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Hudson Technologies
HDSN

Overview Fund Activity

161 hedge funds and large institutions have $195M invested in Hudson Technologies in 2025 Q1 according to their latest regulatory filings, with 27 funds opening new positions, 51 increasing their positions, 59 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
161
Holders Change
-7
Holders Change %
-4.17%
% of All Funds
2.19%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
27
Increased
51
Reduced
59
Closed
31
Calls
$690K
Puts
$138K
Net Calls
+$552K
Net Calls Change
-$605K

Top Buyers

1
HP
Hartree Partners
New York
+$22M
2
Two Sigma Advisers
Two Sigma Advisers
New York
+$1.81M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$1.46M
4
WCM
Westerly Capital Management
California
+$1.28M
5
Two Sigma Investments
Two Sigma Investments
New York
+$1.14M

Top Sellers

1
Lazard Asset Management
Lazard Asset Management
New York
-$2.93M
2
PP
Praetorian PR
Puerto Rico
-$2.23M
3
Citadel Advisors
Citadel Advisors
Florida
-$1.77M
4
6CM
683 Capital Management
New York
-$1.44M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$1.42M
Name Holding Trade Value Shares
Change 		Shares
Change %
HP
1
Hartree Partners
New York
$22M +$22M +3,573,142 New
BlackRock
2
BlackRock
New York
$19.6M +$53.3K +8,641 +0.3%
Vanguard Group
3
Vanguard Group
Pennsylvania
$15.9M +$32.5K +5,265 +0.2%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$12M -$626K -101,477 -5%
Renaissance Technologies
5
Renaissance Technologies
New York
$9.18M -$85.1K -13,800 -0.9%
NSCM
6
New South Capital Management
Tennessee
$9.15M +$1,000K +162,002 +12%
D.E. Shaw & Co
7
D.E. Shaw & Co
New York
$7.97M -$335K -54,328 -4%
WCM
8
Westerly Capital Management
California
$7.56M +$1.28M +207,420 +20%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$6.38M +$231K +37,364 +4%
State Street
10
State Street
Massachusetts
$5.86M -$747 -121 -0%
American Century Companies
11
American Century Companies
Missouri
$5.36M +$479K +77,587 +10%
JPMorgan Chase & Co
12
JPMorgan Chase & Co
New York
$3.95M -$1.31M -213,014 -25%
AQR Capital Management
13
AQR Capital Management
Connecticut
$3.65M +$245K +39,654 +7%
Morgan Stanley
14
Morgan Stanley
New York
$3.51M -$1.07M -174,217 -23%
Arrowstreet Capital
15
Arrowstreet Capital
Massachusetts
$3.38M +$1.46M +237,340 +76%
Two Sigma Investments
16
Two Sigma Investments
New York
$3.38M +$1.14M +185,118 +51%
Two Sigma Advisers
17
Two Sigma Advisers
New York
$3.26M +$1.81M +293,800 +125%
GC
18
Grizzlyrock Capital
Illinois
$2.68M +$324K +52,517 +14%
6CM
19
683 Capital Management
New York
$2.48M -$1.44M -233,317 -37%
Ohio Public Employees Retirement System (OPERS)
20
Ohio Public Employees Retirement System (OPERS)
Ohio
$2.48M -$101K -16,331 -4%
MCM
21
Marathon Capital Management
Maryland
$2.36M -$49.4K -8,000 -2%
Northern Trust
22
Northern Trust
Illinois
$2.18M -$152K -24,665 -7%
Millennium Management
23
Millennium Management
New York
$2.11M +$969K +156,996 +85%
JCP
24
JB Capital Partners
New York
$1.89M – – –
BCM
25
Bridgeway Capital Management
Texas
$1.71M +$505K +81,900 +42%
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