What percentage of PSIX is owned by institutions?

Based on Q1 2026 13F filings, institutional ownership of Power Solutions International, Inc. stands at 46.9%, held across 196 reporting institutions.

Who is the largest institutional holder of PSIX?

BlackRock, Inc. is the largest reported institutional holder of PSIX, with approximately 715,556 shares worth $0.04B as of Q1 2026.

Is PSIX a hedge fund favorite?

Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of PSIX, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC.

What is PSIX's Smart Money Score?

Our composite Smart Money Score for PSIX is 72 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.

How many institutions bought PSIX this quarter?

54 institutions opened new positions in PSIX during Q1 2026, while 49 fully exited. 103 added to existing positions and 38 trimmed.

How is institutional ownership of PSIX changing?

PSIX institutional ownership rose by 4.10 percentage points quarter-over-quarter, with a net change of +5 holders.

How concentrated is PSIX ownership among the top holders?

The top 10 institutions account for 51.3% of all reported 13F value in PSIX, and the top 25 account for 75.7%.

Where does this PSIX institutional ownership data come from?

All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.

Power Solutions International, Inc. (PSIX) Institutional Ownership Q1 2026 | Top 13F Holders

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Institutional ownership increased this quarter (+4.10 pp), though top 10 holders maintain a highly concentrated 51.3% of institutional value.

Institutional Ownership46.9%$441M total value · ▲ +4.10 pp vs prior quarter

Smart Money Score

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Top Institutional Holders of PSIX

Ranked by reported Q1 2026 13F market value

Top 10 Holders

51.3%

Top 25 Holders

75.7%

Share of total reported institutional value in PSIX held by the largest 10 / 25 filers.

#	Institution	Shares Held	Market Value	QoQ Change	Ownership %	% of Fund
1	BlackRock, Inc.	716K	$43.6M	+6.2%	3.104%	0.00%
2	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	466K	$28.4M	+5.2%	2.022%	0.02%
3	Situational Awareness Partners LP	432K	$26.3M	—	1.876%	0.50%
4	Situational Awareness LP	432K	$26.3M	0.0%	1.876%	0.50%
5	VANGUARD CAPITAL MANAGEMENT LLC	341K	$20.8M	—	1.479%	0.00%
6	Allspring Global Investments Holdings, LLC	301K	$19.9M	-8.4%	1.307%	0.03%
7	DIMENSIONAL FUND ADVISORS LP	283K	$17.2M	+40.3%	1.229%	0.00%
8	SUSQUEHANNA INTERNATIONAL GROUP, LLP	258K	$15.7M	+18.5%	1.121%	0.00%
9	BARCLAYS PLC	239K	$14.6M	+789.5%	1.037%	0.01%
10	Busey Wealth Management	220K	$13.4M	0.0%	0.954%	0.36%
11	GEODE CAPITAL MANAGEMENT, LLC	196K	$12.0M	+2.4%	0.852%	0.00%
12	STATE STREET CORP	171K	$10.4M	+3.5%	0.741%	0.00%
13	MORGAN STANLEY	167K	$10.2M	-4.4%	0.725%	0.00%
14	LPL Financial LLC	156K	$9.5M	+80.4%	0.678%	0.00%
15	CITADEL ADVISORS LLC	135K	$8.2M	+6.7%	0.584%	0.00%
16	DANSKE BANK A/S	122K	$7.4M	—	0.528%	0.02%
17	NAVELLIER & ASSOCIATES INC	108K	$6.5M	+5.7%	0.466%	0.68%
18	VANGUARD PORTFOLIO MANAGEMENT LLC	105K	$6.4M	—	0.456%	0.00%
19	Hel Ved Capital Management Ltd	101K	$6.1M	-6.7%	0.438%	0.78%
20	MILLENNIUM MANAGEMENT LLC	98K	$6.0M	+3.4%	0.425%	0.00%
21	Man Group plc	89K	$5.4M	+229.8%	0.385%	0.01%
22	FIRST TRUST ADVISORS LP	86K	$5.2M	+6.2%	0.374%	0.00%
23	NORTHERN TRUST CORP	80K	$4.9M	+2.2%	0.347%	0.00%
24	OnyxPoint Global Management LP	78K	$4.7M	—	0.338%	2.01%
25	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	75K	$4.6M	-0.4%	0.324%	0.00%

denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PSIX — a direct measure of their conviction.

PSIX Institutional Ownership by Quarter

8 quarters of 13F filings · Δ columns show change vs prior quarter

Quarter	Inst. Holders	Δ Holders	Ownership %	Δ Ownership	Total 13F Value	Δ Value
Q1 2026	196	+2.6%	46.93%	+4.10 pp	$441M	+9.6%
Q4 2025	191	4.0%	42.83%	16.40 pp	$402M	28%
Q3 2025	199	+59%	59.23%	+36.60 pp	$556M	+162%
Q2 2025	125	+87%	22.63%	+14.30 pp	$212M	+172%
Q1 2025	67	+103%	8.33%	+1.08 pp	$78M	+15%
Q4 2024	33	+725%	7.25%	+2.26 pp	$68M	+45%
Q3 2024	4	+0.0%	4.99%	+3.14 pp	$47M	+169%
Q2 2024	4	—	1.85%	—	$17M	—

Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.

Power Solutions International, Inc. (PSIX) Institutional Ownership

Power Solutions International, Inc. (PSIX) Institutional Ownership

AI Insights & Key Takeaways

Top Institutional Holders of PSIX

Quarterly Institutional Activity

PSIX Institutional Ownership by Quarter

PSIX — Frequently Asked Questions