GALLAGHER ARTHUR J & CO COM is a security (CUSIP 363576909) tracked across SEC portfolio filings. 6 institutional managers reported $16.5M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $11.5M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $2.8M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $1.4M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $715K | — |
| HRT FINANCIAL LP | NEW YORK, NY | $4K | 19,800 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |