0001521036 2026-11-05 2026-11-05 false 0001521036 8-K 2026-11-05 LANTHEUS HOLDINGS, INC. DE 001-36569 35-2318913 201 Burlington Road South Building Bedford MA 01730 (978) 671-8001 Not Applicable false false false false Common stock, par value $0.01 per share LNTH NASDAQ false