HDSN · Hudson Technologies Inc /Ny
Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.
Insider Sentiment Score Cluster buy
Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.
| Date | Insider | Role | Type | Security | Shares |
|---|---|---|---|---|---|
| 2026-07-21 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.9850 to $5.9900, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
Common Stock, par value $0.01
|
47,708 |
| 2026-07-20 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.9850 to $5.9900, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
Common Stock, par value $0.01
|
17,842 |
| 2026-07-07 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. |
Common Stock, par value $0.01
|
600 |
| 2026-07-06 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. |
Common Stock, par value $0.01
|
4,634 |
| 2026-07-02 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.7350 to $5.9900, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
Common Stock, par value $0.01
|
271,302 |
| 2026-07-01 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.7300 to $5.9800, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
Common Stock, par value $0.01
|
288,111 |
| 2026-06-30 | Hartree Partners, LP |
10% Owner |
Buy↑
Filing footnotes — Common Stock, par value $0.01 (Direct)
The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, and this report shall not be deemed to be an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.4850 to $5.7500, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
Common Stock, par value $0.01
|
204,789 |
| 2026-06-17 | Prouty Eric A |
Director |
Award↑
|
Stock Options
|
21,186 |
| 2026-06-17 | Mansy Loan Nguyen |
Director |
Award↑
|
Common Stock
|
8,881 |
| 2026-06-17 | Sheriff Alan |
Director |
Award↑
|
Stock Options
|
15,360 |
| 2026-06-17 | Parrillo Richard |
Director |
Award↑
|
Stock Options
|
31,780 |
| 2026-06-17 | Feeler Jeffrey R |
Director |
Award↑
|
Stock Options
|
15,360 |
| 2026-06-17 | Prouty Eric A |
Director |
Award↑
|
Common Stock
|
4,440 |
| 2026-06-17 | Bulgarino Nicole E |
Director |
Award↑
|
Stock Options
|
31,780 |
| 2026-06-17 | Feeler Jeffrey R |
Director |
Award↑
|
Common Stock
|
3,219 |
| 2026-06-17 | Sheriff Alan |
Director |
Award↑
|
Common Stock
|
3,219 |
| 2026-06-17 | Mansy Loan Nguyen |
Director |
Award↑
|
Stock Options
|
21,186 |
| 2026-05-19 | Bertaux Brian J. |
VP and CFO |
Buy↑
|
Common Stock
|
2,000 |
| 2026-05-14 | Mansy Loan Nguyen |
Director |
Buy↑
|
Common Stock
|
3,600 |
| 2026-05-14 | Feeler Jeffrey R |
Director |
Buy↑
|
Common Stock
|
5,100 |
| 2026-05-14 | Bulgarino Nicole E |
Director |
Buy↑
|
Common Stock
|
550 |
| 2026-05-14 | Mansy Loan Nguyen |
Director |
Buy↑
|
Common Stock
|
1,400 |
| 2026-05-13 | Parrillo Richard |
Director |
Buy↑
|
Common Stock
|
10,000 |
| 2026-05-13 | Prouty Eric A |
Director |
Buy↑
|
Common Stock
|
5,000 |
| 2026-05-13 | Gaglione Kenneth |
Director, President and CEO |
Buy↑
|
Common Stock
(I)
|
5,000 |
| 2026-05-13 | Sheriff Alan |
Director |
Buy↑
|
Common Stock
|
5,200 |
| 2026-04-10 | Sheriff Alan |
Director |
Award↑
|
Common Stock
|
4,065 |
| 2026-04-10 | Feeler Jeffrey R |
Director |
Award↑
|
Common Stock
|
4,065 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↑
|
Common Stock
|
47,619 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↑
|
Common Stock
|
120,000 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↑
|
Common Stock
|
50,888 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Tax↓
|
Common Stock
|
21,797 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↓
|
Stock Option
|
50,888 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Tax↓
|
Common Stock
|
44,873 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↓
|
Stock Option
|
47,619 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Convert↓
|
Stock Option
|
120,000 |
| 2026-01-08 | Houghton Kathleen |
Director, Sr. VP-Sales and Marketing |
Tax↓
|
Common Stock
|
34,382 |
| 2025-12-05 | COLEMAN BRIAN F |
Director |
Sell↓
Filing footnotes — Common Stock (Direct)
Beneficial ownership following reported transaction should have been reported as 426,968, not 1,944,312. |
Common Stock
|
484,616 |
| 2025-11-24 | Gaglione Kenneth |
Director, President and CEO |
Award↑
Filing footnotes — Stock Option (Direct)
Option vests 50% on first anniversary of date of grant and 50% on second anniversary of date of grant. |
Stock Option
|
216,309 |
| 2025-11-17 | ABBATECOLA VINCENT P |
Director |
Buy↑
|
Common Stock
|
3,500 |
| 2025-09-24 | ABBATECOLA VINCENT P |
Director |
Convert↓
|
Stock Options
|
4,744 |
| 2025-09-24 | ABBATECOLA VINCENT P |
Director |
Convert↑
|
Common Stock
|
4,744 |
| 2025-09-24 | ABBATECOLA VINCENT P |
Director |
Tax↓
|
Common Stock
|
3,519 |
| 2025-07-31 | Prouty Eric A |
Director |
Tax↓
|
Common Stock
|
3,713 |
| 2025-07-31 | Prouty Eric A |
Director |
Convert↑
|
Common Stock
|
4,744 |
| 2025-07-31 | Prouty Eric A |
Director |
Convert↓
|
Stock Options
|
4,744 |
| 2025-06-18 | Parrillo Richard |
Director |
Award↑
|
Stock Options
|
13,698 |
| 2025-06-18 | ABBATECOLA VINCENT P |
Director |
Award↑
|
Common Stock
|
3,182 |
| 2025-06-18 | ABBATECOLA VINCENT P |
Director |
Award↑
|
Stock Options
|
13,698 |
| 2025-06-18 | Mansy Loan Nguyen |
Director |
Award↑
|
Stock Options
|
13,698 |