QUEST DIAGNOSTICS INC COM is a security (CUSIP 74834L950) tracked across SEC portfolio filings. 3 institutional managers reported $12.2M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $7.1M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $5.1M | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |