Halozyme Therapeutics Appoints David Ramsay Interim CFO, Effective March 23

Halozyme Therapeutics, Inc. (NASDAQ: HALO) ("Halozyme" or the "Company") today announced that David Ramsay has been appointed Interim Chief Financial Officer (CFO), effective March 23, 2026. Mr. Ramsay will oversee all financial operations while the company continues its active search for a permanent CFO.

Mr. Ramsay brings more than 30 years of strategic financial leadership across the biotechnology and life sciences sectors, including extensive experience in capital markets, corporate finance, investor relations, and operational scale‑up. He previously served as Halozyme's Chief Financial Officer from 2003 to 2009 and again from 2013 to 2015, during which time the company evolved from a private enterprise to a billion‑dollar public biopharmaceutical company.