Insider · CIK 0001204320
Stephen J Denelsky
Files at HBIO (HARVARD BIOSCIENCE INC). First filing Mar 18, 2026, latest Mar 18, 2026.
In brief
Stephen J Denelsky files SEC Form 4 as director at HBIO (HARVARD BIOSCIENCE INC). Since Mar 18, 2026, Stephen J Denelsky has reported 1 open-market buy worth $49k and 0 open-market sells worth $0, the latest filed on Mar 18, 2026.
A track record needs three past buys with six months of prices behind them; Stephen J Denelsky has 0, so none is measured yet.
The newest scored trade: bought $49k of HBIO on Mar 17, 2026, filed Mar 18, 2026, scored 55 (moderate). In the last 12 months: 1 buy worth $49k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
HBIO: HARVARD BIOSCIENCE INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 55Moderate | HARVARD BIOSCIENCE INC | $49k 10,000 shares | +91% | +74% from low-38% from high |
Transactions
Every row this insider has filed, 3 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 9, 2026 | HBIO HARVARD BIOSCIENCE INC | AGrant or award Common Stock | +16,556 | $0.00 | $0 | 37,556 | Jun 11, 2026 |
| Mar 17, 2026 | HBIO HARVARD BIOSCIENCE INC | POpen-market purchase Common Stock | +10,000 | $4.87 | $49k | 21,000 | Mar 18, 2026 |
| Sep 5, 2025 | HBIO HARVARD BIOSCIENCE INC | AGrant or award Common Stock | +110,000 | $0.00 | $0 | 110,000 | Oct 7, 2025 |
Questions about Stephen J Denelsky
Answered from the filings on this page, as of the latest one.
Is Stephen J Denelsky buying or selling?
In the last 12 months Stephen J Denelsky reported 1 open-market buy worth $49k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $49k of HBIO on Mar 17, 2026. Grants, option exercises and tax withholding are not counted.
How did Stephen J Denelsky's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Stephen J Denelsky has 0.
Where does Stephen J Denelsky file Form 4?
Stephen J Denelsky has filed Form 4 at HBIO (HARVARD BIOSCIENCE INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.