Harvard Bioscience Inc SEC filings HBIO
Harvard Bioscience Inc has 1,000 filings in SEC EDGAR's recent list, going back to Nov 20, 2007. Its latest annual report, Form 10-K, was filed on Mar 13, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 11, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Sep 22, 2026 | — |
| 4 | Insider transaction | Jun 12, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 4 | Insider transaction | Apr 1, 2026 | Mar 20, 2026 |
| 4 | Insider transaction | Apr 1, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 23, 2026 | Mar 20, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 23, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 16, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| 4 | Insider transaction | Dec 30, 2025 | Dec 17, 2025 |
| 3 | Initial insider ownership | Dec 30, 2025 | Dec 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 3, 2025 | — |
| 4 | Insider transaction | Oct 7, 2025 | Sep 5, 2025 |
| 3 | Initial insider ownership | Oct 7, 2025 | Sep 5, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 7, 2025 | — |
| 4 | Insider transaction | Jul 25, 2025 | Jul 16, 2025 |
| 3 | Initial insider ownership | Jul 25, 2025 | Jul 16, 2025 |
| 4 | Insider transaction | Jul 18, 2025 | Jul 16, 2025 |
| 4 | Insider transaction | Jul 18, 2025 | Jul 16, 2025 |
| 3 | Initial insider ownership | Jul 18, 2025 | Jul 16, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 17, 2025 | — |
| 3 | Initial insider ownership | Jun 9, 2025 | Jun 2, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 30, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | May 14, 2025 | May 12, 2025 |
| 3 | Initial insider ownership | May 14, 2025 | May 12, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 8, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 7, 2025 | — |
| 4 | Insider transaction | Mar 21, 2025 | Mar 19, 2025 |
| 4 | Insider transaction | Mar 21, 2025 | Mar 19, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 17, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 10, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 4, 2025 | — |
| 4 | Insider transaction | Jan 3, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 29, 2024 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 29, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| 4 | Insider transaction | May 23, 2024 | May 21, 2024 |
| 4 | Insider transaction | May 23, 2024 | May 21, 2024 |
| 4 | Insider transaction | May 23, 2024 | May 21, 2024 |
| 4 | Insider transaction | May 23, 2024 | May 21, 2024 |
| SC 13G | Ownership over 5% (passive) | Mar 19, 2024 | — |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jan 26, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 22, 2024 | — |
| 4 | Insider transaction | Jan 3, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 29, 2023 |
| SC 13G | Ownership over 5% (passive) | Aug 28, 2023 | — |
| 4 | Insider transaction | Aug 21, 2023 | Aug 17, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 11, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 22, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 22, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 22, 2023 |
| 4 | Insider transaction | May 23, 2023 | May 22, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 8, 2023 | Mar 6, 2023 |
| 4 | Insider transaction | Mar 8, 2023 | Mar 6, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 15, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 11, 2023 | — |
| 3 | Initial insider ownership | Jan 3, 2023 | Jan 1, 2023 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 29, 2022 |
| 4 | Insider transaction | Jan 3, 2023 | Dec 29, 2022 |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2022 | — |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 4 | Insider transaction | Sep 15, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Aug 29, 2022 | Aug 26, 2022 |
| 4 | Insider transaction | Aug 26, 2022 | Aug 24, 2022 |
| 4 | Insider transaction | Aug 24, 2022 | Aug 22, 2022 |
| 4 | Insider transaction | Aug 22, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 18, 2022 | Aug 17, 2022 |
| 4 | Insider transaction | Jul 20, 2022 | Jul 18, 2022 |
| 4 | Insider transaction | Jul 12, 2022 | Jul 8, 2022 |
| SC 13G | Ownership over 5% (passive) | Jul 8, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Jun 21, 2022 | — |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 14, 2022 | Jun 11, 2022 |
| 4 | Insider transaction | Jun 14, 2022 | Jun 11, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 10, 2022 | May 6, 2022 |
| 4 | Insider transaction | Mar 3, 2022 | Mar 1, 2022 |
| 4 | Insider transaction | Mar 3, 2022 | Mar 1, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 3, 2022 | — |
| 4 | Insider transaction | Jan 3, 2022 | Dec 29, 2021 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 1, 2022 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 1, 2022 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 1, 2022 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 1, 2022 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 1, 2022 |
| 4 | Insider transaction | Dec 30, 2021 | Dec 29, 2021 |
| 4 | Insider transaction | Dec 30, 2021 | Dec 29, 2021 |
| 4 | Insider transaction | Dec 29, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Dec 29, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Dec 29, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Dec 29, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Nov 15, 2021 | Nov 12, 2021 |
| 4 | Insider transaction | Nov 3, 2021 | Nov 1, 2021 |
| SC 13G | Ownership over 5% (passive) | Sep 3, 2021 | — |
| 4 | Insider transaction | Aug 25, 2021 | Aug 23, 2021 |
| 4 | Insider transaction | Jul 20, 2021 | Jul 18, 2021 |
| 4 | Insider transaction | Jul 12, 2021 | Jul 8, 2021 |
| 4 | Insider transaction | Jun 15, 2021 | Jun 11, 2021 |
| 4 | Insider transaction | Jun 15, 2021 | Jun 11, 2021 |
| 4 | Insider transaction | Jun 15, 2021 | Jun 11, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| 4 | Insider transaction | May 25, 2021 | May 21, 2021 |
| 4 | Insider transaction | May 21, 2021 | May 19, 2021 |
| 4 | Insider transaction | May 19, 2021 | May 18, 2021 |
| 4 | Insider transaction | Mar 26, 2021 | Mar 23, 2021 |
| 4 | Insider transaction | Mar 19, 2021 | Mar 17, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 3, 2021 | Mar 1, 2021 |
| 4 | Insider transaction | Mar 3, 2021 | Mar 1, 2021 |
| 4 | Insider transaction | Mar 3, 2021 | Mar 1, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2021 | — |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 5, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 5, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Jan 5, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Nov 3, 2020 | Nov 1, 2020 |
| 4 | Insider transaction | Aug 10, 2020 | Aug 6, 2020 |
| 4 | Insider transaction | Aug 4, 2020 | Jul 30, 2020 |
| 4 | Insider transaction | Jul 23, 2020 | Jul 21, 2020 |
| 4 | Insider transaction | Jul 21, 2020 | Jul 18, 2020 |
| 4 | Insider transaction | Jul 17, 2020 | Jul 15, 2020 |
| 4 | Insider transaction | Jul 14, 2020 | Jul 8, 2020 |
| 4 | Insider transaction | Jul 10, 2020 | Jul 8, 2020 |
| 4 | Insider transaction | Jul 2, 2020 | Jul 1, 2020 |
| 4 | Insider transaction | Jul 2, 2020 | Jul 1, 2020 |
| 4 | Insider transaction | Jul 2, 2020 | Jul 1, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 22, 2020 | — |
| 4 | Insider transaction | Jun 19, 2020 | Jun 11, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 18, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 18, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 18, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 18, 2020 |
| 4 | Insider transaction | Jun 19, 2020 | Jun 11, 2020 |
| 4 | Insider transaction | Jun 16, 2020 | Jun 12, 2020 |
| 4 | Insider transaction | Jun 15, 2020 | Jun 11, 2020 |
| 4 | Insider transaction | Jun 15, 2020 | Jun 11, 2020 |
| 4 | Insider transaction | Jun 15, 2020 | Jun 11, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 1, 2020 | — |
| 4 | Insider transaction | May 27, 2020 | May 23, 2020 |
| 4 | Insider transaction | May 8, 2020 | May 7, 2020 |
| 4 | Insider transaction | May 1, 2020 | May 1, 2020 |
| 4 | Insider transaction | Apr 15, 2020 | Apr 13, 2020 |
| 3 | Initial insider ownership | Apr 8, 2020 | Apr 6, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 6, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 19, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2020 | — |
| 4 | Insider transaction | Jan 3, 2020 | Jan 1, 2020 |
| 4 | Insider transaction | Jan 3, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Jan 3, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Jan 3, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Jan 3, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Jan 3, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Dec 2, 2019 | Nov 1, 2019 |
| 4 | Insider transaction | Nov 13, 2019 | Nov 8, 2019 |
| 4 | Insider transaction | Nov 13, 2019 | Nov 11, 2019 |
| 4 | Insider transaction | Nov 6, 2019 | Nov 1, 2019 |
| 3 | Initial insider ownership | Nov 6, 2019 | Nov 1, 2019 |
| 4 | Insider transaction | Nov 5, 2019 | Oct 31, 2019 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Laboratory Analytical Instruments (SIC 3826)
- Listed as
- HBIO (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Holliston, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1123494
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.