| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| WPP plc | Former 10% Owner | SEA CONTAINERS, 18 UPPER GROUND, LONDON, UNITED KINGDOM | WPP plc By: /s/ Balbir Kelly-Bisla, Company Secretary | 24 Feb 2026 | 0000806968 |
| Cavendish Square Holding B.V. | Former 10% Owner | LAAN OP ZUID 167, 3072 DB ROTTERDAM, NETHERLANDS | Cavendish Square Holding B.V. By: /s/ Astrid van Heulen-Mulder, Managing Director | 24 Feb 2026 | 0001636586 |
WPP plc is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.