Exhibit 99.1 Penumbra, Inc. Reports First Quarter 2024 Financial Results ALAMEDA, Calif., May 7, 2024 /PRNewswire/ -- Penumbra, Inc. (NYSE: PEN), a global healthcare company focused on innovative therapies, today reported financial results for the first quarter ended March 31, 2024. • Revenue of $278.7 million in the first quarter of 2024, an increase of 15.4% or 15.2% in constant currency1, compared to the first quarter of 2023. • U.S. thrombectomy revenue of $150.3 million in the first quarter of 2024 inc ...