Company · CIK 0000925528 · SIC 5080 — Wholesale-Machinery, Equipment & Supplies · Nasdaq
HUDSON TECHNOLOGIES INC /NY · HDSN
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026 PForm 4 → | Sep 23, 5:03 pm EDT | Hartree Partners, LP10% Owner | 13,515 | $5.10 | $68,923 | 5,229,968 | +0.26% | |
| Sep 16, 2026 PForm 4 → | Sep 18, 4:16 pm EDT | Hartree Partners, LP10% Owner | 11,136 | $5.10 | $56,794 | 5,216,453 | +0.21% | |
| Sep 2, 2026 PForm 4 → | Sep 4, 5:43 pm EDT | Hartree Partners, LP10% Owner | 5,317 | $5.10 | $27,117 | 5,205,317 | +0.10% | |
| Aug 24, 2026 PForm 4 → | Aug 26, 5:31 pm EDT | Hartree Partners, LP10% Owner | 100,612 | $5.50 | $553,047 | 5,200,000 | +1.97% | |
| Aug 12, 2026 PForm 4 → | Aug 14, 5:10 pm EDT | Hartree Partners, LP10% Owner | 5,198 | $5.50 | $28,589 | 5,099,388 | +0.10% | |
| Jul 29, 2026 PForm 4 → | Jul 31, 4:16 pm EDT | Hartree Partners, LP10% Owner | 52,104 | $5.99 | $312,103 | 5,094,190 | +1.03% | |
| Jul 20, 2026 PForm 4 → | Jul 22, 4:29 pm EDT | Hartree Partners, LP10% Owner | 65,550 | $5.99 | $392,602 | 5,042,086 | +1.32% | |
| Jul 6, 2026 PForm 4 → | Jul 8, 5:10 pm EDT | Hartree Partners, LP10% Owner | 5,234 | $5.99 | $31,352 | 4,976,536 | +0.11% | |
| Jun 30, 2026 PForm 4 → | Jul 2, 6:00 pm EDT | Hartree Partners, LP10% Owner | 764,202 | $5.86 | $4,477,207 | 4,971,302 | +18.2% | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:21 am EDT | Alan SheriffDirector | 3,219 | — | — | 12,484 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:20 am EDT | Eric A ProutyDirector | 4,440 | — | — | 158,292 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:18 am EDT | Loan Nguyen MansyDirector | 8,881 | — | — | 34,476 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:16 am EDT | Jeffrey R FeelerDirector | 3,219 | — | — | 12,384 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 17, 2026 AForm 4 → | Jun 22, 9:21 am EDT | Alan SheriffDirector | 15,360 | — | — | 15,360 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:20 am EDT | Eric A ProutyDirector | 21,186 | — | — | 21,186 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:19 am EDT | Richard ParrilloDirector | 31,780 | — | — | 31,780 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:18 am EDT | Loan Nguyen MansyDirector | 21,186 | — | — | 21,186 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:17 am EDT | Nicole E BulgarinoDirector | 31,780 | — | — | 31,780 | — | |
| Jun 17, 2026 AForm 4 → | Jun 22, 9:16 am EDT | Jeffrey R FeelerDirector | 15,360 | — | — | 15,360 | — |