🕵️ Power Solutions International, Inc. ($PSIX)
SEC insider & ownership activity, last 12 months · CIK 1137091 · every row links its SEC filing
Over the last 12 months insiders sold $106.5M against $28K of open-market buying. Weichai America Corp. sold $100.3M (Aug–Sep). Weichai Power Co., Ltd. trimmed 48.7% → 47.5%; Shandong Heavy Industry Group Co., Ltd. trimmed 48.7% → 47.5%. No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $28K (1 lots) · 5 sellers, $106.5M (117 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Weichai America Corp. | 0 | – | 97 | $100.3M | Sep 11, 2025 |
| Xykis Constantine | 0 | – | 3 | $3.2M | Sep 9, 2025 |
| Frank P. Simpkins | 0 | – | 7 | $1.4M | Aug 25, 2025 |
| Hong He | 0 | – | 6 | $916K | Sep 11, 2025 |
| Li Xun | 1 | $28K | 4 | $739K | Aug 25, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Weichai Power Co., Ltd. | 47.5% | 13D | Aug 21, 2025 | filing ↗ | |
| Shandong Heavy Industry Group Co., Ltd. | 47.5% | 13D | Aug 21, 2025 | filing ↗ | |
| Weichai Power Co., Ltd. | 46.5% | 13D | Aug 26, 2025 | filing ↗ | |
| Shandong Heavy Industry Group Co., Ltd. | 46.5% | 13D | Aug 26, 2025 | filing ↗ | |
| Weichai America Corp. | 46.5% | 13D | Aug 26, 2025 | filing ↗ | |
| Gary S. Winemaster | 6.3% | 13D | Sep 18, 2025 | filing ↗ | |
| Neil Gagnon | 5.0% | 13G | Feb 14, 2025 | filing ↗ | |
| POINT72 Asset Management, L.P. | 5.0% | 13G | May 22, 2026 | filing ↗ | |
| POINT72 Capital Advisors, Inc. | 5.0% | 13G | May 22, 2026 | filing ↗ | |
| Steven A. Cohen | 5.0% | 13G | May 22, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Kenneth W. Landini | $371K | Sep 29, 2025 | filing ↗ |
| Kenneth W. Landini | $600K | Sep 18, 2025 | filing ↗ |
| Hong He | $141K | Sep 11, 2025 | filing ↗ |
| Hong He | $95K | Sep 10, 2025 | filing ↗ |
| Hong He | $366K | Sep 9, 2025 | filing ↗ |
| Xykis Constantine | $663K | Sep 9, 2025 | filing ↗ |
| Hong He | $89K | Sep 8, 2025 | filing ↗ |
| Kenneth W. Landini | $595K | Sep 5, 2025 | filing ↗ |
| Frank P. Simpkins | $913K | Aug 25, 2025 | filing ↗ |
| Xun Li | $750K | Aug 25, 2025 | filing ↗ |
| Hong He | $225K | Aug 13, 2025 | filing ↗ |
| Frank P. Simpkins | $474K | Aug 12, 2025 | filing ↗ |
| Weichai America Corp. | $100.0M | Aug 12, 2025 | filing ↗ |
| Xykis Constantine | $2.5M | Aug 12, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jul 23, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jul 23, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 11, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 6, 2026 | filing ↗ |
| Earnings (2.02) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 9, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 15, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 15, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |
| Material agreement (1.01) | Jul 31, 2025 | filing ↗ |
| New financial obligation (2.03) | Jul 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 31, 2025 | filing ↗ |