Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:48abb492-5479-c698-a548-83770221e3dd 2026-04-30T20:24:06-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services HBIO: FROST MARK T (CFO) Acquired (JB) 30k Shares of HARVARD BIOSCIENCE INC for $0.00 on 3/20 urn:uuid:5403a6c5-52cf-4939-aeff-849d6b5d398f 2026-04-01T09:57:46-04:00 HBIO: FROST MARK T (CFO) Bought (B) 5k Shares of HARVARD BIOSCIENCE INC for $5.00 on 3/16 urn:uuid:179eb01d-7c38-288f-430c-79d7cdd1eecc 2026-04-01T09:44:14-04:00 HBIO: DUKE JOHN D (CEO,DIR) Acquired (JB) 75k Shares of HARVARD BIOSCIENCE INC for $0.00 on 3/20 urn:uuid:71d0762b-51c9-f4d7-7631-6d0c0c72b51b 2026-03-23T09:48:04-04:00 HBIO: DUKE JOHN D (CEO,DIR) Bought (B) 5k Shares of HARVARD BIOSCIENCE INC for $5.01 on 3/16 urn:uuid:009a9416-971c-4d3f-54e2-8e3e37d2124a 2026-03-17T17:56:45-04:00 HBIO: SNIDER WILLIAM (DIR) Acquired (JB) 110k Shares of HARVARD BIOSCIENCE INC for $0.00 on 12/17 urn:uuid:bce42d6b-2103-7c27-959a-52b73c2e4807 2025-12-30T20:48:41-05:00 HBIO: SNIDER WILLIAM (DIR) Filed a Form 3, Becoming a Registered Insider at HARVARD BIOSCIENCE INC With Initial Holdings of 0 urn:uuid:f9f7e950-f015-1a39-2a75-e9c40644a089 2025-12-30T20:46:35-05:00 HBIO: DENELSKY STEPHEN J (DIR) Acquired (JB) 110k Shares of HARVARD BIOSCIENCE INC for $0.00 on 9/5 urn:uuid:61e6e7dc-5dde-96a3-77df-78cb862a8ab6 2025-10-07T13:28:32-04:00 HBIO: DENELSKY STEPHEN J (DIR) Filed a Form 3, Becoming a Registered Insider at HARVARD BIOSCIENCE INC With Initial Holdings of 0 urn:uuid:1e5615f1-cae3-987f-67d9-a27849426ebf 2025-10-07T13:26:51-04:00 HBIO: GREEN JAMES W (DIR) Disposed (JS) 392,522 Shares of HARVARD BIOSCIENCE INC for $0.53 on 8/15 urn:uuid:9956d56b-58fe-0db2-dfb3-5e0bf408dd5c 2025-08-19T14:39:23-04:00 HBIO: DUKE JOHN D (CEO,DIR) Acquired (JB) 1mm Shares of HARVARD BIOSCIENCE INC for $0.00 on 8/8 urn:uuid:3731fefc-5e6f-cf6e-9d8c-60ea57800ff4 2025-08-11T21:09:51-04:00