HARVARD BIOSCIENCE INC (HBIO) is a publicly traded company in the Unknown sector. Across all available filings, 30 corporate insiders have executed 955 transactions totaling $38.3M, demonstrating a bearish sentiment with -$13.3M in net insider flow. The most recent transaction on Dec 17, 2025 involved a transaction of 110,000 shares valued at $0.
No significant insider buying has been recorded for HBIO in the recent period.
No significant insider selling has been recorded for HBIO in the recent period.
Based on recent SEC filings, insider sentiment for HBIO is bearish with an Insider Alignment Score of 33/100 and a net flow of -$13.3M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at HARVARD BIOSCIENCE INC (HBIO) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 30 insiders are actively trading HBIO stock, having executed 955 transactions in the past 90 days. The most active insider is David Green (Executive), who has made 284 transactions totaling $26.8M.
Get notified when executives and directors at HBIO file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Dec 17, 2025 | Snider William | Executive | Award | 110,000 | $N/A | $0 | |
| Sep 5, 2025 | J. Denelsky Stephen | Executive | Award | 110,000 | $N/A | $0 | |
| Aug 15, 2025 | W. Green James | Executive | Payment | 11,540 | $0.53 | $6.1K | |
| Aug 15, 2025 | W. Green James | Executive | Disposition | 119,332 | $N/A | $0 | |
| Aug 15, 2025 | W. Green James | Executive | Payment | 33,200 | $0.53 | $17.6K | |
| Aug 15, 2025 | W. Green James | Executive | Disposition | 49,048 | $N/A | $0 | |
| Aug 15, 2025 | W. Green James | Executive | Disposition | 66,036 | $N/A | $0 | |
| Aug 15, 2025 | W. Green James | Executive | Disposition | 113,366 | $N/A | $0 | |
| Jul 16, 2025 | E. Gagnon Robert | Executive | Award | 110,000 | $N/A | $0 | |
| Jul 16, 2025 | A. Eade Katherine | Executive | Award | 110,000 | $N/A | $0 | |
| Jul 16, 2025 | Benjamin Benson Seth | Executive | Award | 110,000 | $N/A | $0 | |
| Jun 13, 2024 | W. Green James | Executive | Purchase | 10,000 | $2.91 | $29.1K | |
| Jun 6, 2024 | W. Green James | Executive | Purchase | 20,000 | $3.07 | $61.4K | |
| May 21, 2024 | I. Edrick Alan | Executive | Award | 45,872 | $N/A | $0 | |
| May 21, 2024 | A. Eade Katherine | Executive | Award | 45,872 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 234 | $25.8M | 32.7% |
Payment(F) | 113 | $22.4M | 28.4% |
Exercise(M) | 87 | $17.5M | 22.3% |
Purchase(P) | 256 | $12.5M | 15.9% |
Disposition(D) | 13 | $385.1K | 0.5% |
Other(J) | 18 | $71.3K | 0.1% |
Award(A) | 217 | $58.5K | 0.1% |
Gift(G) | 17 | $0 | 0.0% |
Insider selling pressure at HARVARD BIOSCIENCE INC has increased, with 30 insiders executing 955 transactions across all time. Total sales of $25.8M significantly outpace purchases of $12.5M, resulting in a net outflow of $13.3M. This selling activity appears largely discretionary, which may warrant closer attention from investors.