POWER SOLUTIONS INTERNATIONAL, INC. (PSIX) Institutional Ownership Changes & 13F Activity
POWER SOLUTIONS INTERNATIONAL, INC. (PSIX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Point72 Asset Management, L.P., Newtyn Management, Llc, Olp Capital Management Ltd, Yiheng Capital Management, L.P., and Millennium Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +24,058 | +86.0% | 52,017 | $2.02M | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Buy | +1,005 | +11.5% | 9,744 | $378.94K | Q2 2026 | Aug 24, 2026 |
| Strive Financial Group ,Llc | Sell | -274 | -68.5% | 126 | $4.90K | Q2 2026 | Aug 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +1,491,805 | +27884.2% | 1,497,155 | $58.22M | Q2 2026 | Aug 14, 2026 |
| Newtyn Management, Llc | Buy | +600,890 | — | 600,890 | $23.37M | Q2 2026 | Aug 14, 2026 |
| Olp Capital Management Ltd | Buy | +283,940 | — | 283,940 | $11.04M | Q2 2026 | Aug 14, 2026 |
| Yiheng Capital Management, L.P. | Buy | +133,500 | — | 133,500 | $5.19M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +109,062 | +111.4% | 206,942 | $8.05M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +103,027 | +232.5% | 147,333 | $5.73M | Q2 2026 | Aug 14, 2026 |
| Meros Investment Management, Lp | Buy | +90,000 | +229.2% | 129,266 | $5.03M | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +72,064 | +30.1% | 311,110 | $12.10M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Buy | +65,260 | +195.2% | 98,700 | $6.01M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +62,590 | +135.0% | 108,961 | $4.24M | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Sell | -53,879 | -60.8% | 34,788 | $1.35M | Q2 2026 | Aug 14, 2026 |
| Defiance Etfs, Llc | Buy | +52,013 | +249.2% | 72,881 | $2.68M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +37,220 | +438.6% | 45,707 | $1.78M | Q2 2026 | Aug 14, 2026 |
| Exoduspoint Capital Management, Lp | Buy | +37,020 | — | 37,020 | $1.44M | Q2 2026 | Aug 14, 2026 |
| Voloridge Investment Management, Llc | Sell | -34,993 | -48.2% | 37,637 | $1.46M | Q2 2026 | Aug 14, 2026 |
| Onyxpoint Global Management Lp | Sell | -24,461 | -31.4% | 53,458 | $2.08M | Q2 2026 | Aug 14, 2026 |
| Freestone Grove Partners Lp | Buy | +20,286 | — | 20,286 | $788.92K | Q2 2026 | Aug 14, 2026 |
| Brevan Howard Capital Management Lp | Buy | +19,608 | — | 19,608 | $762.55K | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +17,802 | +212.0% | 26,201 | $1.02M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +15,916 | +137.6% | 27,479 | $1.07M | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Sell | -14,208 | -32.4% | 29,644 | $1.15M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -13,733 | -43.6% | 17,762 | $690.76K | Q2 2026 | Aug 14, 2026 |
| Kerrisdale Advisers, Llc | Buy | +13,510 | +115.8% | 25,175 | $979.06K | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +13,307 | +106.1% | 25,845 | $1.01M | Q2 2026 | Aug 14, 2026 |
| Valiant Capital Management, L.P. | Buy | +12,286 | +17.7% | 81,674 | $3.18M | Q2 2026 | Aug 14, 2026 |
| Lazard Asset Management Llc | Buy | +10,534 | — | 10,534 | $409.67K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Sell | -8,152 | -61.0% | 5,221 | $203.02K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about PSIX activity
Which institutional owners are buying PSIX?
Institutional owners buying PSIX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PSIX activity?
"Buy" means an investor increased their reported position in PSIX compared to the prior reporting period. This reflects growing exposure to POWER SOLUTIONS INTERNATIONAL, INC. (PSIX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PSIX increasing?
Institutional interest in PSIX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.