X0609 4 2026-08-31 0001781174 Acrivon Therapeutics, Inc. ACRV 0002151012 Levin Michaela false C/O ACRIVON THERAPEUTICS, INC. 480 ARSENAL WAY, SUITE 100 WATERTOWN MA 02472 false true false false Chief Business Officer false Common Stock 2026-08-31 4 A false 30000 0 A 30000 D Stock Option (Right to Buy) 2.09 2026-08-31 4 A false 130000 0 A 2036-08-30 Common Stock 130000 130000 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 September 1, 2027, subject to the Reporting Person's continuous service through such vesting date. Twenty-five percent (25%) of the shares subject to the option vest on September 1, 2027, and the remaining shares subject to the option vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each vesting date. /s/ Adam D. Levy, Attorney-in-Fact 2026-09-02