FORM 6-K
 
 
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
 
 
Report of Foreign Issuer
 
 
Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934
 
 
 
For period ending 26 September 2016
 
GlaxoSmithKline plc
(Name of registrant)
 
 
 
980 Great West Road, Brentford, Middlesex, TW8 9GS
(Address of principal executive offices)
 
 
 
Indicate by check mark whether the registrant files or
will file annual reports under cover Form 20-F or Form 40-F
 
 
 
Form 20-F x     Form 40-F
 
--
 
Indicate by check mark whether the registrant by furnishing the
information contained in this Form is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under the
Securities Exchange Act of 1934.
 
 
 
Yes      No x
 
 
 
 
GlaxoSmithKline plc (the 'Company')
Transaction notification
 
1.   
Details of PDMR/person closely associated with them ('PCA')
a)
Name
Dr K Slaoui
b)
Position/status
PCA of Dr M M Slaoui (Chairman, Global Vaccines)
c)
Initial notification/
amendment
Initial notification
2.    
Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)
Name
GlaxoSmithKline plc
b)
LEI
5493000HZTVUYLO1D793
3.   
Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transaction(s) has been conducted
a)
Description of the financial  instrument
GlaxoSmithKline plc American Depositary Shares ('ADSs')
ISIN: US37733W1053
   
b)
Nature of the transaction
An increase of 1 ADS following the notional allocation of ADSs on 22 September 2016, at a price of $43.58 per ADS, as a result of the revaluation of the cash element of the notional investment held within the GSK 401(K) plan.
 
c)
Price(s) and
volume(s)
Price(s)                       
 
Volume(s)                            
             $43.58
          1
d)
Aggregated information
 
Aggregated volume Price
n/a (single transaction)
e)
Date of the transaction
2016-09-22
f)
Place of the transaction
 
n/a
 
 
 
 
 
SIGNATURES
 
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorised.
 
 
 
GlaxoSmithKline plc
(Registrant)
Date: September 26, 2016 
 
 
By: VICTORIA WHYTE
----------------------
 
 
Victoria Whyte
Authorised Signatory for and on
behalf of GlaxoSmithKline plc