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
Mar 20, 2026 Buy	Common Stock A-Award	Frost Mark T Chief Financial Officer	C-Suite Officer	30 000 Value: $158.1K
Mar 20, 2026 Buy	Common Stock A-Award	Duke John D Chief Executive Officer	CEO / President	75 000 Value: $395.3K
Mar 17, 2026 Buy	Common Stock P-Purchase	Denelsky Stephen J Director	Director	10 000 Value: $48.7K
Mar 17, 2026 Buy	Common Stock P-Purchase	Snider William Director	Director	8 475 Value: $41.1K
Mar 16, 2026 Buy	Common Stock P-Purchase	Frost Mark T Chief Financial Officer	C-Suite Officer	5 000 Value: $25.0K
Mar 16, 2026 Buy	Common Stock P-Purchase	Snider William Director	Director	12 525 Value: $62.5K
Mar 16, 2026 Buy	Common Stock P-Purchase	Duke John D Chief Executive Officer	CEO / President	5 000 Value: $25.1K
Dec 17, 2025 Buy	Common Stock A-Award	Snider William Director	Director	110 000 Value: $865.7K
Dec 17, 2025 Buy	Warrant (right to buy)	Snider William Director	Director	600 000 Value: $300.0K
Sep 05, 2025 Buy	Common Stock A-Award	Denelsky Stephen J Director	Director	110 000 Value: $526.0K
Sep 05, 2025 Buy	Common Stock J-Other	Denelsky Stephen J	Director	0 Value: $0
Sep 05, 2025 Buy	Common Stock J-Other	Denelsky Stephen J	Director	0 Value: $0
Sep 05, 2025 Buy	Common Stock A-Award	Denelsky Stephen J Director	Director	110 000 Value: $526.0K
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	49 048 Value: $0
Aug 15, 2025 Sell	Common Stock F-InKind	Green James W Director	Director	33 200 Value: $17.6K
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	119 332 Value: $0
Aug 15, 2025 Sell	Common Stock F-InKind	Green James W Director	Director	11 540 Value: $6K
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	66 036 Value: $0
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	113 366 Value: $0
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	113 366 Value: $0
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	66 036 Value: $0
Aug 15, 2025 Sell	Common Stock F-InKind	Green James W Director	Director	11 540 Value: $6K
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	119 332 Value: $0
Aug 15, 2025 Sell	Common Stock F-InKind	Green James W Director	Director	33 200 Value: $17.6K
Aug 15, 2025 Sell	Common Stock D-Return	Green James W Director	Director	49 048 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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