4 institutions reported holding $26.5M of CROWN CASTLE INC (CCI-PA) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($17.9M), GROUP ONE TRADING LLC ($5.0M), SIMPLEX TRADING, LLC ($3.6M), HRT FINANCIAL LP ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $17.9M | 219,600 | Added |
| 2 | GROUP ONE TRADING LLC | $5.0M | 61,900 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $3.6M | 43,900 | Trimmed |
| 4 | HRT FINANCIAL LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31