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HDSN

Hudson Technologies
HDSN

148 hedge funds and large institutions have $271M invested in Hudson Technologies in 2025 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 44 increasing their positions, 58 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed

142,800% more call options, than puts

Call options by funds: $5.72M | Put options by funds: $4K

39% more capital invested

Capital invested by funds: $195M → $271M (+$75.7M)

4.96% more ownership

Funds ownership: 71.7% → 76.66% (+5%)

0% more funds holding in top 10

Funds holding in top 10: 2 → 2 (0)

9% less funds holding

Funds holding: 162 → 148 (-14)

24% less repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 58

40% less first-time investments, than exits

New positions opened: 21 | Existing positions closed: 35

Holders
148
Holders Change
-14
Holders Change %
-8.64%
% of All Funds
1.95%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
21
Increased
44
Reduced
58
Closed
35
Calls
$5.72M
Puts
$4K
Net Calls
+$5.71M
Net Calls Change
+$5.16M

Top Buyers

Rank Fund Capital Flow
1
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$5.53M
2
WCM
Westerly Capital Management
California
+$5.32M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$3.87M
4
OCM
Oaktree Capital Management
California
+$3.86M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$3.54M

Top Sellers

Rank Fund Capital Flow
1
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$3.43M
2
JP Morgan Chase
JP Morgan Chase
New York
-$3.32M
3
GC
Grizzlyrock Capital
Illinois
-$2.68M
4
BlackRock
BlackRock
New York
-$1.81M
5
AQR Capital Management
AQR Capital Management
Connecticut
-$1.79M
Name Holding Trade Value Shares
Change 		Change in
Stake
AB
126
Amalgamated Bank
New York
$12K – – –
SCM
127
Sterling Capital Management
North Carolina
$8.32K +$2.46K +359 +54%
TWD
128
True Wealth Design
Ohio
$8.28K -$75 -11 -1%
Nisa Investment Advisors
129
Nisa Investment Advisors
Missouri
$7.93K +$3.35K +489 +100%
National Bank of Canada
130
National Bank of Canada
Quebec, Canada
$6.98K +$5.9K +860 New
HCA
131
Harbor Capital Advisors
Illinois
$6K +$864 +126 +21%
EP
132
Essential Partners
California
$5.83K +$4.92K +718 New
EWA
133
EverSource Wealth Advisors
Alabama
$5.82K +$2.45K +357 +99%
CA
134
Clearstead Advisors
Ohio
$4.59K +$3.88K +565 New
Northwestern Mutual Wealth Management
135
Northwestern Mutual Wealth Management
Wisconsin
$4.06K – – –
A
136
AlphaQuest
New York
$3.89K +$3.29K +479 New
CIAM
137
Caitong International Asset Management
Hong Kong
$3.83K +$1.62K +236 +100%
PWMG
138
Private Wealth Management Group
New Jersey
$3.3K – – –
RTL
139
Red Tortoise LLC
Georgia
$2.66K – – –
IA
140
IFP Advisors
Florida
$1.93K – – –
FHA
141
First Horizon Advisors
Tennessee
$1.65K – – –
AIM
142
Anchor Investment Management
South Carolina
$1.62K – – –
Jones Financial Companies
143
Jones Financial Companies
Missouri
$1.06K – – –
SC
144
Stephens Consulting
Michigan
$1.02K – – –
Fifth Third Bancorp
145
Fifth Third Bancorp
Ohio
$1.01K +$851 +124 New
BIG
146
Brooklyn Investment Group
New York
$699 -$515 -75 -47%
AAP
147
Arax Advisory Partners
Colorado
$626 +$528 +77 New
PNC Financial Services Group
148
PNC Financial Services Group
Pennsylvania
$114 +$75 +11 +367%
SS
149
SBI Securities
Japan
$106 +$14 +2 +18%
GC
150
Grizzlyrock Capital
Illinois
– -$2.68M -434,716 Closed
4 5
6
7 8

HDSN Hedge Fund Activity: Q2 2025 in Review

148 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Hudson Technologies (HDSN) for Q2 2025, worth a combined $271M — up 39% from $195M a quarter earlier.

Sellers outnumbered buyers: 35 funds closed out of HDSN and 21 opened new positions — a net loss of 14 holders — while 58 trimmed existing stakes and 44 added.

The largest buyer was Royal Bank of Canada, adding an estimated $5.53M. The largest seller was D.E. Shaw & Co, cutting an estimated $3.43M.

  • 148 institutional investors held Hudson Technologies (HDSN) as of Q2 2025, down from 162 in Q1 2025.
  • Funds reported $271M of Hudson Technologies stock for Q2 2025, up 39% quarter-over-quarter.
  • 21 funds opened new Hudson Technologies positions in Q2 2025 and 35 closed out, a net change of -14 holders.
  • The largest Hudson Technologies buyer in Q2 2025 was Royal Bank of Canada, an estimated $5.53M added.
  • The largest Hudson Technologies seller in Q2 2025 was D.E. Shaw & Co, an estimated $3.43M sold.

Based on aggregated 13F filings for Q2 2025.