X0306 4 2022-07-15 0 0001521036 Lantheus Holdings, Inc. LNTH 0001876279 Sabens Andrea C/O LANTHEUS HOLDINGS, INC. 331 TREBLE COVE ROAD NORTH BILLERICA MA 01862 0 1 0 0 Chief Accounting Officer Common Stock 2022-07-15 4 S 0 386 69.12 D 64255 D Common Stock 2022-07-18 4 S 0 1093 71.468 D 63162 D The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2022. The Form 4 originally filed on June 17, 2022 inadvertently reported 64,441 shares due to an administrative error. The correct number of shares that should have been reported under column 5 of Table I is 64,641. The Company requires certain senior executives to cover tax liabilities resulting from the vesting of their equity awards pursuant to sell-to-cover transactions in compliance with Rule 10b5-1. This transaction reported in this Form 4 was effected in compliance with Rule 10b5-1 to satisfy withholding tax liabilities of the Reporting Person associated with the vesting of restricted stock previously granted and reported on a previously filed Form 4. /s/ Eric Green, attorney-in-fact 2022-07-19