Power Solutions International, Inc.
A maker of emission-certified engines and integrated power systems, Power Solutions International builds the engines that power forklifts, construction machinery, agricultural equipment, and generators. Founded in 1985 by the Winemaster brothers, the company was long known as "The W Group" before renaming itself Power Solutions International in 2011. Its engines are famously "fuel-agnostic" — the same base design can run on natural gas, propane, gasoline, or diesel, letting customers pick the fuel that suits them.
Bought 200.0K · Sold 1.15M
Granted 45.2K · Sold 703.1K
Bought 12.9K · Sold 1.84M
Bought 227.8K
Granted 91.0K
Granted 40.0K · Sold 30.2K
Granted 40.0K
Granted 45.0K · Sold 15.0K
Granted 120.2K · Sold 33.9K
Granted 33.8K · Sold 10.0K
Granted 30.0K
Granted 15.0K
Granted 7.9K
Bought 7.8K
Granted 5.0K
Granted 22.5K · Bought 300 · Sold 8.0K
Granted 4.3K
Granted 3.3K · Bought 500
Bought 1.0K
Granted 241.3K · Bought 510 · Sold 140.1K
Granted 5.0K
Granted 5.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Weichai America Corp. +2 co-filers10% owner · 99 transactions | — | 10.60M | — | 200.0K | 1.15M |
| Winemaster Kenneth JExecutive Vice President · 13 transactions | — | 2.21Mas of Mar 2019 | 45.2K | — | 703.1K |
| Winemaster Gary Sformer 10% owner · 182 transactions | — | 2.18Mas of Apr 2025 | — | 12.9K | 1.84M |
| Gagnon Neil10% owner · 53 transactions | — | 2.10Mas of Oct 2024 | — | 227.8K | — |
| Miller John P.CEO and President · 4 transactions | — | 76.0Kas of May 2019 | 91.0K | — | — |
| Landini Kenneth WDirector · 22 transactions | — | 59.0Kas of Dec 2024 | 40.0K | — | 30.2K |
| Lin Jason C.Chief Technical Officer · 4 transactions | — | 35.6Kas of Jul 2020 | 40.0K | — | — |
| Simpkins Frank PDirector · 16 transactions | — | 30.0K | 45.0K | — | 15.0K |
| Xykis ConstantineCEO · 19 transactions | — | 26.8K | 120.2K | — | 33.9K |
| He HongDirector · 13 transactions | — | 23.8K | 33.8K | — | 10.0K |
| Avery Charles F JrChief Financial Officer · 3 transactions | — | 20.8Kas of Jul 2019 | 30.0K | — | — |
| Coolidge Leslie AnneDirector · 3 transactions | — | 15.0Kas of Jul 2019 | 15.0K | — | — |
| Mozzi FabrizioDirector · 2 transactions | — | 7.9Kas of Sep 2022 | 7.9K | — | — |
| Greenawalt H SamuelDirector · 6 transactions | — | 7.8Kas of Aug 2014 | — | 7.8K | — |
| Shea Courtney C.Director · 1 transaction | — | 5.0K | 5.0K | — | — |
| Li XunCFO · 9 transactions | — | 4.6K | 22.5K | 300 | 8.0K |
| Wu GuogangDirector · 2 transactions | — | 4.3Kas of Dec 2021 | 4.3K | — | — |
| Gorey Daniel PChief Financial Officer · 4 transactions | — | 3.1Kas of Aug 2015 | 3.3K | 500 | — |
| Lewis MichaelChief Financial Officer · 1 transaction | — | 1.0Kas of Mar 2016 | — | 1.0K | — |
| Cohen Eric A.Chief Operating Officer · 16 transactions | — | 562.25as of Nov 2015 | 241.3K | 510 | 140.1K |
| Somodi Thomas JSee Remarks · 2 transactions | — | 1as of Oct 2011 | — | — | — |
| Jiang KuiDirector · 2 transactions | — | 0as of Oct 2018 | 5.0K | — | — |
| Neely Ryan APres., Secretary, Treasurer, Director, 10% owner · 1 transaction | — | 0as of Apr 2011 | — | — | — |
| Sun ShaojunDirector · 2 transactions | — | 0as of Oct 2018 | 5.0K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -3.47M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.