Form 4 Filing for Lantheus Holdings, Inc. - Insider Transaction

Daniel Niedzwiecki, Chief Administrative Officer, General Counsel and Corporate Secretary of Lantheus Holdings, Inc., reported a disposition of 1,911 shares of Common Stock on April 17, 2026. The transaction was executed at a price of $83.82 per share. Following this transaction, Mr. Niedzwiecki directly owns 117,465 shares of Lantheus Holdings, Inc. common stock. The filing was made on April 21, 2026, and is classified as a Form 4, indicating a change in beneficial ownership by an insider.