-yield bonds by 515 bps from 5.74% to 10.89% throughout
the period. The Fund's duration modestly increased from 0.39 years at the
beginning of the period to 0.61 years at the end of the period.

The Fund benefited from its higher quality positioning relative to the Benchmark
as the investment team increased exposure to BBB rated and BB rated credit to
reduce overall portfolio volatility and enhance liquidity. As of October 31,
2022, the Fund maintained allocations to BBB rated, BB rated, B rated, and CCC
and below rated assets (including Not Rated) of 2.59%, 15.80%, 76.52%, and
5.09%, respectively. Strong security selection within Software and Healthcare
Technology, in addition to defensive overweight positions in the Insurance
industry, benefited performance.

The Fund's allocation to high-yield bonds proved to be a headwind to performance
during the period as high-yield bonds underperformed senior loans in the LTM
period. As high-yield bond prices have fallen over the course of the period, the
Fund has increased its exposure to higher quality, relatively short dated,
high-yield bonds to bolster the Fund's liquidity and credit quality. While this
has resulted in a modest headwind, we believe this position will serve the Fund
well over time. Further, the Fund's overweight to the Health Care Providers &
Services industry detracted from performance. Healthcare providers across the
industry continue to recover from the lingering negative impacts of the COVID-19
pandemic. The Fund's lack of holdings in the Oil, Gas & Consumable Fuels
industry also detracted from performance. The industry outperformed the overall
Benchmark throughout the LTM period as crude oil prices remained elevated.

The Fund's most recent monthly distribution of $0.228 per share exceeds the
distribution paid in October 2021 by $0.103 per share. The effective yield based
on the Fund's distributions over the trailing twelve months was 4.24%, based on
NAV, at the end of the period.

The Fund experienced one default in a senior secured debt position in the LTM
period. By comparison, the Benchmark experienced 9 defaults in the LTM period.
Since inception, the Fund has experienced 10 defaults, compared to 152 within
the Benchmark over the same period. The Fund's LTM default rate of 0.82% was in
line with the Benchmark's LTM default rate of 0.83% at the end of the period.

MARKET AND FUND OUTLOOK

Our market framework centers on our view that the Fed will stay the course,
ultimately holding interest rates at such a restrictive level that it tilts the
economy into recession, most likely in the second half of 2023, in our opinion.
We therefore expect market volatility to continue as investors attempt to gauge
the ultimate Federal Funds target rate, as well as the likelihood, and timing
of, a recession. Consequently, we favor increasing credit quality while
defensively positioning in sectors with limited cyclicality. Further, we believe
improved valuations have created attractive opportunities in the corporate
credit landscape. As we assess such market opportunities, we continue to employ
our bottom-up credit underwriting process and rigorous approach to risk
management.


Page 6





FIRST TRUST SENIOR LOAN FUND (FTSL)

UNDERSTANDING YOUR FUND EXPENSES
OCTOBER 31, 2022 (UNAUDITED)

As a shareholder of First Trust Senior Loan Fund (the "Fund"), you incur two
types of costs: (1) transaction costs; and (2) ongoing costs, including
management fees, distribution and/or service (12b-1) fees, if any, and other
Fund expenses. This Example is intended to help you understand your ongoing
costs of investing in the Fund and to compare these costs with the ongoing costs
of investing in other funds.

The Example is based on an investment of $1,000 invested at the beginning of the
period and held through the six-month period ended October 31, 2022.

ACTUAL EXPENSES

The first line in the following table provides information about actual account
values and actual expenses. You may use the information in this line, together
with the amount you invested, to estimate the expenses that you paid over the
period. Simply divide your account value by $1,000 (for example, an $8,600
account value divided by $1,000 = 8.6), then multiply the result by the number
in the first line under the heading entitled "Expenses Paid During the Six-Month
Period" to estimate the expenses you paid on your account during this six-month
period.

HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES

The second line in the following table provides information about hypothetical
account values and hypothetical expenses based on the Fund's actual expense
ratio and an assumed rate of return of 5% per year before expenses, which is not
the Fund's actual return. The hypothetical account values and expenses may not
be used to estimate the actual ending account balance or expenses you paid for
the period. You may use this information to compare the ongoing costs of
investing in the Fund and other funds. To do so, compare this 5% hypothetical
example with the 5% hypothetical examples that appear in the shareholder reports
of the other funds.

Please note that the expenses shown in the table are meant to highlight your
ongoing costs only and do not reflect any transactional costs such as brokerage
commissions. Therefore, the second line in the table is useful in comparing
ongoing costs only, and will not help you determine the relative total costs of
owning different funds. In addition, if these transactional costs were included,
your costs would have been higher.



-----------------------------------------------------------------------------------------------------------------------
                                                                                         ANNUALIZED
                                                                                        EXPENSE RATIO    EXPENSES PAID
                                                     BEGINNING           ENDING         BASED ON THE       DURING THE
                                                   ACCOUNT VALUE     ACCOUNT VALUE        SIX-MONTH        SIX-MONTH
                                                    MAY 1, 2022     OCTOBER 31, 2022     PERIOD (a)      PERIOD (a) (b)
-----------------------------------------------------------------------------------------------------------------------
                                                                                                 
FIRST TRUST SENIOR LOAN FUND (FTSL)
Actual                                               $1,000.00         $  978.00            0.85%            $4.24
Hypothetical (5% return before expenses)             $1,000.00         $1,020.92            0.85%            $4.33


(a)   Annualized expense ratio and expenses paid during the six-month period do
      not include fees and expenses of the underlying funds in which the Fund
      invests.

(b)   Expenses are equal to the annualized expense ratio as indicated in the
      table multiplied by the average account value over the period (May 1, 2022
      through October 31, 2022), multiplied by 184/365 (to reflect the six-month
      period).


                                                                          Page 7





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS -- 84.2%

                  AEROSPACE & DEFENSE -- 0.3%
$      9,430,956  Transdigm, Inc., Tranche G Refinancing Term Loan, 3 Mo.
                     LIBOR + 2.25%, 0.00% Floor...................................       5.92%       08/22/24    $     9,268,084
                                                                                                                 ---------------
                  APPLICATION SOFTWARE -- 17.6%
       1,999,465  AppLovin Corp., Amendment No. 6 New Term Loan, 3 Mo.
                     LIBOR + 3.00%, 0.50% Floor...................................       6.67%       10/25/28          1,925,485
         832,752  CCC Intelligent Solutions, Inc., Term Loan B, 1 Mo. LIBOR +
                     2.25%, 0.50% Floor...........................................       6.00%       09/21/28            813,324
      15,278,188  ConnectWise LLC, Term Loan B, 3 Mo. LIBOR + 3.50%, 0.50%
                     Floor........................................................       7.17%       09/30/28         14,393,275
      42,395,910  Epicor Software Corp., Term Loan C (First Lien), 1 Mo. LIBOR
                     + 3.25%, 0.75% Floor.........................................       7.00%       07/30/27         40,318,511
       1,035,128  Flexera Software LLC, 2020 Term Loan B, 1 Mo. LIBOR +
                     3.75%, 0.75% Floor...........................................       7.51%       01/26/28            994,375
      30,962,050  Gainwell Acquisition Corp. (fka Milano), Term Loan B, 3 Mo.
                     LIBOR + 4.00%, 0.75% Floor...................................       7.67%       10/01/27         29,362,241
      14,351,447  Go Daddy Operating Co. LLC, Term Loan B2, 1 Mo. LIBOR +
                     1.75%, 0.00% Floor...........................................       5.50%       02/15/24         14,243,811
      63,152,882  Greeneden U.S. Holdings II LLC (Genesys Telecommunications
                     Laboratories, Inc.), Initial Dollar Term Loan, 1 Mo. LIBOR +
                     4.00%, 0.75% Floor...........................................       7.75%       12/01/27         61,455,964
      18,023,272  Hyland Software, Inc., Term Loan (Second Lien), 1 Mo. LIBOR
                     + 6.25%, 0.75% Floor.........................................      10.00%       07/10/25         17,246,108
      61,547,877  Hyland Software, Inc., Term Loan B, 1 Mo. LIBOR + 3.50%,
                     0.75% Floor..................................................       7.25%       07/01/24         59,958,095
       2,017,964  Imprivata, Inc., Term Loan B, 1 Mo. LIBOR + 3.75%, 0.50%
                     Floor........................................................       7.50%       11/30/27          1,969,411
       2,872,628  Informatica Corp., Term Loan B, 1 Mo. LIBOR + 2.75%, 0.00%
                     Floor........................................................       6.56%       10/29/28          2,792,424
      23,747,670  Internet Brands, Inc. (WebMD/MH Sub I LLC), 2020 June New
                     Term Loan, 1 Mo. LIBOR + 3.75%, 1.00% Floor..................       7.50%       09/15/24         22,832,435
      60,521,461  Internet Brands, Inc. (WebMD/MH Sub I LLC), Initial Term
                     Loan, 1 Mo. LIBOR + 3.75%, 0.00% Floor.......................       7.50%       09/13/24         58,176,255
      11,578,646  Internet Brands, Inc. (WebMD/MH Sub I LLC), Term Loan
                     (Second Lien), 1 Mo. SOFR + 6.25%, 0.00% Floor...............       9.98%       02/23/29         10,579,988
       5,866,829  ION Trading Technologies Ltd., Term Loan B, 3 Mo. LIBOR +
                     4.75%, 0.00% Floor...........................................       8.42%       04/01/28          5,442,716
      30,837,876  LogMeIn, Inc. (GoTo Group, Inc.), Term Loan B, 1 Mo. LIBOR
                     + 4.75%, 0.00% Floor.........................................       8.32%       08/31/27         19,376,363
      24,921,983  McAfee Corp. (Condor Merger Sub, Inc.), Term Loan B, 1 Mo.
                     SOFR + 3.75%, 0.50% Floor....................................       6.87%       02/28/29         22,757,010
         247,071  Micro Focus International (MA Financeco LLC), Seattle Spinco
                     Term Loan B, 1 Mo. LIBOR + 2.75%, 0.00% Floor................       6.50%       06/21/24            243,830
         847,903  Open Text Corp. (GSX), Term Loan B, 1 Mo. LIBOR + 1.75%,
                     0.00% Floor..................................................       5.50%       05/30/25            833,862
      14,335,603  RealPage, Inc., Term Loan (Second Lien), 1 Mo. LIBOR +
                     6.50%, 0.75% Floor...........................................      10.25%       04/22/29         13,762,179
      52,659,570  RealPage, Inc., Term Loan B, 1 Mo. LIBOR + 3.00%, 0.50%
                     Floor........................................................       6.75%       04/24/28         49,401,523
      58,905,824  SolarWinds Holdings, Inc., Initial Term Loan, 1 Mo. LIBOR +
                     2.75%, 0.00% Floor...........................................       6.50%       02/05/24         58,263,162
       6,319,557  Solera Holdings, Inc. (Polaris Newco), Term Loan B, 3 Mo.
                     LIBOR + 4.00%, 0.50% Floor...................................       7.67%       06/04/28          5,759,581



Page 8                  See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  APPLICATION SOFTWARE (CONTINUED)
$        373,580  Tenable, Inc., Term Loan B, 3 Mo. LIBOR + 2.75%, 0.50%
                     Floor........................................................       7.16%       07/07/28    $       359,881
         681,730  Ultimate Kronos Group (UKG, Inc.), 2021 Term Loan, 3 Mo.
                     LIBOR + 3.25%, 0.50% Floor...................................       7.00%       05/03/26            656,826
       3,953,315  Veeam Software Holdings Ltd. (VS Buyer LLC), Term Loan B,
                     1 Mo. LIBOR + 3.00%, 0.00% Floor.............................       6.75%       02/28/27          3,837,997
                                                                                                                 ---------------
                                                                                                                     517,756,632
                                                                                                                 ---------------
                  ASSET MANAGEMENT & CUSTODY BANKS -- 1.6%
      15,451,614  Edelman Financial Engines Center LLC, Term Loan (Second
                     Lien), 1 Mo. LIBOR + 6.75%, 0.00% Floor......................      10.50%       07/20/26         13,925,768
      35,701,619  Edelman Financial Engines Center LLC, Term Loan B, 1 Mo.
                     LIBOR + 3.50%, 0.75% Floor...................................       7.25%       04/07/28         33,233,923
                                                                                                                 ---------------
                                                                                                                      47,159,691
                                                                                                                 ---------------
                  AUTO PARTS & EQUIPMENT -- 0.3%
       9,186,973  Clarios Global L.P. (Power Solutions), Term Loan B, 1 Mo.
                     LIBOR + 3.25%, 0.00% Floor...................................       7.00%       04/30/26          8,915,682
                                                                                                                 ---------------
                  BROADCASTING -- 2.4%
       1,052,397  E.W. Scripps Co., Tranche B-3 Term Loan, 1 Mo. LIBOR +
                     2.75%, 0.75% Floor...........................................       6.50%       01/07/28          1,034,422
       7,120,978  Gray Television, Inc., Term Loan B2, 1 Mo. LIBOR + 2.50%,
                     0.00% Floor..................................................  5.62% - 5.63%    02/07/24          7,112,076
       7,369,088  Gray Television, Inc., Term Loan C, 1 Mo. LIBOR + 2.50%,
                     0.00% Floor..................................................       5.63%       01/02/26          7,235,045
      24,939,453  iHeartCommunications, Inc., Second Amendment Incremental
                     Term Loan B, 1 Mo. LIBOR + 3.25%, 0.50% Floor................       7.00%       05/01/26         23,513,166
       6,502,712  iHeartCommunications, Inc., Term Loan B, 1 Mo. LIBOR +
                     3.00%, 0.00% Floor...........................................       6.75%       05/01/26          6,128,806
      10,253,627  Nexstar Broadcasting, Inc., Incremental Term Loan B-4, 1 Mo.
                     LIBOR + 2.50%, 0.00% Floor...................................       6.25%       09/19/26         10,135,403
      15,399,985  Univision Communications, Inc., 2021 Replacement New Term
                     Loan (First Lien), 1 Mo. LIBOR + 3.25%, 0.75% Floor..........       7.00%       03/15/26         14,899,486
                                                                                                                 ---------------
                                                                                                                      70,058,404
                                                                                                                 ---------------
                  BUILDING PRODUCTS -- 0.1%
       2,127,437  Hunter Douglas, Inc. (Solis), Term Loan B, 3 Mo. SOFR +
                     3.50%, 0.50% Floor...........................................       6.34%       02/28/29          1,760,007
         371,797  Quikrete Holdings, Inc., Term Loan B-1, 1 Mo. LIBOR + 3.00%,
                     0.00% Floor..................................................       6.75%       03/18/29            361,903
                                                                                                                 ---------------
                                                                                                                       2,121,910
                                                                                                                 ---------------
                  CABLE & SATELLITE -- 1.2%
      16,039,986  Cablevision (aka CSC Holdings LLC), March 2017 Term Loan
                     B-1, 1 Mo. LIBOR + 2.25%, 0.00% Floor........................       5.66%       07/17/25         15,488,692
      15,443,713  Charter Communications Operating LLC, Term Loan B1, 1 Mo.
                     LIBOR + 1.75%, 0.00% Floor...................................       5.51%       04/30/25         15,236,922
       5,626,843  Radiate Holdco LLC (Astound), Inc., Amendment No. 6 Term
                     Loan, 1 Mo. LIBOR + 3.25%, 0.75% Floor.......................       7.00%       09/25/26          5,140,121
                                                                                                                 ---------------
                                                                                                                      35,865,735
                                                                                                                 ---------------
                  CASINOS & GAMING -- 2.0%
      29,955,665  Caesars Resort Collection LLC, Term Loan B, 1 Mo. LIBOR +
                     2.75%, 0.00% Floor...........................................       6.50%       12/22/24         29,594,700



                        See Notes to Financial Statements                 Page 9





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  CASINOS & GAMING (CONTINUED)
$     28,870,745  Golden Nugget, Inc. (Fertitta Entertainment LLC), Initial Term
                     Loan B, 1 Mo. SOFR + 4.00%, 0.50% Floor......................       7.73%       01/27/29    $    27,023,017
         498,750  Light & Wonder (FKA Scientific Games International, Inc.),
                     Term Loan B, 1 Mo. SOFR + 3.00%, 0.50% Floor.................       6.40%       04/07/29            491,164
       1,699,679  Scientific Games Holdings L.P. (Scientific Games Lottery),
                     Initial Dollar Term Loan, 3 Mo. SOFR + 3.50%, 0.50% Floor....       7.10%       04/04/29          1,598,344
                                                                                                                 ---------------
                                                                                                                      58,707,225
                                                                                                                 ---------------
                  COMMUNICATIONS EQUIPMENT -- 0.1%
       2,597,685  Commscope, Inc., Term Loan B, 1 Mo. LIBOR + 3.25%, 0.00%
                     Floor........................................................       7.00%       04/06/26          2,471,048
                                                                                                                 ---------------
                  DATA PROCESSING & OUTSOURCED SERVICES -- 0.2%
       8,154,428  Paysafe Holdings (US) Corp., Facility B1 Loan, 1 Mo. LIBOR +
                     2.75%, 0.50% Floor...........................................       6.50%       06/24/28          7,349,178
                                                                                                                 ---------------
                  EDUCATION SERVICES -- 0.4%
      11,887,492  Ascensus Holdings, Inc. (Mercury), Term Loan (First Lien),
                     3 Mo. LIBOR + 3.50%, 0.50% Floor.............................       7.19%       08/02/28         11,114,805
                                                                                                                 ---------------
                  ELECTRIC UTILITIES -- 2.5%
      74,556,427  PG&E Corp., Term Loan B, 1 Mo. LIBOR + 3.00%, 0.50%
                     Floor........................................................       6.81%       06/23/25         73,233,050
                                                                                                                 ---------------
                  ELECTRONIC EQUIPMENT & INSTRUMENTS -- 1.1%
      11,846,091  Chamberlain Group, Inc. (Chariot), Term Loan B, 1 Mo. LIBOR
                     + 3.50%, 0.50% Floor.........................................       7.25%       11/03/28         10,733,387
      24,368,948  Verifone Systems, Inc., Term Loan B, 3 Mo. LIBOR + 4.00%,
                     0.00% Floor..................................................       7.00%       08/20/25         21,621,349
                                                                                                                 ---------------
                                                                                                                      32,354,736
                                                                                                                 ---------------
                  ENVIRONMENTAL & FACILITIES SERVICES -- 0.8%
      10,801,557  GFL Environmental Inc., Term Loan B, 3 Mo. LIBOR + 3.00%,
                     0.50% Floor..................................................       7.41%       05/31/25         10,732,319
      14,021,097  Packers Holdings LLC (PSSI), Term Loan B, 1 Mo. LIBOR +
                     3.25%, 0.75% Floor...........................................       6.56%       03/15/28         12,815,283
                                                                                                                 ---------------
                                                                                                                      23,547,602
                                                                                                                 ---------------
                  HEALTH CARE EQUIPMENT -- 0.0%
         913,325  Embecta Corp., Initial Term Loan, 3 Mo. SOFR + 3.00%, 0.50%
                     Floor........................................................       6.55%       03/31/29            888,784
                                                                                                                 ---------------
                  HEALTH CARE FACILITIES -- 0.7%
      16,722,045  Ardent Health Services, Inc. (AHP Health Partners, Inc.), Term
                     Loan B, 1 Mo. LIBOR + 3.50%, 0.50% Floor.....................       7.25%       08/24/28         15,865,040
       4,995,742  Select Medical Corp., Term Loan B, 1 Mo. LIBOR + 2.50%,
                     0.00% Floor..................................................       6.26%       03/06/25          4,850,566
                                                                                                                 ---------------
                                                                                                                      20,715,606
                                                                                                                 ---------------
                  HEALTH CARE SERVICES -- 4.5%
      33,153,530  ADMI Corp. (Aspen Dental), 2020 Incremental Term Loan B2,
                     1 Mo. LIBOR + 3.38%, 0.50% Floor.............................       7.13%       12/23/27         29,490,065
      12,541,864  ADMI Corp. (Aspen Dental), 2021 Incremental Term Loan B3,
                     1 Mo. LIBOR + 3.75%, 0.50% Floor.............................       7.50%       12/23/27         11,193,614
       7,346,046  Aveanna Healthcare LLC, 2021 Term Loan B, 1 Mo. LIBOR +
                     3.75%, 0.50% Floor...........................................       7.32%       07/15/28          5,869,490
         516,032  Aveanna Healthcare LLC, Delayed Draw Term Loan, 1 Mo.
                     LIBOR + 3.75%, 0.50% Floor...................................       7.32%       07/15/28            412,309



Page 10                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  HEALTH CARE SERVICES (CONTINUED)
$     19,223,985  Brightspring Health (Phoenix Guarantor, Inc.), Incremental Term
                     Loan B-3, 1 Mo. LIBOR + 3.50%, 0.00% Floor...................       7.25%       03/05/26    $    18,427,920
      24,203,307  CHG Healthcare Services, Inc., Term Loan B, 1 Mo. LIBOR +
                     3.25%, 0.50% Floor...........................................       7.00%       09/30/28         23,451,311
       8,274,447  DaVita, Inc., Term Loan B, 1 Mo. LIBOR + 1.75%, 0.00%
                     Floor........................................................       5.50%       08/12/26          7,986,579
      12,886,828  ExamWorks Group, Inc. (Electron Bidco), Term Loan B, 1 Mo.
                     LIBOR + 3.00%, 0.50% Floor...................................       6.75%       10/29/28         12,439,784
      10,495,060  Global Medical Response, Inc. (fka Air Medical), 2018 New
                     Term Loan, 1 Mo. LIBOR + 4.25%, 1.00% Floor..................       8.00%       03/14/25          8,074,689
       1,356,781  Global Medical Response, Inc. (fka Air Medical), 2021
                     Refinancing Term Loan, 1 Mo. LIBOR + 4.25%, 1.00% Floor......       7.38%       10/02/25          1,044,721
       1,761,425  Packaging Coordinators, Inc. (PCI Pharma), Term Loan B, 3 Mo.
                     LIBOR + 3.75%, 0.75% Floor...................................       7.42%       11/30/27          1,699,229
       2,930,589  Radnet Management, Inc., Term Loan B, 1 Mo. LIBOR + 3.00%,
                     0.75% Floor..................................................       6.75%       04/22/28          2,839,008
         744,599  SCP Health (Onex TSG Intermediate Corp.), Term Loan B, 3 Mo.
                     LIBOR + 4.75%, 0.75% Floor...................................       9.16%       02/28/28            660,832
       3,608,638  Sevita (National Mentor Holdings, Inc.), Term Loan B, 1 Mo.
                     LIBOR + 3.75%, 0.75% Floor...................................       7.51%       03/01/28          2,558,849
       4,458,724  Sevita (National Mentor Holdings, Inc.), Term Loan B, 3 Mo.
                     LIBOR + 3.75%, 0.75% Floor...................................       7.43%       03/01/28          3,161,637
         247,298  Sevita (National Mentor Holdings, Inc.), Term Loan C, 3 Mo.
                     LIBOR + 3.75%, 0.75% Floor...................................       7.43%       03/01/28            175,357
       3,031,522  U.S. Anesthesia Partners Intermediate Holdings, Inc., New Term
                     Loan B, 1 Mo. LIBOR + 4.25%, 0.50% Floor.....................       7.38%       09/30/28          2,872,367
                                                                                                                 ---------------
                                                                                                                     132,357,761
                                                                                                                 ---------------
                  HEALTH CARE SUPPLIES -- 1.7%
      54,720,007  Medline Borrower L.P. (Mozart), Initial Dollar Term Loan, 1 Mo.
                     LIBOR + 3.25%, 0.50% Floor...................................       7.00%       10/21/28         50,251,024
                                                                                                                 ---------------
                  HEALTH CARE TECHNOLOGY -- 9.3%
      35,920,970  athenahealth, Inc. (Minerva Merger Sub, Inc.), Term Loan B,
                     1 Mo. SOFR + 3.50%, 0.50% Floor..............................       6.97%       02/15/29         32,748,071
      31,077,031  Ciox Health (Healthport/CT Technologies Intermediate Holdings,
                     Inc.), New Term Loan B, 1 Mo. LIBOR + 4.25%, 0.75% Floor.....       8.00%       12/16/25         28,435,483
      15,397,822  Ensemble RCM LLC (Ensemble Health), Term Loan B, 3 Mo.
                     SOFR + 3.85%, 0.00% Floor....................................       7.94%       08/01/26         15,160,388
      25,925,514  Mediware (Wellsky/Project Ruby Ultimate Parent Corp.), Term
                     Loan B, 1 Mo. LIBOR + 3.25%, 0.75% Floor.....................       7.00%       03/10/28         24,357,798
      13,233,904  Navicure, Inc. (Waystar Technologies, Inc.), Term Loan B, 1 Mo.
                     LIBOR + 4.00%, 0.00% Floor...................................       7.75%       10/23/26         12,845,224
       6,418,485  Press Ganey (Azalea TopCo, Inc.), 2021 Term Loan, 1 Mo.
                     LIBOR + 3.75%, 0.75% Floor...................................       7.50%       07/25/26          5,969,191
      10,017,402  Press Ganey (Azalea TopCo, Inc.), Term Loan B, 1 Mo. LIBOR +
                     3.50%, 0.00% Floor...........................................       7.25%       07/25/26          9,338,122
      83,254,917  Verscend Technologies, Inc. (Cotiviti), New Term Loan B-1,
                     1 Mo. LIBOR + 4.00%, 0.00% Floor.............................       7.75%       08/27/25         82,110,162
      62,198,489  Zelis Payments Buyer, Inc., New Term Loan B-1, 1 Mo. LIBOR
                     + 3.50%, 0.00% Floor.........................................       7.25%       09/30/26         61,174,702
                                                                                                                 ---------------
                                                                                                                     272,139,141
                                                                                                                 ---------------



                        See Notes to Financial Statements                Page 11





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  HOTELS, RESORTS & CRUISE LINES -- 0.5%
$      1,770,233  Alterra Mountain Company, Term Loan B-2, 1 Mo. LIBOR +
                     3.50%, 0.50% Floor...........................................       7.25%       08/17/28    $     1,727,093
      11,127,250  Four Seasons Holdings, Inc., Term Loan B, 1 Mo. LIBOR +
                     2.00%, 0.00% Floor...........................................       5.75%       11/30/23         11,101,434
       1,994,819  Wyndham Hotels & Resorts, Inc., Term Loan B, 1 Mo. LIBOR +
                     1.75%, 0.00% Floor...........................................       5.50%       05/30/25          1,980,217
                                                                                                                 ---------------
                                                                                                                      14,808,744
                                                                                                                 ---------------
                  HOUSEHOLD APPLIANCES -- 0.2%
       6,077,994  Weber-Stephen Products LLC, Term Loan B, 1 Mo. LIBOR +
                     3.25%, 0.75% Floor...........................................       7.00%       10/31/27          5,002,979
                                                                                                                 ---------------
                  HUMAN RESOURCE & EMPLOYMENT SERVICES -- 0.0%
         897,369  Alight, Inc. (fka Tempo Acq.), Extended Term Loan 2022, 1 Mo.
                     SOFR + 3.00%, 0.50% Floor....................................       6.73%       08/31/28            884,133
                                                                                                                 ---------------
                  INDUSTRIAL MACHINERY -- 0.4%
       9,793,930  Filtration Group Corp., 2021 Incremental Term Loan B, 1 Mo.
                     LIBOR + 3.50%, 0.50% Floor...................................       7.25%       10/21/28          9,438,900
       2,991,850  Filtration Group Corp., Initial Term Loan, 1 Mo. LIBOR +
                     3.00%, 0.00% Floor...........................................       6.75%       03/29/25          2,924,115
          58,413  Gates Global LLC, Term Loan B-3, 1 Mo. LIBOR + 2.50%,
                     0.75% Floor..................................................       6.25%       03/31/27             56,673
         518,612  TK Elevator Newco GMBH (Vertical U.S. Newco, Inc.), New
                     Term Loan B1 (USD), 6 Mo. LIBOR + 3.50%, 0.50% Floor.........       6.87%       07/31/27            491,712
                                                                                                                 ---------------
                                                                                                                      12,911,400
                                                                                                                 ---------------
                  INSURANCE BROKERS -- 10.0%
       2,604,312  Alliant Holdings I LLC, 2019 New Term Loan, 1 Mo. LIBOR +
                     3.25%, 0.00% Floor...........................................       7.00%       05/10/25          2,526,182
      57,765,376  Alliant Holdings I LLC, Initial Term Loan, 1 Mo. LIBOR +
                     3.25%, 0.00% Floor...........................................       7.00%       05/09/25         56,041,657
      11,612,084  Alliant Holdings I LLC, TLB-4 New Term Loan, 1 Mo. LIBOR
                     + 3.50%, 0.50% Floor.........................................       6.98%       11/06/27         11,199,391
       1,447,776  AmWINS Group, Inc., Term Loan B, 1 Mo. LIBOR + 2.25%,
                     0.75% Floor..................................................       6.00%       02/28/28          1,414,376
      12,855,578  AssuredPartners, Inc., 2021 Term Loan B, 1 Mo. LIBOR +
                     3.50%, 0.50% Floor...........................................       7.25%       02/13/27         12,241,724
      13,130,423  AssuredPartners, Inc., Incremental Term Loan 2022, 1 Mo. SOFR
                     + 3.50%, 0.50% Floor.........................................       7.23%       02/13/27         12,506,728
      43,730,098  AssuredPartners, Inc., Term Loan B, 1 Mo. LIBOR + 3.50%,
                     0.00% Floor..................................................       7.25%       02/12/27         41,652,918
       8,981,208  BroadStreet Partners, Inc., Term Loan B, 1 Mo. LIBOR + 3.00%,
                     0.00% Floor..................................................       6.75%       01/27/27          8,575,617
          95,339  HUB International Ltd., Initial Term Loan B, 2 Mo. LIBOR +
                     3.00%, 0.00% Floor...........................................       6.98%       04/25/25             93,382
      36,419,344  HUB International Ltd., Initial Term Loan B, 3 Mo. LIBOR +
                     3.00%, 0.00% Floor...........................................       7.33%       04/25/25         35,672,019
         118,522  HUB International Ltd., New Term Loan B-3, 2 Mo. LIBOR +
                     3.25%, 0.75% Floor...........................................       7.23%       04/25/25            116,273
      46,460,680  HUB International Ltd., New Term Loan B-3, 3 Mo. LIBOR +
                     3.25%, 0.75% Floor...........................................       7.53%       04/25/25         45,578,856
       1,846,154  HUB International Ltd., Term Loan B4, 3 Mo. SOFR + 4.00%,
                     0.75% Floor..................................................       8.22%       11/10/29          1,790,769



Page 12                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  INSURANCE BROKERS (CONTINUED)
$     65,106,315  USI, Inc. (fka Compass Investors, Inc.), Term Loan B, 3 Mo.
                     LIBOR + 2.75%, 0.00% Floor...................................       6.42%       05/15/24    $    64,252,121
                                                                                                                 ---------------
                                                                                                                     293,662,013
                                                                                                                 ---------------
                  INTEGRATED TELECOMMUNICATION SERVICES -- 1.5%
      11,572,789  Numericable (Altice France S.A. or SFR), Term Loan B-11,
                     3 Mo. LIBOR + 2.75%, 0.00% Floor.............................       7.16%       07/31/25         10,458,908
       1,938,776  Numericable (Altice France S.A. or SFR), Term Loan B-12,
                     3 Mo. LIBOR + 3.69%, 0.00% Floor.............................       7.77%       01/31/26          1,738,849
      12,710,805  Numericable (Altice France S.A. or SFR), Term Loan B-13,
                     3 Mo. LIBOR + 4.00%, 0.00% Floor.............................       6.91%       08/14/26         11,619,837
       6,670,107  Zayo Group Holdings, Inc., Incremental Term Loan B-2, 1 Mo.
                     SOFR + 4.25%, 0.50% Floor....................................       7.98%       03/09/27          5,525,983
      17,001,608  Zayo Group Holdings, Inc., Initial Dollar Term Loan, 1 Mo.
                     LIBOR + 3.00%, 0.00% Floor...................................       6.75%       03/09/27         13,737,299
                                                                                                                 ---------------
                                                                                                                      43,080,876
                                                                                                                 ---------------
                  MANAGED HEALTH CARE -- 0.6%
      18,338,705  Multiplan, Inc. (MPH), Term Loan B, 3 Mo. LIBOR + 4.25%,
                     0.50% Floor..................................................       7.32%       08/31/28         17,006,214
                                                                                                                 ---------------
                  METAL & GLASS CONTAINERS -- 1.0%
       4,655,429  Altium Packaging LLC (FKA Consolidated Container), Term
                     Loan B, 1 Mo. LIBOR + 2.75%, 0.50% Floor.....................       6.51%       02/03/28          4,380,247
      23,984,308  Berry Global, Inc., Term Loan Z, 1 Mo. LIBOR + 1.75%, 0.00%
                     Floor........................................................       5.05%       07/01/26         23,615,909
         725,578  PODS LLC, Term Loan B, 1 Mo. LIBOR + 3.00%, 0.75%
                     Floor........................................................       6.75%       03/31/28            697,556
                                                                                                                 ---------------
                                                                                                                      28,693,712
                                                                                                                 ---------------
                  MOVIES & ENTERTAINMENT -- 0.1%
       4,305,691  Delta 2 (Lux) S.A.R.L. (Formula One), New Facility Term Loan
                     B3, 1 Mo. LIBOR + 2.50%, 1.00% Floor.........................       6.25%       02/01/24          4,293,118
                                                                                                                 ---------------
                  OFFICE SERVICES & SUPPLIES -- 0.6%
      19,119,587  Dun & Bradstreet Corp., Refinancing Term Loan, 1 Mo. LIBOR
                     + 3.25%, 0.00% Floor.........................................       6.85%       02/08/26         18,794,554
                                                                                                                 ---------------
                  OTHER DIVERSIFIED FINANCIAL SERVICES -- 0.0%
         956,425  AlixPartners, LLP, Term Loan B, 1 Mo. LIBOR + 2.75%, 0.50%
                     Floor........................................................       6.50%       02/04/28            932,916
                                                                                                                 ---------------
                  PACKAGED FOODS & MEATS -- 0.4%
          28,361  Hostess Brands LLC (HB Holdings), Term Loan B, 1 Mo.
                     LIBOR + 2.25%, 0.75% Floor...................................       6.00%       08/03/25             27,880
      10,975,900  Hostess Brands LLC (HB Holdings), Term Loan B, 3 Mo.
                     LIBOR + 2.25%, 0.75% Floor...................................       6.66%       08/03/25         10,789,309
                                                                                                                 ---------------
                                                                                                                      10,817,189
                                                                                                                 ---------------
                  PAPER PACKAGING -- 2.7%
      30,037,997  Graham Packaging Company L.P., Initial Term Loan, 1 Mo.
                     LIBOR + 3.00%, 0.75% Floor...................................       6.75%       08/04/27         29,241,088
      12,743,393  Pactiv LLC/Evergreen Packaging LLC (fka Reynolds Group
                     Holdings), Term Loan B-2, 1 Mo. LIBOR + 3.25%, 0.00%
                     Floor........................................................       7.00%       02/05/26         12,374,727



                        See Notes to Financial Statements                Page 13





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  PAPER PACKAGING (CONTINUED)
$     33,089,997  Pactiv LLC/Evergreen Packaging LLC (fka Reynolds Group
                  Holdings), Tranche B-3 U.S. Term Loan, 1 Mo. LIBOR +
                     3.50%, 0.50% Floor...........................................       7.25%       09/20/28    $    32,061,891
       5,860,068  Reynolds Consumer Products LLC, Initial Term Loan, 1 Mo.
                     LIBOR + 1.75%, 0.00% Floor...................................       5.50%       02/04/27          5,741,226
                                                                                                                 ---------------
                                                                                                                      79,418,932
                                                                                                                 ---------------
                  PHARMACEUTICALS -- 1.5%
           5,028  GoodRX, Inc., Term Loan B, 1 Mo. LIBOR + 2.75%, 0.00%
                     Floor........................................................       6.50%       10/10/25              4,876
       1,531,494  ICON Clinical Investments LLC, Lux Term Loan B, 3 Mo.
                     LIBOR + 2.25%, 0.50% Floor...................................       5.94%       07/01/28          1,514,264
         381,573  ICON Clinical Investments LLC, US Term Loan B, 3 Mo.
                     LIBOR + 2.25%, 0.50% Floor...................................       5.94%       07/01/28            377,280
       1,912,551  IQVIA, Inc. (Quintiles), Term Loan B3, 3 Mo. LIBOR + 1.75%,
                     0.00% Floor..................................................       5.42%       06/11/25          1,901,803
          35,564  Mallinckrodt International Finance S.A., 2017 Replacement Term
                     Loan, 3 Mo. LIBOR + 5.25%, 0.75% Floor (c)...................       8.73%       09/30/27             28,785
      16,100,365  Nestle Skin Health (Sunshine Lux VII S.A.R.L./Galderma), 2021
                     Term Loan B-3, 3 Mo. LIBOR + 3.75%, 0.75% Floor..............       7.42%       10/02/26         15,305,490
      25,882,153  Parexel International Corp. (Phoenix Newco), Term Loan (First
                     Lien), 1 Mo. LIBOR + 3.25%, 0.50% Floor......................       7.00%       11/15/28         24,889,055
                                                                                                                 ---------------
                                                                                                                      44,021,553
                                                                                                                 ---------------
                  RESEARCH & CONSULTING SERVICES -- 2.3%
      44,588,546  Clarivate Analytics PLC (Camelot), Amendment No. 2
                     Incremental Term Loan, 1 Mo. LIBOR + 3.00%, 1.00%
                     Floor........................................................       6.75%       10/31/26         43,826,974
      15,994,452  Corelogic, Inc., Term Loan B, 1 Mo. LIBOR + 3.50%, 0.50%
                     Floor........................................................       7.31%       06/02/28         11,751,444
       9,294,602  J.D. Power (Project Boost Purchaser LLC), 2021 Incremental
                     Term Loan B, 1 Mo. LIBOR + 3.50%, 0.50% Floor................       7.25%       05/26/26          8,911,200
       3,107,010  Veritext Corp. (VT TopCo, Inc.), Non-Fungible Term Loan (First
                     Lien), 1 Mo. LIBOR + 3.75%, 0.75% Floor......................       7.50%       08/10/25          3,006,032
                                                                                                                 ---------------
                                                                                                                      67,495,650
                                                                                                                 ---------------
                  RESTAURANTS -- 4.6%
      37,273,121  1011778 B.C. Unlimited Liability Co. (Restaurant Brands) (aka
                     Burger King/Tim Horton's), Term Loan B-4, 1 Mo. LIBOR +
                     1.75%, 0.00% Floor...........................................       5.50%       11/14/26         36,220,155
      11,047,155  1011778 B.C. Unlimited Liability Co. (Restaurant Brands) (aka
                     Burger King/Tim Horton's), Term Loan B-4, 3 Mo. LIBOR +
                     1.75%, 0.00% Floor...........................................       6.16%       11/14/26         10,735,073
      20,526,250  IRB Holding Corp. (Arby's/Inspire Brands), New Term Loan B
                     2022, 1 Mo. SOFR + 3.10%, 0.75% Floor........................       6.21%       12/15/27         19,966,910
      66,224,426  IRB Holding Corp. (Arby's/Inspire Brands), Term Loan B, 1 Mo.
                     LIBOR + 2.75%, 1.00% Floor...................................       6.50%       02/05/25         65,157,550
       4,505,343  Portillo's Holdings LLC, Term Loan B-3, 1 Mo. LIBOR + 5.50%,
                     1.00% Floor..................................................       9.25%       09/06/24          4,437,763
                                                                                                                 ---------------
                                                                                                                     136,517,451
                                                                                                                 ---------------
                  SECURITY & ALARM SERVICES -- 0.1%
       2,629,846  Garda World Security Corp., Term Loan B, 3 Mo. LIBOR +
                     4.25%, 0.00% Floor...........................................       7.24%       10/30/26          2,497,801
                                                                                                                 ---------------



Page 14                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  SOFT DRINKS -- 0.3%
$      8,987,375  Tropicana (Naked Juice LLC/Bengal Debt Merger Sub LLC),
                     Term Loan (First Lien), 3 Mo. SOFR + 3.25%, 0.50% Floor......       6.90%       01/24/29    $     8,188,038
                                                                                                                 ---------------
                  SPECIALIZED CONSUMER SERVICES -- 0.6%
       3,840,089  Aramark Services, Inc., Term Loan B-3, 1 Mo. LIBOR + 1.75%,
                     0.00% Floor..................................................       5.50%       03/11/25          3,723,273
       4,411,255  Asurion LLC, New B-8 Term Loan, 1 Mo. LIBOR + 3.25%,
                     0.00% Floor..................................................       7.00%       12/23/26          3,913,621
      12,979,453  Asurion LLC, Term Loan B-3 (Second Lien), 1 Mo. LIBOR +
                     5.25%, 0.00% Floor...........................................       9.00%       01/31/28          9,093,794
         310,779  Driven Holdings LLC, 2021 Term Loan B, 1 Year LIBOR +
                     3.00%, 0.50% Floor...........................................       3.52%       11/30/28            300,679
                                                                                                                 ---------------
                                                                                                                      17,031,367
                                                                                                                 ---------------
                  SPECIALIZED FINANCE -- 0.9%
      10,378,290  WCG Purchaser Corp. (WIRB-Copernicus Group), Term Loan B,
                     1 Mo. LIBOR + 4.00%, 1.00% Floor.............................       7.12%       01/08/27          9,814,023
      17,205,891  WCG Purchaser Corp. (WIRB-Copernicus Group), Term Loan B,
                     3 Mo. LIBOR + 4.00%, 1.00% Floor.............................       7.67%       01/08/27         16,270,407
                                                                                                                 ---------------
                                                                                                                      26,084,430
                                                                                                                 ---------------
                  SPECIALTY STORES -- 1.3%
      28,319,923  Petco Health and Wellness Co., Inc., Initial Term Loan B, 3 Mo.
                     LIBOR + 3.25%, 0.75% Floor...................................       6.92%       03/03/28         27,113,212
      11,570,206  Petsmart, Inc., Initial Term Loan B, 1 Mo. LIBOR + 3.75%,
                     0.75% Floor..................................................       7.50%       02/12/28         11,112,257
                                                                                                                 ---------------
                                                                                                                      38,225,469
                                                                                                                 ---------------
                  SYSTEMS SOFTWARE -- 5.4%
      45,510,968  Applied Systems, Inc., Term Loan (First Lien), 3 Mo. LIBOR +
                     3.00%, 0.50% Floor...........................................       6.67%       09/19/24         44,880,641
       8,629,642  Applied Systems, Inc., Term Loan (Second Lien), 3 Mo. LIBOR
                     + 5.50%, 0.75% Floor.........................................       9.17%       09/19/25          8,449,887
      17,475,165  BMC Software Finance, Inc. (Boxer Parent), 2021 Replacement
                     Dollar Term Loan, 1 Mo. LIBOR + 3.75%, 0.00% Floor...........       7.50%       10/02/25         16,771,790
       2,740,623  Idera, Inc., Initial Term Loan, 3 Mo. LIBOR + 3.75%, 0.75%
                     Floor........................................................       7.50%       02/15/28          2,499,448
      24,278,705  Misys Financial Software Ltd. (Almonde, Inc.) (Finastra), Term
                     Loan B, 3 Mo. LIBOR + 3.50%, 1.00% Floor.....................       6.87%       06/13/24         21,897,935
      10,395,000  Proofpoint, Inc., Term Loan (Second Lien), 3 Mo. LIBOR +
                     6.25%, 0.50% Floor...........................................       9.32%       08/31/29          9,979,200
      11,747,470  Proofpoint, Inc., Term Loan B, 3 Mo. LIBOR + 3.25%, 0.50%
                     Floor........................................................       6.32%       08/31/28         11,160,096
      13,519,596  Sophos Group PLC (Surf), Term Loan B, 3 Mo. LIBOR + 3.50%,
                     0.00% Floor..................................................       6.67%       03/05/27         13,209,051
      10,795,786  SS&C Technologies Holdings, Inc., Term Loan B-3, 1 Mo.
                     LIBOR + 1.75%, 0.00% Floor...................................       5.50%       04/16/25         10,556,011
       9,036,429  SS&C Technologies Holdings, Inc., Term Loan B-4, 1 Mo.
                     LIBOR + 1.75%, 0.00% Floor...................................       5.50%       04/16/25          8,835,730
       8,236,373  SS&C Technologies Holdings, Inc., Term Loan B-5, 1 Mo.
                     LIBOR + 1.75%, 0.00% Floor...................................       5.50%       04/16/25          8,046,772
         977,215  SUSE (Marcel Lux IV S.A.R.L.), Facility Term Loan B1 USD,
                     SOFR + 3.25%, 0.00% Floor....................................       6.37%       03/15/26            955,228
                                                                                                                 ---------------
                                                                                                                     157,241,789
                                                                                                                 ---------------



                        See Notes to Financial Statements                Page 15





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



    PRINCIPAL                                                                                         STATED
      VALUE                                  DESCRIPTION                              RATE (a)     MATURITY (b)        VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
SENIOR FLOATING-RATE LOAN INTERESTS (CONTINUED)

                  TRADING COMPANIES & DISTRIBUTORS -- 1.2%
$     36,061,365  SRS Distribution, Inc., 2021 Refinancing Term Loan, 1 Mo.
                     LIBOR + 3.50%, 0.50% Floor...................................       7.25%       06/04/28    $    33,446,917
         836,127  SRS Distribution, Inc., 2022 Refinancing Term Loan, 1 Mo.
                     SOFR + 3.60%, 0.50% Floor....................................       7.33%       06/04/28            774,989
                                                                                                                 ---------------
                                                                                                                      34,221,906
                                                                                                                 ---------------
                  WIRELESS TELECOMMUNICATION SERVICES -- 1.2%
      34,878,939  SBA Senior Finance II LLC, Term Loan B, 1 Mo. LIBOR +
                     1.75%, 0.00% Floor...........................................       5.51%       04/11/25         34,542,706
                                                                                                                 ---------------
                  TOTAL SENIOR FLOATING-RATE LOAN INTERESTS....................................................    2,472,651,038
                  (Cost $2,586,919,206)                                                                          ---------------





   PRINCIPAL                                                                           STATED         STATED
     VALUE                                  DESCRIPTION                                COUPON        MATURITY         VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
CORPORATE BONDS AND NOTES -- 9.5%

                  AEROSPACE & DEFENSE -- 0.0%
       1,082,000  TransDigm, Inc. (d).............................................       6.25%       03/15/26          1,066,933
                                                                                                                 ---------------
                  APPLICATION SOFTWARE -- 0.1%
         763,000  Go Daddy Operating Co. LLC / GD Finance Co., Inc. (d)...........       5.25%       12/01/27            715,849
       3,598,000  GoTo Group, Inc. (d)............................................       5.50%       09/01/27          2,095,907
                                                                                                                 ---------------
                                                                                                                       2,811,756
                                                                                                                 ---------------
                  BROADCASTING -- 1.3%
       2,148,000  Gray Television, Inc. (d).......................................       5.88%       07/15/26          2,029,699
      18,561,000  Nexstar Media, Inc. (d).........................................       5.63%       07/15/27         17,661,441
      21,204,000  Sirius XM Radio, Inc. (d).......................................       3.13%       09/01/26         18,993,377
                                                                                                                 ---------------
                                                                                                                      38,684,517
                                                                                                                 ---------------
                  CABLE & SATELLITE -- 3.5%
      57,771,000  CCO Holdings LLC / CCO Holdings Capital Corp. (d)...............       5.13%       05/01/27         53,608,888
      53,853,000  CSC Holdings LLC (d)............................................       7.50%       04/01/28         46,757,059
       2,882,000  Radiate Holdco LLC / Radiate Finance, Inc. (d)..................       4.50%       09/15/26          2,441,112
                                                                                                                 ---------------
                                                                                                                     102,807,059
                                                                                                                 ---------------
                  CASINOS & GAMING -- 0.3%
       4,765,000  Fertitta Entertainment LLC / Fertitta Entertainment Finance Co.,
                     Inc. (d).....................................................       4.63%       01/15/29          4,153,007
       5,330,000  VICI Properties L.P. / VICI Note Co., Inc. (d)..................       4.25%       12/01/26          4,809,448
                                                                                                                 ---------------
                                                                                                                       8,962,455
                                                                                                                 ---------------
                  HEALTH CARE FACILITIES -- 1.2%
       3,798,000  Select Medical Corp. (d)........................................       6.25%       08/15/26          3,608,499
      10,364,000  Tenet Healthcare Corp. (d)......................................       4.88%       01/01/26          9,787,865
       2,015,000  Tenet Healthcare Corp. (d)......................................       6.25%       02/01/27          1,926,703
      16,407,000  Tenet Healthcare Corp. (d)......................................       5.13%       11/01/27         15,152,357
       3,607,000  Tenet Healthcare Corp. (d)......................................       4.63%       06/15/28          3,180,556
       1,330,000  Tenet Healthcare Corp. (d)......................................       6.13%       10/01/28          1,155,936
                                                                                                                 ---------------
                                                                                                                      34,811,916
                                                                                                                 ---------------
                  HEALTH CARE SERVICES -- 0.7%
         475,000  DaVita, Inc. (d)................................................       3.75%       02/15/31            346,147
      24,212,000  Global Medical Response, Inc. (d)...............................       6.50%       10/01/25         19,303,380
                                                                                                                 ---------------
                                                                                                                      19,649,527
                                                                                                                 ---------------



Page 16                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



   PRINCIPAL                                                                           STATED         STATED
     VALUE                                  DESCRIPTION                                COUPON        MATURITY         VALUE
----------------  ----------------------------------------------------------------  -------------  ------------  ---------------
                                                                                                     
CORPORATE BONDS AND NOTES (CONTINUED)

                  INSURANCE BROKERS -- 1.1%
$      3,124,000  Alliant Holdings Intermediate LLC / Alliant Holdings
                     Co-Issuer (d)................................................       4.25%       10/15/27    $     2,819,598
       2,265,000  AmWINS Group, Inc. (d)..........................................       4.88%       06/30/29          1,943,065
       9,728,000  AssuredPartners, Inc. (d).......................................       7.00%       08/15/25          9,333,828
      16,858,000  HUB International Ltd. (d)......................................       7.00%       05/01/26         16,678,378
         465,000  USI, Inc. (d)...................................................       6.88%       05/01/25            452,019
                                                                                                                 ---------------
                                                                                                                      31,226,888
                                                                                                                 ---------------
                  INTEGRATED TELECOMMUNICATION SERVICES -- 0.1%
       2,291,000  Zayo Group Holdings, Inc. (d)...................................       4.00%       03/01/27          1,750,044
                                                                                                                 ---------------
                  PAPER PACKAGING -- 0.1%
       4,535,000  Pactiv Evergreen Group Issuer, Inc. / Pactiv Evergreen Group
                     Issuer LLC (d)...............................................       4.00%       10/15/27          4,059,279
                                                                                                                 ---------------
                  PHARMACEUTICALS -- 0.0%
         843,000  Horizon Therapeutics USA, Inc. (d)..............................       5.50%       08/01/27            813,440
                                                                                                                 ---------------
                  RESEARCH & CONSULTING SERVICES -- 0.0%
       1,000,000  Clarivate Science Holdings Corp. (d)............................       3.88%       07/01/28            860,083
                                                                                                                 ---------------
                  RESTAURANTS -- 0.1%
       3,185,000  IRB Holding Corp. (d)...........................................       7.00%       06/15/25          3,186,879
                                                                                                                 ---------------
                  SYSTEMS SOFTWARE -- 0.6%
      18,749,000  SS&C Technologies, Inc. (d).....................................       5.50%       09/30/27         17,488,425
                                                                                                                 ---------------
                  TRUCKING -- 0.4%
      12,706,000  Hertz (The) Corp. (d)...........................................       4.63%       12/01/26         10,850,797
                                                                                                                 ---------------
                  TOTAL CORPORATE BONDS AND NOTES..............................................................      279,029,998
                  (Cost $305,827,115)                                                                            ---------------

FOREIGN CORPORATE BONDS AND NOTES -- 0.8%
                  APPLICATION SOFTWARE -- 0.4%
      13,478,000  Open Text Corp. (d).............................................       3.88%       02/15/28         11,563,720
                                                                                                                 ---------------
                  DATA PROCESSING & OUTSOURCED SERVICES -- 0.3%
      10,755,000  Paysafe Finance PLC / Paysafe Holdings US Corp. (d).............       4.00%       06/15/29          7,705,474
                                                                                                                 ---------------
                  ENVIRONMENTAL & FACILITIES SERVICES -- 0.1%
       2,549,000  GFL Environmental, Inc. (d).....................................       3.75%       08/01/25          2,418,211
       1,323,000  GFL Environmental, Inc. (d).....................................       4.00%       08/01/28          1,147,927
                                                                                                                 ---------------
                                                                                                                       3,566,138
                                                                                                                 ---------------
                  RESTAURANTS -- 0.0%
         793,000  1011778 BC ULC / New Red Finance, Inc. (d)......................       4.38%       01/15/28            700,639
         517,000  1011778 BC ULC / New Red Finance, Inc. (d)......................       4.00%       10/15/30            419,597
                                                                                                                 ---------------
                                                                                                                       1,120,236
                                                                                                                 ---------------
                  TOTAL FOREIGN CORPORATE BONDS AND NOTES......................................................       23,955,568
                  (Cost $26,488,991)                                                                             ---------------





     SHARES                                                DESCRIPTION                                                VALUE
----------------  ---------------------------------------------------------------------------------------------  ---------------
                                                                                                           
COMMON STOCKS -- 0.1%

                  PHARMACEUTICALS -- 0.1%
         249,316  Akorn, Inc. (e) (f)..........................................................................        1,495,896
                  (Cost $2,858,880)                                                                              ---------------



                        See Notes to Financial Statements                Page 17





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022



     SHARES                                                DESCRIPTION                                                VALUE
----------------  ---------------------------------------------------------------------------------------------  ---------------
                                                                                                           
WARRANTS -- 0.0%
                  MOVIES & ENTERTAINMENT -- 0.0%
         972,355  Cineworld Group PLC, expiring 11/23/25 (e) (g)...............................................  $        55,755
                  (Cost $0)                                                                                      ---------------

RIGHTS -- 0.0%
                  ELECTRIC UTILITIES -- 0.0%
           4,887  Vistra Energy Corp., no expiration date (e) (g)..............................................            5,864
                                                                                                                 ---------------
                  LIFE SCIENCES TOOLS & SERVICES -- 0.0%
               1  New Millennium Holdco, Inc., Corporate Claim Trust, no expiration date (e) (g) (h) (i).......                0
               1  New Millennium Holdco, Inc., Lender Claim Trust, no expiration date (e) (g) (h) (i)..........                0
                                                                                                                 ---------------
                                                                                                                               0
                                                                                                                 ---------------
                  TOTAL RIGHTS.................................................................................            5,864
                  (Cost $8,491)                                                                                  ---------------

MONEY MARKET FUNDS -- 4.7%
     139,529,806  Morgan Stanley Institutional Liquidity Funds - Treasury Portfolio - Institutional Class -
                     2.85% (j).................................................................................      139,529,806
                  (Cost $139,529,806)                                                                            ---------------

                  TOTAL INVESTMENTS -- 99.3%...................................................................    2,916,723,925
                  (Cost $3,061,632,489)
                  NET OTHER ASSETS AND LIABILITIES -- 0.7%.....................................................       21,930,705
                                                                                                                 ---------------
                  NET ASSETS -- 100.0%.........................................................................  $ 2,938,654,630
                                                                                                                 ===============


(a)   Senior Floating-Rate Loan Interests ("Senior Loans") in which the Fund
      invests generally pay interest at rates which are periodically
      predetermined by reference to a base lending rate plus a premium. These
      base lending rates are generally (i) the lending rate offered by one or
      more major European banks, such as the LIBOR, (ii) the SOFR obtained from
      the U.S. Department of the Treasury's Office of Financial Research, (iii)
      the prime rate offered by one or more United States banks or (iv) the
      certificate of deposit rate. Certain Senior Loans are subject to a LIBOR
      or SOFR floor that establishes a minimum LIBOR or SOFR rate. When a range
      of rates is disclosed, the Fund holds more than one contract within the
      same tranche with identical LIBOR or SOFR period, spread and floor, but
      different LIBOR or SOFR reset dates.

(b)   Senior Loans generally are subject to mandatory and/or optional
      prepayment. As a result, the actual remaining maturity of Senior Loans may
      be substantially less than the stated maturities shown.

(c)   On June 16, 2022, Mallinckrodt plc completed a Bankruptcy Plan of
      Reorganization. In connection with the Plan of Reorganization, the Fund
      received a new replacement term loan.

(d)   This security, sold within the terms of a private placement memorandum, is
      exempt from registration upon resale under Rule 144A of the Securities Act
      of 1933, as amended (the "1933 Act"), and may be resold in transactions
      exempt from registration, normally to qualified institutional buyers.
      Pursuant to procedures adopted by the Trust's Board of Trustees, this
      security has been determined to be liquid by First Trust Advisors L.P.,
      (the "Advisor"). Although market instability can result in periods of
      increased overall market illiquidity, liquidity for each security is
      determined based on security specific factors and assumptions, which
      require subjective judgment. At October 31, 2022, securities noted as such
      amounted to $302,985,566 or 10.3% of net assets.

(e)   Non-income producing security.

(f)   Security received in a transaction exempt from registration under the 1933
      Act. The security may be resold pursuant to an exemption from registration
      under the 1933 Act, typically to qualified institutional buyers (see Note
      2D - Restricted Securities in the Notes to Financial Statements).

(g)   Pursuant to procedures adopted by the Trust's Board of Trustees, this
      security has been determined to be illiquid by the Advisor.

(h)   This security's value was determined using significant unobservable inputs
      (see Note 2A - Portfolio Valuation in the Notes to Financial Statements).

(i)   This security is fair valued by the Advisor's Pricing Committee in
      accordance with procedures approved by the Trust's Board of Trustees, and
      in accordance with provisions of the Investment Company Act of 1940 and
      rules thereunder, as amended. At October 31, 2022, securities noted as
      such are valued at $0 or 0.0% of net assets.

(j)   Rate shown reflects yield as of October 31, 2022.

LIBOR - London Interbank Offered Rate
SOFR  - Secured Overnight Financing Rate


Page 18                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

PORTFOLIO OF INVESTMENTS (CONTINUED)
OCTOBER 31, 2022

-----------------------------

VALUATION INPUTS

A summary of the inputs used to value the Fund's investments as of October 31,
2022 is as follows (see Note 2A - Portfolio Valuation in the Notes to Financial
Statements):



                                                                                       LEVEL 2          LEVEL 3
                                                      TOTAL           LEVEL 1        SIGNIFICANT      SIGNIFICANT
                                                     VALUE AT          QUOTED         OBSERVABLE      UNOBSERVABLE
                                                    10/31/2022         PRICES           INPUTS           INPUTS
                                                  --------------   --------------   --------------   --------------
                                                                                         
Senior Floating-Rate Loan Interests*............  $2,472,651,038   $           --   $2,472,651,038   $           --
Corporate Bonds and Notes*......................     279,029,998               --      279,029,998               --
Foreign Corporate Bonds and Notes*..............      23,955,568               --       23,955,568               --
Common Stocks*..................................       1,495,896               --        1,495,896               --
Warrants*.......................................          55,755               --           55,755               --
Rights:
   Electric Utilities...........................           5,864               --            5,864               --
   Life Sciences Tools & Services...............              --**             --               --               --**
Money Market Funds..............................     139,529,806      139,529,806               --               --
                                                  --------------   --------------   --------------   --------------
Total Investments...............................  $2,916,723,925   $  139,529,806   $2,777,194,119   $           --**
                                                  ==============   ==============   ==============   ==============


*  See Portfolio of Investments for industry breakout.
** Investment is valued at $0.

Level 3 Rights are fair valued by the Advisor's Pricing Committee and are
footnoted in the Portfolio of Investments. These values are based on
unobservable and non-quantitative inputs.


                        See Notes to Financial Statements                Page 19





FIRST TRUST SENIOR LOAN FUND (FTSL)

STATEMENT OF ASSETS AND LIABILITIES
OCTOBER 31, 2022



ASSETS:
                                                                          
Investments, at value.....................................................   $2,916,723,925
Cash......................................................................          890,462
Receivables:
   Investment securities sold.............................................       87,487,032
   Interest...............................................................       10,263,903
   Dividends..............................................................          389,233
                                                                             --------------
   Total Assets...........................................................    3,015,754,555
                                                                             --------------
LIABILITIES:
Payables:
   Investment securities purchased........................................       74,206,592
   Investment advisory fees...............................................        2,151,113
   Unrealized depreciation on unfunded loan commitments...................          742,220
                                                                             --------------
   Total Liabilities......................................................       77,099,925
                                                                             --------------
NET ASSETS................................................................   $2,938,654,630
                                                                             ==============
NET ASSETS CONSIST OF:
Paid-in capital...........................................................   $3,258,219,376
Par value.................................................................          656,500
Accumulated distributable earnings (loss).................................     (320,221,246)
                                                                             --------------
NET ASSETS................................................................   $2,938,654,630
                                                                             ==============
NET ASSET VALUE, per share................................................   $        44.76
                                                                             ==============
Number of shares outstanding (unlimited number of shares
   authorized, par value $0.01 per share).................................       65,650,002
                                                                             ==============
Investments, at cost......................................................   $3,061,632,489
                                                                             ==============



Page 20                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

STATEMENT OF OPERATIONS
FOR THE YEAR ENDED OCTOBER 31, 2022



INVESTMENT INCOME:
                                                                          
Interest..................................................................   $  166,370,398
Dividends.................................................................        1,413,865
                                                                             --------------
   Total investment income................................................      167,784,263
                                                                             --------------
EXPENSES:
Investment advisory fees..................................................       28,989,789
                                                                             --------------
   Total expenses.........................................................       28,989,789
                                                                             --------------
NET INVESTMENT INCOME (LOSS)..............................................      138,794,474
                                                                             --------------
REALIZED AND UNREALIZED GAIN (LOSS):
Net realized gain (loss) on investments...................................     (101,739,244)
                                                                             --------------
Net change in unrealized appreciation (depreciation) on:
   Investments............................................................     (140,123,726)
   Unfunded loan commitments..............................................         (735,976)
                                                                             --------------
Net change in unrealized appreciation (depreciation)......................     (140,859,702)
                                                                             --------------
NET REALIZED AND UNREALIZED GAIN (LOSS)...................................     (242,598,946)
                                                                             --------------
NET INCREASE (DECREASE) IN NET ASSETS RESULTING
   FROM OPERATIONS........................................................   $ (103,804,472)
                                                                             ==============



                        See Notes to Financial Statements                Page 21





FIRST TRUST SENIOR LOAN FUND (FTSL)

STATEMENTS OF CHANGES IN NET ASSETS



                                                                               YEAR ENDED          YEAR ENDED
                                                                               10/31/2022          10/31/2021
                                                                             --------------      --------------
                                                                                           
OPERATIONS:
Net investment income (loss)..............................................   $  138,794,474      $   64,839,416
Net realized gain (loss)..................................................     (101,739,244)          2,082,051
Net change in unrealized appreciation (depreciation)......................     (140,859,702)         48,540,282
                                                                             --------------      --------------
Net increase (decrease) in net assets resulting from operations...........     (103,804,472)        115,461,749
                                                                             --------------      --------------
DISTRIBUTIONS TO SHAREHOLDERS FROM:
Investment operations.....................................................     (139,547,604)        (64,316,388)
                                                                             --------------      --------------
SHAREHOLDER TRANSACTIONS:
Proceeds from shares sold.................................................    1,150,159,765       1,550,254,032
Cost of shares redeemed...................................................     (834,804,577)        (11,712,176)
                                                                             --------------      --------------
Net increase (decrease) in net assets resulting
   from shareholder transactions..........................................      315,355,188       1,538,541,856
                                                                             --------------      --------------
Total increase (decrease) in net assets...................................       72,003,112       1,589,687,217

NET ASSETS:
Beginning of period.......................................................    2,866,651,518       1,276,964,301
                                                                             --------------      --------------
End of period.............................................................   $2,938,654,630      $2,866,651,518
                                                                             ==============      ==============
CHANGES IN SHARES OUTSTANDING:
Shares outstanding, beginning of period...................................       60,000,002          27,850,002
Shares sold...............................................................       24,150,000          32,400,000
Shares redeemed...........................................................      (18,500,000)           (250,000)
                                                                             --------------      --------------
Shares outstanding, end of period.........................................       65,650,002          60,000,002
                                                                             ==============      ==============



Page 22                 See Notes to Financial Statements





FIRST TRUST SENIOR LOAN FUND (FTSL)

FINANCIAL HIGHLIGHTS
FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD



                                                                                   YEAR ENDED OCTOBER 31,
                                                          ------------------------------------------------------------------------
                                                              2022           2021           2020           2019           2018
                                                          ------------   ------------   ------------   ------------   ------------
                                                                                                        
Net asset value, beginning of period..................     $    47.78     $    45.85   $      47.15     $    47.75     $    48.26
                                                           ----------     ----------     ----------     ----------     ----------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)..........................           1.89           1.54           1.67           2.13           1.87
Net realized and unrealized gain (loss)...............          (3.01)          1.92          (1.27)         (0.57)         (0.43)
                                                           ----------     ----------     ----------     ----------     ----------
Total from investment operations......................          (1.12)          3.46           0.40           1.56           1.44
                                                           ----------     ----------     ----------     ----------     ----------
DISTRIBUTIONS PAID TO SHAREHOLDERS FROM:
Net investment income.................................          (1.90)         (1.53)         (1.67)         (2.15)         (1.92)
Return of capital.....................................             --             --          (0.03)         (0.01)         (0.03)
                                                           ----------     ----------     ----------     ----------     ----------
Total distributions...................................          (1.90)         (1.53)         (1.70)         (2.16)         (1.95)
                                                           ----------     ----------     ----------     ----------     ----------
Net asset value, end of period........................     $    44.76     $    47.78     $    45.85     $    47.15     $    47.75
                                                           ==========     ==========     ==========     ==========     ==========
TOTAL RETURN (a)......................................          (2.38)%         7.60%          0.90%          3.37%          3.03%

RATIOS/SUPPLEMENTAL DATA:
Net assets, end of period (in 000's)..................     $2,938,655     $2,866,652     $1,276,964     $1,603,148     $1,883,903
RATIOS TO AVERAGE NET ASSETS:
Ratio of total expenses to average net assets (b).....           0.85%          0.85%          0.85%          0.85%          0.85%
Ratio of net investment income (loss) to
   average net assets.................................           4.07%          3.27%          3.63%          4.50%          3.94%
Portfolio turnover rate (c)...........................             63%            92%            76%            44%            88%


(a)   Total return is calculated assuming an initial investment made at the net
      asset value at the beginning of the period, reinvestment of all
      distributions at net asset value during the period, and redemption at net
      asset value on the last day of the period. The returns presented do not
      reflect the deduction of taxes that a shareholder would pay on Fund
      distributions or the redemption or sale of Fund shares. Total return is
      calculated for the time period presented and is not annualized for periods
      of less than a year.

(b)   The Fund indirectly bears its proportionate share of fees and expenses
      incurred by the underlying funds in which the Fund invests. This ratio
      does not include these indirect fees and expenses.

(c)   Portfolio turnover is calculated for the time period presented and is not
      annualized for periods of less than a year and does not include securities
      received or delivered from processing creations or redemptions and in-kind
      transactions.


                        See Notes to Financial Statements                Page 23





--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

                                1. ORGANIZATION

First Trust Exchange-Traded Fund IV (the "Trust") is an open-end management
investment company organized as a Massachusetts business trust on September 15,
2010, and is registered with the Securities and Exchange Commission ("SEC")
under the Investment Company Act of 1940, as amended (the "1940 Act").

The Trust currently consists of twelve funds that are offering shares. This
report covers the First Trust Senior Loan Fund (the "Fund"), a diversified
series of the Trust, which trades under the ticker "FTSL" on The Nasdaq Stock
Market LLC ("Nasdaq"). The Fund represents a separate series of shares of
beneficial interest in the Trust. Unlike conventional mutual funds, the Fund
issues and redeems shares on a continuous basis, at net asset value ("NAV"),
only in large blocks of shares known as "Creation Units."

The Fund's primary investment objective is to provide high current income. The
Fund's secondary investment objective is the preservation of capital. Under
normal market conditions, the Fund seeks to outperform each of the
Morningstar(R) LSTA(R) US Leveraged Loan 100 Index (the "LL 100") and the Markit
iBoxx USD Liquid Leveraged Loan Index (the "MI 100") by investing at least 80%
of its net assets (including investment borrowings) in first lien senior
floating rate bank loans ("Senior Loans")(1). The LL 100 is a market
value-weighted index designed to measure the performance of the largest segment
of the U.S. syndicated leveraged loan market. The LL 100 consists of 100 loan
facilities drawn from a larger benchmark, the Morningstar(R) LSTA(R) US
Leveraged Loan Index. The MI 100 selects the 100 most liquid Senior Loans in the
market. The Fund does not seek to track either the LL 100 or MI 100, but rather
seeks to outperform each of the Indices. It is anticipated that the Fund, in
accordance with its principal investment strategy, will invest approximately 50%
to 75% of its net assets in Senior Loans that are eligible for inclusion in and
meet the liquidity thresholds of the LL 100 and/or MI 100 at the time of
investment.

A Senior Loan is an advance or commitment of funds made by one or more banks or
similar financial institutions to one or more corporations, partnerships or
other business entities and typically pays interest at a floating or adjusting
rate that is determined periodically at a designated premium above a base
lending rate, such as the London Interbank Offered Rate ("LIBOR"), the Secured
Overnight Financing Rate ("SOFR"), a similar reference rate, or the prime rate
offered by one or more major U.S. banks. The Fund invests primarily in Senior
Loans that are below investment grade quality at the time of investment. The
Fund invests in Senior Loans made predominantly to businesses operating in North
America, but may also invest in Senior Loans made to businesses operating
outside of North America.

                       2. SIGNIFICANT ACCOUNTING POLICIES

The Fund is considered an investment company and follows accounting and
reporting guidance under Financial Accounting Standards Board Accounting
Standards Codification Topic 946, "Financial Services-Investment Companies." The
following is a summary of significant accounting policies consistently followed
by the Fund in the preparation of the financial statements. The preparation of
the financial statements in accordance with accounting principles generally
accepted in the United States of America ("U.S. GAAP") requires management to
make estimates and assumptions that affect the reported amounts and disclosures
in the financial statements. Actual results could differ from those estimates.

A. PORTFOLIO VALUATION

The Fund's NAV is determined daily as of the close of regular trading on the New
York Stock Exchange ("NYSE"), normally 4:00 p.m. Eastern time, on each day the
NYSE is open for trading. If the NYSE closes early on a valuation day, the NAV
is determined as of that time. Domestic debt securities and foreign securities
are priced using data reflecting the earlier closing of the principal markets
for those securities. The Fund's NAV is calculated by dividing the value of all
assets of the Fund (including accrued interest and dividends), less all
liabilities (including accrued expenses and dividends declared but unpaid), by
the total number of shares outstanding.

The Fund's investments are valued daily at market value or, in the absence of
market value with respect to any portfolio securities, at fair value. Market
value prices represent readily available market quotations such as last sale or
official closing prices from a national or foreign exchange (i.e., a regulated
market) and are primarily obtained from third-party pricing services. Fair value
prices represent any prices not considered market value prices and are either
obtained from a third-party pricing service or are determined by the Pricing
Committee of the Fund's investment advisor, First Trust Advisors L.P. ("First
Trust" or the "Advisor"), in accordance with valuation procedures approved by
the Trust's Board of Trustees, and in accordance with provisions of the 1940 Act
and rules thereunder. Investments valued by the Advisor's Pricing Committee, if
any, are footnoted as such in the footnotes to the Portfolio of Investments. The
Fund's investments are valued as follows:

-----------------------------
(1)   The terms "security" and "securities" used throughout the Notes to
      Financial Statements include Senior Loans.


Page 24





--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

      Senior Loans in which the Fund invests are not listed on any securities
      exchange or board of trade. Senior Loans are typically bought and sold by
      institutional investors in individually negotiated private transactions
      that function in many respects like an over-the-counter secondary market,
      although typically no formal market-makers exist. This market, while
      having grown substantially since its inception, generally has fewer trades
      and less liquidity than the secondary market for other types of
      securities. Some Senior Loans have few or no trades, or trade
      infrequently, and information regarding a specific Senior Loan may not be
      widely available or may be incomplete. Accordingly, determinations of the
      market value of Senior Loans may be based on infrequent and dated
      information. Because there is less reliable, objective data available,
      elements of judgment may play a greater role in valuation of Senior Loans
      than for other types of securities. Typically, Senior Loans are valued
      using information provided by a third-party pricing service. The
      third-party pricing service primarily uses over-the-counter pricing from
      dealer runs and broker quotes from indicative sheets to value the Senior
      Loans.

      Corporate bonds, corporate notes and other debt securities are fair valued
      on the basis of valuations provided by a third-party pricing service
      approved by the Advisor's Pricing Committee, which may use the following
      valuation inputs when available:

            1)    benchmark yields;

            2)    reported trades;

            3)    broker/dealer quotes;

            4)    issuer spreads;

            5)    benchmark securities;

            6)    bids and offers; and

            7)    reference data including market research publications.

      Common stocks and other equity securities listed on any national or
      foreign exchange (excluding Nasdaq and the London Stock Exchange
      Alternative Investment Market ("AIM")) are valued at the last sale price
      on the exchange on which they are principally traded or, for Nasdaq and
      AIM securities, the official closing price. Securities traded on more than
      one securities exchange are valued at the last sale price or official
      closing price, as applicable, at the close of the securities exchange
      representing the primary exchange for such securities.

      Shares of open-end funds are valued based on NAV per share.

      Securities traded in an over-the-counter market are valued at the mean of
      their most recent bid and asked price, if available, and otherwise at
      their last trade price.

      Fixed income and other debt securities having a remaining maturity of
      sixty days or less when purchased are fair valued at cost adjusted for
      amortization of premiums and accretion of discounts (amortized cost),
      provided the Advisor's Pricing Committee has determined that the use of
      amortized cost is an appropriate reflection of fair value given market and
      issuer-specific conditions existing at the time of the determination.
      Factors that may be considered in determining the appropriateness of the
      use of amortized cost include, but are not limited to, the following:

            1)    the credit conditions in the relevant market and changes
                  thereto;

            2)    the liquidity conditions in the relevant market and changes
                  thereto;

            3)    the interest rate conditions in the relevant market and
                  changes thereto (such as significant changes in interest
                  rates);

            4)    issuer-specific conditions (such as significant credit
                  deterioration); and

            5)    any other market-based data the Advisor's Pricing Committee
                  considers relevant. In this regard, the Advisor's Pricing
                  Committee may use last-obtained market-based data to assist it
                  when valuing portfolio securities using amortized cost.

Certain securities may not be able to be priced by pre-established pricing
methods. Such securities may be valued by the Advisor's Pricing Committee at
fair value. These securities generally include, but are not limited to,
restricted securities (securities which may not be publicly sold without
registration under the Securities Act of 1933, as amended (the "1933 Act")) for
which a third-party pricing service is unable to provide a market price;
securities whose trading has been formally suspended; a security whose market or
fair value price is not available from a pre-established pricing source; a
security with respect to which an event has occurred that is likely to
materially affect the value of the security after the market has closed but
before the calculation of the Fund's NAV or make it difficult or impossible to
obtain a reliable market quotation; and a security whose price, as provided by
the third-party pricing service, does not reflect the security's fair value. As
a general principle, the current fair value of a security would appear to be the


                                                                         Page 25





--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

amount which the owner might reasonably expect to receive for the security upon
its current sale. When fair value prices are used, generally they will differ
from market quotations or official closing prices on the applicable exchanges. A
variety of factors may be considered in determining the fair value of such
securities, including, but not limited to, the following:

            1)    the most recent price provided by a pricing service;

            2)    the fundamental business data relating to the borrower/issuer;

            3)    an evaluation of the forces which influence the market in
                  which these securities are purchased and sold;

            4)    the type, size and cost of a security;

            5)    the financial statements of the borrower/issuer, or the
                  financial condition of the country of issue;

            6)    the credit quality and cash flow of the borrower/issuer, or
                  country of issue, based on the Pricing Committee's,
                  sub-adviser's or portfolio manager's analysis, as applicable,
                  or external analysis;

            7)    the information as to any transactions in or offers for the
                  security;

            8)    the price and extent of public trading in similar securities
                  of the issuer/borrower, or comparable companies;

            9)    the coupon payments;

           10)    the quality, value and salability of collateral, if any,
                  securing the security;

           11)    the business prospects of the borrower/issuer, including any
                  ability to obtain money or resources from a parent or
                  affiliate and an assessment of the borrower's/issuer's
                  management;

           12)    the prospects for the borrower's/issuer's industry, and
                  multiples (of earnings and/or cash flows) being paid for
                  similar businesses in that industry;

           13)    borrower's/issuer's competitive position within the industry;

           14)    borrower's/issuer's ability to access additional liquidity
                  through public and/or private markets; and

           15)    other relevant factors.

The Fund is subject to fair value accounting standards that define fair value,
establish the framework for measuring fair value and provide a three-level
hierarchy for fair valuation based upon the inputs to the valuation as of the
measurement date. The three levels of the fair value hierarchy are as follows:

      o     Level 1 - Level 1 inputs are quoted prices in active markets for
            identical investments. An active market is a market in which
            transactions for the investment occur with sufficient frequency and
            volume to provide pricing information on an ongoing basis.

      o     Level 2 - Level 2 inputs are observable inputs, either directly or
            indirectly, and include the following:

            o     Quoted prices for similar investments in active markets.

            o     Quoted prices for identical or similar investments in markets
                  that are non-active. A non-active market is a market where
                  there are few transactions for the investment, the prices are
                  not current, or price quotations vary substantially either
                  over time or among market makers, or in which little
                  information is released publicly.

            o     Inputs other than quoted prices that are observable for the
                  investment (for example, interest rates and yield curves
                  observable at commonly quoted intervals, volatilities,
                  prepayment speeds, loss severities, credit risks, and default
                  rates).

            o     Inputs that are derived principally from or corroborated by
                  observable market data by correlation or other means.

      o     Level 3 - Level 3 inputs are unobservable inputs. Unobservable
            inputs may reflect the reporting entity's own assumptions about the
            assumptions that market participants would use in pricing the
            investment.

The inputs or methodologies used for valuing investments are not necessarily an
indication of the risk associated with investing in those investments. A summary
of the inputs used to value the Fund's investments as of October 31, 2022, is
included with the Fund's Portfolio of Investments.

In December 2020, the SEC adopted Rule 2a-5 under the 1940 Act, establishing
requirements to determine fair value in good faith for purposes of the 1940 Act.
The rule permits fund boards to designate a fund's investment adviser to perform
fair value determinations, subject to board oversight and certain other
conditions. The rule also defines when market quotations are "readily available"
for purposes of the 1940 Act and requires a fund to fair value a portfolio
investment when a market quotation is not readily available. The SEC also
adopted new Rule 31a-4 under the 1940 Act, which sets forth recordkeeping
requirements associated with fair value determinations. The compliance date for
Rule 2a-5 and Rule 31a-4 was September 8, 2022.

Effective September 8, 2022 and pursuant to the requirements of Rule 2a-5, the
Trust's Board of Trustees designated the Advisor as its valuation designee to
perform fair value determinations and approved new Advisor Valuation Procedures
for the Trust.


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NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

B. SECURITIES TRANSACTIONS AND INVESTMENT INCOME

Securities transactions are recorded as of the trade date. Realized gains and
losses from securities transactions are recorded on the identified cost basis.
Dividend income is recorded on the ex-dividend date. Interest income is recorded
daily on the accrual basis. Amortization of premiums and accretion of discounts
are recorded using the effective interest method.

The United Kingdom's Financial Conduct Authority (the "FCA"), which regulates
the London Interbank Offered Rates ("LIBOR") announced on March 5, 2021 that it
intended to phase-out all LIBOR reference rates, beginning December 31, 2021.
Since that announcement, the FCA has ceased publication of all non-USD LIBOR
reference rates and the 1-week and 2-month USD LIBOR reference rates as of
December 31, 2021. The remaining USD LIBOR settings will cease to be published
or no longer be representative immediately after June 30, 2023. The
International Swaps and Derivatives Association, Inc. ("ISDA") confirmed that
the FCA's March 5, 2021 announcement of its intention to cease providing LIBOR
reference rates, constituted an index cessation event under the Interbank
Offered Rates ("IBOR") Fallbacks Supplement and the ISDA 2020 IBOR Fallbacks
Protocol for all 35 LIBOR settings and confirmed that the spread adjustment to
be used in ISDA fallbacks was fixed as of the date of the announcement.

In the United States, the Alternative Reference Rates Committee (the "ARRC"), a
group of market participants convened by the Board of Governors of the Federal
Reserve System and the Federal Reserve Bank of New York in cooperation with
other federal and state government agencies, has since 2014 undertaken efforts
to identify U.S. dollar reference interest rates as alternatives to LIBOR and to
facilitate the mitigation of LIBOR-related risks. In June 2017, the ARRC
identified the Secured Overnight Financing Rate ("SOFR"), a broad measure of the
cost of cash overnight borrowing collateralized by U.S. Treasury securities, as
the preferred alternative for U.S. dollar LIBOR. The Federal Reserve Bank of New
York began daily publishing of SOFR in April 2018. There is no assurance that
any alternative reference rate, including SOFR, will be similar to or produce
the same value or economic equivalence as LIBOR or that instruments using an
alternative rate will have the same volume or liquidity.

At this time, it is not possible to predict the full impact of the elimination
of LIBOR and the establishment of an alternative reference rate on the Fund or
its investments.

Securities purchased or sold on a when-issued, delayed-delivery or forward
purchase commitment basis may have extended settlement periods. The value of the
security so purchased is subject to market fluctuations during this period. Due
to the nature of the Senior Loan market, the actual settlement date may not be
certain at the time of the purchase or sale for some of the Senior Loans.
Interest income on such Senior Loans is not accrued until settlement date. The
Fund maintains liquid assets with a current value at least equal to the amount
of its when-issued, delayed delivery or forward purchase commitments. The Fund
had no when-issued, delayed-delivery, or forward purchase commitments (other
than unfunded loan commitments discussed below) as of October 31, 2022.

C. UNFUNDED LOAN COMMITMENTS

The Fund may enter into certain credit agreements, all or a portion of which may
be unfunded. The Fund is obligated to fund these loan commitments at the
borrower's discretion. Unfunded loan commitments are marked-to-market daily, and
any unrealized appreciation (depreciation) is included in the Statement of
Assets and Liabilities and Statement of Operations. In connection with these
commitments, the Fund earns a commitment fee typically set as a percentage of
the commitment amount. The commitment fees are included in "Interest" on the
Statement of Operations. As of October 31, 2022, the Fund had the following
unfunded loan commitments:



                                                                                                            UNREALIZED
                                                                  PRINCIPAL     COMMITMENT                 APPRECIATION
BORROWER                                                            VALUE         AMOUNT        VALUE     (DEPRECIATION)
-----------------------------------------------------------------------------------------------------------------------
                                                                                               
athenahealth, Inc. (Minerva Merger Sub, Inc.), Term Loan         $  6,103,559  $  6,064,024  $  5,564,431  $   (499,593)
Aveanna Healthcare LLC, Term Loan                                   1,207,092     1,201,080       964,467      (236,613)
Veritext Corp. (VT TopCo, Inc.), Term Loan                            207,517       206,787       200,773        (6,014)
                                                                               ------------  ------------  ------------
                                                                               $  7,471,891  $  6,729,671  $   (742,220)
                                                                               ============  ============  ============


D. RESTRICTED SECURITIES

The Fund invests in restricted securities, which are securities that may not be
offered for public sale without first being registered under the 1933 Act. Prior
to registration, restricted securities may only be resold in transactions exempt
from registration under Rule 144A under the 1933 Act, normally to qualified
institutional buyers. As of October 31, 2022, the Fund held restricted
securities as shown in the following table that the Advisor has deemed illiquid
pursuant to procedures adopted by the Trust's Board of Trustees.


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NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

Although market instability can result in periods of increased overall market
illiquidity, liquidity for each security is determined based on
security-specific factors and assumptions, which require subjective judgment.
The Fund does not have the right to demand that such securities be registered.
These securities are valued according to the valuation procedures as stated in
the Portfolio Valuation note (Note 2A) and are not expressed as a discount to
the carrying value of a comparable unrestricted security.



                                         ACQUISITION               CURRENT     CARRYING                   % OF NET
SECURITY                                    DATE        SHARES      PRICE        COST         VALUE        ASSETS
-------------------------------------------------------------------------------------------------------------------
                                                                                          
Akorn, Inc.                              10/15/2020     249,316    $  6.00    $2,858,880    $1,495,896      0.05%


E. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS

Dividends from net investment income, if any, are declared and paid monthly by
the Fund, or as the Board of Trustees may determine from time to time.
Distributions of net realized gains earned by the Fund, if any, are distributed
at least annually. The Fund may also designate a portion of the amount paid to
redeeming shareholders as a distribution for tax purposes.

Distributions in cash may be reinvested automatically in additional whole shares
only if the broker through whom the shares were purchased makes such option
available. Such shares will generally be reinvested by the broker based upon the
market price of those shares and investors may be subject to customary brokerage
commissions charged by the broker.

Distributions from net investment income and realized capital gains are
determined in accordance with federal income tax regulations, which may differ
from U.S. GAAP. Certain capital accounts in the financial statements are
periodically adjusted for permanent differences in order to reflect their tax
character. These permanent differences are primarily due to the varying
treatment of income and gain/loss on portfolio securities held by the Fund and
have no impact on net assets or NAV per share. Temporary differences, which
arise from recognizing certain items of income, expense and gain/loss in
different periods for financial statement and tax purposes, will reverse at some
time in the future.

The tax character of distributions paid during the fiscal years ended October
31, 2022 and 2021 was as follows:

Distributions paid from:                               2022           2021
Ordinary income.................................  $ 139,547,604  $  64,316,388
Capital gains...................................             --             --
Return of capital...............................             --             --

As of October 31, 2022, the components of distributable earnings on a tax basis
for the Fund were as follows:

Undistributed ordinary income...................  $   1,035,608
Accumulated capital and other gain (loss).......   (173,963,056)
Net unrealized appreciation (depreciation)......   (147,293,798)

F. INCOME TAXES

The Fund intends to continue to qualify as a regulated investment company by
complying with the requirements under Subchapter M of the Internal Revenue Code
of 1986, as amended, which includes distributing substantially all of its net
investment income and net realized gains to shareholders. Accordingly, no
provision has been made for federal and state income taxes. However, due to the
timing and amount of distributions, the Fund may be subject to an excise tax of
4% of the amount by which approximately 98% of the Fund's taxable income exceeds
the distributions from such taxable income for the calendar year.

The Fund is subject to accounting standards that establish a minimum threshold
for recognizing, and a system for measuring, the benefits of a tax position
taken or expected to be taken in a tax return. The taxable years ended 2019,
2020, 2021, and 2022 remain open to federal and state audit. As of October 31,
2022, management has evaluated the application of these standards to the Fund
and has determined that no provision for income tax is required in the Fund's
financial statements for uncertain tax positions.

The Fund intends to utilize provisions of the federal income tax laws, which
allow it to carry a realized capital loss forward indefinitely following the
year of the loss and offset such loss against any future realized capital gains.
The Fund is subject to certain limitations under U.S. tax rules on the use of
capital loss carryforwards and net unrealized built-in losses. These limitations
apply when there has been a 50% change in ownership. As of October 31, 2022, the
Fund had non-expiring capital loss carryforwards available for federal income
tax purposes of $173,963,056.


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--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

Certain losses realized during the current fiscal year may be deferred and
treated as occurring on the first day of the following fiscal year for federal
income tax purposes. For the fiscal year ended October 31, 2022, the Fund had no
net late year ordinary or capital losses.

In order to present paid-in capital and accumulated distributable earnings
(loss) (which consists of accumulated net investment income (loss), accumulated
net realized gain (loss) on investments and net unrealized appreciation
(depreciation) on investments) on the Statement of Assets and Liabilities that
more closely represent their tax character, certain adjustments have been made
to paid-in capital, accumulated net investment income (loss) and accumulated net
realized gain (loss) on investments. These adjustments are primarily due to the
difference between book and tax treatments of income and gains on various
investment securities held by the Fund. The results of operations and net assets
were not affected by these adjustments. For the fiscal year ended October 31,
2022, the adjustments for the Fund were as follows:

                                Accumulated
              Accumulated      Net Realized
            Net Investment      Gain (Loss)
             Income (Loss)    on Investments     Paid-in Capital
           --------------     --------------     ---------------
           $      316,352     $     (324,604)    $         8,252

As of October 31, 2022, the aggregate cost, gross unrealized appreciation, gross
unrealized depreciation, and net unrealized appreciation/(depreciation) on
investments (including short positions and derivatives, if any) for federal
income tax purposes were as follows:



                                                Gross              Gross          Net Unrealized
                                             Unrealized          Unrealized        Appreciation
                          Tax Cost          Appreciation       (Depreciation)     (Depreciation)
                       ---------------     ---------------     --------------     ---------------
                                                                      
                       $ 3,063,275,503     $       875,898     $ (147,427,476)    $  (146,551,578)


G. EXPENSES

Expenses, other than the investment advisory fee and other excluded expenses,
are paid by the Advisor (see Note 3).

3. INVESTMENT ADVISORY FEE, AFFILIATED TRANSACTIONS AND OTHER FEE ARRANGEMENTS

First Trust, the investment advisor to the Fund, is a limited partnership with
one limited partner, Grace Partners of DuPage L.P., and one general partner, The
Charger Corporation. The Charger Corporation is an Illinois corporation
controlled by James A. Bowen, Chief Executive Officer of First Trust. First
Trust is responsible for the selection and ongoing monitoring of the securities
in the Fund's portfolio, managing the Fund's business affairs and providing
certain administrative services necessary for the management of the Fund.

Pursuant to the Investment Management Agreement between the Trust and the
Advisor, First Trust manages the investment of the Fund's assets and is
responsible for the Fund's expenses, including the cost of transfer agency,
custody, fund administration, legal, audit and other services, but excluding fee
payments under the Investment Management Agreement, interest, taxes, pro rata
share of fees and expenses attributable to investments in other investment
companies ("acquired fund fees and expenses"), brokerage commissions and other
expenses connected with the execution of portfolio transactions, distribution
and service fees payable pursuant to a Rule 12b-1 plan, if any, and
extraordinary expenses. The Fund has agreed to pay First Trust an annual unitary
management fee equal to 0.85% of its average daily net assets. In addition, the
Fund incurs acquired fund fees and expenses. The total of the unitary management
fee and acquired fund fees and expenses represents the Fund's total annual
operating expenses.

The Trust has multiple service agreements with The Bank of New York Mellon
("BNYM"). Under the service agreements, BNYM performs custodial, fund
accounting, certain administrative services, and transfer agency services for
the Fund. As custodian, BNYM is responsible for custody of the Fund's assets. As
fund accountant and administrator, BNYM is responsible for maintaining the books
and records of the Fund's securities and cash. As transfer agent, BNYM is
responsible for maintaining shareholder records for the Fund. BNYM is a
subsidiary of The Bank of New York Mellon Corporation, a financial holding
company.

Each Trustee who is not an officer or employee of First Trust, any sub-advisor
or any of their affiliates ("Independent Trustees") is paid a fixed annual
retainer that is allocated equally among each fund in the First Trust Fund
Complex. Each Independent Trustee is also paid an annual per fund fee that
varies based on whether the fund is a closed-end or other actively managed fund,
target outcome fund or an index fund.


                                                                         Page 29





--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

Additionally, the Lead Independent Trustee and the Chairs of the Audit
Committee, Nominating and Governance Committee and the Valuation Committee are
paid annual fees to serve in such capacities, with such compensation allocated
pro rata among each fund in the First Trust Fund Complex based on net assets.
Independent Trustees are reimbursed for travel and out-of-pocket expenses in
connection with all meetings. The Lead Independent Trustee and Committee Chairs
rotate every three years. The officers and "Interested" Trustee receive no
compensation from the Trust for acting in such capacities.

                      4. PURCHASES AND SALES OF SECURITIES

For the fiscal year ended October 31, 2022, the cost of purchases and proceeds
from sales of investments, excluding short-term investments and in-kind
transactions, were $2,307,437,824 and $2,033,550,086, respectively.

For the fiscal year ended October 31, 2022, there were no in-kind transactions.

                                 5. BORROWINGS

The Trust, on behalf of the Fund, along with First Trust Exchange-Traded Fund
III and First Trust Series Fund have a $305 million Credit Agreement with The
Bank of Nova Scotia ("Scotia") as administrative agent for a group of lenders.
Between March 2, 2022 and October 30, 2022, the commitment amount was $280
million, and prior to March 2, 2022, the commitment amount was $355 million.
Scotia charges a commitment fee of 0.25% of the daily amount of the excess of
the commitment amount over the outstanding principal balance of the loans and an
agency fee. First Trust allocates the commitment fee and agency fee amongst the
funds that have access to the credit line. To the extent that the Fund accesses
the credit line, there would also be an interest fee charged. The Fund did not
have any borrowings outstanding during the fiscal year ended October 31, 2022.

                 6. CREATIONS, REDEMPTIONS AND TRANSACTION FEES

The Fund generally issues and redeems its shares in primary market transactions
through a creation and redemption mechanism and does not sell or redeem
individual shares. Instead, financial entities known as "Authorized
Participants" have contractual arrangements with the Fund or one of the Fund's
service providers to purchase and redeem Fund shares directly with the Fund in
large blocks of shares known as "Creation Units." Prior to the start of trading
on every business day, the Fund publishes through the National Securities
Clearing Corporation ("NSCC") the "basket" of securities, cash or other assets
that it will accept in exchange for a Creation Unit of the Fund's shares. An
Authorized Participant that wishes to effectuate a creation of the Fund's shares
deposits with the Fund the "basket" of securities, cash or other assets
identified by the Fund that day, and then receives the Creation Unit of the
Fund's shares in return for those assets. After purchasing a Creation Unit, the
Authorized Participant may continue to hold the Fund's shares or sell them in
the secondary market. The redemption process is the reverse of the purchase
process: the Authorized Participant redeems a Creation Unit of the Fund's shares
for a basket of securities, cash or other assets. The combination of the
creation and redemption process with secondary market trading in the Fund's
shares and underlying securities provides arbitrage opportunities that are
designed to help keep the market price of the Fund's shares at or close to the
NAV per share of the Fund.

The Fund imposes fees in connection with the purchase of Creation Units. These
fees may vary based upon various fact-based circumstances, including, but not
limited to, the composition of the securities included in the Creation Unit or
the countries in which the transactions are settled. The price for each Creation
Unit will equal the daily NAV per share of the Fund times the number of shares
in a Creation Unit, plus the fees described above and, if applicable, any
operational processing and brokerage costs, transfer fees, stamp taxes and part
or all of the spread between the expected bid and offer side of the market
related to the securities comprising the creation basket.

The Fund also imposes fees in connection with the redemption of Creation Units.
These fees may vary based upon various fact-based circumstances, including, but
not limited to, the composition of the securities included in the Creation Unit
or the countries in which the transactions are settled. The price received for
each Creation Unit will equal the daily NAV per share of the Fund times the
number of shares in a Creation Unit, minus the fees described above and, if
applicable, any operational processing and brokerage costs, transfer fees, stamp
taxes and part or all of the spread between the expected bid and offer side of
the market related to the securities comprising the redemption basket. Investors
who use the services of a broker or other such intermediary in addition to an
Authorized Participant to effect a redemption of a Creation Unit may also be
assessed an amount to cover the cost of such services. The redemption fee
charged by the Fund will comply with Rule 22c-2 of the 1940 Act which limits
redemption fees to no more than 2% of the value of the shares redeemed.


Page 30





--------------------------------------------------------------------------------
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                                OCTOBER 31, 2022

                              7. DISTRIBUTION PLAN

The Board of Trustees adopted a Distribution and Service Plan pursuant to Rule
12b-1 under the 1940 Act. In accordance with the Rule 12b-1 plan, the Fund is
authorized to pay an amount up to 0.25% of its average daily net assets each
year to reimburse First Trust Portfolios L.P. ("FTP"), the distributor of the
Fund, for amounts expended to finance activities primarily intended to result in
the sale of Creation Units or the provision of investor services. FTP may also
use this amount to compensate securities dealers or other persons that are
Authorized Participants for providing distribution assistance, including
broker-dealer and shareholder support and educational and promotional services.

No 12b-1 fees are currently paid by the Fund, and pursuant to a contractual
arrangement, no 12b-1 fees will be paid any time before March 31, 2024.

                               8. INDEMNIFICATION

The Trust, on behalf of the Fund, has a variety of indemnification obligations
under contracts with its service providers. The Trust's maximum exposure under
these arrangements is unknown. However, the Trust has not had prior claims or
losses pursuant to these contracts and expects the risk of loss to be remote.

                              9. SUBSEQUENT EVENTS

Management has evaluated the impact of all subsequent events on the Fund through
the date the financial statements were issued, and has determined that there was
the following subsequent event:

At a meeting on October 24, 2022, the Board of Trustees approved a breakpoint
pricing arrangement for each of the series of the Trust, including the Fund.
Pursuant to this arrangement, which is effective as of November 1, 2022, the
management fee the Fund pays to First Trust, as investment manager, will be
discounted as the Fund's net assets reach certain predefined levels.


                                                                         Page 31





--------------------------------------------------------------------------------
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
--------------------------------------------------------------------------------

TO THE SHAREHOLDERS AND THE BOARD OF TRUSTEES OF FIRST TRUST EXCHANGE-TRADED
FUND IV:

OPINION ON THE FINANCIAL STATEMENTS AND FINANCIAL HIGHLIGHTS

We have audited the accompanying statement of assets and liabilities of First
Trust Senior Loan Fund (the "Fund"), a series of the First Trust Exchange-Traded
Fund IV, including the portfolio of investments, as of October 31, 2022, the
related statement of operations for the year then ended, the statements of
changes in net assets for each of the two years in the period then ended, the
financial highlights for each of the five years in the period then ended, and
the related notes. In our opinion, the financial statements and financial
highlights present fairly, in all material respects, the financial position of
the Fund as of October 31, 2022, and the results of its operations for the year
then ended, the changes in its net assets for each of the two years in the
period then ended, and the financial highlights for each of the five years in
the period then ended in conformity with accounting principles generally
accepted in the United States of America.

BASIS FOR OPINION

These financial statements and financial highlights are the responsibility of
the Fund's management. Our responsibility is to express an opinion on the Fund's
financial statements and financial highlights based on our audits. We are a
public accounting firm registered with the Public Company Accounting Oversight
Board (United States) (PCAOB) and are required to be independent with respect to
the Fund in accordance with the U.S. federal securities laws and the applicable
rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those
standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements and financial highlights are
free of material misstatement, whether due to error or fraud. The Fund is not
required to have, nor were we engaged to perform, an audit of its internal
control over financial reporting. As part of our audits, we are required to
obtain an understanding of internal control over financial reporting but not for
the purpose of expressing an opinion on the effectiveness of the Fund's internal
control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material
misstatement of the financial statements and financial highlights, whether due
to error or fraud, and performing procedures that respond to those risks. Such
procedures included examining, on a test basis, evidence regarding the amounts
and disclosures in the financial statements and financial highlights. Our audits
also included evaluating the accounting principles used and significant
estimates made by management, as well as evaluating the overall presentation of
the financial statements and financial highlights. Our procedures included
confirmation of securities owned as of October 31, 2022, by correspondence with
the custodian, agent banks and brokers; when replies were not received from
agent banks and brokers, we performed other auditing procedures. We believe that
our audits provide a reasonable basis for our opinion.

/s/ Deloitte & Touche LLP

Chicago, Illinois
December 22, 2022


We have served as the auditor of one or more First Trust investment companies
since 2001.


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--------------------------------------------------------------------------------
ADDITIONAL INFORMATION
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

                      PROXY VOTING POLICIES AND PROCEDURES

A description of the policies and procedures that the Trust uses to determine
how to vote proxies and information on how the Fund voted proxies relating to
its portfolio securities during the most recent 12-month period ended June 30 is
available (1) without charge, upon request, by calling (800) 988-5891; (2) on
the Fund's website at www.ftportfolios.com; and (3) on the Securities and
Exchange Commission's ("SEC") website at www.sec.gov.

                               PORTFOLIO HOLDINGS

The Fund files portfolio holdings information for each month in a fiscal quarter
within 60 days after the end of the relevant fiscal quarter on Form N-PORT.
Portfolio holdings information for the third month of each fiscal quarter will
be publicly available on the SEC's website at www.sec.gov. The Fund's complete
schedule of portfolio holdings for the second and fourth quarters of each fiscal
year is included in the semi-annual and annual reports to shareholders,
respectively, and is filed with the SEC on Form N-CSR. The semi-annual and
annual report for the Fund is available to investors within 60 days after the
period to which it relates. The Fund's Forms N-PORT and Forms N-CSR are
available on the SEC's website listed above.

                            FEDERAL TAX INFORMATION

Distributions paid to foreign shareholders during the Fund's fiscal year ended
October 31, 2022 that were properly designated by the Fund as "interest-related
dividends" or "short-term capital gain dividends," may not be subject to federal
income tax provided that the income was earned directly by such foreign
shareholders.

Of the ordinary income (including short-term capital gain) distributions made by
the Fund during the fiscal year ended October 31, 2022, none qualify for the
corporate dividends received deduction available to corporate shareholders or as
qualified dividend income.

                              RISK CONSIDERATIONS

RISKS ARE INHERENT IN ALL INVESTING. CERTAIN GENERAL RISKS THAT MAY BE
APPLICABLE TO A FUND ARE IDENTIFIED BELOW, BUT NOT ALL OF THE MATERIAL RISKS
RELEVANT TO EACH FUND ARE INCLUDED IN THIS REPORT AND NOT ALL OF THE RISKS BELOW
APPLY TO EACH FUND. THE MATERIAL RISKS OF INVESTING IN EACH FUND ARE SPELLED OUT
IN ITS PROSPECTUS, STATEMENT OF ADDITIONAL INFORMATION AND OTHER REGULATORY
FILINGS. BEFORE INVESTING, YOU SHOULD CONSIDER EACH FUND'S INVESTMENT OBJECTIVE,
RISKS, CHARGES AND EXPENSES, AND READ EACH FUND'S PROSPECTUS AND STATEMENT OF
ADDITIONAL INFORMATION CAREFULLY. YOU CAN DOWNLOAD EACH FUND'S PROSPECTUS AT
WWW.FTPORTFOLIOS.COM OR CONTACT FIRST TRUST PORTFOLIOS L.P. AT (800) 621-1675 TO
REQUEST A PROSPECTUS, WHICH CONTAINS THIS AND OTHER INFORMATION ABOUT EACH FUND.

CONCENTRATION RISK. To the extent that a fund is able to invest a significant
percentage of its assets in a single asset class or the securities of issuers
within the same country, state, region, industry or sector, an adverse economic,
business or political development may affect the value of the fund's investments
more than if the fund were more broadly diversified. A fund that tracks an index
will be concentrated to the extent the fund's corresponding index is
concentrated. A concentration makes a fund more susceptible to any single
occurrence and may subject the fund to greater market risk than a fund that is
more broadly diversified.

CREDIT RISK. Credit risk is the risk that an issuer of a security will be unable
or unwilling to make dividend, interest and/or principal payments when due and
the related risk that the value of a security may decline because of concerns
about the issuer's ability to make such payments.

CYBER SECURITY RISK. The funds are susceptible to potential operational risks
through breaches in cyber security. A breach in cyber security refers to both
intentional and unintentional events that may cause a fund to lose proprietary
information, suffer data corruption or lose operational capacity. Such events
could cause a fund to incur regulatory penalties, reputational damage,
additional compliance costs associated with corrective measures and/or financial
loss. In addition, cyber security breaches of a fund's third-party service
providers, such as its administrator, transfer agent, custodian, or sub-advisor,
as applicable, or issuers in which the fund invests, can also subject a fund to
many of the same risks associated with direct cyber security breaches.

DEFINED OUTCOME FUNDS RISK. To the extent a fund's investment strategy is
designed to deliver returns tied to the price performance of an underlying ETF,
an investor may not realize the returns the fund seeks to achieve if that
investor does not hold shares for the entire target outcome period. In the event
an investor purchases shares after the first day of the target outcome period or
sells shares prior to the end of the target outcome period, the buffer that the
fund seeks to provide against a decline in the value of the underlying ETF may
not be available, the enhanced returns that the fund seeks to provide (if any)
may not be available and the investor may not participate in a gain in the value
of the underlying ETF up to the cap for the investor's investment period.
Additionally, the fund will not participate in gains of the underlying ETF above


                                                                         Page 33





--------------------------------------------------------------------------------
ADDITIONAL INFORMATION (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

the cap and a shareholder may lose their entire investment. If the fund seeks
enhanced returns, there are certain time periods when the value of the fund may
fall faster than the value of the underlying ETF, and it is very unlikely that,
on any given day during which the underlying ETF share price increases in value,
the fund's share price will increase at the same rate as the enhanced returns
sought by the fund, which is designed for an entire target outcome period.
Trading flexible exchange options involves risks different from, or possibly
greater than, the risks associated with investing directly in securities, such
as less liquidity and correlation and valuation risks. A fund may experience
substantial downside from specific flexible exchange option positions and
certain positions may expire worthless.

DERIVATIVES RISK. To the extent a fund uses derivative instruments such as
futures contracts, options contracts and swaps, the fund may experience losses
because of adverse movements in the price or value of the underlying asset,
index or rate, which may be magnified by certain features of the derivative.
These risks are heightened when a fund's portfolio managers use derivatives to
enhance the fund's return or as a substitute for a position or security, rather
than solely to hedge (or offset) the risk of a position or security held by the
fund.

EQUITY SECURITIES RISK. To the extent a fund invests in equity securities, the
value of the fund's shares will fluctuate with changes in the value of the
equity securities. Equity securities prices fluctuate for several reasons,
including changes in investors' perceptions of the financial condition of an
issuer or the general condition of the relevant stock market, such as market
volatility, or when political or economic events affecting the issuers occur. In
addition, common stock prices may be particularly sensitive to rising interest
rates, as the cost of capital rises and borrowing costs increase. Equity
securities may decline significantly in price over short or extended periods of
time, and such declines may occur in the equity market as a whole, or they may
occur in only a particular country, company, industry or sector of the market.

ETF RISK. The shares of an ETF trade like common stock and represent an interest
in a portfolio of securities. The risks of owning an ETF generally reflect the
risks of owning the underlying securities, although lack of liquidity in an ETF
could result in it being more volatile and ETFs have management fees that
increase their costs. Shares of an ETF trade on an exchange at market prices
rather than net asset value, which may cause the shares to trade at a price
greater than net asset value (premium) or less than net asset value (discount).
In times of market stress, decisions by market makers to reduce or step away
from their role of providing a market for an ETF's shares, or decisions by an
ETF's authorized participants that they are unable or unwilling to proceed with
creation and/or redemption orders of an ETF's shares, could result in shares of
the ETF trading at a discount to net asset value and in greater than normal
intraday bid-ask spreads.

FIXED INCOME SECURITIES RISK. To the extent a fund invests in fixed income
securities, the fund will be subject to credit risk, income risk, interest rate
risk, liquidity risk and prepayment risk. Income risk is the risk that income
from a fund's fixed income investments could decline during periods of falling
interest rates. Interest rate risk is the risk that the value of a fund's fixed
income securities will decline because of rising interest rates. Liquidity risk
is the risk that a security cannot be purchased or sold at the time desired, or
cannot be purchased or sold without adversely affecting the price. Prepayment
risk is the risk that the securities will be redeemed or prepaid by the issuer,
resulting in lower interest payments received by the fund. In addition to these
risks, high yield securities, or "junk" bonds, are subject to greater market
fluctuations and risk of loss than securities with higher ratings, and the
market for high yield securities is generally smaller and less liquid than that
for investment grade securities.

INDEX OR MODEL CONSTITUENT RISK. Certain funds may be a constituent of one or
more indices or ETF models. As a result, such a fund may be included in one or
more index-tracking exchange-traded funds or mutual funds. Being a component
security of such a vehicle could greatly affect the trading activity involving a
fund, the size of the fund and the market volatility of the fund. Inclusion in
an index could increase demand for the fund and removal from an index could
result in outsized selling activity in a relatively short period of time. As a
result, a fund's net asset value could be negatively impacted and the fund's
market price may be significantly below its net asset value during certain
periods. In addition, index rebalances may potentially result in increased
trading activity in a fund's shares.

INDEX PROVIDER RISK. To the extent a fund seeks to track an index, it is subject
to Index Provider Risk. There is no assurance that the Index Provider will
compile the Index accurately, or that the Index will be determined, maintained,
constructed, reconstituted, rebalanced, composed, calculated or disseminated
accurately. To correct any such error, the Index Provider may carry out an
unscheduled rebalance or other modification of the Index constituents or
weightings, which may increase the fund's costs. The Index Provider does not
provide any representation or warranty in relation to the quality, accuracy or
completeness of data in the Index, and it does not guarantee that the Index will
be calculated in accordance with its stated methodology. Losses or costs
associated with any Index Provider errors generally will be borne by the fund
and its shareholders.


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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

INVESTMENT COMPANIES RISK. To the extent a fund invests in the securities of
other investment vehicles, the fund will incur additional fees and expenses that
would not be present in a direct investment in those investment vehicles.
Furthermore, the fund's investment performance and risks are directly related to
the investment performance and risks of the investment vehicles in which the
fund invests.

LIBOR RISK. To the extent a fund invests in floating or variable rate
obligations that use the London Interbank Offered Rate ("LIBOR") as a reference
interest rate, it is subject to LIBOR Risk. The United Kingdom's Financial
Conduct Authority, which regulates LIBOR has ceased making LIBOR available as a
reference rate over a phase-out period that began December 31, 2021. There is no
assurance that any alternative reference rate, including the Secured Overnight
Financing Rate ("SOFR") will be similar to or produce the same value or economic
equivalence as LIBOR or that instruments using an alternative rate will have the
same volume or liquidity. The unavailability or replacement of LIBOR may affect
the value, liquidity or return on certain fund investments and may result in
costs incurred in connection with closing out positions and entering into new
trades. Any potential effects of the transition away from LIBOR on the fund or
on certain instruments in which the fund invests can be difficult to ascertain,
and they may vary depending on a variety of factors, and they could result in
losses to the fund.

MANAGEMENT RISK. To the extent that a fund is actively managed, it is subject to
management risk. In managing an actively-managed fund's investment portfolio,
the fund's portfolio managers will apply investment techniques and risk analyses
that may not have the desired result. There can be no guarantee that a fund will
meet its investment objective.

MARKET RISK. Market risk is the risk that a particular security, or shares of a
fund in general, may fall in value. Securities held by a fund, as well as shares
of a fund itself, are subject to market fluctuations caused by factors such as
general economic conditions, political events, regulatory or market
developments, changes in interest rates and perceived trends in securities
prices. Shares of a fund could decline in value or underperform other
investments as a result of the risk of loss associated with these market
fluctuations. In addition, local, regional or global events such as war, acts of
terrorism, spread of infectious diseases or other public health issues,
recessions, or other events could have a significant negative impact on a fund
and its investments. Such events may affect certain geographic regions,
countries, sectors and industries more significantly than others. In February
2022, Russia invaded Ukraine which has caused and could continue to cause
significant market disruptions and volatility within the markets in Russia,
Europe, and the United States. The hostilities and sanctions resulting from
those hostilities could have a significant impact on certain fund investments as
well as fund performance. The COVID-19 global pandemic and the ensuing policies
enacted by governments and central banks have caused and may continue to cause
significant volatility and uncertainty in global financial markets. While the
U.S. has resumed "reasonably" normal business activity, many countries continue
to impose lockdown measures. Additionally, there is no guarantee that vaccines
will be effective against emerging variants of the disease. These events also
adversely affect the prices and liquidity of a fund's portfolio securities or
other instruments and could result in disruptions in the trading markets. Any of
such circumstances could have a materially negative impact on the value of a
fund's shares and result in increased market volatility. During any such events,
a fund's shares may trade at increased premiums or discounts to their net asset
value and the bid/ask spread on a fund's shares may widen.

NON-U.S. SECURITIES RISK. To the extent a fund invests in non-U.S. securities,
it is subject to additional risks not associated with securities of domestic
issuers. Non-U.S. securities are subject to higher volatility than securities of
domestic issuers due to: possible adverse political, social or economic
developments; restrictions on foreign investment or exchange of securities;
capital controls; lack of liquidity; currency exchange rates; excessive
taxation; government seizure of assets; the imposition of sanctions by foreign
governments; different legal or accounting standards; and less government
supervision and regulation of exchanges in foreign countries. Investments in
non-U.S. securities may involve higher costs than investments in U.S.
securities, including higher transaction and custody costs, as well as
additional taxes imposed by non-U.S. governments. These risks may be heightened
for securities of companies located, or with significant operations, in emerging
market countries.

OPERATIONAL RISK. Each fund is subject to risks arising from various operational
factors, including, but not limited to, human error, processing and
communication errors, errors of a fund's service providers, counterparties or
other third-parties, failed or inadequate processes and technology or systems
failures. Each fund relies on third-parties for a range of services, including
custody. Any delay or failure relating to engaging or maintaining such service
providers may affect a fund's ability to meet its investment objective. Although
the funds and the funds' investment advisor seek to reduce these operational
risks through controls and procedures, there is no way to completely protect
against such risks.

PASSIVE INVESTMENT RISK. To the extent a fund seeks to track an index, the fund
will invest in the securities included in, or representative of, the index
regardless of their investment merit. A fund generally will not attempt to take
defensive positions in declining markets.


                                                                         Page 35





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ADDITIONAL INFORMATION (CONTINUED)
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

PREFERRED SECURITIES RISK. Preferred securities combine some of the
characteristics of both common stocks and bonds. Preferred securities are
typically subordinated to bonds and other debt securities in a company's capital
structure in terms of priority to corporate income, subjecting them to greater
credit risk than those debt securities. Generally, holders of preferred
securities have no voting rights with respect to the issuing company unless
preferred dividends have been in arrears for a specified number of periods, at
which time the preferred security holders may obtain limited rights. In certain
circumstances, an issuer of preferred securities may defer payment on the
securities and, in some cases, redeem the securities prior to a specified date.
Preferred securities may also be substantially less liquid than other
securities, including common stock.

VALUATION RISK. The valuation of certain securities may carry more risk than
that of common stock. Uncertainties in the conditions of the financial markets,
unreliable reference data, lack of transparency and inconsistency of valuation
models and processes may lead to inaccurate asset pricing. A fund may hold
investments in sizes smaller than institutionally sized round lot positions
(sometimes referred to as odd lots). However, third-party pricing services
generally provide evaluations on the basis of institutionally-sized round lots.
If a fund sells certain of its investments in an odd lot transaction, the sale
price may be less than the value at which such securities have been held by the
fund. Odd lots often trade at lower prices than institutional round lots. There
is no assurance that the fund will be able to sell a portfolio security at the
price established by the pricing service, which could result in a loss to the
fund.

              NOT FDIC INSURED   NOT BANK GUARANTEED   MAY LOSE VALUE

                               ADVISORY AGREEMENT

BOARD CONSIDERATIONS REGARDING APPROVAL OF CONTINUATION OF INVESTMENT MANAGEMENT
AGREEMENT

The Board of Trustees of First Trust Exchange-Traded Fund IV (the "Trust"),
including the Independent Trustees, unanimously approved the continuation of the
Investment Management Agreement (the "Agreement") with First Trust Advisors L.P.
(the "Advisor") on behalf of the First Trust Senior Loan Fund (the "Fund"). The
Board approved the continuation of the Agreement for a one-year period ending
June 30, 2023 at a meeting held on June 12-13, 2022. The Board determined that
the continuation of the Agreement is in the best interests of the Fund in light
of the nature, extent and quality of the services provided and such other
matters as the Board considered to be relevant in the exercise of its business
judgment.

To reach this determination, the Board considered its duties under the
Investment Company Act of 1940, as amended (the "1940 Act"), as well as under
the general principles of state law, in reviewing and approving advisory
contracts; the requirements of the 1940 Act in such matters; the fiduciary duty
of investment advisors with respect to advisory agreements and compensation; the
standards used by courts in determining whether investment company boards have
fulfilled their duties; and the factors to be considered by the Board in voting
on such agreements. At meetings held on April 18, 2022 and June 12-13, 2022, the
Board, including the Independent Trustees, reviewed materials provided by the
Advisor responding to requests for information from counsel to the Independent
Trustees, submitted on behalf of the Independent Trustees, that, among other
things, outlined: the services provided by the Advisor to the Fund (including
the relevant personnel responsible for these services and their experience); the
unitary fee rate payable by the Fund as compared to fees charged to a peer group
of funds (the "Expense Group") and a broad peer universe of funds (the "Expense
Universe"), each assembled by Broadridge Financial Solutions, Inc.
("Broadridge"), an independent source, and as compared to fees charged to other
clients of the Advisor, including other exchange-traded funds ("ETFs") managed
by the Advisor; the expense ratio of the Fund as compared to expense ratios of
the funds in the Fund's Expense Group and Expense Universe; performance
information for the Fund, including comparisons of the Fund's performance to
that of one or more relevant benchmark indexes and to that of a performance
group of funds and a broad performance universe of funds (the "Performance
Universe"), each assembled by Broadridge; the nature of expenses incurred in
providing services to the Fund and the potential for the Advisor to realize
economies of scale, if any; profitability and other financial data for the
Advisor; any indirect benefits to the Advisor and its affiliate, First Trust
Portfolios L.P. ("FTP"); and information on the Advisor's compliance program.
The Board reviewed initial materials with the Advisor at the meeting held on
April 18, 2022, prior to which the Independent Trustees and their counsel met
separately to discuss the information provided by the Advisor. Following the
April meeting, counsel to the Independent Trustees, on behalf of the Independent
Trustees, requested certain clarifications and supplements to the materials
provided, and the information provided in response to those requests was
considered at an executive session of the Independent Trustees and their counsel
held prior to the June 12-13, 2022 meeting, as well as at the June meeting. The
Board applied its business judgment to determine whether the arrangement between
the Trust and the Advisor continues to be a reasonable business arrangement from
the Fund's perspective. The Board determined that, given the totality of the
information provided with respect to the Agreement, the Board had received
sufficient information to renew the Agreement. The Board considered that
shareholders chose to invest or remain invested in the Fund knowing that the
Advisor manages the Fund and knowing the Fund's unitary fee.


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ADDITIONAL INFORMATION (CONTINUED)
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

In reviewing the Agreement, the Board considered the nature, extent and quality
of the services provided by the Advisor under the Agreement. The Board
considered that the Advisor is responsible for the overall management and
administration of the Trust and the Fund and reviewed all of the services
provided by the Advisor to the Fund, as well as the background and experience of
the persons responsible for such services. The Board noted that the Fund is an
actively-managed ETF and noted that the Advisor's Leveraged Finance Investment
Team is responsible for the day-to-day management of the Fund's investments. The
Board considered the background and experience of the members of the Leveraged
Finance Investment Team and noted the Board's prior meetings with members of the
Team. The Board considered the Advisor's statement that it applies the same
oversight model internally with its Leveraged Finance Investment Team as it uses
for overseeing external sub-advisors, including portfolio risk monitoring and
performance review. In reviewing the services provided, the Board noted the
compliance program that had been developed by the Advisor and considered that it
includes a robust program for monitoring the Advisor's and the Fund's compliance
with the 1940 Act, as well as the Fund's compliance with its investment
objectives, policies and restrictions. The Board also considered a report from
the Advisor with respect to its risk management functions related to the
operation of the Fund. Finally, as part of the Board's consideration of the
Advisor's services, the Advisor, in its written materials and at the April 18,
2022 meeting, described to the Board the scope of its ongoing investment in
additional personnel and infrastructure to maintain and improve the quality of
services provided to the Fund and the other funds in the First Trust Fund
Complex. In light of the information presented and the considerations made, the
Board concluded that the nature, extent and quality of the services provided to
the Trust and the Fund by the Advisor under the Agreement have been and are
expected to remain satisfactory and that the Advisor has managed the Fund
consistent with its investment objectives, policies and restrictions.

The Board considered the unitary fee rate payable by the Fund under the
Agreement for the services provided. The Board considered that as part of the
unitary fee the Advisor is responsible for the Fund's expenses, including the
cost of transfer agency, custody, fund administration, legal, audit and other
services and license fees, if any, but excluding the fee payment under the
Agreement and interest, taxes, brokerage commissions and other expenses
connected with the execution of portfolio transactions, distribution and service
fees pursuant to a Rule 12b-1 plan, if any, and extraordinary expenses, if any.
The Board received and reviewed information showing the fee rates and expense
ratios of the peer funds in the Expense Group, as well as advisory and unitary
fee rates charged by the Advisor to other fund (including ETFs) and non-fund
clients, as applicable. Because the Fund pays a unitary fee, the Board
determined that expense ratios were the most relevant comparative data point.
Based on the information provided, the Board noted that the unitary fee rate for
the Fund was above the median total (net) expense ratio of the peer funds in the
Expense Group. With respect to the Expense Group, the Board, at the April 18,
2022 meeting, discussed with Broadridge its methodology for assembling peer
groups and discussed with the Advisor limitations in creating peer groups for
actively-managed ETFs, including that the Expense Group contained both
actively-managed ETFs and open-end mutual funds, and different business models
that may affect the pricing of services among ETF sponsors. The Board took these
limitations and differences into account in considering the peer data. With
respect to fees charged to other non-ETF clients, the Board considered
differences between the Fund and other non-ETF clients that limited their
comparability. In considering the unitary fee rate overall, the Board also
considered the Advisor's statement that it seeks to meet investor needs through
innovative and value-added investment solutions and the Advisor's demonstrated
long-term commitment to the Fund and the other funds in the First Trust Fund
Complex.

The Board considered performance information for the Fund. The Board noted the
process it has established for monitoring the Fund's performance and portfolio
risk on an ongoing basis, which includes quarterly performance reporting from
the Advisor for the Fund. The Board determined that this process continues to be
effective for reviewing the Fund's performance. The Board received and reviewed
information comparing the Fund's performance for periods ended December 31, 2021
to the performance of the funds in the Performance Universe and to that of a
benchmark index. Based on the information provided, the Board noted that the
Fund underperformed the Performance Universe median for the one-year period
ended December 31, 2021 and outperformed the Performance Universe median for the
three- and five-year periods ended December 31, 2021. The Board also noted that
the Fund underperformed the benchmark index for the one, three- and five-year
periods ended December 31, 2021.

On the basis of all the information provided on the unitary fee and performance
of the Fund and the ongoing oversight by the Board, the Board concluded that the
unitary fee for the Fund continues to be reasonable and appropriate in light of
the nature, extent and quality of the services provided by the Advisor to the
Fund under the Agreement.

The Board considered information and discussed with the Advisor whether there
were any economies of scale in connection with providing advisory services to
the Fund and noted the Advisor's statement that it believes that its expenses
relating to providing advisory services to the Fund will likely increase during
the next twelve months as the Advisor continues to build infrastructure and add
new staff. The Board noted that any reduction in fixed costs associated with the
management of the Fund would benefit the Advisor, but that the unitary fee
structure provides a level of certainty in expenses for the Fund. The Board


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ADDITIONAL INFORMATION (CONTINUED)
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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

considered the revenues and allocated costs (including the allocation
methodology) of the Advisor in serving as investment advisor to the Fund for the
twelve months ended December 31, 2021 and the estimated profitability level for
the Fund calculated by the Advisor based on such data, as well as complex-wide
and product-line profitability data, for the same period. The Board noted the
inherent limitations in the profitability analysis and concluded that, based on
the information provided, the Advisor's profitability level for the Fund was not
unreasonable. In addition, the Board considered indirect benefits described by
the Advisor that may be realized from its relationship with the Fund. The Board
considered that the Advisor had identified as an indirect benefit to the Advisor
and FTP their exposure to investors and brokers who, absent their exposure to
the Fund, may have had no dealings with the Advisor or FTP, and noted that the
Advisor does not utilize soft dollars in connection with the Fund. The Board
concluded that the character and amount of potential indirect benefits to the
Advisor were not unreasonable.

Based on all of the information considered and the conclusions reached, the
Board, including the Independent Trustees, unanimously determined that the terms
of the Agreement continue to be fair and reasonable and that the continuation of
the Agreement is in the best interests of the Fund. No single factor was
determinative in the Board's analysis.

BOARD CONSIDERATIONS REGARDING APPROVAL OF AMENDMENT TO THE INVESTMENT
MANAGEMENT AGREEMENT

The Board of Trustees of First Trust Exchange-Traded Fund IV (the "Trust"),
including the Independent Trustees, unanimously approved the amendment (the
"Amendment") of the Investment Management Agreement (the "Agreement") with First
Trust Advisors L.P. (the "Advisor") on behalf of the First Trust Senior Loan
Fund (the "Fund").

The Board approved the Amendment at a meeting held on October 24, 2022. As part
of the review process, the Board reviewed information and had preliminary
discussions with the Advisor regarding the proposed Amendment at meetings held
on April 18, 2022, June 12-13, 2022 and September 18-19, 2022. Following those
preliminary discussions, the Board requested and received information from the
Advisor regarding the proposed Amendment, and that information was considered at
an executive session of the Independent Trustees and their counsel held prior to
the October 24, 2022 meeting, as well as at the October meeting.

In reviewing the Amendment, the Board considered that the purpose of the
Amendment is to modify the unitary fee rate for the Fund under the Agreement by
introducing a breakpoint schedule pursuant to which the unitary fee rate paid by
the Fund to the Advisor will be reduced as assets of the Fund meet certain
thresholds. The Board noted the Advisor's representations that the quality and
quantity of the services provided to the Fund by the Advisor under the Agreement
will not be reduced or modified as a result of the Amendment, and that the
obligations of the Advisor under the Agreement will remain the same in all
respects.

The Board noted that it, including the Independent Trustees, last approved the
continuation of the Agreement for a one-year period ending June 30, 2023 at a
meeting held on June 12-13, 2022. The Board noted that in connection with such
approval it had determined, based upon the information provided, that the terms
of the Agreement were fair and reasonable and that the continuation of the
Agreement was in the best interests of the Fund in light of the nature, extent
and quality of the services provided and such other matters as the Board
considered to be relevant in the exercise of its business judgment.

Based on all of the information considered, the Board, including the Independent
Trustees, unanimously determined that the terms of the Amendment are fair and
reasonable and that the Amendment is in the best interests of the Fund.

                                  REMUNERATION

First Trust Advisors L.P. ("First Trust") is authorised and regulated by the
U.S. Securities and Exchange Commission and is entitled to market shares of
certain funds it manages, including First Trust Senior Loan Fund (the "Fund"),
in certain member states in the European Economic Area in accordance with the
cooperation arrangements in Article 42 of the Alternative Investment Fund
Managers Directive (the "Directive"). First Trust is required under the
Directive to make disclosures in respect of remuneration. The following
disclosures are made in line with First Trust's interpretation of currently
available regulatory guidance on remuneration disclosures.

During the year ended December 31, 2021, the amount of remuneration paid (or to
be paid) by First Trust Advisors L.P. in respect of the Fund is $5,659,300. This
figure is comprised of $589,160 paid (or to be paid) in fixed compensation and
$5,070,140 paid (or to be paid) in variable compensation. There were a total of
24 beneficiaries of the remuneration described above. Those amounts include
$607,593 paid (or to be paid) to senior management of First Trust Advisors L.P.
and $5,051,707 paid (or to be paid) to other employees whose professional
activities have a material impact on the risk profiles of First Trust Advisors
L.P. or the Fund (collectively, "Code Staff").


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                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

Code Staff included in the aggregated figures disclosed above are rewarded in
line with First Trust's remuneration policy (the "Remuneration Policy") which is
determined and implemented by First Trust's senior management. The Remuneration
Policy reflects First Trust's ethos of good governance and encapsulates the
following principal objectives:

      i.    to provide a clear link between remuneration and performance of
            First Trust and to avoid rewarding for failure;

      ii.   to promote sound and effective risk management consistent with the
            risk profiles of the funds managed by First Trust; and

      iii.  to remunerate staff in line with the business strategy, objectives,
            values and interests of First Trust and the funds managed by First
            Trust in a manner that avoids conflicts of interest.

First Trust assesses various risk factors which it is exposed to when
considering and implementing remuneration for Code Staff and considers whether
any potential award to such person(s) would give rise to a conflict of interest.
First Trust does not reward failure, or consider the taking of risk or failure
to take risk in its remuneration of Code Staff.

First Trust assesses performance for the purposes of determining payments in
respect of performance-related remuneration of Code Staff by reference to a
broad range of measures including (i) individual performance (using financial
and non-financial criteria), and (ii) the overall performance of First Trust.
Remuneration is not based upon the performance of the Fund.

The elements of remuneration are balanced between fixed and variable and the
senior management sets fixed salaries at a level sufficient to ensure that
variable remuneration incentivises and rewards strong individual performance but
does not encourage excessive risk taking.

No individual is involved in setting his or her own remuneration.


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BOARD OF TRUSTEES AND OFFICERS
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

The following tables identify the Trustees and Officers of the Trust. Unless
otherwise indicated, the address of all persons is 120 East Liberty Drive, Suite
400, Wheaton, IL 60187.

The Trust's statement of additional information includes additional information
about the Trustees and is available, without charge, upon request, by calling
(800) 988-5891.



                                                                                           NUMBER OF                OTHER
                                                                                         PORTFOLIOS IN         TRUSTEESHIPS OR
                               TERM OF OFFICE                                           THE FIRST TRUST         DIRECTORSHIPS
           NAME,               AND YEAR FIRST                                            FUND COMPLEX          HELD BY TRUSTEE
     YEAR OF BIRTH AND           ELECTED OR              PRINCIPAL OCCUPATIONS            OVERSEEN BY            DURING PAST
  POSITION WITH THE TRUST         APPOINTED               DURING PAST 5 YEARS               TRUSTEE                5 YEARS
------------------------------------------------------------------------------------------------------------------------------------
                                                        INDEPENDENT TRUSTEES
------------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Richard E. Erickson, Trustee  o Indefinite Term  Physician, Edward-Elmhurst Medical           223        None
(1951)                                           Group; Physician and Officer,
                              o Since Inception  Wheaton Orthopedics (1990 to 2021)

Thomas R. Kadlec, Trustee     o Indefinite Term  Retired; President, ADM Investors            223        Director, National Futures
(1957)                                           Services, Inc. (Futures Commission                      Association and ADMIS
                              o Since Inception  Merchant) (2010 to July 2022)                           Singapore Ltd.; Formerly,
                                                                                                         Director of ADM Investor
                                                                                                         Services, Inc., ADM
                                                                                                         Investor Services
                                                                                                         International, ADMIS
                                                                                                         Hong Kong Ltd., and
                                                                                                         Futures Industry
                                                                                                         Association

Denise M. Keefe, Trustee      o Indefinite Term  Executive Vice President, Advocate           223        Director and Board Chair
(1964)                                           Aurora Health and President, Advocate                   of Advocate Home Health
                              o Since 2021       Aurora Continuing Health Division                       Services, Advocate Home
                                                 (Integrated Healthcare System)                          Care Products and
                                                                                                         Advocate Hospice;
                                                                                                         Director and Board Chair of
                                                                                                         Aurora At Home (since
                                                                                                         2018); Director of
                                                                                                         Advocate Physician
                                                                                                         Partners Accountable Care
                                                                                                         Organization; Director and
                                                                                                         Board Chair of RML Long
                                                                                                         Term Acute Care
                                                                                                         Hospitals; and Director of
                                                                                                         Senior Helpers (since
                                                                                                         2021)

Robert F. Keith, Trustee      o Indefinite Term  President, Hibs Enterprises                  223        Formerly, Director of Trust
(1956)                                           (Financial and Management Consulting)                   Company of Illinois
                              o Since Inception

Niel B. Nielson, Trustee      o Indefinite Term  Senior Advisor (2018 to Present),            223        None
(1954)                                           Managing Director and Chief Operating
                              o Since Inception  Officer (2015 to 2018), Pelita
                                                 Harapan Educational Foundation
                                                 (Educational Products and Services)

------------------------------------------------------------------------------------------------------------------------------------
                                                         INTERESTED TRUSTEE
------------------------------------------------------------------------------------------------------------------------------------
James A. Bowen(1), Trustee,   o Indefinite Term  Chief Executive Officer, First Trust         223        None
Chairman of the Board                            Advisors L.P. and First Trust
                              o Since Inception  Portfolios L.P., (1955)
                                                 Chairman of the Board of Directors,
                                                 BondWave LLC (Software Development
                                                 Company) and Stonebridge Advisors LLC
                                                 (Investment Advisor)


-----------------------------

(1)   Mr. Bowen is deemed an "interested person" of the Trust due to his
      position as Chief Executive Officer of First Trust Advisors L.P.,
      investment advisor of the Trust.


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--------------------------------------------------------------------------------
BOARD OF TRUSTEES AND OFFICERS (CONTINUED)
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)



                             POSITION AND             TERM OF OFFICE
     NAME AND                  OFFICES                AND LENGTH OF                         PRINCIPAL OCCUPATIONS
   YEAR OF BIRTH              WITH TRUST                 SERVICE                             DURING PAST 5 YEARS
------------------------------------------------------------------------------------------------------------------------------------
                                                            OFFICERS(2)
------------------------------------------------------------------------------------------------------------------------------------
                                                                
James M. Dykas       President and Chief           o Indefinite Term     Managing Director and Chief Financial Officer, First
(1966)               Executive Officer                                   Trust Advisors L.P. and First Trust Portfolios L.P.;
                                                   o Since 2016          Chief Financial Officer, BondWave LLC (Software
                                                                         Development Company) and Stonebridge Advisors
                                                                         LLC (Investment Advisor)

Donald P. Swade      Treasurer, Chief Financial    o Indefinite Term     Senior Vice President, First Trust Advisors L.P. and
(1972)               Officer and Chief Accounting                        First Trust Portfolios L.P.
                     Officer                       o Since 2016

W. Scott Jardine     Secretary and Chief Legal     o Indefinite Term     General Counsel, First Trust Advisors L.P. and First
(1960)               Officer                                             Trust Portfolios L.P.; Secretary and General Counsel,
                                                   o Since Inception     BondWave LLC; Secretary, Stonebridge Advisors LLC

Daniel J. Lindquist  Vice President                o Indefinite Term     Managing Director, First Trust Advisors L.P. and First
(1970)                                                                   Trust Portfolios L.P.
                                                   o Since Inception

Kristi A. Maher      Chief Compliance Officer and  o Indefinite Term     Deputy General Counsel, First Trust Advisors L.P. and
(1966)               Assistant Secretary                                 First Trust Portfolios L.P.
                                                   o Since Inception

Roger F. Testin      Vice President                o Indefinite Term     Senior Vice President, First Trust Advisors L.P. and
(1966)                                                                   First Trust Portfolios L.P.
                                                   o Since Inception

Stan Ueland          Vice President                o Indefinite Term     Senior Vice President, First Trust Advisors L.P. and
(1970)                                                                   First Trust Portfolios L.P.
                                                   o Since Inception


-----------------------------

(2)   The term "officer" means the president, vice president, secretary,
      treasurer, controller or any other officer who performs a policy making
      function.


                                                                         Page 41





--------------------------------------------------------------------------------
PRIVACY POLICY
--------------------------------------------------------------------------------

                      FIRST TRUST SENIOR LOAN FUND (FTSL)
                          OCTOBER 31, 2022 (UNAUDITED)

                                 PRIVACY POLICY

First Trust values our relationship with you and considers your privacy an
important priority in maintaining that relationship. We are committed to
protecting the security and confidentiality of your personal information.

SOURCES OF INFORMATION

We collect nonpublic personal information about you from the following sources:

      o     Information we receive from you and your broker-dealer, investment
            professional or financial representative through interviews,
            applications, agreements or other forms;

      o     Information about your transactions with us, our affiliates or
            others;

      o     Information we receive from your inquiries by mail, e-mail or
            telephone; and

      o     Information we collect on our website through the use of "cookies."
            For example, we may identify the pages on our website that your
            browser requests or visits.

INFORMATION COLLECTED

The type of data we collect may include your name, address, social security
number, age, financial status, assets, income, tax information, retirement and
estate plan information, transaction history, account balance, payment history,
investment objectives, marital status, family relationships and other personal
information.

DISCLOSURE OF INFORMATION

We do not disclose any nonpublic personal information about our customers or
former customers to anyone, except as permitted by law. In addition to using
this information to verify your identity (as required under law), the permitted
uses may also include the disclosure of such information to unaffiliated
companies for the following reasons:

      o     In order to provide you with products and services and to effect
            transactions that you request or authorize, we may disclose your
            personal information as described above to unaffiliated financial
            service providers and other companies that perform administrative or
            other services on our behalf, such as transfer agents, custodians
            and trustees, or that assist us in the distribution of investor
            materials such as trustees, banks, financial representatives, proxy
            services, solicitors and printers.

      o     We may release information we have about you if you direct us to do
            so, if we are compelled by law to do so, or in other legally limited
            circumstances (for example to protect your account from fraud).

In addition, in order to alert you to our other financial products and services,
we may share your personal information within First Trust.

USE OF WEBSITE ANALYTICS

We currently use third party analytics tools, Google Analytics and AddThis, to
gather information for purposes of improving First Trust's website and marketing
our products and services to you. These tools employ cookies, which are small
pieces of text stored in a file by your web browser and sent to websites that
you visit, to collect information, track website usage and viewing trends such
as the number of hits, pages visited, videos and PDFs viewed and the length of
user sessions in order to evaluate website performance and enhance navigation of
the website. We may also collect other anonymous information, which is generally
limited to technical and web navigation information such as the IP address of
your device, internet browser type and operating system for purposes of
analyzing the data to make First Trust's website better and more useful to our
users. The information collected does not include any personal identifiable
information such as your name, address, phone number or email address unless you
provide that information through the website for us to contact you in order to
answer your questions or respond to your requests. To find out how to opt-out of
these services click on: Google Analytics and AddThis.

CONFIDENTIALITY AND SECURITY

With regard to our internal security procedures, First Trust restricts access to
your nonpublic personal information to those First Trust employees who need to
know that information to provide products or services to you. We maintain
physical, electronic and procedural safeguards to protect your nonpublic
personal information.

POLICY UPDATES AND INQUIRIES

As required by federal law, we will notify you of our privacy policy annually.
We reserve the right to modify this policy at any time, however, if we do change
it, we will tell you promptly. For questions about our policy, or for additional
copies of this notice, please go to www.ftportfolios.com, or contact us at
1-800-621-1675 (First Trust Portfolios) or 1-800-222-6822 (First Trust
Advisors).

March 2022


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FIRST TRUST

First Trust Exchange-Traded Fund IV

INVESTMENT ADVISOR
First Trust Advisors L.P.
120 East Liberty Drive, Suite 400
Wheaton, IL 60187

ADMINISTRATOR, CUSTODIAN,
FUND ACCOUNTANT &
TRANSFER AGENT
The Bank of New York Mellon
240 Greenwich Street
New York, NY 10286

INDEPENDENT REGISTERED
PUBLIC ACCOUNTING FIRM
Deloitte & Touche LLP
111 S. Wacker Drive
Chicago, IL 60606

LEGAL COUNSEL
Chapman and Cutler LLP
111 W. Monroe Street
Chicago, IL 60603





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