GlaxoSmithKline PLC — AGM Information 2021

Mar 30, 2021

Annual General Meeting 2021 (AGM)

980 Great West Road, Brentford, Middlesex TW8 9GS

on Wednesday 5 May 2021 at 2.30pm

Notice of Availability

The 2020 Annual Report and 2021 Notice of Annual General Meeting are now available to view and/or download in the Investors section of www.gsk.com

Electronic AGM

The AGM will be broadcast live for you to join and participate electronically via the AGM website at https://web.lumiagm.com. Please refer to the enclosed AGM Guide or follow the instructions in the Notice of Meeting. You will need the following details to access the AGM website:

Meeting ID: 140-105-232

SRN:

PIN:

Please note that due to COVID-19 restrictions, shareholders will unfortunately not be permitted to physically attend the meeting this year.

How to vote your shares at the AGM

Before completing the Proxy Form, please read the notes on appointing a proxy overleaf. You can submit your proxy instructions online (Option 1 below) or by completing and returning the Proxy Form to Equiniti (Option 2 below). In either case, your proxy instructions must be received by Equiniti by 2.30pm on Friday 30 April 2021. If you do not wish anyone other than the company or Equiniti to see the Proxy Form you may send it in an envelope to: FREEPOST RTHJ-CLLL-KBKU, Equiniti, Aspect House, Spencer Road, Lancing, BN99 8LU. No postage is required if posted within the United Kingdom. If the Proxy Form is posted outside of the United Kingdom, you should return it in an envelope, with the postage paid, to Equiniti, Aspect House, Spencer Road, Lancing, BN99 6DA.

Option 1 Vote Online please go to www.sharevote.co.uk and follow the on-screen instructions.

Voting ID	Task ID	Shareholder reference number

				Shareholder reference number
					2172-332-S
AGM 2021 Proxy Form I/We, the undersigned, being a member/members of GlaxoSmithKline plc, appoint the following person or failing him/her, the Chairman of the Meeting, as my/our proxy to attend/speak and vote on my/our behalf at the GlaxoSmithKline plc AGM to be held on Wednesday 5 May 2021 and at any adjournment thereof, and direct that my/our proxy will vote (or withhold my/our vote) on each of the resolutions referred to in the Notice of Annual General Meeting as indicated with a cross in the appropriate spaces below:					Number of shares
Option 2 I want to give voting instructions as follows
Ordinary Business 1 To receive and adopt the 2020 Annual Report 2 To approve the Annual report on remuneration	For	Against	Vote withheld	Special Business 16 To authorise the company and its subsidiaries to make donations to political organisations and		For	Against	Vote withheld
To re-elect Sir Jonathan Symonds as a Director To re-elect Emma Walmsley as a Director To re-elect Charles Bancroft as a Director To re-elect Vindi Banga as a Director				incur political expenditure 17 To authorise allotment of shares 18 To disapply pre-emption rights – general power* 19 To disapply pre-emption rights – in connection with
7 To re-elect Dr Hal Barron as a Director 8 To re-elect Dr Vivienne Cox as a Director 9 To re-elect Lynn Elsenhans as a Director				an acquisition or specified capital investment 20 To authorise the company to purchase its own shares 21 To authorise exemption from statement of name of
10 To re-elect Dr Laurie Glimcher as a Director 11 To re-elect Dr Jesse Goodman as a Director 12 To re-elect Iain Mackay as a Director				senior statutory auditor 22 To authorise reduced notice of a general meeting other than an AGM*
13 To re-elect Urs Rohner as a Director 14 To re-appoint the auditor 15 To determine remuneration of the auditor					* Indicates a special resolution.

Signature of shareholder or duly authorised attorney or, for a corporate shareholder, common seal or signature of an authorised officer, attorney or other person Date

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AGM 2021

Notes on appointing a proxy

• 1. If you wish to appoint as your proxy someone other than the Chairman of the Meeting, insert his/her name in the space provided in the first box on the Proxy Form (and refer to Note 10 for information on how to obtain log in details to enable your proxy to access the electronic AGM). If the proxy is being appointed in relation to part of your holding only, enter the number of shares over which he/she is authorised to act as your proxy in the box next to the proxy's name. If this box is left blank, he/she will be authorised in respect of your full voting entitlement.
• 1. To appoint more than one proxy, you should obtain additional Proxy Forms from the company's registrar, Equiniti, or you may photocopy the Proxy Form. Ensure that you specify the number of shares over which each proxy can act, as in Note 1 above. Multiple Proxy Forms must be returned together in the same envelope.
• 1. To be valid, the Proxy Form and the power of attorney or other authority (if any) under which it is signed and dated must be received by Equiniti by 2.30pm on Friday 30 April 2021.
• 1. The "Vote withheld" option is provided to enable a member to withhold his/her vote on any particular resolution. It should be noted that a vote withheld is not a vote in law and will not be counted in the calculation of the proportion of votes "For" or "Against" a resolution.
• 1. To register the appointment of a proxy electronically, log on to www.sharevote.co.uk using the Voting ID, Task ID and Shareholder reference number printed overleaf and follow the instructions provided. The proxy appointment must be registered on the website by 2.30pm on Friday 30 April 2021.
• 1. In the case of a corporate shareholder, the proxy appointment must be under seal or signed by a duly authorised officer, attorney or other person.
• 1. In the case of joint holdings, the vote of the first named in the register of members will be accepted to the exclusion of the votes of other joint holders.
• 1. If no specific directions are given, the proxy will vote or abstain from voting as he/she thinks fit on the specified resolutions and, unless instructed otherwise, the person appointed proxy may also vote or abstain from voting as he/she thinks fit on any business (including amendments to resolutions) which may properly come before the Meeting.
• 1. A proxy need not be a member of the company, but must attend the Meeting to represent you. If no name is inserted in the box provided, the Chairman of the Meeting will be deemed to be appointed as the proxy.
• 1. If you are appointing as your proxy someone other than the Chairman to attend, speak and vote on your behalf, you should complete the Proxy Form and return it to Equiniti or register the appointment of your proxy electronically (Note 5). Once your proxy appointment has been received and processed by Equiniti, you or your appointed proxy should contact Equiniti to obtain log in details to enable your appointed proxy to access the electronic AGM. Equiniti can be contacted on 0371 384 2991 or +44 121 415 7067 if calling from outside the UK. Lines are open 8.30am to 5.30pm Monday to Friday (excluding public holidays in England & Wales).
• 1. Any alteration to the Proxy Form should be initialled by the person who signed it.
• 1. If you do not wish anyone other than the company or Equiniti to see the Proxy Form you may send it in an envelope to: FREEPOST RTHJ-CLLL-KBKU, Equiniti, Aspect House, Spencer Road, Lancing, BN99 8LU (no stamp is needed if posted within the United Kingdom).
• 1. The completion and return of the Proxy Form will not prevent a member from participating in the Meeting electronically and submitting a vote online at the AGM if they wish to do so.

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