X0508 4 2026-02-20 0 0001086222 AKAMAI TECHNOLOGIES INC AKAM 0001106232 LEIGHTON F THOMSON C/O AKAMAI TECHNOLOGIES, INC. 145 BROADWAY CAMBRIDGE MA 02142 1 1 0 0 Chief Executive Officer 0 Common Stock 2026-02-20 4 A 0 24094 0 A 73229 D Common Stock 2026-02-20 4 F 0 11650 94.17 D 61579 D Common Stock 2529963 I See note Common Stock 108358 I See note Represents shares issued under the Akamai Technologies, Inc. Amended and Restated 2013 Stock Incentive Plan in payment of 2025 bonus award. Held by the F. Thomson Leighton and Bonnie B. Leighton Revocable Trust dtd 11/3/99 of which Mr. Leighton serves as a trustee. Mr. Leighton disclaims beneficial ownership of shares held by such trust except to the extent of his pecuniary interest therein. Includes 10,481 shares received pursuant to a distribution from the David T. Leighton trust, of which the Reporting Person served as trustee. Such distribution was made in accordance with the exemptions afforded under 16a-9 and 16a-13. Held by the TBL Foundation of which Mr. Leighton serves as a trustee. /s/ Thomas M. Lair, as power of attorney 2026-02-23