Power Solutions International's three largest insider shareholders as of March 23, 2026 are America Corp. Weichai (TenPercentOwner, 10.60Mn shares), Gary S Winemaster (Other, 2.18Mn shares), Neil Gagnon (TenPercentOwner, 628.89K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| America Corp. Weichai | 0 | 10,599,759 | 15 Sep, 2025 | |
| Gary S Winemaster | 2,184,109 | 0 | 23 Apr, 2025 | |
| Neil Gagnon | 507,869 | 121,024 | 02 May, 2024 | |
| Kenneth W Landini | 59,000 | 0 | 16 Dec, 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 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 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 | 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 |