BLACKROCK INC COM is a security (CUSIP 09290D951) tracked across SEC portfolio filings. 7 institutional managers reported $215.5M on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $97.5M | — |
| Optiver Holding B.V. | AMSTERDAM, P7 | $85.6M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $16.2M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $12.2M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $4.0M | — |
| SG Americas Securities, LLC | NEW YORK, NY | $213 | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |