HUDSON TECHNOLOGIES INC /NY insider trading
HDSN$5.23-0.02 (-0.38%)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-44.9%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- HPHartree Partners, LP12.7078%
- BFBrian F. Coleman1.0145%
- RPRichard Parrillo0.4651%
- VPVincent P. Abbatecola0.4033%
- KHKathleen Houghton0.3769%
- EAEric A. Prouty0.3761%
- RSRobert Stoody0.1664%
- KGKenneth Gaglione0.101%
- LNLoan Nguyen Mansy0.0819%
- ASAlan Sheriff0.0297%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| HDSN | Hartree Partners, LP | Open market purchase$604K | +2.3% | $5.10 | $604K | Sep 24, 2026 | Sep 28, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$56.2K | +0.2% | $5.10 | $56.2K | Sep 23, 2026 | Sep 23, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$12.8K | +0.1% | $5.10 | $12.8K | Sep 21, 2026 | Sep 23, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$56.8K | +0.2% | $5.10 | $56.8K | Sep 16, 2026 | Sep 18, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$27.1K | +0.1% | $5.10 | $27.1K | Sep 2, 2026 | Sep 4, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$501K | +1.8% | $5.50 | $501K | Aug 25, 2026 | Aug 26, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$52K | +0.2% | $5.50 | $52K | Aug 24, 2026 | Aug 26, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$28.6K | +0.1% | $5.50 | $28.6K | Aug 12, 2026 | Aug 14, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$312K | +1.0% | $5.99 | $312K | Jul 29, 2026 | Jul 31, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$286K | +1.0% | $5.99 | $286K | Jul 21, 2026 | Jul 22, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$107K | +0.4% | $5.99 | $107K | Jul 20, 2026 | Jul 22, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$3.59K | 0.0% | $5.99 | $3.59K | Jul 7, 2026 | Jul 8, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$27.8K | +0.1% | $5.99 | $27.8K | Jul 6, 2026 | Jul 8, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$1.62M | +5.8% | $5.97 | $1.62M | Jul 2, 2026 | Jul 2, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$1.7M | +6.5% | $5.88 | $1.7M | Jul 1, 2026 | Jul 2, 2026 |
| HDSN | Hartree Partners, LP | Open market purchase$1.16M | +4.9% | $5.68 | $1.16M | Jun 30, 2026 | Jul 2, 2026 |
| HDSN | Brian J. Bertaux | Open market purchase$9.74K | Not reported | $4.87 | $9.74K | May 19, 2026 | May 21, 2026 |
| HDSN | Loan Nguyen Mansy | Open market purchase$6.96K | +5.8% | $4.97 | $6.96K | May 14, 2026 | May 15, 2026 |
| HDSN | Loan Nguyen Mansy | Open market purchase$17.9K | +17.5% | $4.96 | $17.9K | May 14, 2026 | May 15, 2026 |
| HDSN | Richard Parrillo | Open market purchase$6.96K | +5.8% | $4.97 | $6.96K | May 14, 2026 | May 15, 2026 |
| HDSN | Richard Parrillo | Open market purchase$17.9K | +17.5% | $4.96 | $17.9K | May 14, 2026 | May 15, 2026 |
| HDSN | Nicole E. Bulgarino | Open market purchase$2.67K | +5.2% | $4.85 | $2.67K | May 14, 2026 | May 15, 2026 |
| HDSN | Jeffrey R. Feeler | Open market purchase$25.1K | +125.5% | $4.92 | $25.1K | May 14, 2026 | May 15, 2026 |
| HDSN | Richard Parrillo | Open market purchase$48.3K | +5.4% | $4.83 | $48.3K | May 13, 2026 | May 21, 2026 |
| HDSN | Eric A. Prouty | Open market purchase$24.2K | +3.4% | $4.84 | $24.2K | May 13, 2026 | May 15, 2026 |
| HDSN | Alan Sheriff | Open market purchase$25.4K | +127.9% | $4.88 | $25.4K | May 13, 2026 | May 15, 2026 |
| HDSN | Kenneth Gaglione | Open market purchase$24.5K | +13.3% | $4.90 | $24.5K | May 13, 2026 | May 15, 2026 |
| HDSN | Brian F. Coleman | Open market sell$3.59M | -53.2% | $7.40 | $3.59M | Dec 5, 2025 | Dec 15, 2025 |
| HDSN | Vincent P. Abbatecola | Open market purchase$23.8K | +2.1% | $6.79 | $23.8K | Nov 17, 2025 | Nov 18, 2025 |