0001974640 dei:FormerAddressMember 2026-08-10 2026-08-10 0001974640 2026-08-10 2026-08-10 false 0001974640 8-K 2026-08-10 Apogee Therapeutics, Inc. DE 001-41740 93-4958665 1 Letterman Drive Building B Suite B6-800 San Francisco CA 94129 (650) 394-5230 221 Crescent St., Bldg 17, Suite 102b Waltham MA 02453 false false false false Common Stock, par value $0.00001 per share APGE NASDAQ false