0001521036 2026-02-26 2026-02-26 0001521036 false 8-K 2026-02-26 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