HBIO
HARVARD BIOSCIENCE INC · Healthcare · Market cap $36.2M
Insiders bought $202K net in the last 90 days ·0 sellers, 4 buyers· latest Form 4 filed Apr 1, 2026
Insider Buying
$202K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Unique Insiders
4
in the rolling window
Latest filing
Jun 12, 2026
Frost Mark T
HARVARD BIOSCIENCE INC (HBIO) has 13 SEC Form 4 filings (14 transaction rows) in the rolling window, disclosed by 4 distinct insiders. Most recent filing: Jun 12, 2026.
Inside the rolling window, 4 insiders at HARVARD BIOSCIENCE INC reported 5 open-market purchases totaling $202K and no open-market sales. Insiders have net bought $202K over the trailing 6 months. The most recent open-market filing is a purchase of 5,000 shares by Chief Financial Officer Frost Mark T, dated Mar 16, 2026, worth $25K.
- Industry:Medical - Instruments & Supplies
- CEO:John D. Duke
- Employees:328
- HQ:Holliston, MA, US
- IPO:2000-12-07
| Source | |||||||
|---|---|---|---|---|---|---|---|
Frost Mark TFirst filing | Chief Financial Officer | Purchase | 5,000 | $25K | Apr 1 | +56.2% | SEC ↗ |
Snider WilliamFirst filing | Director | Purchase | 12,525 | $62K | Mar 18 | +62.9% | SEC ↗ |
Snider WilliamFirst filing | Director | Purchase | 8,475 | $41K | Mar 18 | +62.9% | SEC ↗ |
DENELSKY STEPHEN JFirst filing | Director | Purchase | 10,000 | $49K | Mar 18 | +62.9% | SEC ↗ |
Duke John DFirst filing | Chief Executive Officer | Purchase | 5,000 | $25K | Mar 17 | +63.2% | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does HBIO have?
HARVARD BIOSCIENCE INC (HBIO) has 13 SEC Form 4 filings (14 transaction rows) in the rolling 365-day window, disclosed by 4 distinct insiders. Most recent filing: Jun 12, 2026.
When was the most recent SEC Form 4 filing for HBIO?
The most recent Form 4 filing for HBIO on Tracefour is dated Jun 12, 2026.
What is the net insider flow at HBIO over the last 6 months?
Over the trailing 180 days, insiders at HBIO have net bought $202K based on SEC Form 4 disclosures.
What is the total insider buy and sell value at HBIO in the current window?
Inside the rolling window, insiders at HBIO bought $202K and sold $0 based on SEC Form 4 filings.
Can I get alerts for HBIO insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at HARVARD BIOSCIENCE INC (HBIO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
HARVARD BIOSCIENCE INC is in the Healthcare sector.