HUDSON TECHNOLOGIES INC /NY

HDSNNASDAQ

$5.23-0.02 (-0.38%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

HUDSON TECHNOLOGIES INC /NY price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-44.9%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Hartree Partners, LP	10.48%	$25.3M	5.40%	Add 16.10%
Westerly Capital Management, LLC	8.03%	$19.4M	3.58%	Add 6.46%
BlackRock, Inc.	6.75%	$16.3M	0.00%	Not reported
Dimensional Fund Advisors LP	4.68%	$11.3M	0.00%	Not reported
Vanguard Capital Management LLC	3.93%	$9.5M	0.00%	Not reported
Renaissance Technologies LLC	3.43%	$8.28M	0.01%	Not reported
American Century Companies Inc	2.78%	$6.71M	0.00%	Not reported
Geode Capital Management, LLC	2.36%	$5.71M	0.00%	Not reported
State Street Corp	2.13%	$5.14M	0.00%	Not reported
Arrowstreet Capital, Limited Partnership	1.85%	$4.47M	0.00%	Not reported
Caspian Capital LP	1.73%	$4.18M	2.37%	Not reported
Qube Research & Technologies Ltd	1.72%	$4.14M	0.00%	Not reported
Citadel Advisors LLC	1.36%	$3.3M	0.00%	Not reported
Jacobs Levy Equity Management, Inc	1.20%	$2.91M	0.01%	Not reported
Bridgeway Capital Management, LLC	1.17%	$2.84M	0.05%	Not reported
Nuveen, LLC	1.13%	$2.74M	0.00%	Not reported
Marshall Wace, LLP	1.13%	$2.72M	0.00%	Not reported
D. E. Shaw & Co., Inc.	0.97%	$2.35M	0.00%	Not reported
Morgan Stanley	0.87%	$2.11M	0.00%	Not reported
Russell Investments Group, Ltd.	0.86%	$2.08M	0.00%	Not reported
683 Capital Management, LLC	0.77%	$1.87M	0.09%	Not reported
JB Capital Partners LP	0.73%	$1.76M	0.27%	Not reported
Ancora Advisors LLC	0.72%	$1.74M	0.03%	Not reported
Kerrisdale Advisers, LLC	0.71%	$1.72M	0.43%	Add 420.59%
Vanguard Portfolio Management LLC	0.69%	$1.67M	0.00%	Not reported
Northern Trust Corp	0.67%	$1.62M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.58%	$1.41M	0.00%	Not reported
KBC Group NV	0.49%	$1.19M	0.00%	Add 68.67%
Empowered Funds, LLC	0.49%	$1.18M	0.01%	Add 5.82%
Bank of New York Mellon Corp	0.49%	$1.18M	0.00%	Not reported
Kestrel Investment Management Corp	0.48%	$1.15M	0.63%	Not reported
Goldman Sachs Group Inc	0.42%	$1.01M	0.00%	Not reported
Pacific Ridge Capital Partners, LLC	0.41%	$1M	0.18%	Add 18.79%
Marathon Capital Management	0.41%	$995K	0.20%	Not reported
AQR Capital Management LLC	0.38%	$929K	0.00%	Not reported
First Trust Advisors LP	0.36%	$871K	0.00%	Add 4.64%
Numerai GP LLC	0.36%	$862K	0.07%	Reduce 15.25%
Credit Agricole S A	0.33%	$804K	0.00%	Not reported
Wedge Capital Management L L P	0.33%	$790K	0.01%	Reduce 4.92%
Two Sigma Investments, LP	0.31%	$757K	0.00%	Not reported
Prudential Financial Inc	0.29%	$699K	0.00%	Not reported
Inspire Investing, LLC	0.28%	$684K	0.03%	Add 35.31%
Charles Schwab Investment Management Inc	0.26%	$626K	0.00%	Not reported
Quantinno Capital Management LP	0.25%	$614K	0.00%	Add 40.25%
Ameriprise Financial Inc	0.23%	$565K	0.00%	Not reported
JPMorgan Chase & Co	0.22%	$514K	0.00%	Not reported
Invesco Ltd.	0.17%	$402K	0.00%	Not reported
Pinnacle Associates Ltd	0.17%	$402K	0.00%	Not reported
Squarepoint Ops LLC	0.16%	$380K	0.00%	Not reported
Deutsche Bank Ag\	0.15%	$351K	0.00%	Not reported

50 of 144 holders

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