0001690334 2026-05-20 2026-05-20 false 0001690334 8-K 2026-05-20 SEACOR Marine Holdings Inc. DE 001-37966 47-2564547 12121 Wickchester Lane Suite 500 Houston TX 77079 (346) 980-1700 false false false false Common stock, par value $0.01 per share SMHI NYSE false