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 | — |
| 10-Q | Quarterly report | Aug 11, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 11, 2026 | Aug 11, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2026 | Aug 11, 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 |
| S-8 | Employee stock plan registration | Jun 10, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 2, 2026 | Jun 2, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 10-Q | Quarterly report | May 12, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
May 12, 2026 | May 12, 2026 |
| 8-K |
Current report
Results of operations
|
May 12, 2026 | May 12, 2026 |
| DEFA14A | Additional proxy material | Apr 21, 2026 | — |
| DEF 14A | Proxy statement | Apr 21, 2026 | Jun 2, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 17, 2026 | Mar 17, 2026 |
| 10-K | Annual report | Mar 13, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2026 | Mar 12, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 10, 2026 | Mar 6, 2026 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure, Other events
|
Mar 6, 2026 | Mar 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| 8-K |
Current report
Results of operations
|
Feb 10, 2026 | Feb 10, 2026 |
| EFFECT | Filing | Feb 9, 2026 | — |
| 424B3 | Prospectus | Feb 9, 2026 | — |
| CORRESP | Letter to the SEC | Feb 5, 2026 | — |
| UPLOAD | Letter from the SEC | Feb 5, 2026 | — |
| DEF 14A | Proxy statement | Jan 30, 2026 | Mar 6, 2026 |
| S-3 | Shelf registration | Jan 30, 2026 | — |
| 8-K |
Current report
Exit or restructuring costs, Regulation FD disclosure
|
Jan 29, 2026 | Jan 23, 2026 |
| PRE 14A | Preliminary proxy statement | Jan 20, 2026 | Jan 20, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 20, 2026 | Jan 19, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 12, 2026 | Jan 12, 2026 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 17, 2025 |
| 3 | Initial insider ownership | Dec 30, 2025 | Dec 17, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Officer or director change
|
Dec 17, 2025 | Dec 17, 2025 |
| 8-K |
Current report
Other events
|
Dec 5, 2025 | Dec 5, 2025 |
| 10-Q | Quarterly report | Nov 6, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 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 |
| 8-K |
Current report
Listing notice
|
Oct 3, 2025 | Oct 2, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 9, 2025 | Sep 5, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 8-K |
Current report
Officer or director change
|
Aug 13, 2025 | Aug 12, 2025 |
| 4 | Insider transaction | Aug 11, 2025 | Aug 8, 2025 |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement
|
Aug 11, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2025 | Aug 11, 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 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Jul 17, 2025 | Jul 16, 2025 |
| 8-K/A |
Amended current report
Listing notice
|
Jun 27, 2025 | Jun 18, 2025 |
| 8-K |
Current report
Listing notice
|
Jun 23, 2025 | Jun 18, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 13, 2025 | Jun 10, 2025 |
| 3 | Initial insider ownership | Jun 9, 2025 | Jun 2, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 2, 2025 | May 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 30, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 27, 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 | — |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 12, 2025 | May 12, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 8, 2025 | — |
| ARS | Annual report to shareholders | Apr 22, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 21, 2025 | — |
| DEF 14A | Proxy statement | Apr 21, 2025 | Jun 2, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 16, 2025 | Apr 10, 2025 |
| 8-K |
Current report
Listing notice, Officer or director change, Other events
|
Apr 10, 2025 | Apr 10, 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 | — |
| 10-K | Annual report | Mar 14, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 12, 2025 | Mar 12, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 12, 2025 | Mar 10, 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 |
| EFFECT | Filing | Dec 27, 2024 | — |
| CORRESP | Letter to the SEC | Dec 26, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 12, 2024 | — |
| S-3 | Shelf registration | Dec 6, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 10-Q | Quarterly report | Nov 8, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 13, 2024 |
| 4 | Insider transaction | Jun 7, 2024 | Jun 6, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 29, 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 |
| 8-K |
Current report
Shareholder vote results
|
May 14, 2024 | May 14, 2024 |
| 10-Q | Quarterly report | May 7, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 7, 2024 | May 7, 2024 |
| ARS | Annual report to shareholders | Apr 3, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 3, 2024 | — |
| DEF 14A | Proxy statement | Apr 3, 2024 | May 14, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Apr 3, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 26, 2024 | Mar 21, 2024 |
| SC 13G | Ownership over 5% (passive) | Mar 19, 2024 | — |
| 10-K | Annual report | Mar 7, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 7, 2024 | Mar 7, 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 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 5, 2024 | Jan 5, 2024 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 29, 2023 |
| 4 | Insider transaction | Jan 3, 2024 | Dec 29, 2023 |
| 10-Q | Quarterly report | Nov 7, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2023 | Nov 7, 2023 |
| SC 13G | Ownership over 5% (passive) | Aug 28, 2023 | — |
| 4 | Insider transaction | Aug 21, 2023 | Aug 17, 2023 |
| UPLOAD | Letter from the SEC | Aug 16, 2023 | — |
| CORRESP | Letter to the SEC | Aug 9, 2023 | — |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 8, 2023 |
| UPLOAD | Letter from the SEC | Jul 28, 2023 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Jun 20, 2023 | Jun 19, 2023 |
| 4 | Insider transaction | Jun 13, 2023 | Jun 11, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 30, 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 |
| 8-K |
Current report
Shareholder vote results
|
May 15, 2023 | May 15, 2023 |
| 10-Q | Quarterly report | Apr 26, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2023 | Apr 25, 2023 |
| ARS | Annual report to shareholders | Apr 7, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | Apr 5, 2023 | May 15, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 8-K |
Current report
Other events
|
Mar 13, 2023 | Mar 13, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 10, 2023 | Mar 6, 2023 |
| 10-K | Annual report | Mar 9, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2023 | Mar 9, 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 | — |
| 8-K |
Current report
Officer or director change
|
Jan 19, 2023 | Jan 18, 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 |
| 8-K/A |
Amended current report
Officer or director change
|
Jan 3, 2023 | Dec 7, 2022 |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2022 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Dec 12, 2022 | Dec 7, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 10-Q | Quarterly report | Nov 9, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2022 | Nov 8, 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 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2022 | Aug 4, 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 |
| S-8 | Employee stock plan registration | Jun 8, 2022 | — |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
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.