Power Solutions International, Inc. insider trading
Every open-market purchase and sale by Power Solutions International, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.
Does following Power Solutions International, Inc.’s insiders pay?
From August 24, 2012 to September 15, 2025, 15 insiders reported 29 open-market purchases and 84 sales not made under a pre-set plan in Power Solutions International, Inc. Twelve months after each purchase was reported, the shares were +13.3% against the S&P 500 on average (median −48.1%), over 14 purchases with a full year of prices; 29% beat the index. After sales, the shares moved +52.3% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 27, 2012 into $5,937 by November 2, 2026, −3.6% a year. It held shares 39% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $27,365 (+7.4% a year), and held throughout $68,309 (+14.6%).
| Insider | Role | Purchases | 12 months after their purchases | Beat the S&P 500 | Sales | 12 months after their sales | Latest report |
|---|---|---|---|---|---|---|---|
| Winemaster Gary S | See Remarks | 4 | −50.2% (4) | 0% | 51 | +117.8% (29) | April 15, 2025 |
| Gagnon Neil | 10% owner | 15 | — | — | 0 | — | May 2, 2024 |
| Weichai America Corp. | 10% owner | 1 | +22.6% (1) | 100% | 5 | −76.5% (5) | August 26, 2025 |
| Weichai Power Co., Ltd. | 10% owner | 0 | — | — | 6 | −76.2% (6) | September 15, 2025 |
| Greenawalt H Samuel | Director | 5 | +127.5% (5) | 60% | 0 | — | September 2, 2014 |
| Cohen Eric A. | Chief Operating Officer | 1 | −58.7% (1) | 0% | 3 | −41.3% (3) | August 13, 2015 |
| He Hong | Director | 0 | — | — | 4 | −75.4% (4) | September 12, 2025 |
| Landini Kenneth W | Director | 0 | — | — | 4 | +194.8% (4) | November 18, 2013 |
| Winemaster Kenneth J | Senior VP and Secretary | 0 | — | — | 4 | +212.0% (4) | July 18, 2013 |
| Li Xun | CFO | 1 | −76.8% (1) | 0% | 1 | −76.8% (1) | August 27, 2025 |
| Shandong Heavy Industry Group Co., Ltd. | 10% owner | 0 | — | — | 2 | −76.9% (2) | August 28, 2025 |
| Simpkins Frank P | Director | 0 | — | — | 2 | −76.9% (2) | August 27, 2025 |
| Xykis Constantine | CEO | 0 | — | — | 2 | −76.0% (2) | September 11, 2025 |
| Gorey Daniel P | Chief Financial Officer | 1 | −62.2% (1) | 0% | 0 | — | August 10, 2015 |
| Lewis Michael | Chief Financial Officer | 1 | −75.2% (1) | 0% | 0 | — | March 7, 2016 |
When several insiders traded Power Solutions International, Inc.
Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Power Solutions International, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 2 buying crowds with six months of prices, it averaged −50.6% against the index. After 2 selling crowds, +16.1%. One company's history is too short to judge by; the test across every company is the better guide.
| Month | Crowd | 3 months on, vs S&P 500 | 6 months | 12 months |
|---|---|---|---|---|
| August 29, 2025 | 7 selling | −41.0% | −32.6% | −76.7% |
| August 31, 2015 | 3 buying | −31.3% | −67.9% | −75.0% |
| June 30, 2014 | 2 buying | −6.2% | −33.2% | −32.2% |
| September 28, 2012 | 3 selling | +4.3% | +64.8% | +255.3% |
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