GlaxoSmithKline PLC — Proxy Solicitation & Information Statement 2020

Mar 24, 2020

Annual General Meeting 2020 (AGM) Attendance Card

Sofitel London Heathrow, Terminal 5, London Heathrow Airport, TW6 2GD

on Wednesday 6 May 2020 at 2.30pm

Please bring this Attendance Card with you and try to arrive by 1.30pm to allow for registration and security clearance.

How to vote your shares at the AGM

Guidance notes are on the reverse of this Attendance Card. 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 Monday 4 May 2020. 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

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Shareholder reference number
2172-317-S
AGM 2020 Proxy Form I/We, the undersigned, being a member/members of GlaxoSmithKline plc, appoint the following person Number of shares 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 6 May 2020 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:
Option 2 I want to give voting instructions as follows
Vote Ordinary Business For Against withheld 16 To re-appoint the auditor 1 To receive and adopt the 2019 Annual Report 2 To approve the Annual report on remuneration 17 To determine remuneration of the auditor	For	Against	Vote withheld
3 To approve the Remuneration policy Special Business 4 To elect Sir Jonathan Symonds as a Director 18 To authorise the company and its subsidiaries 5 To elect Charles Bancroft as a Director to make donations to political organisations and 6
To re-elect Emma Walmsley as a Director incur political expenditure To re-elect Vindi Banga as a Director 19 To authorise allotment of shares To re-elect Dr Hal Barron as a Director 20 To disapply pre-emption rights – general power* To re-elect Dr Vivienne Cox as a Director 21 To disapply pre-emption rights – in connection with
10 To re-elect Lynn Elsenhans as a Director an acquisition or specified capital investment 11 To re-elect Dr Laurie Glimcher as a Director 22 To authorise the company to purchase its own shares 12 To re-elect Dr Jesse Goodman as a Director 23 To authorise exemption from statement of name of
senior statutory auditor 13 To re-elect Judy Lewent as a Director 14 To re-elect Iain Mackay as a Director 24 To authorise reduced notice of a general meeting other than an AGM 15 To re-elect Urs Rohner as a Director 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 2020 Attendance Card

Directions

By Underground:

Take the Piccadilly Line to Heathrow Terminal 5. Then follows signs on Arrivals level for the Sofitel London Heathrow directing you to the lifts and footbridge taking you directly to the hotel.

By Railway:

Take the Heathrow Express Train to Heathrow Terminal 5. Then follow signs on Arrivals level for the Sofitel London Heathrow directing you to the lifts and footbridge taking you directly to the hotel.

By Road:

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From North – M1/M40/M11 – M25 then exit at Junction 14 signposted to Heathrow Terminal 5 and then follow signs for Sofitel London Heathrow;

From South – M3/M23-M25 then exit at Junction 14 to Heathrow Terminal 5 and then follow signs for Sofitel London Heathrow;

From East – exit at Junction 4 from the M4 signposted to Heathrow Airport, then follow signs to Terminal 5 and then follow signs for Sofitel London Heathrow;

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. 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 Monday 4 May 2020.
• 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 Monday 4 May 2020.

From West – M4-M25 then exit at Junction 14 to Heathrow Terminal 5 and then follow signs for Sofitel London Heathrow.

Security: The meeting venue will operate a similar degree of security access control to that found at modern airports.

This procedure should not cause any delay. Equipment such as video cameras and tape recorders may not be brought into the meeting room. A cloakroom facility is available for your convenience.

Disabled: Step-free access is available from Heathrow Terminal 5 to the meeting venue.

For the hard of hearing: An induction loop system will be provided in the meeting room.

For the visually impaired: Please sit nearer the front section of the meeting room.

• 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. 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 preclude a member from attending the Meeting and voting in person.