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PSIX

Power Solutions International
PSIX

65 hedge funds and large institutions have $79.4M invested in Power Solutions International in 2025 Q1 according to their latest regulatory filings, with 39 funds opening new positions, 15 increasing their positions, 8 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

680% more first-time investments, than exits

New positions opened: 39 | Existing positions closed: 5

110% more funds holding

Funds holding: 31 → 65 (+34)

88% more repeat investments, than reductions

Existing positions increased: 15 | Existing positions reduced: 8

16% more capital invested

Capital invested by funds: $68.7M → $79.4M (+$10.7M)

3.6% more ownership

Funds ownership: 10.04% → 13.64% (+3.6%)

0% more funds holding in top 10

Funds holding in top 10: 2 → 2 (0)

Holders
65
Holders Change
+34
Holders Change %
+109.68%
% of All Funds
0.87%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
39
Increased
15
Reduced
8
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Vanguard Group
Vanguard Group
Pennsylvania
+$9.47M
2
Marshall Wace
Marshall Wace
United Kingdom
+$6.61M
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$3.7M
4
BlackRock
BlackRock
New York
+$3.29M
5
Citadel Advisors
Citadel Advisors
Florida
+$3.22M

Top Sellers

1
GS
Gagnon Securities
New York
-$11.2M
2
GA
Gagnon Advisors
New York
-$5.06M
3
SST
S Squared Technology
New York
-$4.48M
4
PCM
Portolan Capital Management
Massachusetts
-$1.55M
5
SSA
Schonfeld Strategic Advisors
New York
-$455K
Name Holding Trade Value Shares
Change 		Change in
Stake
Citigroup
51
Citigroup
New York
$30.8K -$187K -5,433 -82%
VI
52
Vestcor Inc
New Brunswick, Canada
$29K +$39.2K +1,137 New
TRCT
53
Tower Research Capital (TRC)
New York
$24K +$31.9K +924 +3,696%
FFA
54
Farther Finance Advisors
California
$22.8K +$30.3K +878 New
PS
55
Principal Securities
Iowa
$21K – – –
CA
56
CoreCap Advisors
Michigan
$20.2K +$27.6K +800 New
NA
57
NewEdge Advisors
Louisiana
$18.3K +$25K +725 New
Jones Financial Companies
58
Jones Financial Companies
Missouri
$7.2K +$9.48K +275 New
CFD
59
Creative Financial Designs
Indiana
$5.06K +$6.9K +200 New
WPA
60
West Paces Advisors
Georgia
$2.15K +$2.93K +85 New
SHIM
61
Stone House Investment Management
Pennsylvania
$1.64K +$2.24K +65 New
LFG
62
Larson Financial Group
Missouri
$1.01K +$1.38K +40 New
QCG
63
Quadrant Capital Group
Ohio
$456 +$621 +18 New
US Bancorp
64
US Bancorp
Minnesota
$51 -$2.21K -64 -97%
HNB
65
Huntington National Bank
Ohio
$25 – – –
SSA
66
Schonfeld Strategic Advisors
New York
– -$455K -15,300 Closed
TDC
67
Thompson Davis & Co
Virginia
– -$251K -8,450 Closed
EFA
68
Evernest Financial Advisors
Indiana
– -$223K -7,500 Closed
APA
69
Astoria Portfolio Advisors
New York
– -$263K -7,277 Closed
MCM
70
MAI Capital Management
Ohio
– -$8.93K -300 Closed
1 2
3

PSIX Hedge Fund Activity: Q1 2025 in Review

65 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Power Solutions International (PSIX) for Q1 2025, worth a combined $79.4M — up 16% from $68.7M a quarter earlier.

Buyers outnumbered sellers: 39 funds opened new PSIX positions and 5 closed out — a net gain of 34 holders — while 15 added to existing stakes and 8 trimmed.

The largest buyer was Vanguard Group, opening a new position worth an estimated $9.47M. The largest seller was Gagnon Securities, cutting an estimated $11.2M.

  • 65 institutional investors held Power Solutions International (PSIX) as of Q1 2025, up from 31 in Q4 2024.
  • Funds reported $79.4M of Power Solutions International stock for Q1 2025, up 16% quarter-over-quarter.
  • 39 funds opened new Power Solutions International positions in Q1 2025 and 5 closed out, a net change of +34 holders.
  • The largest Power Solutions International buyer in Q1 2025 was Vanguard Group, an estimated $9.47M added.
  • The largest Power Solutions International seller in Q1 2025 was Gagnon Securities, an estimated $11.2M sold.

Based on aggregated 13F filings for Q1 2025.