HDSN
Hudson Technologies, Inc.$5.17-0.18 (-3.47%)Prev Close$5.33·MCap$225.1M·P/E16.78·Vol284.9K·Yield—
▲
Buys (12M)
17
$6.06M
▼
Sells (12M)
3
$4.34M
◆
Net Activity
Net Buyer
$1.71M
●
Active Insiders
13
last 12 mo
Over the past 12 months, insider activity at Hudson Technologies, Inc. (HDSN) has been mixed between buying and selling, with 17 insider purchases totaling $6.06M and 3 insider sales totaling $4.34M. The most recent insider transaction was by Hartree Partners, LP (10 percent owner), who purchased $27.1K worth of shares on Sep 4, 2026. Hudson Technologies, Inc. operates in the Basic Materials sector, within the Chemicals - Specialty industry, with a market cap of $225.1M.
HDSN Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,317 | $5.10 | $27.1K | 5,205,317 |
| Aug 26, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 100,612 | $5.50 | $553.0K | 5,200,000 |
| Aug 14, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,198 | $5.50 | $28.6K | 5,099,388 |
| Jul 31, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 52,104 | $5.99 | $312.1K | 5,094,190 |
| Jul 22, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 65,550 | $5.99 | $392.6K | 5,042,086 |
| Jul 8, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,234 | $5.99 | $31.4K | 4,976,536 |
| Jul 2, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 764,202 | $5.86 | $4.48M1.8% OS | 4,971,302 |
| May 21, 2026 | Bertaux Brian J. | officer: Chief Financial Officer | Buy | 2,000 | $4.87 | $9.7K | 2,000 |
| May 21, 2026 | Parrillo Richard | director | Buy | 10,000 | $4.83 | $48.3K | 195,746 |
| May 15, 2026 | Gaglione Kenneth | director, officer: President and CEO | Buy | 5,000 | $4.90 | $24.5K | 5,000 |
| May 15, 2026 | Bulgarino Nicole E | director | Buy | 550 | $4.85 | $2.7K | 11,048 |
| May 15, 2026 | Sheriff Alan | director | Buy | 5,200 | $4.88 | $25.4K | 9,265+128% |
| May 15, 2026 | Feeler Jeffrey R | director | Buy | 5,100 | $4.92 | $25.1K | 9,165+125% |
| May 15, 2026 | Prouty Eric A | director | Buy | 5,000 | $4.84 | $24.2K | 153,852 |
| May 15, 2026 | Mansy Loan Nguyen | director | Buy | 5,000 | $4.96 | $24.8K | 25,595 |
| May 15, 2026 | Parrillo Richard | director | Buy | 5,000 | $4.96 | $24.8K | 25,595 |
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing | Sell | 101,052 | $7.10 | $717.5K | 0 |
| Dec 5, 2025 | COLEMAN BRIAN F | Director | Sell | 484,616 | $7.40 | $3.59M1.1% OS | 0 |
| Nov 17, 2025 | ABBATECOLA VINCENT P | Director | Buy | 3,500 | $6.79 | $23.7K | 0 |
| Sep 24, 2025 | ABBATECOLA VINCENT P | Director | Sell | 3,519 | $9.91 | $34.9K | 0 |
| Jul 31, 2025 | Prouty Eric A | Director | Sell | 3,713 | $9.39 | $34.9K | 0 |
| Dec 14, 2022 | Gaglione Kenneth | VP-Operations | Sell | 19,000 | $11.53 | $219.1K | 3,207-86% |
| Nov 10, 2022 | Krishnamurti Nat | CFO | Sell | 91,194 | $10.39 | $947.6K | 71,401-56% |
| Jun 17, 2022 | ABBATECOLA VINCENT P | Director | Sell | 20,000 | $9.75 | $194.9K | 125,578 |
| Jun 6, 2022 | ABBATECOLA VINCENT P | Director | Sell | 20,000 | $9.79 | $195.8K | 145,578 |
| May 31, 2022 | MANDRACCHIA STEPHEN P | Director | Sell | 150,000 | $9.71 | $1.46M | 463,541 |
| May 9, 2022 | Prouty Eric A | Director | Sell | 75,000 | $9.00 | $675.0K | 123,169-38% |
| Mar 14, 2022 | MANDRACCHIA STEPHEN P | Director | Sell | 200,000 | $5.77 | $1.15M | 531,756-27% |
| Jan 18, 2022 | ABBATECOLA VINCENT P | Director | Sell | 68,320 | $3.93 | $268.8K | 163,297-29% |
| Nov 19, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 107,900 | $4.71 | $507.8K | 649,336 |
| Nov 17, 2021 | Krishnamurti Nat | CFO | Sell | 200,000 | $4.76 | $952.0K | 25,207-89% |
| Aug 18, 2021 | COLEMAN BRIAN F | President, CEO | Buy | 25,000 | $2.89 | $72.3K | 520,019 |
| Aug 9, 2021 | MORCH OTTO C | Director | Sell | 57,211 | $3.20 | $182.9K | 37,085-61% |
| Jun 11, 2021 | Houghton Kathleen | VP - Sales and Marketing | Sell | 13,315 | $2.90 | $38.6K | 53,222 |
| Jun 3, 2021 | MORCH OTTO C | Director | Sell | 13,262 | $2.95 | $39.2K | 37,085-26% |
| Jun 2, 2021 | ABBATECOLA VINCENT P | Director | Sell | 16,298 | $2.95 | $48.1K | 116,928 |
| Jun 2, 2021 | Houghton Kathleen | VP - Sales and Marketing | Sell | 3,582 | $3.00 | $10.7K | 1,300-73% |
| May 27, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 200,000 | $2.40 | $479.3K | 631,111 |
| Mar 15, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 100,000 | $1.57 | $157.0K | 715,884 |
HDSN Insider Buying Activity
The following table shows recent insider purchases of Hudson Technologies, Inc. (HDSN) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,317 | $5.10 | $27.1K | 5,205,317 |
| Aug 26, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 100,612 | $5.50 | $553.0K | 5,200,000 |
| Aug 14, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,198 | $5.50 | $28.6K | 5,099,388 |
| Jul 31, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 52,104 | $5.99 | $312.1K | 5,094,190 |
| Jul 22, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 65,550 | $5.99 | $392.6K | 5,042,086 |
| Jul 8, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 5,234 | $5.99 | $31.4K | 4,976,536 |
| Jul 2, 2026 | Hartree Partners, LP | 10 percent owner | Buy | 764,202 | $5.86 | $4.48M1.8% OS | 4,971,302 |
| May 21, 2026 | Bertaux Brian J. | officer: Chief Financial Officer | Buy | 2,000 | $4.87 | $9.7K | 2,000 |
| May 21, 2026 | Parrillo Richard | director | Buy | 10,000 | $4.83 | $48.3K | 195,746 |
| May 15, 2026 | Gaglione Kenneth | director, officer: President and CEO | Buy | 5,000 | $4.90 | $24.5K | 5,000 |
| May 15, 2026 | Bulgarino Nicole E | director | Buy | 550 | $4.85 | $2.7K | 11,048 |
| May 15, 2026 | Sheriff Alan | director | Buy | 5,200 | $4.88 | $25.4K | 9,265+128% |
| May 15, 2026 | Feeler Jeffrey R | director | Buy | 5,100 | $4.92 | $25.1K | 9,165+125% |
| May 15, 2026 | Prouty Eric A | director | Buy | 5,000 | $4.84 | $24.2K | 153,852 |
| May 15, 2026 | Mansy Loan Nguyen | director | Buy | 5,000 | $4.96 | $24.8K | 25,595 |
| May 15, 2026 | Parrillo Richard | director | Buy | 5,000 | $4.96 | $24.8K | 25,595 |
| Nov 17, 2025 | ABBATECOLA VINCENT P | Director | Buy | 3,500 | $6.79 | $23.7K | 0 |
| Aug 18, 2021 | COLEMAN BRIAN F | President, CEO | Buy | 25,000 | $2.89 | $72.3K | 520,019 |
HDSN Insider Selling Activity
The following table shows recent insider sales of Hudson Technologies, Inc. (HDSN) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jan 8, 2026 | Houghton Kathleen | Sr. VP-Sales and Marketing | Sell | 101,052 | $7.10 | $717.5K | 0 |
| Dec 5, 2025 | COLEMAN BRIAN F | Director | Sell | 484,616 | $7.40 | $3.59M1.1% OS | 0 |
| Sep 24, 2025 | ABBATECOLA VINCENT P | Director | Sell | 3,519 | $9.91 | $34.9K | 0 |
| Jul 31, 2025 | Prouty Eric A | Director | Sell | 3,713 | $9.39 | $34.9K | 0 |
| Dec 14, 2022 | Gaglione Kenneth | VP-Operations | Sell | 19,000 | $11.53 | $219.1K | 3,207-86% |
| Nov 10, 2022 | Krishnamurti Nat | CFO | Sell | 91,194 | $10.39 | $947.6K | 71,401-56% |
| Jun 17, 2022 | ABBATECOLA VINCENT P | Director | Sell | 20,000 | $9.75 | $194.9K | 125,578 |
| Jun 6, 2022 | ABBATECOLA VINCENT P | Director | Sell | 20,000 | $9.79 | $195.8K | 145,578 |
| May 31, 2022 | MANDRACCHIA STEPHEN P | Director | Sell | 150,000 | $9.71 | $1.46M | 463,541 |
| May 9, 2022 | Prouty Eric A | Director | Sell | 75,000 | $9.00 | $675.0K | 123,169-38% |
| Mar 14, 2022 | MANDRACCHIA STEPHEN P | Director | Sell | 200,000 | $5.77 | $1.15M | 531,756-27% |
| Jan 18, 2022 | ABBATECOLA VINCENT P | Director | Sell | 68,320 | $3.93 | $268.8K | 163,297-29% |
| Nov 19, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 107,900 | $4.71 | $507.8K | 649,336 |
| Nov 17, 2021 | Krishnamurti Nat | CFO | Sell | 200,000 | $4.76 | $952.0K | 25,207-89% |
| Aug 9, 2021 | MORCH OTTO C | Director | Sell | 57,211 | $3.20 | $182.9K | 37,085-61% |
| Jun 11, 2021 | Houghton Kathleen | VP - Sales and Marketing | Sell | 13,315 | $2.90 | $38.6K | 53,222 |
| Jun 3, 2021 | MORCH OTTO C | Director | Sell | 13,262 | $2.95 | $39.2K | 37,085-26% |
| Jun 2, 2021 | ABBATECOLA VINCENT P | Director | Sell | 16,298 | $2.95 | $48.1K | 116,928 |
| Jun 2, 2021 | Houghton Kathleen | VP - Sales and Marketing | Sell | 3,582 | $3.00 | $10.7K | 1,300-73% |
| May 27, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 200,000 | $2.40 | $479.3K | 631,111 |
| Mar 15, 2021 | MANDRACCHIA STEPHEN P | Director | Sell | 100,000 | $1.57 | $157.0K | 715,884 |
HDSN Insiders
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