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$PSIX
$48.58 +$0.00 (0.0%) Close

Ownership

13F as of Q2 2026 · 23.1M shares outstanding

Who owns PSIX?

By type of holder
Institutions 35.2% Insiders 56.0% Everyone else 8.8%
Concentration Top 10 holders own 72.2%
Weichai America Corp. 46.5% · Point72 Asset Management, L.P. 6.5%
Institutional ownership
35.2%
+3.7 pts vs last qtr
Institutional holders
154
-49 vs last qtr
Net shares bought
+841.9K
by institutions in Q2 2026
New / sold out
24 / 73
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • Point72 Asset Management, L.P. +1.5M
  • Newtyn Management, LLC NEW +600.9K

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Biggest sellers in Q2 2026
  • Arrowstreet Capital, Limited Partnership SOLD OUT −466.2K
  • Situational Awareness Partners LP SOLD OUT −432.3K

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Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Power Solutions International, Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2016–FY2025
+111.0%
+8.65% a year
Each share's claim on the business
−52.6%
shrank without buying or selling a share
Spent on buybacks vs paid in stock
— vs $8.06M
over 10 fiscal years
Diluted shares, split-adjusted
10.6M16.9M23.3M2016: 10.9M shares'162017: 13.8M shares'172018: 18.6M shares'182019: 21.5M shares'192020: 22.9M shares'202021: 22.9M shares'212022: 22.9M shares'222023: 23.0M shares'232024: 23.0M shares'242025: 23.1M shares'25
Buybacks Stock-based comp
$0$1.3M$2.7M2016 buybacks: $02016 stock comp: $1.6M'162017 buybacks: $02017 stock comp: $473.0K'172018 buybacks: $02018 stock comp: $2.7M'182019 buybacks: $02019 stock comp: $1.2M'192020 buybacks: $02020 stock comp: $607.0K'202021 buybacks: $02021 stock comp: $394.0K'212022 buybacks: $02022 stock comp: $385.0K'222023 buybacks: $02023 stock comp: $151.0K'232024 buybacks: $02024 stock comp: $89.0K'242025 buybacks: $02025 stock comp: $427.0K'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years0% 3–5 years0% 1–3 years46% Under 1 year54%
Quarterly turnover
50.0%
of institutional shares changed hands
Top 10 managers, median time held
1.3 years

Super Investors

Investment managers reporting PSIX on Form 13F
PA
Point72 Asset Management, L.P.
Shares
1.5M
% of company
6.49%
Change vs last qtr
+1.5M (+27884.2%)
Held since
Q3 '25
B
BlackRock, Inc.
Shares
819.0K
% of company
3.55%
Change vs last qtr
+103.4K (+14.5%)
Held since
2024

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Institutional Funds

Mutual funds and ETFs reporting PSIX on Form N-PORT; together they hold 9.0% of the company
VT
Vanguard Total Stock Market Index Fund
Vanguard Index Funds
Position value
$9.98M
% of company
1.11%
% of the fund
0.00%
As of
June 30, 2026
IR
iShares Russell 2000 ETF
iShares Trust
Position value
$8.84M
% of company
0.99%
% of the fund
0.01%
As of
June 30, 2026

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Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G
WA
Weichai America Corp.
5%+ holder13D · 46.5%
Shares
10.7M
% of company
46.46%
Change vs last qtr
—
Held since
—
GS
Gary S. Winemaster
5%+ holder13D · 6.3%
Shares
1.5M
% of company
6.31%
Change vs last qtr
—
Held since
—

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