12 insiders reported 44 Form 4 transactions for HUDSON TECHNOLOGIES INC /NY (HDSN) over the past 18 months (most recent 2026-08-14). Recent activity: Hartree Partners, LP (10% Owner) Buy 5,198 shares, Hartree Partners, LP (10% Owner) Buy 52,104 shares, Hartree Partners, LP (10% Owner) Buy 17,842 shares, Hartree Partners, LP (10% Owner) Buy 47,708 shares, Hartree Partners, LP (10% Owner) Buy 4,634 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Hartree Partners, LP | 10% Owner | Buy | 5,198 | $28,589 |
| 2026-07-31 | Hartree Partners, LP | 10% Owner | Buy | 52,104 | $312,103 |
| 2026-07-22 | Hartree Partners, LP | 10% Owner | Buy | 17,842 | $106,859 |
| 2026-07-22 | Hartree Partners, LP | 10% Owner | Buy | 47,708 | $285,742 |
| 2026-07-08 | Hartree Partners, LP | 10% Owner | Buy | 4,634 | $27,758 |
| 2026-07-08 | Hartree Partners, LP | 10% Owner | Buy | 600 | $3,594 |
| 2026-07-02 | Hartree Partners, LP | 10% Owner | Buy | 204,789 | $1.2M |
| 2026-07-02 | Hartree Partners, LP | 10% Owner | Buy | 288,111 | $1.7M |
| 2026-07-02 | Hartree Partners, LP | 10% Owner | Buy | 271,302 | $1.6M |
| 2026-06-22 | Mansy Loan Nguyen | Director | Buy | 8,881 | $0 |
| 2026-06-22 | Prouty Eric A | Director | Buy | 4,440 | $0 |
| 2026-06-22 | Sheriff Alan | Director | Buy | 3,219 | $0 |
| 2026-06-22 | Feeler Jeffrey R | Director | Buy | 3,219 | $0 |
| 2026-05-21 | Parrillo Richard | Director | Buy | 10,000 | $48,257 |
| 2026-05-21 | Bertaux Brian J. | Chief Financial Officer | Buy | 2,000 | $9,740 |
| 2026-05-15 | Feeler Jeffrey R | Director | Buy | 5,100 | $25,092 |
| 2026-05-15 | Prouty Eric A | Director | Buy | 5,000 | $24,200 |
| 2026-05-15 | Parrillo Richard | Director | Buy | 3,600 | $17,856 |
| 2026-05-15 | Bulgarino Nicole E | Director | Buy | 550 | $2,665 |
| 2026-05-15 | Sheriff Alan | Director | Buy | 5,200 | $25,350 |
| 2026-05-15 | Gaglione Kenneth | President and CEO | Buy | 5,000 | $24,475 |
| 2026-05-15 | Mansy Loan Nguyen | Director | Buy | 3,600 | $17,856 |
| 2026-05-15 | Parrillo Richard | Director | Buy | 1,400 | $6,958 |
| 2026-05-15 | Mansy Loan Nguyen | Director | Buy | 1,400 | $6,958 |
| 2026-04-14 | Feeler Jeffrey R | Director | Buy | 4,065 | $0 |
Source: SEC Form 4 filings · as of 2026-08-14