GlaxoSmithKline PLC — Foreign Filer Report 2012

Oct 10, 2012

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 October 2012

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

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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

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Notification of Transactions of Directors, Persons Discharging Managerial Responsibility or Connected Persons

I give below details of changes in the interests of the under-mentioned Connected Person in the Ordinary Shares of GlaxoSmithKline plc arising from the purchase of Ordinary Shares at a price of 1447.91 pence per Ordinary Share on 9 October 2012 through the Company's ShareReward Plan ("the Plan"):

Director/PDMR	Connected Person	Ordinary Shares
Mr P C Thomson	Mrs K Thomson	Acquisition of 2 Ordinary Shares under the personal contribution element of the Plan. Acquisition of 2 Ordinary Shares under the matching element of the Plan (Company contribution).

The Company and the above-mentioned person were advised of this information on

10 October 2012.

This notification relates to a transaction notified in accordance with Disclosure and Transparency Rule 3.1.4R(1)(c).

V A Whyte

Company Secretary

10 October 2012

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: October 10, 2012

By: VICTORIA WHYTE

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Victoria Whyte

Authorised Signatory for and on

behalf of GlaxoSmithKline plc