0001341235 2026-09-29 2026-09-29 0001341235 dei:FormerAddressMember 2026-09-29 2026-09-29 false 0001341235 8-K 2026-09-29 ALDEYRA THERAPEUTICS, INC. DE 001-36332 20-1968197 23 Bradford Street Concord MA 01742 781 761-4904 131 Hartwell Avenue Suite 320 Lexington MA 02421 false false false false Common Stock, $0.001 par value per share ALDX NASDAQ false