0001776661 2026-11-04 2026-11-04 false 0001776661 8-K 2026-11-04 Advantage Solutions Inc. DE 001-38990 83-4629508 Forsyth Boulevard St. Louis MO 63105 314 655-9333 false false false false Class A common stock, $0.0001 par value per share ADV NASDAQ false