In the last 12 months, insiders at HARVARD BIOSCIENCE INC ($HBIO) filed 68 transactions with the SEC: 12 open-market purchases totaling $587,044 and 0 sales totaling $0. Net insider sentiment: net buying.
HARVARD BIOSCIENCE INC operates in the Laboratory analytical instruments industry (Industrial Applications and Services sector).
Most Active Insiders
- Green James W (Chief Executive Officer) — 23 transactions totaling $2,219,496
- Snider William (Director) — 3 transactions totaling $103,604
- Cote Jennifer (Chief Financial Officer) — 8 transactions totaling $93,191
- EDRICK ALAN I (Director) — 4 transactions totaling $79,290
- DENELSKY STEPHEN J (Director) — 2 transactions totaling $48,700
View all SEC Filings for HARVARD BIOSCIENCE INC (HBIO).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| March 16, 2026 | Frost Mark T | Chief Financial Officer | P | Common Stock | 5000 | $5.00 | 17,500.0000 | 44,579,665 | 40.00% | 0.01% |
| March 20, 2026 | Frost Mark T | Chief Financial Officer | A | Common Stock | 30000 | $0.00 | 47,500.0000 | 44,579,665 | 171.43% | 0.07% |
| March 20, 2026 | Duke John D | Chief Executive Officer | A | Common Stock | 75000 | $0.00 | 180,000.0000 | 44,579,665 | 71.43% | 0.17% |
| March 17, 2026 | Snider William | Director | P | Common Stock | 8475 | $4.85 | 32,000.0000 | 44,579,665 | 36.03% | 0.02% |
| March 16, 2026 | Snider William | Director | P | Common Stock | 12525 | $4.99 | 23,525.0000 | 44,579,665 | 113.86% | 0.03% |
| March 17, 2026 | DENELSKY STEPHEN J | Director | P | Common Stock | 10000 | $4.87 | 21,000.0000 | 44,579,665 | 90.91% | 0.02% |
| March 16, 2026 | Duke John D | Chief Executive Officer | P | Common Stock | 5000 | $5.01 | 105,000.0000 | 44,579,665 | 5.00% | 0.01% |
| Dec. 17, 2025 | Snider William | Director | A | Common Stock | 110000 | $0.00 | 110,000.0000 | 44,579,665 | 9999.99% | 0.25% |
| Sept. 5, 2025 | DENELSKY STEPHEN J | Director | A | Common Stock | 110000 | $0.00 | 110,000.0000 | 44,074,475 | 9999.99% | 0.25% |
| Aug. 15, 2025 | Green James W | Director | D | Common Stock | 49048 | $0.00 | 2,796,040.0000 | 44,074,475 | 1.72% | 0.11% |
| Aug. 15, 2025 | Green James W | Director | F | Common Stock | 33200 | $0.53 | 2,762,840.0000 | 44,074,475 | 1.19% | 0.08% |
| Aug. 15, 2025 | Green James W | Director | D | Common Stock | 113366 | $0.00 | 2,452,566.0000 | 44,074,475 | 4.42% | 0.26% |
| Aug. 15, 2025 | Green James W | Director | D | Common Stock | 66036 | $0.00 | 2,565,905.0000 | 44,074,475 | 2.51% | 0.15% |
| Aug. 15, 2025 | Green James W | Director | F | Common Stock | 11540 | $0.53 | 2,631,968.0000 | 44,074,475 | 0.44% | 0.03% |
| Aug. 15, 2025 | Green James W | Director | D | Common Stock | 119332 | $0.00 | 2,643,508.0000 | 44,074,475 | 4.32% | 0.27% |
| Aug. 8, 2025 | Duke John D | Chief Executive Officer | A | Common Stock | 500000 | $0.00 | 500,000.0000 | 44,074,475 | 9999.99% | 1.13% |
| Aug. 8, 2025 | Duke John D | Chief Executive Officer | A | Common Stock | 500000 | $0.00 | 1,000,000.0000 | 44,074,475 | 100.00% | 1.13% |
| July 16, 2025 | Benson Seth Benjamin | Director | A | Common Stock | 110000 | $0.00 | 110,000.0000 | 44,074,475 | 9999.99% | 0.25% |
| July 16, 2025 | Eade Katherine A. | Director | A | Common Stock | 110000 | $0.00 | 421,126.0000 | 44,074,475 | 35.36% | 0.25% |
| July 16, 2025 | Gagnon Robert E. | Director | A | Common Stock | 110000 | $0.00 | 110,000.0000 | 44,074,475 | 9999.99% | 0.25% |
| May 12, 2025 | Frost Mark T | Interim CFO | A | Common Stock | 100000 | $0.00 | 125,000.0000 | 44,074,475 | 400.00% | 0.23% |
| March 19, 2025 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 5687 | $0.69 | 159,019.0000 | 44,074,475 | 3.45% | 0.01% |
| March 19, 2025 | Green James W | Chief Executive Officer | F | Common Stock | 38413 | $0.69 | 2,845,088.0000 | 44,074,475 | 1.33% | 0.09% |
| Dec. 31, 2024 | Green James W | Chief Executive Officer | D | Common Stock | 145365 | $0.00 | 2,883,501.0000 | 43,394,509 | 4.80% | 0.33% |
| Dec. 29, 2024 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 4731 | $1.98 | 164,007.0000 | 43,394,509 | 2.80% | 0.01% |
| Dec. 29, 2024 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 3797 | $1.98 | 160,210.0000 | 43,394,509 | 2.32% | 0.01% |
| Dec. 29, 2024 | Green James W | Chief Executive Officer | F | Common Stock | 25310 | $1.98 | 3,028,866.0000 | 43,394,509 | 0.83% | 0.06% |
| Dec. 29, 2024 | Green James W | Chief Executive Officer | F | Common Stock | 56915 | $1.98 | 3,054,176.0000 | 43,394,509 | 1.83% | 0.13% |
| June 13, 2024 | Green James W | Chief Executive Officer | P | Common Stock | 10000 | $2.91 | 3,111,091.0000 | 43,394,509 | 0.32% | 0.02% |
| June 6, 2024 | Green James W | Chief Executive Officer | P | Common Stock | 20000 | $3.07 | 3,101,091.0000 | 43,394,509 | 0.65% | 0.05% |
| May 21, 2024 | Loewald Thomas W | Director | A | Common Stock | 45872 | $0.00 | 295,311.0000 | 43,394,509 | 18.39% | 0.11% |
| May 21, 2024 | LOY BERTRAND | Director | A | Common Stock | 56575 | $0.00 | 556,208.0000 | 43,394,509 | 11.32% | 0.13% |
| May 21, 2024 | EDRICK ALAN I | Director | A | Common Stock | 45872 | $0.00 | 273,911.0000 | 43,394,509 | 20.12% | 0.11% |
| May 21, 2024 | Eade Katherine A. | Director | A | Common Stock | 45872 | $0.00 | 311,126.0000 | 43,394,509 | 17.29% | 0.11% |
| March 5, 2024 | Cote Jennifer | Chief Financial Officer | A | Common Stock | 35800 | $0.00 | 178,658.0000 | 43,394,509 | 25.06% | 0.08% |
| March 5, 2024 | Cote Jennifer | Chief Financial Officer | A | Common Stock | 35800 | $0.00 | 142,858.0000 | 43,394,509 | 33.44% | 0.08% |
| March 6, 2024 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 9920 | $4.11 | 168,738.0000 | 43,394,509 | 5.55% | 0.02% |
| March 5, 2024 | Green James W | Chief Executive Officer | A | Common Stock | 214797 | $0.00 | 2,866,294.0000 | 43,394,509 | 8.10% | 0.49% |
| March 5, 2024 | Green James W | Chief Executive Officer | A | Common Stock | 214797 | $0.00 | 3,081,091.0000 | 43,394,509 | 7.49% | 0.49% |
| Dec. 29, 2023 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 2631 | $5.35 | 107,058.0000 | 0 | 2.40% | 0.00% |
| Dec. 29, 2023 | Cote Jennifer | Chief Financial Officer | F | Common Stock | 3279 | $5.35 | 109,689.0000 | 0 | 2.90% | 0.00% |
| Dec. 31, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 82790 | $5.35 | 2,651,497.0000 | 0 | 3.03% | 0.00% |
| Dec. 29, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 52206 | $5.35 | 2,734,287.0000 | 0 | 1.87% | 0.00% |
| Dec. 29, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 23216 | $5.35 | 2,786,493.0000 | 0 | 0.83% | 0.00% |
| Dec. 29, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 28783 | $5.35 | 2,809,709.0000 | 0 | 1.01% | 0.00% |
| Dec. 29, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 24187 | $5.35 | 2,838,492.0000 | 0 | 0.84% | 0.00% |
| Aug. 17, 2023 | Green James W | Chief Executive Officer | P | Common Stock | 25000 | $4.38 | 2,862,679.0000 | 0 | 0.88% | 0.00% |
| June 11, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 48373 | $5.46 | 2,837,679.0000 | 0 | 1.68% | 0.00% |
| May 22, 2023 | LOY BERTRAND | Director | A | Common Stock | 31516 | $0.00 | 499,633.0000 | 0 | 6.73% | 0.00% |
| May 22, 2023 | Eade Katherine A. | Director | A | Common Stock | 25554 | $0.00 | 265,254.0000 | 0 | 10.66% | 0.00% |
| May 22, 2023 | Loewald Thomas W | Director | A | Common Stock | 25554 | $0.00 | 249,439.0000 | 0 | 11.41% | 0.00% |
| May 22, 2023 | EDRICK ALAN I | Director | A | Common Stock | 25554 | $0.00 | 228,039.0000 | 0 | 12.62% | 0.00% |
| March 15, 2023 | EDRICK ALAN I | Director | P | Common Stock | 16192 | $2.62 | 202,485.0000 | 0 | 8.69% | 0.00% |
| March 14, 2023 | EDRICK ALAN I | Director | P | Common Stock | 13808 | $2.67 | 186,293.0000 | 0 | 8.01% | 0.00% |
| March 15, 2023 | Green James W | Chief Executive Officer | P | Common Stock | 20000 | $2.60 | 2,886,052.0000 | 0 | 0.70% | 0.00% |
| March 14, 2023 | Green James W | Chief Executive Officer | P | Common Stock | 20000 | $2.67 | 2,866,052.0000 | 0 | 0.70% | 0.00% |
| March 6, 2023 | Cote Jennifer | Interim CFO | A | Common Stock | 25862 | $0.00 | 83,088.0000 | 0 | 45.19% | 0.00% |
| March 6, 2023 | Cote Jennifer | Interim CFO | A | Common Stock | 29880 | $0.00 | 112,968.0000 | 0 | 35.96% | 0.00% |
| March 6, 2023 | Green James W | Chief Executive Officer | A | Common Stock | 339610 | $0.00 | 2,846,052.0000 | 0 | 13.55% | 0.00% |
| March 6, 2023 | Green James W | Chief Executive Officer | A | Common Stock | 353140 | $0.00 | 2,506,442.0000 | 0 | 16.40% | 0.00% |
| March 6, 2023 | Cote Jennifer | Interim CFO | A | Common Stock | 26892 | $0.00 | 57,226.0000 | 0 | 88.65% | 0.00% |
| Dec. 29, 2022 | Green James W | Chief Executive Officer | F | Common Stock | 24187 | $2.55 | 2,254,624.0000 | 0 | 1.06% | 0.00% |
| Dec. 29, 2022 | Green James W | Chief Executive Officer | F | Common Stock | 28784 | $2.55 | 2,225,840.0000 | 0 | 1.28% | 0.00% |
| Dec. 29, 2022 | Green James W | Chief Executive Officer | F | Common Stock | 23216 | $2.55 | 2,202,624.0000 | 0 | 1.04% | 0.00% |
| Jan. 1, 2023 | Green James W | Chief Executive Officer | F | Common Stock | 49322 | $2.77 | 2,153,302.0000 | 0 | 2.24% | 0.00% |
| Dec. 29, 2022 | Rossi Michael A. | Chief Financial Officer | F | Common Stock | 3162 | $2.55 | 267,338.0000 | 0 | 1.17% | 0.00% |
| Dec. 29, 2022 | Rossi Michael A. | Chief Financial Officer | F | Common Stock | 3763 | $2.55 | 263,575.0000 | 0 | 1.41% | 0.00% |
| Dec. 29, 2022 | Rossi Michael A. | Chief Financial Officer | F | Common Stock | 3035 | $2.55 | 260,540.0000 | 0 | 1.15% | 0.00% |