HBIO
insider transactionsHARVARD BIOSCIENCE INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
-7.8K
0 buy · 7.8K sell
Net value · 90d
-$40.7K
$0 in · $40.7K out
Sentiment · 90d
Net selling
0% buying · 100% selling
Open-market trades · 90d
1
0 buy · 7.8K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
16.6K sh
Own +52%
-
Grant·A
Director
$0
16.6K sh
Own +151%
-
Grant·A
Director
$0
16.6K sh
Own +79%
-
Grant·A
Director
$0
16.6K sh
Own +151%
-
Grant·A
Director
$0
16.6K sh
Own +39%
-
Sell·S
Robert E. Gagnon KEY
Chief Financial Officer
$40.7K
7.8K sh · $5.18
Own -1%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 9, 2026 | William Snider | Grant A | 16.6K | $0 |
| Jun 9, 2026 | Robert E. Gagnon | Grant A | 16.6K | $0 |
| Jun 9, 2026 | Stephen J Denelsky | Grant A | 16.6K | $0 |
| Jun 9, 2026 | Seth Benjamin Benson | Grant A | 16.6K | $0 |
| Jun 9, 2026 | Katherine A. Eade | Grant A | 16.6K | $0 |
| Apr 23, 2026 | Robert E. Gagnon KEY | Sell S | 7.8K | $40.7K |
About HBIO insider trading
This page tracks insider transactions for HARVARD BIOSCIENCE INC (HBIO) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.