Notice of AGM

27 March 2026

BAE Systems plc

Notice of Annual General Meeting

BAE Systems plc (the "Company") announces that its 2026 Annual General Meeting (the "2026 AGM") will be digitally-enabled and held on Thursday 7 May 2026 at 9.30 a.m. Full details and joining instructions are set out in the Notice of the 2026 AGM (the "AGM Notice").

The following documents have been posted or made available to shareholders today:

1. AGM Notice;

2. Notification of Annual Report 2025 and 2026 AGM; and

3. Proxy cards/Voting Instruction card for the 2026 AGM.

The AGM Notice will shortly also be available online at: https://www.baesystems.com/investors/agm.

In addition, in accordance with UK Listing Rule 6.4.1R, copies of the above-mentioned documents will be submitted to the National Storage Mechanism today and will be shortly available for inspection at: https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

Please monitor our website at https://www.baesystems.com/investors/agm for any announcements and updates on arrangements for the 2026 AGM. Any changes to the 2026 AGM arrangements will also be announced through the London Stock Exchange.

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For further information, please contact:

Investor Relations Media Relations

Paul Checketts Kristina AndersonInvestor Relations Director Director, Media RelationsTelephone: +44 (0) 3300 466802 Telephone: +44 (0)7540 628673Email: [email protected] Email: [email protected]

Legal Entity Identifier (LEI): 8SVCSVKSGDWMW2QHOH83