Power Solutions International's top three insider shareholders as of April 22, 2026 are America Corp. Weichai (TenPercentOwner, 10.60Mn shares), Gary S Winemaster (President, Ceo Cob, 2.18Mn shares), Neil Gagnon (TenPercentOwner, 1.41Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| America Corp. Weichai | - | 0 | 10,599,759 | 15 Sep, 2025 |
| Gary S Winemaster | President, Ceo Cob | 2,184,109 | 0 | 23 Apr, 2025 |
| Neil Gagnon | - | 507,869 | 902,205 | 02 May, 2024 |
| Kenneth W Landini | - | 59,000 | 0 | 16 Dec, 2024 |
| Constantine Xykis | Ceo | 33,859 | 0 | 09 Oct, 2024 |
| Frank P Simpkins | - | 30,000 | 0 | 12 Dec, 2025 |
| Hong He | - | 23,750 | 0 | 12 Dec, 2025 |
| Fabrizio Mozzi | - | 7,917 | 0 | 16 Sep, 2022 |
| Courtney C. Shea | - | 5,000 | 0 | 12 Dec, 2025 |
| Xun Li | Cfo | 4,592 | 0 | 17 Feb, 2026 |
| Guogang Wu | - | 4,304 | 0 | 24 Jan, 2022 |
| Gary S Winemaster | - | 0 | 681 | 06 Sep, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Feb, 2026 | Xun Li | Common Stock | A | 7,500 | $2.00 | 8,021 | D | M |
| 12 Feb, 2026 | Xun Li | Common Stock | D | 3,429 | $92.72 | 4,592 | D | F |
| 12 Feb, 2026 | Xun Li | Stock Appreciation Rights | D | 7,500 | $0.00 | 7,500 | D | M |
| 11 Dec, 2025 | Zhaoying Du | Stock Appreciation Right | A | 700 | $0.00 | 700 | D | A |
| 11 Dec, 2025 | Frank P Simpkins | Common Stock | A | 5,000 | $0.00 | 30,000 | D | A |
| 11 Dec, 2025 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 11 Dec, 2025 | Hong He | Common Stock | A | 5,000 | $0.00 | 23,750 | D | A |
| 11 Sep, 2025 | America Corp. Weichai | Common Stock | D | 6,738 | $91.72 | 10,672,860 | I | S |
| 11 Sep, 2025 | America Corp. Weichai | Common Stock | D | 19,351 | $92.46 | 10,653,509 | I | S |
| 11 Sep, 2025 | America Corp. Weichai | Common Stock | D | 23,231 | $93.64 | 10,630,278 | I | S |
| 11 Sep, 2025 | America Corp. Weichai | Common Stock | D | 30,519 | $94.33 | 10,599,759 | I | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 6,308 | $90.28 | 10,709,844 | I | S |
| 10 Sep, 2025 | Hong He | Common Stock | D | 1,000 | $95.00 | 20,250 | D | S |
| 11 Sep, 2025 | Hong He | Common Stock | D | 1,500 | $94.00 | 18,750 | D | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 5,018 | $91.44 | 10,704,826 | I | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 14,557 | $92.34 | 10,690,269 | I | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 2,515 | $93.50 | 10,687,754 | I | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 7,585 | $94.45 | 10,680,169 | I | S |
| 10 Sep, 2025 | America Corp. Weichai | Common Stock | D | 571 | $95.20 | 10,679,598 | I | S |
| 09 Sep, 2025 | Constantine Xykis | Common Stock | D | 7,854 | $91.31 | 0 | D | S |