0001959173-23-000997.txt : 20230511 0001959173-23-000997.hdr.sgml : 20230511 20230511104912 ACCESSION NUMBER: 0001959173-23-000997 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230511 DATE AS OF CHANGE: 20230511 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Lantheus Holdings, Inc. CENTRAL INDEX KEY: 0001521036 STANDARD INDUSTRIAL CLASSIFICATION: IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835] IRS NUMBER: 352318913 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-36569 FILM NUMBER: 23909534 BUSINESS ADDRESS: STREET 1: 331 TREBLE COVE ROAD CITY: NORTH BILLERICA STATE: MA ZIP: 01862 BUSINESS PHONE: 978 671-8001 MAIL ADDRESS: STREET 1: 331 TREBLE COVE ROAD CITY: NORTH BILLERICA STATE: MA ZIP: 01862 FORMER COMPANY: FORMER CONFORMED NAME: Lantheus MI Holdings, Inc. DATE OF NAME CHANGE: 20110517 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Niedzwiecki Daniel CENTRAL INDEX KEY: 0001861113 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O LANTHEUS HOLDINGS, INC. STREET 2: 331 TREBLE COVE ROAD CITY: NORTH BILLERICA STATE: MA ZIP: 01862 144 1 primary_doc.xml 144 0001861113 XXXXXXXX LIVE 0001521036 Lantheus Holdings, Inc. 001-36569 331 TREBLE COVE ROAD NORTH BILLERICA MA 01862 978 671-8001 Niedzwiecki Daniel Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

6113 604086.66 68332890 05/11/2023 NASDAQ Common 02/26/2022 Restricted Stock Vesting Issuer N 6113 02/26/2022 Compensation N DANIEL NIEDZWIECKI

201 Burlington Road South Building Bedford MA 01730

Common 03/06/2023 9079 658779.51 DANIEL NIEDZWIECKI

201 Burlington Road South Building Bedford MA 01730

Common 03/07/2023 1055 76122.79 05/11/2023 02/24/2023 /s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Daniel Niedzwiecki