Brian Markison to Retire as Chief Executive Officer; Board Conducting Search for Next CEO Continued Execution of Company’s Strategy to be Led by Prior CEO Mary Anne Heino as Executive Chairperson BEDFORD, Mass., Nov. 06, 2025 (GLOBE NEWSWIRE) -- Lantheus Holdings, Inc. (the “Company”) (NASDAQ: LNTH), the leading radiopharmaceutical-focused company committed to enabling clinicians to Find, Fight and Follow disease to deliver better patient outcomes, today announced that Chief Executive Officer Brian Markis ...