NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS (Form 6-K)

NOTICE OF ANNUAL GENERAL MEETING OF SHAREHOLDERS

To Be Held July 28, 2026

NOTICE IS HEREBY GIVEN that the 2026 annual general meeting of shareholders (the "AGM") of GLOBALFOUNDRIES Inc. (the "Company") will be held on July 28, 2026 at 8:00 a.m., Eastern Time. The AGM will be held at the offices of the Company at 140 East 45th Street, 41st Floor, New York, New York 10017, and virtually at: www.virtualshareholdermeeting.com/GFS2026. Shareholders are cordially invited to attend.

AGENDA

The AGM will be held for the purpose of considering and, if thought fit, passing and approving the following resolutions:

1.to elect the below nominees as Class II directors of the Company, each to serve for a three-year term, or until such person resigns or is removed in accordance with the terms of the Company's Amended and Restated Memorandum and Articles of Association:

a.David Kerko

b.Jack Lazar

c.Carlos Obeid

Shareholders also will consider and act upon such other business as may properly come before the AGM or any adjournment or postponement thereof. If you grant a proxy, the persons named as proxy holders, Saam Azar and Jeff Worth, or either of them, will have the discretion to vote your shares on any additional business that is properly presented for a vote at the Annual Meeting or any adjournment or postponement thereof.

The Board of Directors of the Company (the "Board") has fixed the close of business on June 1, 2026, Eastern time, as the record date (the "Record Date") for determining the shareholders of the Company entitled to receive notice of the AGM or any adjournment thereof. The holders of record of the common shares as at the close of business on the Record Date are entitled to receive notice of and attend the AGM and any adjournment thereof.

How to Attend the 2026 Annual General Meeting: The AGM will be held on July 28, 2026 at 8:00 a.m., Eastern Time, at the offices of the Company at 140 East 45th Street, 41st Floor, New York, New York 10017. Information on how to vote in person at the AGM is discussed below. If you plan to attend the AGM, please note that attendance will be limited to shareholders as of the Record Date. Each shareholder may be asked to present valid photo identification, such as a driver's license or passport. If you are the beneficial owner of shares held in "street name" (that is, you hold your shares through a broker, bank or other holder of record), you must obtain a proxy issued in your name from that holder of record in order to vote your shares or ask questions during the AGM.

How to Attend the 2026 Annual General Meeting Virtually: As well as being held at the offices of the Company at 140 East 45th Street, 41st Floor, New York, New York 10017, this year's AGM will be held virtually via live webcast. In order to attend and participate in the AGM virtually, you will need to visit

www.virtualshareholdermeeting.com/GFS2026 and you will be required to enter the 16-digit control number included on your Notice of Internet Availability of Proxy Materials ("Notice of Internet Availability"), on your proxy card (if you received a printed copy of the proxy materials), or on the instructions that accompanied your proxy materials to access the meeting. If you are the beneficial owner of shares held in "street name" (that is, you hold your shares through a broker, bank or other holder of record), you must register in advance to gain access to the AGM and obtain a proxy issued in your name from that holder of record in order to vote your shares or ask questions during the AGM. You may also vote online during the AGM by following the instructions provided on the meeting website during the Annual Meeting. To vote at the meeting, visit www.virtualshareholdermeeting.com/GFS2026 and log in using the aforementioned information. Shareholders will have the opportunity to ask questions at the AGM during designated periods.

The Company's 2025 annual report for the fiscal year ended December 31, 2025 was filed with the U.S. Securities and Exchange Commission (the "Commission") on February 27, 2026 (the "Form 20-F Annual Report"). Shareholders can access, free of charge, the Form 20-F Annual Report on the Investor Relations section of the Company's website at https://investors.gf.com/financials-and-filings/sec-filings, on the SEC's website at www.sec.gov, and at www.proxyvote.com.

In addition to the other information included in the Form 20-F Annual Report, you will find in the Form 20-F Annual Report the biographies for the incumbent members of the Board.

The Board recommends that shareholders of the Company vote "FOR" the resolutions at the AGM. Further details regarding the resolutions are set out in the attached proxy statement (which proxy statement is hereby incorporated into this notice by reference) (the "Proxy Statement").

Please read our Proxy Statement for important information on the resolutions. Your vote is important. Whether or not you expect to attend the AGM, and whether you are a registered shareholder (with shares held of record) or a holder of shares in "street name" (with shares held by a bank, brokerage firm or other nominee), please vote at your earliest convenience by following the instructions in the Notice of Internet Availability, proxy card and in our Proxy Statement.

Proxies submitted by registered shareholders and street shareholders (whether by internet or by mailing a proxy card) must be received by us no later than 11:59 p.m., Eastern time, on July 27, 2026 to ensure your representation at our AGM.

By Order of the Board of Directors

/s/ Thomas Caulfield

Name: Dr. Thomas Caulfield

Title: Executive Chairman

Dated: June 15, 2026

Registered Office:

P.O. Box 309

Ugland House

Grand Cayman

KY1-1104

Cayman Islands