🕵️ General Motors Co ($GM)
SEC insider & ownership activity, last 12 months · CIK 1467858 · every row links its SEC filing
Over the last 12 months insiders sold $225.9M with no open-market buying against it. Mary T. Barra sold $133.6M through a 10b5-1 trading plan in 22 lots (Sep–Jul). BlackRock, Inc. trimmed 9.0% → 7.5%. One red-flag 8-K in the window: Impairment (2.06), Oct 7, 2025.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 6 sellers, $225.9M (48 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Mary T. Barra | 0 | – | 22 | $133.6M | Jul 28, 2026 |
| Mark L. Reuss | 0 | – | 12 | $72.2M | Jul 28, 2026 |
| Rory Harvey | 0 | – | 6 | $9.0M | Jul 27, 2026 |
| Christopher Hatto | 0 | – | 6 | $4.3M | Jul 28, 2026 |
| Dixton Grant Michael | 0 | – | 1 | $3.5M | Aug 3, 2026 |
| Paul A. Jacobson | 0 | – | 1 | $3.2M | May 26, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7.5% | 13G | Apr 17, 2025 | filing ↗ | |
| Vanguard Capital Management | 7.5% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Grant Dixton | $3.6M | Aug 3, 2026 | filing ↗ |
| Christopher Hatto | $600K | Jul 28, 2026 | filing ↗ |
| Mark L. Reuss | $6.2M | Jul 28, 2026 | filing ↗ |
| Mary Barra | $27.7M | Jul 28, 2026 | filing ↗ |
| Rory Harvey | $734K | Jul 27, 2026 | filing ↗ |
| Rory Harvey | $768K | May 28, 2026 | filing ↗ |
| Christopher Hatto | $580K | May 28, 2026 | filing ↗ |
| Mary Barra | $32.1M | May 28, 2026 | filing ↗ |
| Rory Harvey | $6.3M | May 27, 2026 | filing ↗ |
| Paul A. Jacobson | $3.2M | May 26, 2026 | filing ↗ |
| Mary Barra | $25.1M | May 26, 2026 | filing ↗ |
| Rory Harvey | $436K | May 22, 2026 | filing ↗ |
| Mark L. Reuss | $39.0M | Feb 17, 2026 | filing ↗ |
| Christopher Hatto | $550K | Nov 12, 2025 | filing ↗ |
| Christopher Hatto | $1.1M | Oct 28, 2025 | filing ↗ |
| Mark Reuss | $17.3M | Oct 22, 2025 | filing ↗ |
| Rory Harvey | $400K | Sep 26, 2025 | filing ↗ |
| Christopher Hatto | $1.4M | Sep 26, 2025 | filing ↗ |
| Mark Reuss | $8.2M | Sep 25, 2025 | filing ↗ |
| Mark Reuss | $1.6M | Sep 24, 2025 | filing ↗ |
| Mary Barra | $44.2M | Sep 24, 2025 | filing ↗ |
| Mary Barra | $1.4M | Sep 23, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Aug 7, 2026 | filing ↗ |
| New financial obligation (2.03) | Aug 7, 2026 | filing ↗ |
| Other events (8.01) | Aug 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2026 | filing ↗ |
| Earnings (2.02) | Jul 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 21, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 2, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 2, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 26, 2026 | filing ↗ |
| Earnings (2.02) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 23, 2026 | filing ↗ |
| New financial obligation (2.03) | Mar 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 23, 2026 | filing ↗ |
| Earnings (2.02) | Jan 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 27, 2026 | filing ↗ |
| Other events (8.01) | Jan 8, 2026 | filing ↗ |
| Earnings (2.02) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |
| Impairment (2.06) | Oct 7, 2025 | filing ↗ |