PSIX

Power Solutions International, Inc. Common Stock
PSIX

Overview Fund Activity

66 hedge funds and large institutions have $79.4M invested in Power Solutions International, Inc. Common Stock in 2025 Q1 according to their latest regulatory filings, with 40 funds opening new positions, 15 increasing their positions, 8 reducing their positions, and 5 closing their positions.

Holders
66
Holders Change
+35
Holders Change %
+112.9%
% of All Funds
0.9%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
40
Increased
15
Reduced
8
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$6.94M
2
Marshall Wace
2
Marshall Wace
United Kingdom
$6.65M
3
Susquehanna International Group
3
Susquehanna International Group
Pennsylvania
$2.72M
4
BlackRock
4
BlackRock
New York
$2.45M
5
Citadel Advisors
5
Citadel Advisors
Florida
$2.67M

Top Sellers

1
GS
1
Gagnon Securities
New York
$13.3M
2
GA
2
Gagnon Advisors
New York
$8.18M
3
SST
3
S Squared Technology
New York
$4.12M
4
PCM
4
Portolan Capital Management
Massachusetts
$7.49M
5
SSA
5
Schonfeld Strategic Advisors
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
GS
1
Gagnon Securities
New York
$13.3M 525,291 -324,855 -38%
GA
2
Gagnon Advisors
New York
$8.18M 323,484 -146,681 -31%
PCM
3
Portolan Capital Management
Massachusetts
$7.49M 296,442 -44,845 -13%
Vanguard Group
4
Vanguard Group
Pennsylvania
$6.94M 274,693 +274,693 New
Marshall Wace
5
Marshall Wace
United Kingdom
$6.65M 263,124 +191,536 +268%
SST
6
S Squared Technology
New York
$4.12M 163,034 -130,000 -44%
Susquehanna International Group
7
Susquehanna International Group
Pennsylvania
$2.72M 107,427 +107,427 New
Citadel Advisors
8
Citadel Advisors
Florida
$2.67M 105,774 +93,462 +759%
BlackRock
9
BlackRock
New York
$2.45M 96,947 +95,420 +6,249%
OSAM
10
O'Shaughnessy Asset Management
Connecticut
$2.04M 80,570 +7,702 +11%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$1.93M 76,349 +76,349 New
Millennium Management
12
Millennium Management
New York
$1.47M 58,200 +58,200 New
Two Sigma Investments
13
Two Sigma Investments
New York
$1.37M 54,261 +54,261 New
NA
14
Navellier & Associates
Nevada
$1.1M 39,666 +39,666 New
VCM
15
Valiant Capital Management
California
$1.1M 43,605 +8,155 +23%
IAA
16
Independent Advisor Alliance
North Carolina
$1.09M 42,940 +42,940 New
RWM
17
Ritholtz Wealth Management
New York
$1.01M 39,855 +39,855 New
CCM
18
Corsair Capital Management
New York
$929K 36,767 +20,767 +130%
BC
19
Burney Company
Virginia
$857K 33,890 +33,890 New
Charles Schwab
20
Charles Schwab
California
$782K 30,945 +30,945 New
Squarepoint
21
Squarepoint
New York
$776K 30,713 +30,713 New
Man Group
22
Man Group
United Kingdom
$628K 24,835 +24,835 New
Raymond James Financial
23
Raymond James Financial
Florida
$625K 24,729 +24,729 New
Goldman Sachs
24
Goldman Sachs
New York
$625K 24,717 +24,717 New
Osaic Holdings
25
Osaic Holdings
Arizona
$559K 22,122 +19,317 +689%
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