HBIO insider transaction filings
HARVARD BIOSCIENCE INC — 34 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-06-12. Screen HBIO transaction legs live →
Insider transaction summary — last 90 days
No Form 4 filings for HBIO between 2026-06-25 and 2026-09-23. The table below lists the most recent filings on record.
Recent Form 4 filings — HARVARD BIOSCIENCE INC
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-12 | 4 | Eade Katherine A. — Director | Grant/award (A): 16,556 @ $0 | EDGAR |
| 2026-06-11 | 4 | Snider William — Director | Grant/award (A): 16,556 @ $0 | EDGAR |
| 2026-06-11 | 4 | DENELSKY STEPHEN J — Director | Grant/award (A): 16,556 @ $0 | EDGAR |
| 2026-06-11 | 4 | Gagnon Robert E. — Director | Grant/award (A): 16,556 @ $0 | EDGAR |
| 2026-06-11 | 4 | Benson Seth Benjamin — Director | Grant/award (A): 16,556 @ $0 | EDGAR |
| 2026-04-01 | 4 | Frost Mark T — Chief Financial Officer | Grant/award (A): 30,000 @ $0 | EDGAR |
| 2026-04-01 | 4 | Frost Mark T — Chief Financial Officer | Purchase (P): 5,000 @ $5 | EDGAR |
| 2026-03-23 | 4 | Duke John D — Chief Executive Officer, Director | Grant/award (A): 75,000 @ $0 | EDGAR |
| 2026-03-18 | 4 | DENELSKY STEPHEN J — Director | Purchase (P): 10,000 @ $4.87 | EDGAR |
| 2026-03-18 | 4 | Snider William — Director | Purchase (P): 12,525 @ $4.99 · Purchase (P): 8,475 @ $4.85 | EDGAR |
| 2026-03-17 | 4 | Duke John D — Chief Executive Officer, Director | Purchase (P): 5,000 @ $5.01 | EDGAR |
| 2025-12-30 | 4 | Snider William — Director | Grant/award (A): 110,000 @ $0 | EDGAR |
| 2025-10-07 | 4 | DENELSKY STEPHEN J — Director | Grant/award (A): 110,000 @ $0 | EDGAR |
| 2025-08-19 | 4 | Green James W — Director | Disposition to issuer (D): 49,048 @ $0 · Tax withholding (F): 33,200 @ $0.53 · Disposition to issuer (D): 119,332 @ $0 · Tax withholding (F): 11,540 @ $0.53 · Disposition to issuer (D): 66,036 @ $0 · Disposition to issuer (D): 113,366 @ $0 | EDGAR |
| 2025-08-11 | 4 | Duke John D — Chief Executive Officer, Director | Grant/award (A): 500,000 @ $0 · Grant/award (A): 500,000 @ $0 | EDGAR |
| 2025-07-25 | 4 | Benson Seth Benjamin — Director | Grant/award (A): 110,000 @ $0 | EDGAR |
| 2025-07-18 | 4 | Eade Katherine A. — Director | Grant/award (A): 110,000 @ $0 | EDGAR |
| 2025-07-18 | 4 | Gagnon Robert E. — Director | Grant/award (A): 110,000 @ $0 | EDGAR |
| 2025-05-14 | 4 | Frost Mark T — Interim CFO | Grant/award (A): 100,000 @ $0 | EDGAR |
| 2025-03-21 | 4 | Cote Jennifer — Chief Financial Officer | Tax withholding (F): 5,687 @ $0.69 | EDGAR |
| 2025-03-21 | 4 | Green James W — Chief Executive Officer, Director | Tax withholding (F): 38,413 @ $0.69 | EDGAR |
| 2025-01-03 | 4 | Green James W — Chief Executive Officer, Director | Disposition to issuer (D): 145,365 @ $0 | EDGAR |
| 2024-12-31 | 4 | Green James W — Chief Executive Officer, Director | Tax withholding (F): 56,915 @ $1.98 · Tax withholding (F): 25,310 @ $1.98 | EDGAR |
| 2024-12-31 | 4 | Cote Jennifer — Chief Financial Officer | Tax withholding (F): 4,731 @ $1.98 · Tax withholding (F): 3,797 @ $1.98 | EDGAR |
| 2024-06-14 | 4 | Green James W — Chief Executive Officer, Director | Purchase (P): 10,000 @ $2.91 | EDGAR |
| 2024-06-07 | 4 | Green James W — Chief Executive Officer, Director | Purchase (P): 20,000 @ $3.07 | EDGAR |
| 2024-05-23 | 4 | LOY BERTRAND — Director | Grant/award (A): 56,575 @ $0 | EDGAR |
| 2024-05-23 | 4 | Loewald Thomas W — Director | Grant/award (A): 45,872 @ $0 | EDGAR |
| 2024-05-23 | 4 | Eade Katherine A. — Director | Grant/award (A): 45,872 @ $0 | EDGAR |
| 2024-05-23 | 4 | EDRICK ALAN I — Director | Grant/award (A): 45,872 @ $0 | EDGAR |
| 2024-03-07 | 4 | Cote Jennifer — Chief Financial Officer | Grant/award (A): 35,800 @ $0 · Grant/award (A): 35,800 @ $0 · Tax withholding (F): 9,920 @ $4.11 | EDGAR |
| 2024-03-07 | 4 | Green James W — Chief Executive Officer, Director | Grant/award (A): 214,797 @ $0 · Grant/award (A): 214,797 @ $0 | EDGAR |
| 2024-01-03 | 4 | Green James W — Chief Executive Officer, Director | Tax withholding (F): 24,187 @ $5.35 · Tax withholding (F): 28,783 @ $5.35 · Tax withholding (F): 23,216 @ $5.35 · Tax withholding (F): 52,206 @ $5.35 · Tax withholding (F): 82,790 @ $5.35 | EDGAR |
| 2024-01-03 | 4 | Cote Jennifer — Chief Financial Officer, Director | Tax withholding (F): 3,279 @ $5.35 · Tax withholding (F): 2,631 @ $5.35 | EDGAR |
Recent 8-K events — HARVARD BIOSCIENCE INC
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-11 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-08-11 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-02 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-12 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-17 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-10 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-06 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
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