144 0001950499 XXXXXXXX LIVE 0001781174 Acrivon Therapeutics, Inc. 001-41551 480 Arsenal Way Suite 100 Watertown MA 02472 617-207-8979 Peter Blume-Jensen Officer Director Common Stock Morgan Stanley Smith Barney LLC

Executive Services 200 W Civic Center Drive, 4th Floor Sandy UT 84070

14036 30598.48 42853362 08/25/2026 NASDAQ Common Stock 08/21/2026 Settlement of vested RSUs issued under an S-8 Registration Plan Issuer N 41167 08/21/2026 Equity compensation for services rendered N Peter Blume-Jensen

480 Arsenal Way Suite 100 Watertown MA 02472

Common Stock 08/18/2026 1229 2470.29 Kristina Masson

480 Arsenal Way Suite 100 Watertown MA 02472

Common Stock 08/18/2026 484 972.84 Shares sold automatically to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units. These securities were sold by the Issuer's President and CEO, Dr. Peter Blume-Jensen. The table of securities sold during the past 3 months includes sales by each of Dr. Peter Blume-Jensen and his spouse, Dr. Kristina Masson, who is also a director and officer of the Issuer. 08/25/2026 /s/ Adam D. Levy, Attorney-in-Fact