Insider · CIK 0001597857
Hartree Partners, LP
Files at HDSN (HUDSON TECHNOLOGIES INC /NY). First filing Jul 2, 2026, latest Sep 28, 2026.
In brief
Hartree Partners, LP files SEC Form 4 as 10% owner at HDSN (HUDSON TECHNOLOGIES INC /NY). Since Jul 2, 2026, Hartree Partners, LP has reported 10 open-market buys worth $6.6M and 0 open-market sells worth $0, the latest filed on Sep 28, 2026.
A track record needs three past buys with six months of prices behind them; Hartree Partners, LP has 0, so none is measured yet.
The newest scored trade: bought $604k of HDSN on Sep 24, 2026, filed Sep 28, 2026, scored 49 (moderate). In the last 12 months: 10 buys worth $6.6M 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.
HDSN: HUDSON TECHNOLOGIES INC /NY
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 |
|---|---|---|---|---|---|
| 49Moderate | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $604k 118,549 shares | +2% | +8% from low-48% from high | |
| 33Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $69k 13,515 shares | +0% | +7% from low-48% from high | |
| 32Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $57k 11,136 shares | +0% | +8% from low-49% from high | |
| 30Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $27k 5,317 shares | +0% | +6% from low-51% from high | |
| 39Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $553k 100,612 shares | +2% | +14% from low-47% from high | |
| 20Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $29k 5,198 shares | +0% | +16% from low-46% from high | |
| 34Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $312k 52,104 shares | +1% | +21% from low-44% from high | |
| 36Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $393k 65,550 shares | +1% | +26% from low-41% from high | |
| 20Weak | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $31k 5,234 shares | +0% | +24% from low-42% from high | |
| 43Moderate | HDSNbuy HUDSON TECHNOLOGIES INC /NY | $4.5M 764,202 shares | +18% | +19% from low-45% from high |
Transactions
Every row this insider has filed, 16 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 24, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +118,549 | $5.10 | $604k | 5,348,517 | 16 d ago |
| Sep 21, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +2,502 | $5.10 | $13k | 5,218,955 | 21 d ago |
| Sep 23, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +11,013 | $5.10 | $56k | 5,229,968 | 21 d ago |
| Sep 16, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +11,136 | $5.10 | $57k | 5,216,453 | 26 d ago |
| Sep 2, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +5,317 | $5.10 | $27k | 5,205,317 | 40 d ago |
| Aug 24, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +9,446 | $5.50 | $52k | 5,108,834 | Aug 26, 2026 |
| Aug 25, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +91,166 | $5.50 | $501k | 5,200,000 | Aug 26, 2026 |
| Aug 12, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +5,198 | $5.50 | $29k | 5,099,388 | Aug 14, 2026 |
| Jul 29, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +52,104 | $5.99 | $312k | 5,094,190 | Jul 31, 2026 |
| Jul 20, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +17,842 | $5.99 | $107k | 4,994,378 | Jul 22, 2026 |
| Jul 21, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +47,708 | $5.99 | $286k | 5,042,086 | Jul 22, 2026 |
| Jul 6, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +4,634 | $5.99 | $28k | 4,975,936 | Jul 8, 2026 |
| Jul 7, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +600 | $5.99 | $3,594 | 4,976,536 | Jul 8, 2026 |
| Jun 30, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +204,789 | $5.68 | $1.2M | 4,411,889 | Jul 2, 2026 |
| Jul 1, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +288,111 | $5.88 | $1.7M | 4,700,000 | Jul 2, 2026 |
| Jul 2, 2026 | HDSN HUDSON TECHNOLOGIES INC /NY | POpen-market purchase Common Stock, par value $0.01 | +271,302 | $5.97 | $1.6M | 4,971,302 | Jul 2, 2026 |
Questions about Hartree Partners, LP
Answered from the filings on this page, as of the latest one.
Is Hartree Partners, LP buying or selling?
In the last 12 months Hartree Partners, LP reported 10 open-market buys worth $6.6M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $604k of HDSN on Sep 24, 2026. Grants, option exercises and tax withholding are not counted.
How did Hartree Partners, LP's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Hartree Partners, LP has 0.
Where does Hartree Partners, LP file Form 4?
Hartree Partners, LP has filed Form 4 at HDSN (HUDSON TECHNOLOGIES INC /NY). 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.