GlaxoSmithKline PLC — Director's Dealing 2012

Jul 19, 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 July 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

The Administrators of the GlaxoSmithKline 2009 Deferred Annual Bonus Plan (the Plan) notified the Company and the under-mentioned persons on 19 July 2012 of an increase in their interests in Ordinary Shares and American Depositary Shares (ADSs) at a price of 1470 pence per Ordinary Share and $46.27 per ADS following the re-investment of dividends paid to shareholders on 5 July 2012.

Mrs D P Connelly	Acquisition of 24.671 ADSs under the personal contribution element of the Plan.
	Acquisition of 24.684 ADSs under the matching element of the Plan (Company contribution).
Mr M Dunoyer	Acquisition of 24.760 Ordinary Shares under the personal contribution element of the Plan.
	Acquisition of 34.393 Ordinary Shares under the matching element of the Plan (Company contribution).
Mr W C Louv	Acquisition of 26.147 ADSs under the personal contribution element of the Plan.
	Acquisition of 26.175 ADSs under the matching element of the Plan (Company contribution).

The afore-mentioned individuals have elected to participate in the Plan in respect of their 2010 and 2011 bonus on a post-tax basis. The notional dividends accrued under the matching element will be paid out in proportion to the percentage of the participant's deferred annual bonus matching award holdings that will vest following the end of the relevant three year measurement period.

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

V A Whyte

Company Secretary

19 July 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: July 19, 2012

By: VICTORIA WHYTE

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Victoria Whyte

Authorised Signatory for and on

behalf of GlaxoSmithKline plc