HDSN · ISSUER CIK 925528
HUDSON TECHNOLOGIES INC /NY
Between Jul 31, 2026 and Oct 28, 2026, 1 HUDSON TECHNOLOGIES INC /NY insiders reported $1.7M of open-market purchases and $0.00 of sales on SEC Form 4. The largest buyer was Hartree Partners, LP (10% Owner), with $1.7M.
↗1 insiders filed
Original Form 4 filings from Jul 31, 2026 to Oct 28, 2026. No open-market sales in the window.
$1.7MInsider buying
$0.00Insider selling
+$1.7MNet open-market
Sep 28, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 28, 202616:25 | Sep 24, 2026 | HDSN | 10% Owner | P · Buy | $5.10 | +118,549 | 5,348,517 | +2% | +$604K | -20.9% | +2.6% |
| Sep 23, 202617:03 | Sep 23, 2026from Sep 21, 2026 | HDSN | 10% Owner | P · Buy | $5.10 | +13,515 | 5,229,968 | +0% | +$69K | -20.9% | +2.6% |
| Sep 18, 202616:16 | Sep 16, 2026 | HDSN | 10% Owner | P · Buy | $5.10 | +11,136 | 5,216,453 | +0% | +$57K | -20.9% | +2.5% |
| Sep 4, 202617:43 | Sep 2, 2026 | HDSN | 10% Owner | P · Buy | $5.10 | +5,317 | 5,205,317 | +0% | +$27K | -20.9% | +2.5% |
| Aug 26, 202617:31 | Aug 25, 2026from Aug 24, 2026 | HDSN | 10% Owner | P · Buy | $5.50 | +100,612 | 5,200,000 | +2% | +$553K | -14.8% | -4.9% |
| Aug 14, 202617:10 | Aug 12, 2026 | HDSN | 10% Owner | P · Buy | $5.50 | +5,198 | 5,099,388 | +0% | +$29K | -14.7% | -4.9% |
| Jul 31, 202616:16 | Jul 29, 2026 | HDSN | 10% Owner | P · Buy | $5.99 | +52,104 | 5,094,190 | +1% | +$312K | -8.4% | -12.7% |