Hartree Partners, LP bought $69k of HDSN
owner at HUDSON TECHNOLOGIES INC /NY. 13,515 shares at an average of $5.10, traded Sep 21, 2026, filed Sep 23, 2026.
Score components
- +12Role10% owner
- +8Trade size$69k at market
- -5Relative to holdingsUnder 1% of holdings (0.3%)
- +18Price context7% above the 52-week low; 48% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- +5Repeat buying3 buys in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
- -5Outside holderA 10% owner who is not an officer or director
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000921895-26-002633, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | POpen-market purchase Common Stock, par value $0.01 | +2,502 | $5.10 | $13k | 5,218,955 | 20 d ago |
| Sep 23, 2026 | POpen-market purchase Common Stock, par value $0.01 | +11,013 | $5.10 | $56k | 5,229,968 | 20 d ago |
Related signals
Other insiders at HUDSON TECHNOLOGIES INC /NY and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 49Moderate | HDSNbuy HUDSON TECHNOLOGIES INC /NY | Hartree Partners, LP owner | $604k 118,549 shares | +2% | |
| 32Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | Hartree Partners, LP owner | $57k 11,136 shares | +0% | |
| 25Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | Hartree Partners, LP owner | $27k 5,317 shares | +0% | |
| 63Notable | HUDSON TECHNOLOGIES INC /NY | Brian J. Bertaux Chief Financial Officer | $9,740 2,000 shares | - | |
| 51Moderate | HUDSON TECHNOLOGIES INC /NY | Nicole E Bulgarino director | $2,665 550 shares | +5% | |
| 63Notable | HUDSON TECHNOLOGIES INC /NY | Jeffrey R Feeler director | $25k 5,100 shares | +125% | |
| 66Notable | HUDSON TECHNOLOGIES INC /NY | Kenneth Gaglione President and CEO | $24k 5,000 shares | - | |
| 63Notable | HUDSON TECHNOLOGIES INC /NY | Alan Sheriff director | $25k 5,200 shares | +128% | |
| 48Moderate | HUDSON TECHNOLOGIES INC /NY | Eric A Prouty director | $24k 5,000 shares | +3% | |
| 54Moderate | HUDSON TECHNOLOGIES INC /NY | Richard Parrillo director | $25k 5,000 shares | +24% |
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.