0001526119 2026-05-21 2026-05-21 0001526119 false 8-K 2026-05-21 Verastem, Inc. DE 001-35403 27-3269467 117 Kendrick Street Suite 500 Needham MA 02494 781 292-4200 false false false false Common stock, $0.0001 par value per share VSTM NASDAQ false