PSIX on Nasdaq

POWER SOLUTIONS INTERNATIONAL, INC.

American engines and turbines company based in Wood Dale, active since 2011.

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Last updated Oct 18, 2026.

Overview

Compare with China Yuchai International, BWX Technologies or Capstone Energy Plus, Inc., or pick any stock.

  • TickerPSIX on Nasdaq
  • IndustryEngines & Turbines
  • HeadquartersWood Dale, United States
  • Incorporated inIL2
  • Business address201 Mittel Drive, Wood Dale, Il 601912
  • Filer categoryLarge accelerated filer2

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Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

25.6%Gross margin3
15.2%Operating margin3
15.8%Net margin3
51.8%Revenue growth, 20253
63.8%Return on equity3
0.00×Debt to equity3

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Energy End Market brought in 81% of the revenue POWER SOLUTIONS INTERNATIONAL, INC. broke down this way in fiscal 2025.

  1. Energy End Market$586.3M381%up 80% from 2024
  2. Industrial End Market$114.8M316%down 7% from 2024
  3. Transportation End Market$21.3M33%down 21% from 2024
Products and services by year
Products and services20242025
Energy End Market$325.7M$586.3M
Industrial End Market$123.3M$114.8M
Transportation End Market$26.9M$21.3M

Regions

United States brought in 93% of the revenue POWER SOLUTIONS INTERNATIONAL, INC. broke down this way in fiscal 2025.

  1. United States$675.2M393%up 61% from 2024
  2. Pacific Rim$22.3M33%down 10% from 2024
  3. North America, Excluding United States$21.3M33%down 13% from 2024
  4. Europe$3.4M30%down 52% from 2024
  5. Other Geographical Areas$259.0K30%up 389% from 2024
Regions by year
Regions20242025
United States$419.7M$675.2M
Pacific Rim$24.7M$22.3M
North America, Excluding United States$24.5M$21.3M
Europe$7.1M$3.4M
Other Geographical Areas$53.0K$259.0K

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue74¢$537.5M
  • Research and development3¢$18.2M
  • Other costs6¢$42.1M
  • Income tax1¢$10.6M
  • Profit16¢$114.0M

Out of $722.4M in revenue.3

Where each dollar of operating cash went, fiscal 2025

  • Kept or used elsewhere100¢$24.1M

Out of $24.1M of cash from operations.3

Financial statements

Revenue456783$722.4M in 2025+32% since 2019
0$200.0M$400.0M$600.0M$800.0M2019: $546.1M$546.1M20192020: $417.6M$417.6M2020−24%2021: $456.3M$456.3M2021+9%2022: $481.3M$481.3M2022+5%2023: $459.0M$459.0M2023−5%2024: $476.0M$476.0M2024+4%2025: $722.4M$722.4M2025+52%
Gross profit456783$184.9M in 2025+85% since 2019
0$50.0M$100.0M$150.0M$200.0M2019: $99.9M$99.9M20192020: $58.4M$58.4M2020−41%2021: $41.3M$41.3M2021−29%2022: $88.6M$88.6M2022+115%2023: $105.9M$105.9M2023+20%2024: $140.5M$140.5M2024+33%2025: $184.9M$184.9M2025+32%
Operating income456783$109.7M in 2025+538% since 2019
-$50.0M0$50.0M$100.0M$150.0M2019: $17.2M$17.2M20192020: -$21.7M-$21.7M20202021: -$41.6M-$41.6M2021+91%2022: $24.6M$24.6M20222023: $44.3M$44.3M2023+80%2024: $81.6M$81.6M2024+84%2025: $109.7M$109.7M2025+34%
Net income456783$114.0M in 2025+1282% since 2019
-$50.0M0$50.0M$100.0M$150.0M2019: $8.2M$8.2M20192020: -$23.0M-$23.0M20202021: -$48.5M-$48.5M2021+111%2022: $11.3M$11.3M20222023: $26.3M$26.3M2023+133%2024: $69.3M$69.3M2024+163%2025: $114.0M$114.0M2025+65%

Every line of the income statement as filed: the last 2 fiscal years, latest first.3

Period ending2025-12-312024-12-31
Cost of sales (derived from related party net sales $863 and $1,304 for the year ended December 31, 2025 and 2024, respectively)$537.5M$335.4M
Gross profit$184.9M$140.5M
Research and development expenses$18.2M$20.1M
Selling, general and administrative expenses$55.8M$37.4M
Amortization of intangible assets$1.2M$1.5M
Total operating expenses$75.2M$58.9M
Operating income$109.7M$81.6M
Interest expense (from related parties $634 and $6,998 for the year ended December 31, 2025 and 2024, respectively)$6.7M$11.4M
Other expense (income)-$352.0K$0
Total other expense, net$6.3M$11.4M
Income before income taxes$103.4M$70.2M
Income tax (benefit) expense-$10.6M$922.0K
Net income$114.0M$69.3M
Basic (in shares)23.0M shares23.0M shares
Diluted (in shares)23.1M shares23.0M shares
Basic (in dollars per share)$4.95$3.01
Diluted (in dollars per share)$4.94$3.01
Net sales to related party$722.4M$476.0M
Related parties amount in cost of sales$863.0K$1.3M

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Leadership

Who has led POWER SOLUTIONS INTERNATIONAL, INC., and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Gary S. Winemaster2011–2013
  2. Lance Michael Arnett2022
  3. Constantine Xykis2024–now

President

  1. Ryan A. Neely2007
  2. Gary S. Winemaster2011–2013

Chief financial officer

  1. Thomas J. Somodi2011
  2. Daniel P. Gorey2012–2015
  3. Timothy J. Cunningham2017
  4. Charles F. Avery Jr.2017–2019
  5. Xun Li2022–now

Chief operating officer

  1. Thomas J. Somodi2011
  2. Eric A. Cohen2012–2015
2010201520202025
Board members and other officers (37)

Former names

  • FORMAT INC /FA/Nov 4, 2003 to Jan 14, 20042
  • FORMAT INCAug 26, 2002 to May 3, 20112

Timeline

  1. Oct 9, 2024New chief executive Constantine Xykis becomes CEO11
  2. Mar 25, 2022New chief executive Lance Michael Arnett becomes CEO12
  3. Aug 12, 2011Founded POWER SOLUTIONS INTERNATIONAL, INC. is founded56
  4. May 9, 2011New chief executive Gary S. Winemaster becomes CEO13

Filings

288 filings to the SEC since October 2021: 10 annual reports, 15 quarterly reports, 63 major events, 140 insider forms, 17 large holders, 43 other. The latest 20:

  1. Sep 30, 20268-K EDGAR
  2. Aug 17, 20264 EDGAR
  3. Aug 17, 20263 EDGAR
  4. Aug 14, 2026SCHEDULE 13G/A EDGAR
  5. Aug 6, 20268-K EDGAR
  6. Aug 6, 202610-Q EDGAR
  7. Jul 27, 20268-K EDGAR
  8. Jun 9, 2026DEFA14A EDGAR
  9. Jun 9, 2026DEF 14A EDGAR
  10. May 22, 2026SCHEDULE 13G EDGAR
  11. May 20, 2026SD EDGAR
  12. May 13, 20268-K EDGAR
  13. May 11, 20268-K EDGAR
  14. May 11, 202610-Q EDGAR
  15. Apr 30, 202610-K/A EDGAR
  16. Apr 17, 20264 EDGAR
  17. Apr 17, 20264 EDGAR
  18. Mar 13, 20268-K EDGAR
  19. Mar 11, 20268-K EDGAR
  20. Mar 2, 20268-K EDGAR

The 288 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 17 such filings since October 2021, the latest 10:

  1. Aug 14, 2026SCHEDULE 13G/A
  2. May 22, 2026SCHEDULE 13G
  3. Sep 22, 2025SCHEDULE 13D/A
  4. Aug 28, 2025SCHEDULE 13D/A
  5. Aug 25, 2025SCHEDULE 13D/A
  6. Aug 19, 2025SCHEDULE 13D/A
  7. Aug 15, 2025SCHEDULE 13D/A
  8. Aug 7, 2025SCHEDULE 13D/A
  9. Apr 23, 2025SCHEDULE 13D/A
  10. Feb 14, 2025SCHEDULE 13G/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Point72 Asset Management, L.P.1,497,155$58.2M0.1%+1,491,805
BlackRock, Inc.818,968$31.8M0.0%+103,412
Newtyn Management, LLC600,890$23.4M2.9%New
Vanguard Capital Management LLC340,634$13.2M0.0%−340
Yunqi Capital Ltd339,000$13.2M10.6%New
Barclays PLC311,110$12.1M0.0%+72,064
Dimensional Fund Advisors LP296,812$11.5M0.0%+13,571
OLP CAPITAL MANAGEMENT Ltd283,940$11.0M2.8%New
Busey Bank220,000$8.6M0.2%No change
Geode Capital Management, LLC216,235$8.4M0.0%+19,938
Millennium Management LLC206,942$8.0M0.0%+109,062
State Street Corp184,855$7.2M0.0%+14,108
Alliancebernstein L.P.98,700$6.0M0.0%+65,260
Goldman Sachs Group Inc147,333$5.7M0.0%+103,027
First Trust Advisors LP146,750$5.7M0.0%+60,627
Yiheng Capital Management, L.P.133,500$5.2M2.2%New
Meros Investment Management, LP129,266$5.0M1.6%+90,000
Morgan Stanley113,003$4.4M0.0%−54,034
Two Sigma Investments, LP108,961$4.2M0.0%+62,590
Hel Ved Capital Management Ltd100,876$3.9M0.6%No change
Valiant Capital Management, L.P.81,674$3.2M0.2%+12,286
Northern Trust Corp74,796$2.9M0.0%−5,303
Tidal Investments LLC72,447$2.8M0.0%+43,068
Vanguard Portfolio Management LLC70,150$2.7M0.0%−35,079
Defiance ETFs, LLC72,881$2.7M0.0%+52,013

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

7 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Nov 20, 2020Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+1340.3%Report
Sep 24, 2020Tom MalinowskiDemocratic, HouseSale$15,001 - $50,000−1506.9%Report
Aug 25, 2020Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+1181.8%Report
May 7, 2020Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+541.6%Report
Jan 2, 2020Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+310.3%Report
Dec 30, 2019Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+544.4%Report
May 15, 2019Tom MalinowskiDemocratic, HouseBuy$1,001 - $15,000+270.6%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

Sources

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