As of July 24, 2026, Power Solutions International's top three insider holders 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 |
|---|---|---|---|---|
| Neil Gagnon | - | 507,869 | 902,205 | 02 May, 2024 |
| Frank P Simpkins | - | 30,000 | 0 | 12 Dec, 2025 |
| Kenneth W Landini | - | 59,000 | 0 | 16 Dec, 2024 |
| Gary S Winemaster | President, Ceo Cob | 2,184,109 | 0 | 23 Apr, 2025 |
| America Corp. Weichai | - | 0 | 10,599,759 | 15 Sep, 2025 |
| Courtney C. Shea | - | 5,000 | 0 | 12 Dec, 2025 |
| Hong He | - | 23,750 | 0 | 12 Dec, 2025 |
| Constantine Xykis | Ceo | 33,859 | 0 | 09 Oct, 2024 |
| Guogang Wu | - | 4,304 | 0 | 24 Jan, 2022 |
| Fabrizio Mozzi | - | 7,917 | 0 | 16 Sep, 2022 |
| Xun Li | Cfo | 4,592 | 0 | 17 Feb, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Mar, 2026 | Xun Li | Phantom Stock | A | 1,665 | $0.00 | 1,665 | D | A |
| 06 Mar, 2026 | Zhaoying Du | Phantom Stock | A | 1,492 | $0.00 | 1,492 | D | A |
| 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 | Hong He | Common Stock | A | 5,000 | $0.00 | 23,750 | D | A |
| 11 Dec, 2025 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 11 Dec, 2025 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 11 Dec, 2025 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 11 Dec, 2025 | Courtney C. Shea | Common Stock | A | 5,000 | $0.00 | 5,000 | D | A |
| 11 Dec, 2025 | Frank P Simpkins | Common Stock | A | 5,000 | $0.00 | 30,000 | D | A |
| 11 Dec, 2025 | Frank P Simpkins | Common Stock | A | 5,000 | $0.00 | 30,000 | 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 | Frank P Simpkins | Common Stock | A | 5,000 | $0.00 | 30,000 | 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 | 6,738 | $91.72 | 10,672,860 | I | S |
| 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 | 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 |