3 institutions reported holding $1.0M of ARRAY DIGITAL INFRASTRUCTURE (USM) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($786,842), SIMPLEX TRADING, LLC ($137,788), GROUP ONE TRADING LLC ($87,024). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $786,842 | 21,700 | New |
| 2 | SIMPLEX TRADING, LLC | $137,788 | 3,800 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $87,024 | 2,400 | Added |
Source: SEC Form 13F filings · as of 2026-06-30