Hudson Technologies

HDSN • NASDAQ

Hudson Technologies is a chemicals - specialty company in the basic materials sector on NASDAQ, led by Brian F. Coleman, with a market cap of $325.2M. As of Q3 2025, 76% of shares are held by 168 institutional investors, with Hartree Partners, LP as the largest holder at 8.7%.

Chief Executive OfficerBrian F. Coleman

Market Cap$325.2M

Chemicals - Specialty

Basic Materials

Employees237.0

Websitehudsontech.com

Country

United States of America

Overview

Overview of institutional ownership in HDSN as of Q3 2025 with a market cap of $433.6M

All Institutions

Institutions: 168
Value Held: $330.3M
Shares Held: 33.3M
Avg Position: $2.0M
Median Position: $313.6K

Hedge Funds

Hedge Funds: 31
Value Held: $79.7M
Shares Held: 8.0M
Avg Position: $2.6M
Median Position: $549.5K

Ownership Breakdown

Institutional (non-HF)

57.8%

$250.6M

Hedge Funds

18.37%

$79.7M

Retail & Other

23.83%

$103.3M

Based on market cap of $433.6M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in HDSN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
H Hartree Partners, LP Institution	-	$37.7M 13.15% of portfolio	8.70% 3.8M shares	Q1 2025 Held for 8 months	$287.0M
B BlackRock, Inc. Institution	-	$28.4M 0.00% of portfolio	6.56% 2.9M shares	Q4 2016 Held for 8y 11m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$23.6M 0.00% of portfolio	5.43% 2.4M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
DIMENSIONAL FUND ADVISORS LP Long Only Manager	David Paul Butler CEO	$20.0M 0.00% of portfolio	4.60% 2.0M shares	Q2 2021 Held for 4y 5m	$466.32B
WESTERLY CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Christopher James Galvin Managing Partner	$18.8M 5.95% of portfolio	4.33% 1.9M shares	Q4 2021 Held for 3y 11m	$315.2M
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$17.8M 0.02% of portfolio	4.11% 1.8M shares	Q4 2020 Held for 4y 11m	$75.8B
NEW SOUTH CAPITAL MANAGEMENT INC Long Only Manager	David Stephen Morrow President	$13.2M 0.60% of portfolio	3.06% 1.3M shares	Q2 2024 Held for 1y 5m	$2.2B
A AMERICAN CENTURY COMPANIES INC Institution	-	$12.6M 0.01% of portfolio	2.92% 1.3M shares	Q3 2022 Held for 3y 2m	$195.93B
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	Anthony Ryan CEO	$11.0M 0.01% of portfolio	2.55% 1.1M shares	Q4 2024 Held for 11 months	$158.92B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$9.5M 0.00% of portfolio	2.19% 954.4K shares	≤ Q2 2013 Held for 12y 5m+	$1.57T

Net Capital Flow

Institutional buying and selling activity for HDSN in Q3 2025

Traded: +$2.5M
Buyers: 84
Sellers: 71
Total Bought: +$32.9M
Total Sold: −$30.3M
Avg Position: $1.7M

Biggest Buyers

Institution	Net Bought	Current Position
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager	+$2.3M +231.2K shares	$2.3M 231.2K shares
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	+$2.1M +211.9K shares	$2.1M 211.9K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	+$2.1M +207.2K shares	$2.1M 207.2K shares
C Cubist Systematic Strategies, LLC Institution	+$2.0M +205.9K shares	$2.0M 205.9K shares
A AMERICAN CENTURY COMPANIES INC Institution	+$2.0M +201.1K shares	$12.6M 1.3M shares
LAZARD ASSET MANAGEMENT LLC Long Only Manager	+$1.8M +180.0K shares	$2.6M 260.8K shares
Allspring Global Investments Holdings, LLC Long Only Manager	+$1.7M +175.3K shares	$1.7M 175.3K shares
Marshall Wace LLP Institution	+$1.2M +125.6K shares	$1.2M 125.6K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$1.2M +125.0K shares	$17.8M 1.8M shares
FIRST TRUST ADVISORS LP ETF Provider	+$1.2M +121.9K shares	$1.4M 137.8K shares

Biggest Sellers

Institution	Net Sold	Current Position
HENDERSON GROUP PLC Institution	−$4.7M −581.6K shares	Sold Off 0 shares
OAKTREE CAPITAL MANAGEMENT LP Hedge Fund•Multi-Strategy	−$4.6M −562.7K shares	Sold Off 0 shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	−$2.1M −258.8K shares	Sold Off 0 shares
H Hartree Partners, LP Institution	−$2.0M −200.0K shares	$37.7M 3.8M shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	−$1.7M −166.4K shares	$2.3M 227.7K shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	−$1.6M −163.1K shares	$1.9M 190.2K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$1.1M −110.8K shares	$3.5M 356.0K shares
Y Y-Intercept Ltd Institution	−$1.1M −135.2K shares	Sold Off 0 shares
WESTERLY CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	−$1.1M −110.0K shares	$18.8M 1.9M shares
VANGUARD GROUP INC Institution	−$1.1M −107.1K shares	$23.6M 2.4M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited HDSN in Q3 2025

New Positions: 12
New Value: $1.7M
Exited Positions: 20
Exited Value: $15.2M

New Positions

Institution	Position Value
C Campbell & CO Investment Adviser LLC Hedge Fund•Quant Macro	$488.7K 49.2K shares
CWM Advisors, LLC ETF Provider	$461.0K 46.4K shares
FourThought Financial Partners, LLC RIA/Wealth	$294.8K 29.7K shares
Cornerstone Investment Partners, LLC RIA/Wealth	$170.5K 17.2K shares
MERCER GLOBAL ADVISORS INC /ADV RIA/Wealth	$132.1K 13.3K shares
Independent Advisor Alliance RIA/Wealth	$127.0K 12.8K shares
N NKCFO LLC RIA/Wealth	$47.1K 4.7K shares
R Rialto Wealth Management, LLC RIA/Wealth	$9.9K 1.0K shares
WHITTIER TRUST CO RIA/Wealth	$4.2K 444.0 shares
C C M BIDWELL & ASSOCIATES LTD Institution	$4.0K 400.0 shares

Exited Positions

Institution	Previous Position
HENDERSON GROUP PLC Institution	$4.7M 581.6K shares
OAKTREE CAPITAL MANAGEMENT LP Hedge Fund•Multi-Strategy	$4.6M 562.7K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$2.1M 258.8K shares
Y Y-Intercept Ltd Institution	$1.1M 135.2K shares
SummerHaven Investment Management, LLC Long Only Manager	$787.0K 96.9K shares
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	$528.7K 65.1K shares
Kingstone Capital Partners Texas, LLC RIA/Wealth	$304.0K 37.4K shares
H HRT FINANCIAL LLC Institution	$286.2K 35.2K shares
S State of Tennessee, Treasury Department Institution	$222.1K 27.4K shares
S SHERBROOKE PARK ADVISERS LLC Hedge Fund•Quant	$125.3K 15.4K shares

Options Activity

Institutions with the largest Call and Put options positions in HDSN as of Q3 2025

Call Positions: 4
Call Value: $1.0M
Put Positions: 1
Put Value: $106.3K

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$437.9K 441.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$343.6K 346.0 contracts
P PEAK6 LLC Institution	$150.9K 152.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$74.5K 75.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$106.3K 107.0 contracts

Most Committed Institutions

Institutions with HDSN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
H Hartree Partners, LP Institution	-	13.15% $37.7M	8.70% 3.8M shares	Q1 2025 Held for 8 months	$287.0M
WESTERLY CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Christopher James Galvin Managing Partner	5.95% $18.8M	4.33% 1.9M shares	Q4 2021 Held for 3y 11m	$315.2M
KESTREL INVESTMENT MANAGEMENT CORP Hedge Fund•Event Driven	David J. Steirman President	1.17% $2.1M	0.48% 208.9K shares	Q3 2024 Held for 1y 2m	$177.4M
ZAZOVE ASSOCIATES LLC Hedge Fund•Multi-Strategy	Gene Thomas Pretti CEO	0.99% $496.5K	0.11% 50.0K shares	Q1 2024 Held for 1y 8m	$49.9M
NEW SOUTH CAPITAL MANAGEMENT INC Long Only Manager	David Stephen Morrow President	0.60% $13.2M	3.06% 1.3M shares	Q2 2024 Held for 1y 5m	$2.2B
J JB CAPITAL PARTNERS LP Hedge Fund•Value	Alan Wayne Weber CCO	0.52% $3.0M	0.70% 306.2K shares	Q1 2021 Held for 4y 8m	$584.1M
MARATHON CAPITAL MANAGEMENT RIA/Wealth	Edward George Hart Partner	0.45% $1.9M	0.45% 194.5K shares	≤ Q2 2013 Held for 12y 5m+	$433.1M
Kerrisdale Advisers, LLC Hedge Fund•Long/Short	Sahm Adrangi CIO	0.33% $636.5K	0.15% 64.1K shares	Q2 2024 Held for 1y 5m	$192.9M
6 683 Capital Management, LLC Hedge Fund•Long/Short	Ari Jonathan Zweiman Managing Partner	0.33% $3.5M	0.80% 350.0K shares	Q2 2024 Held for 1y 5m	$1.1B
E EdgeRock Capital LLC RIA/Wealth	Kyle F O'Dell President	0.24% $847.0K	0.20% 85.3K shares	Q2 2025 Held for 5 months	$346.9M

Hedge Fund Spotlight

Discover hedge funds investing in HDSN

OCCUDO QUANTITATIVE STRATEGIES LP

Hedge Fund • Market Neutral

Portfolio ManagerRicky Xiaoxiao Shi

Portfolio Value: $821.7M
Positions: 644
Last Reported: Q3 2025

Sector Allocation

Position in Hudson Technologies

Market Value: $327.0K
Shares Held: 32.9K
Portfolio Weight: 0.04%
Owned Since: 2025-Q2

Top Holding	Sector	Market Value	Weight
1 Lam Research LRCX	Semiconductors Technology	$9.4M	1.15%
2 Intuitive Surgical ISRG	Medical - Instruments & Supplies Healthcare	$9.4M	1.15%
3 Costco Wholesale COST	Discount Stores Consumer Defensive	$9.3M	1.14%