Skip to content
Disclosery

Stembrook Asset Management, LLC: MPC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Stembrook Asset Management, LLC on MPC, newest first. How the timeline and the estimate are built.

Stembrook Asset Management, LLC held 2,556 MPC shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,556 shares
    Change vs previous 13F 0 shares

    0.56% of the 13F portfolio, value $653,493.

    13F-HR 0002109734-26-000006 filed by Stembrook Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 2,556 shares
    Change vs previous 13F 0 shares

    0.61% of the 13F portfolio, value $624,125.

    13F-HR 0002109734-26-000004 filed by Stembrook Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 2,556 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $415,683.

    13F-HR 0002109734-26-000002 filed by Stembrook Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).