Exhibit 99.1 Royalty Revenue Increased 21% YOY to 121millionReiterating2024FinancialGuidance:TotalRevenueof915 - 985million,RepresentingYOYGrowthof10535 - 585million,RepresentingYOYGrowthof263.55 - 3.90,RepresentingYOYGrowthof28750 million Share Repurchase Program SAN DIEGO, May 7, 2024 -- Halozyme Therapeutics, Inc. (NASDAQ: HALO) ("Halozyme" or the "Company") today reported its financial ...