X0609 4 2026-05-21 0002118032 Research Alliance Corp III RACC 0001817056 Hammond Matthew false C/O RESEARCH ALLIANCE CORPORATION III 600 FIFTH AVENUE, 23RD FLOOR NEW YORK NY 10020 true true true false Chief Executive Officer 0 Class A Ordinary Shares 2026-05-21 4 A 0 275000 10 A 275000 I By Research Alliance Holdings III LLC Mr. Hammond is the sole director of Research Alliance Holdings III LLC (the "Sponsor"). As such, he has voting and investment discretion with respect to the securities held of record by the Sponsor and may be deemed to have beneficial ownership of the securities held directly by the Sponsor. Mr. Hammond disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein, if any. /s/ Henry Stusnick, Attorney-in-Fact 2026-05-21