MPLX LP COM UNIT REP LTD is a security (CUSIP 55336V950) tracked across SEC portfolio filings. 4 institutional managers reported $11.1M on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $8.2M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $1.9M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $1.0M | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |