Exhibit 99.1 Harvard Bioscience Announces First Quarter 2024 Financial Results Strong gross margin performance and focus on efficiency to support ongoing investments in growth HOLLISTON, Mass., May 7, 2024 (GLOBE NEWSWIRE) -- Harvard Bioscience, Inc. (Nasdaq: HBIO) (the “Company”) today announced financial results for the first quarter ended March 31, 2024. Jim Green, Chairman and CEO, said, “As expected, our first quarter revenues reflect ongoing market headwinds, especially in APAC, amplified by a strong ...