Who Owns Power Solutions International, Inc. (PSIX)?Hedge Fund & Institutional Holders
Institutional Holders
50
as of Q4 2025
Total Institutional Value
$InfinityT
% of Float Held
5.255026671120749e+248%
QoQ Change in Holders
+13 / -5
Price History
PSIX — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| ANTIPODES PARTNERS Ltd | New Position | +228K | +$13.1B |
| Busey Bank | New Position | +220K | +$12.6B |
| DIMENSIONAL FUND ADVISORS LP | Increased | +180K | +$8.8B |
| FIRST TRUST ADVISORS LP | New Position | +81K | +$4.0B |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New Position | +75K | +$4.0B |
| Ruffer LLP | New Position | +38K | +$2.2B |
| MILLENNIUM MANAGEMENT LLC | Increased | +65K | +$2.1B |
| BURNEY CO/ | New Position | +30K | +$1.7B |
| PRINCIPAL FINANCIAL GROUP INC | New Position | +24K | +$1.4B |
| RITHOLTZ WEALTH MANAGEMENT | New Position | +19K | +$1.1B |
| PLATINUM INVESTMENT MANAGEMENT LTD | New Position | +20K | +$1.0B |
| IMC-Chicago, LLC | New Position | +16K | +$939.0M |
| WORLD EQUITY GROUP, INC. | New Position | +16K | +$899.0M |
| STEPHENS INC /AR/ | New Position | +12K | +$685.0M |
| Hennion & Walsh Asset Management, Inc. | New Position | +9K | +$513.0M |
PSIX — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| Portolan Capital Management, LLC | Closed Position | -196K | -$19.2B |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Decreased | -119K | -$13.6B |
| Invesco Ltd. | Decreased | -93K | -$9.4B |
| CITADEL ADVISORS LLC | Decreased | -67K | -$8.2B |
| LAZARD ASSET MANAGEMENT LLC | Decreased | -35K | -$4.7B |
| Mercuria Capital Strategies, LLC | Closed Position | -46K | -$4.6B |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Decreased | -24K | -$4.3B |
| Cubist Systematic Strategies, LLC | Closed Position | -39K | -$3.8B |
| Cetera Investment Advisers | Decreased | -15K | -$3.6B |
| MML INVESTORS SERVICES, LLC | Decreased | -2K | -$3.4B |
| OSAIC HOLDINGS, INC. | Decreased | -14K | -$2.8B |
| FRANKLIN RESOURCES INC | Decreased | -3K | -$2.4B |
| JANE STREET GROUP, LLC | Closed Position | -19K | -$1.9B |
| CREDIT AGRICOLE S A | Decreased | -9K | -$1.8B |
| TWO SIGMA ADVISERS, LP | Closed Position | -18K | -$1.7B |
Top Institutional Holders(Q4 2025)
PSIX Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 191 | $163.0B | +39 |
| Q3 2025 | 152 | $265.6B | +42 |
| Q2 2025 | 110 | $117.5B | +44 |
| Q1 2025 | 66 | $69.4B | +37 |
| Q4 2024 | 29 | $49.0B | +28 |
| Q3 2024 | 1 | $0 | +0 |
| Q2 2024 | 1 | $0 | +0 |
| Q1 2024 | 1 | $0 | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 50 institutional investors hold PSIX (Power Solutions International, Inc.). The largest holder is ARROWSTREET CAPITAL, LIMITED PARTNERSHIP with $25.0B in shares. This quarter, 13 institutions opened new positions and 5 closed their positions.
Frequently Asked Questions
How many hedge funds own PSIX?
As of Q4 2025, 50 institutional investors report holding PSIX (Power Solutions International, Inc.) in their 13F filings.
Who is the largest institutional holder of PSIX?
The largest institutional holder of PSIX is ARROWSTREET CAPITAL, LIMITED PARTNERSHIP with $25.0B in shares.
Is institutional ownership of PSIX increasing or decreasing?
This quarter, 13 institutions opened new positions in PSIX and 5 closed their positions.