GSK 6K Director/pdmr Shareholding

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2021

Commission File Number 001-15170

GlaxoSmithKline plc

(Translation of registrant's name into English)

980 Great West Road, Brentford, Middlesex, TW8 9GS

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F . . . .X. . . . Form 40-F . . . . . . . .

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____

GlaxoSmithKline plc (the 'Company')

Deferred Annual Bonus Plan Awards

On 10 February 2021, the Company granted awards to the Persons Discharging Managerial Responsibilities ('PDMRs') listed below. The awards have been granted in accordance with the rules of the GlaxoSmithKline 2017 Deferred Annual Bonus Plan ('DABP') which was approved by shareholders on 4 May 2017.

Executive Directors are required to defer 50% of any bonus earned into Ordinary Shares or American Depositary Shares ('ADSs') for a period of three years. Other members of the Corporate Executive Team are required to defer 25% of any bonus earned into Ordinary Shares or ADSs for the same period.

The awards have been granted as restricted awards over ADSs for US participants and as nil-cost options over Ordinary Shares for all other participants.

The numbers of Ordinary Shares and ADSs shown below are exclusive of dividend reinvestment that will accrue during the deferral period.

Transaction notification

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Ms E Walmsley
b)	Position/status	Chief Executive Officer
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77	45,779

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr I Mackay
b)	Position/status	Chief Financial Officer
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	31,725

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Dr H Barron
b)	Position/status	Chief Scientific Officer and President, R&D
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	American Depositary Shares ('ADSs') ISIN: US37733W1053
b)	Nature of the transaction	Deferred Bonus Award of ADSs under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			$35.75	24,355

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr R Connor
b)	Position/status	President, 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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	10,057

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Ms D Conrad
b)	Position/status	SVP, Human Resources
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	6,641

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr J Ford
b)	Position/status	SVP & General Counsel
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	8,000

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr N Hirons
b)	Position/status	SVP, Global Ethics and Compliance
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	4,019

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Ms S Jackson
b)	Position/status	SVP, Global Communications & CEO Office
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77	4,045

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr B McNamara
b)	Position/status	CEO, GSK Consumer Healthcare
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	American Depositary Shares ('ADSs') ISIN: US37733W1053
b)	Nature of the transaction	Deferred Bonus Award of ADSs under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			$35.75	7,442

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr L Miels
b)	Position/status	President, Global Pharmaceuticals
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	12,409

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr D Redfern
b)	Position/status	Chief Strategy Officer
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	9,755

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr R Simard
b)	Position/status	President, Pharmaceuticals Supply Chain
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	7,350

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Ms K Terrell
b)	Position/status	Chief Digital & Technology Officer
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	American Depositary Shares ('ADSs') ISIN: US37733W1053
b)	Nature of the transaction	Deferred Bonus Award of ADSs under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			$35.75	4,704

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Mr P Thomson
b)	Position/status	President, Global Affairs
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	5,709

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
f)	Place of the transaction	N/A

1.	Details of PDMR/person closely associated with them ('PCA')
a)	Name	Ms D Waterhouse
b)	Position/status	CEO of ViiV Healthcare
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	Ordinary shares of 25 pence each ('Ordinary Shares') ISIN: GB0009252882
b)	Nature of the transaction	Deferred Bonus Award of Ordinary Shares under the GlaxoSmithKline 2017 Deferred Annual Bonus Plan.
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			£12.77 ..	11,727

d)	Aggregated information	N/A (single transaction)
	Aggregated volume Price
e)	Date of the transaction	2021-02-10
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: February 12, 2021

	By:/s/ VICTORIA WHYTE --------------------------

	Victoria Whyte
	Authorised Signatory for and on
	behalf of GlaxoSmithKline plc

GSK (GSK) 6-KDirector/pdmr Shareholding