Filings under HDSN by Loronix Information Systems Inc (CIK 0000925538) from Aug 18, 2017 to Aug 18, 2017 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 2, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 5K | $5.10 | $27K |
| Aug 25, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 91K | $5.50 | $501K |
| Aug 24, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 9K | $5.50 | $52K |
| Aug 12, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 5K | $5.50 | $29K |
| Jul 29, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 52K | $5.99 | $312K |
| Jul 21, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 48K | $5.99 | $286K |
| Jul 20, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 18K | $5.99 | $107K |
| Jul 7, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 600 | $5.99 | $4K |
| Jul 6, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 5K | $5.99 | $28K |
| Jul 2, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 271K | $5.97 | $1.6M |
| Jul 1, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 288K | $5.88 | $1.7M |
| Jun 30, 2026 | Hartree Partners, LP | 10% Owner | Buy(P) | 205K | $5.68 | $1.2M |
| Jun 17, 2026 | Sheriff Alan | Director | Grant(A) | 3K | — | $0 |
| Jun 17, 2026 | Sheriff Alan | Director | Grant(A) | 15K | — | $0 |
| Jun 17, 2026 | Prouty Eric A | Director | Grant(A) | 4K | — | $0 |
| Jun 17, 2026 | Parrillo Richard | Director | Grant(A) | 32K | — | $0 |
| Jun 17, 2026 | Mansy Loan Nguyen | Director | Grant(A) | 21K | — | $0 |
| Jun 17, 2026 | Prouty Eric A | Director | Grant(A) | 21K | — | $0 |
| Jun 17, 2026 | Mansy Loan Nguyen | Director | Grant(A) | 9K | — | $0 |
| Jun 17, 2026 | Feeler Jeffrey R | Director | Grant(A) | 15K | — | $0 |
| Jun 17, 2026 | Feeler Jeffrey R | Director | Grant(A) | 3K | — | $0 |
| Jun 17, 2026 | Bulgarino Nicole E | Director | Grant(A) | 32K | — | $0 |
| May 19, 2026 | Bertaux Brian J. | Chief Financial Officer | Buy(P) | 2K | $4.87 | $10K |
| May 14, 2026 | Mansy Loan Nguyen | Director | Buy(P) | 4K | $4.96 | $18K |
| May 14, 2026 | Feeler Jeffrey R | Director | Buy(P) | 5K | $4.92 | $25K |
| May 14, 2026 | Mansy Loan Nguyen | Director | Buy(P) | 1K | $4.97 | $7K |
| May 14, 2026 | Bulgarino Nicole E | Director | Buy(P) | 550 | $4.85 | $3K |
| May 13, 2026 | Sheriff Alan | Director | Buy(P) | 5K | $4.88 | $25K |
| May 13, 2026 | Prouty Eric A | Director | Buy(P) | 5K | $4.84 | $24K |
| May 13, 2026 | Parrillo Richard | Director | Buy(P) | 10K | $4.83 | $48K |
| May 13, 2026 | Gaglione Kenneth | President and CEO, Director | Buy(P) | 5K | $4.90 | $24K |
| Apr 10, 2026 | Sheriff Alan | Director | Grant(A) | 4K | — | $0 |
| Apr 10, 2026 | Feeler Jeffrey R | Director | Grant(A) | 4K | — | $0 |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 51K | — | $0 |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 48K | $1.60 | $76K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Tax withholding(F) | 22K | $7.10 | $155K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 51K | $3.81 | $194K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Tax withholding(F) | 34K | $7.10 | $244K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 120K | $0.75 | $90K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 120K | — | $0 |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Tax withholding(F) | 45K | $7.10 | $319K |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Option exercise(M) | 48K | — | $0 |
| Dec 5, 2025 | Coleman Brian F | Insider | Sell(S) | 485K | $7.40 | $3.6M |
| Nov 24, 2025 | Gaglione Kenneth | President and CEO, Director | Grant(A) | 216K | — | $0 |
| Nov 17, 2025 | Abbatecola Vincent P | Director | Buy(P) | 4K | $6.79 | $24K |
| Sep 24, 2025 | Abbatecola Vincent P | Director | Option exercise(M) | 5K | — | $0 |
| Sep 24, 2025 | Abbatecola Vincent P | Director | Tax withholding(F) | 4K | $9.91 | $35K |
| Sep 24, 2025 | Abbatecola Vincent P | Director | Option exercise(M) | 5K | $7.35 | $35K |
| Jul 31, 2025 | Prouty Eric A | Director | Tax withholding(F) | 4K | $9.39 | $35K |
| Jul 31, 2025 | Prouty Eric A | Director | Option exercise(M) | 5K | — | $0 |
| Jul 31, 2025 | Prouty Eric A | Director | Option exercise(M) | 5K | $7.35 | $35K |
| Jun 18, 2025 | Abbatecola Vincent P | Director | Grant(A) | 14K | — | $0 |
| Jun 18, 2025 | Prouty Eric A | Director | Grant(A) | 3K | — | $0 |
| Jun 18, 2025 | Bulgarino Nicole E | Director | Grant(A) | 14K | — | $0 |
| Jun 18, 2025 | Bulgarino Nicole E | Director | Grant(A) | 3K | — | $0 |
| Jun 18, 2025 | Mansy Loan Nguyen | Director | Grant(A) | 14K | — | $0 |
| Jun 18, 2025 | Mansy Loan Nguyen | Director | Grant(A) | 6K | — | $0 |
| Jun 18, 2025 | Abbatecola Vincent P | Director | Grant(A) | 3K | — | $0 |
| Jun 18, 2025 | Parrillo Richard | Director | Grant(A) | 14K | — | $0 |
| Jun 18, 2025 | Parrillo Richard | Director | Grant(A) | 3K | — | $0 |
| Jun 18, 2025 | Prouty Eric A | Director | Grant(A) | 14K | — | $0 |
| Mar 13, 2025 | Bertaux Brian J. | VP and CFO | Grant(A) | 55K | — | $0 |
| Mar 13, 2025 | Coleman Brian F | President, CEO, Director | Grant(A) | 141K | — | $0 |
| Mar 13, 2025 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Grant(A) | 72K | — | $0 |
| Nov 7, 2024 | Abbatecola Vincent P | Director | Buy(P) | 3K | $5.98 | $15K |
| Jun 19, 2024 | Bulgarino Nicole E | Director | Grant(A) | 14K | — | $0 |
| Jun 19, 2024 | Bulgarino Nicole E | Director | Grant(A) | 4K | — | $0 |
| Jun 19, 2024 | Mansy Loan Nguyen | Director | Grant(A) | 14K | — | $0 |
| Jun 19, 2024 | Mansy Loan Nguyen | Director | Grant(A) | 6K | — | $0 |
| Jun 19, 2024 | Parrillo Richard | Director | Grant(A) | 14K | — | $0 |
| Jun 19, 2024 | Parrillo Richard | Director | Grant(A) | 3K | — | $0 |
| Jun 19, 2024 | Prouty Eric A | Director | Grant(A) | 22K | — | $0 |
| Jun 19, 2024 | Abbatecola Vincent P | Director | Grant(A) | 25K | — | $0 |
| Jun 14, 2024 | Abbatecola Vincent P | Director | Sell(S) | 10K | $9.20 | $92K |
| Jun 12, 2024 | Abbatecola Vincent P | Director | Option exercise(M) | 8K | — | $0 |
| Jun 12, 2024 | Abbatecola Vincent P | Director | Tax withholding(F) | 3K | $9.21 | $28K |
| Jun 12, 2024 | Abbatecola Vincent P | Director | Option exercise(M) | 8K | $3.40 | $28K |
| Feb 27, 2024 | Houghton Kathleen | Sr. VP-Sales and Marketing, Director | Grant(A) | 9K | — | $0 |
| Feb 27, 2024 | Coleman Brian F | President, CEO, Director | Grant(A) | 20K | — | $0 |
| Feb 27, 2024 | Krishnamurti Nat | CFO | Grant(A) | 7K | — | $0 |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 2K | $13.31 | $30K |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 55 | $13.32 | $733 |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 13K | $13.30 | $169K |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 51 | $13.27 | $677 |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 51 | $13.26 | $676 |
| Dec 14, 2023 | Parrillo Richard | Director | Sell(S) | 5K | $13.25 | $68K |
| Dec 13, 2023 | Parrillo Richard | Director | Sell(S) | 1K | $12.91 | $13K |
| Dec 13, 2023 | Parrillo Richard | Director | Sell(S) | 10K | $12.91 | $127K |
| Dec 13, 2023 | Parrillo Richard | Director | Sell(S) | 300 | $12.96 | $4K |
| Dec 13, 2023 | Parrillo Richard | Director | Sell(S) | 134 | $12.92 | $2K |
| Dec 13, 2023 | Parrillo Richard | Director | Sell(S) | 11K | $12.95 | $144K |
| Dec 12, 2023 | Parrillo Richard | Director | Sell(S) | 10K | $12.75 | $128K |
| Dec 12, 2023 | Parrillo Richard | Director | Sell(S) | 10K | $12.95 | $130K |
| Dec 12, 2023 | Parrillo Richard | Director | Sell(S) | 10K | $12.85 | $129K |
| Oct 25, 2023 | Abbatecola Vincent P | Director | Option exercise(M) | 21K | — | $0 |
| Oct 25, 2023 | Abbatecola Vincent P | Director | Tax withholding(F) | 3K | $12.96 | $40K |
| Oct 25, 2023 | Abbatecola Vincent P | Director | Option exercise(M) | 21K | $1.88 | $40K |
| Sep 12, 2023 | Gaglione Kenneth | VP-Operations | Option exercise(M) | 24K | — | $0 |
| Sep 12, 2023 | Gaglione Kenneth | VP-Operations | Option exercise(M) | 33K | — | $0 |
| Sep 12, 2023 | Gaglione Kenneth | VP-Operations | Option exercise(M) | 24K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Hudson Technologies Inc, SEC CIK 0000925528. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under HDSN and shows every filing by that issuer. Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-05. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
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