X0609 4 2026-05-18 0001781174 Acrivon Therapeutics, Inc. ACRV 0001279281 Magovcevic-Liebisch Ivana false C/O ACRIVON THERAPEUTICS, INC. 480 ARSENAL WAY, SUITE 100 WATERTOWN MA 02472 true false false false false Common Stock 2026-05-18 4 A false 9366 0 A 9366 D These shares represent restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. These RSUs shall vest in full on May 18, 2027, subject to the Reporting Person's continuous service through such vesting date. /s/ Adam D. Levy, Attorney-in-Fact 2026-05-20