6 institutions reported holding $47.8M of ALLY FINL INC (ALLY-PB) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($18.7M), JPMORGAN CHASE & CO ($11.4M), SIMPLEX TRADING, LLC ($6.8M), GROUP ONE TRADING LLC ($6.7M), HRT FINANCIAL LP ($4.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $18.7M | 476,400 | Added |
| 2 | JPMORGAN CHASE & CO | $11.4M | 300,000 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $6.8M | 172,400 | Trimmed |
| 4 | GROUP ONE TRADING LLC | $6.7M | 171,300 | Trimmed |
| 5 | HRT FINANCIAL LP | $4.2M | 108,200 | Added |
| 6 | OSAIC HOLDINGS, INC. | $500 | 1 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31