HDSN

Hudson Technologies, Inc.$5.75+0.15 (+2.77%)

Prev Close$5.59·MCap$225.5M·P/E18.53·Vol303.8K·Yield—

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Buys (12M)

$233.2K

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Sells (12M)

$4.38M

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Net Activity

Net Seller

$4.14M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Hudson Technologies, Inc. (HDSN) has been dominated by selling, with 10 insider purchases totaling $233.2K and 4 insider sales totaling $4.38M. The most recent insider transaction was by Bertaux Brian J. (officer: Chief Financial Officer), who purchased $9.7K worth of shares on May 21, 2026. Hudson Technologies, Inc. operates in the Basic Materials sector, within the Chemicals - Specialty industry, with a market cap of $225.5M.

HDSN Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
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
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