NASDAQ:HBIO

Harvard Bioscience Stock Insider Trading

Healthcare > Medical - Instruments & Supplies

Buy HBIO

*Your capital is at risk

$6.50

+0.0400 (+0.619%)

At Close: Jun 03, 2026

Harvard Bioscience Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 97.36. In total, the insiders bought 5.46M and sold 1.9M HBIO shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	97.36
● Buy	5.46M shares
● Sell	1.9M shares
56% Buy Activity Strong Positive Correlation
Buy Signal High Confidence Mar 20, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 97.36. Partially supported by a positive historical correlation. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Aug 08, 2025 Buy	Common Stock A-Award	Duke John D Chief Executive Officer	CEO / President	500 000 Value: $2.64M
Aug 08, 2025 Buy	Common Stock A-Award	Duke John D Chief Executive Officer	CEO / President	500 000 Value: $2.64M
Aug 08, 2025 Buy	Common Stock A-Award	Duke John D Chief Executive Officer	CEO / President	500 000 Value: $2.64M
Aug 08, 2025 Buy	Common Stock A-Award	Duke John D Chief Executive Officer	CEO / President	500 000 Value: $2.64M
Jul 16, 2025 Buy	Common Stock A-Award	Benson Seth Benjamin Director	Director	110 000 Value: $445.5K
Jul 16, 2025 Buy	Common Stock J-Other	Benson Seth Benjamin	Director	0 Value: $0
Jul 16, 2025 Buy	Common Stock J-Other	Benson Seth Benjamin	Director	0 Value: $0
Jul 16, 2025 Buy	Common Stock A-Award	Benson Seth Benjamin Director	Director	110 000 Value: $445.5K
Jul 16, 2025 Buy	Common Stock A-Award	Eade Katherine A. Director	Director	110 000 Value: $445.5K
Jul 16, 2025 Buy	Common Stock A-Award	Gagnon Robert E. Director	Director	110 000 Value: $445.5K
Jul 16, 2025 Buy	Common Stock J-Other	Gagnon Robert E.	Director	0 Value: $0
Jul 16, 2025 Buy	Common Stock J-Other	Gagnon Robert E.	Director	0 Value: $0
Jul 16, 2025 Buy	Common Stock A-Award	Gagnon Robert E. Director	Director	110 000 Value: $445.5K
Jul 16, 2025 Buy	Common Stock A-Award	Eade Katherine A. Director	Director	110 000 Value: $445.5K
Jun 02, 2025 Buy	Common Stock J-Other	Duke John D	Director	0 Value: $0
Jun 02, 2025 Buy	Common Stock J-Other	Duke John D	Director	0 Value: $0
May 12, 2025 Buy	Common Stock A-Award	Frost Mark T Interim CFO	C-Suite Officer	100 000 Value: $352.1K
May 12, 2025 Buy	Common Stock	Frost Mark T Interim CFO	C-Suite Officer	0 Value: $0
May 12, 2025 Buy	Common Stock	Frost Mark T Interim CFO	C-Suite Officer	0 Value: $0
May 12, 2025 Buy	Common Stock A-Award	Frost Mark T Interim CFO	C-Suite Officer	100 000 Value: $352.1K
Mar 19, 2025 Sell	Common Stock F-InKind	Cote Jennifer Chief Financial Officer	C-Suite Officer	5 687 Value: $4K
Mar 19, 2025 Sell	Common Stock F-InKind	Green James W Chief Executive Officer	CEO / President	38 413 Value: $26.5K
Mar 19, 2025 Sell	Common Stock F-InKind	Green James W Chief Executive Officer	CEO / President	38 413 Value: $26.5K
Mar 19, 2025 Sell	Common Stock F-InKind	Cote Jennifer Chief Financial Officer	C-Suite Officer	5 687 Value: $4K
Dec 31, 2024 Sell	Common Stock D-Return	Green James W Chief Executive Officer	CEO / President	145 365 Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT HARVARD BIOSCIENCE

Harvard Bioscience, Inc. develops, manufactures, and sells technologies, products, and services that enables fundamental research, discovery, and pre-clinical testing for drug development in the United States and internationally. The company offers cellular and molecular technology instruments, such as syringe and peristaltic pump products, as well as a range of instruments and accessories for tissue and organ-based lab research, including surgic...

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