0001557746 2026-06-04 2026-06-04 0001557746 false 8-K 2026-06-04 Aclaris Therapeutics, Inc. DE 001-37581 46-0571712 701 Lee Road Suite 103 Wayne PA 19087 484 324-7933 false false false false Common Stock, $0.00001 par value ACRS NASDAQ false