Who Owns PSIX?
Power Solutions International, Inc. — Institutional Ownership & 13F Holdings
$68.84
-5.43 (-7.31%)
Market Cap
$1.8B
Shares Outstanding
23,050,450
Institutional Holders
66
Total Inst. Value
$269.1M
% of Float Held
37.2%
QoQ Holder Change
+65
Institutional data as of Q1 2025
New Positions
42
Closed Positions
5
Increased
15
Decreased
6
Institutional Ownership Trend
Top 10 Institutional Holders(Q1 2025)
| # | Fund | Value | Shares |
|---|---|---|---|
| 1 | NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $201.2M | 7,957 |
| 2 | GAGNON SECURITIES LLCNew | $13.3M | 525,291 |
| 3 | Gagnon Advisors, LLCNew | $8.2M | 323,484 |
| 4 | Portolan Capital Management, LLC | $7.5M | 296,442 |
| 5 | VANGUARD GROUP INCNew | $6.9M | 274,693 |
| 6 | S Squared Technology, LLC | $4.1M | 163,034 |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNew | $2.7M | 107,427 |
| 8 | BlackRock, Inc. | $2.5M | 96,947 |
| 9 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $2.0M | 80,570 |
| 10 | GEODE CAPITAL MANAGEMENT, LLCNew | $1.9M | 76,349 |
Biggest Buyers & Sellers This Quarter
Top Buyers
| Fund | Shares Added | Value |
|---|---|---|
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | +7 | $201.2M |
| GAGNON SECURITIES LLCNew | +525K | $13.3M |
| Gagnon Advisors, LLCNew | +323K | $8.2M |
| VANGUARD GROUP INCNew | +275K | $6.9M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPNew | +107K | $2.7M |
Top Sellers
| Fund | Shares Removed | Value |
|---|---|---|
| S Squared Technology, LLC | -130K | $4.1M |
| Portolan Capital Management, LLC | -45K | $7.5M |
| WORLD EQUITY GROUP, INC. | -8K | $238K |
| CITIGROUP INC | -5K | $31K |
| Manatuck Hill Partners, LLC | -3K | $441K |
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Frequently Asked Questions
How many institutional investors hold PSIX?
As of Q1 2025, 66 institutional investors report holding PSIX (Power Solutions International, Inc.) in their 13F filings.
What percentage of Power Solutions International, Inc. is owned by institutions?
Institutional investors hold approximately 37.2% of Power Solutions International, Inc.'s float as reported in SEC 13F filings.
Which hedge fund owns the most PSIX?
The largest institutional holder of PSIX is NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO with $201.2M in shares.
Are institutions buying or selling PSIX?
This quarter, 42 institutions opened new positions in PSIX and 5 closed their positions.
What is 13F institutional ownership?
SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.
How often is institutional ownership data updated?
13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.