11 institutions reported holding $322.2M of GENERAL MTRS CO (GM.WSA) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($143.2M), JPMORGAN CHASE & CO ($47.8M), GROUP ONE TRADING LLC ($44.0M), SIMPLEX TRADING, LLC ($29.5M), Optiver Holding B.V. ($25.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $143.2M | 1.9M | Trimmed |
| 2 | JPMORGAN CHASE & CO | $47.8M | 618,100 | Added |
| 3 | GROUP ONE TRADING LLC | $44.0M | 570,800 | Added |
| 4 | SIMPLEX TRADING, LLC | $29.5M | 383,000 | Trimmed |
| 5 | Optiver Holding B.V. | $25.4M | 330,000 | Trimmed |
| 6 | CMT Capital Markets Trading GmbH | $19.2M | 249,400 | Added |
| 7 | Capital Markets Trading UK LLP | $6.7M | 87,000 | Trimmed |
| 8 | Maven Securities LTD | $5.3M | 68,200 | New |
| 9 | SG Americas Securities, LLC | $694,000 | 58,500 | Trimmed |
| 10 | Alpine Global Management, LLC | $320,174 | 385 | Hold |
| 11 | Vermillion Wealth Management, Inc. | $10,724 | 10,000 | New |
Source: SEC Form 13F filings · as of 2026-06-30