Skip to main content
PSIX logo

PSIX · Power Solutions International, Inc.

Track PSIX — free
$36.43 +0.13 (+0.36%) At close · Aug 21
Market Cap
$840.27M
Shares
23.07M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 157
Total Value: $343,002,000
Total Shares: 8,819,891

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 157 13F filers · Δ vs Mar 31, 2026
Top Holder
17.0%
Sep 2023 → Jun 2026 · range 9.3% – 49.0%
+7.7 pts
Top 5
40.8%
Sep 2023 → Jun 2026 · range 30.9% – 100.0%
+9.8 pts
Top 10
56.3%
Sep 2023 → Jun 2026 · range 47.8% – 100.0%
+8.5 pts
HHI
552
Sep 2023 → Jun 2026 · range 320 – 3,702
Broadly held+231

Quarterly Activity

vs Mar 31, 2026
New
26
Increased
59
Decreased
50
Sold Out
74
Unchanged
22
Holder count: -48
Institutional value: -27.0%
Shares held: +14.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 162
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1137091 CUSIP 73933G202 13F (30d) 143 filings 140 filers Visit website Investor relations