Exhibit 99.1 Penumbra, Inc. Reports Fourth Quarter and Full Year 2023 Financial Results ALAMEDA, Calif., Feb. 22, 2024 /PR Newswire/ -- Penumbra, Inc. (NYSE: PEN), a global healthcare company focused on innovative therapies, today reported financial results for the fourth quarter and full year ended December 31, 2023. Financial Highlights: • Revenue of $284.7 million for the fourth quarter of 2023, an increase of 28.7% or 27.9% in constant currency1 compared to the fourth quarter of 2022. Revenue of $1,058. ...