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RUSH ISLAND MANAGEMENT, LP: O position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RUSH ISLAND MANAGEMENT, LP on O, newest first. How the timeline and the estimate are built.

RUSH ISLAND MANAGEMENT, LP held 0 O shares at 2026-03-31 per its 13F-HR filed 2026-05-15.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -2,004,065 shares

    13F-HR 0001214659-26-006469 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 2,004,065 shares
    Change vs previous 13F -81,329 shares

    7.06% of the 13F portfolio, value $112,969,144.

    13F-HR 0001214659-26-001981 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 2,085,394 shares
    Change vs previous 13F -289,100 shares

    8.69% of the 13F portfolio, value $126,771,101.

    13F-HR 0001214659-25-016635 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 2,374,494 shares
    Change vs previous 13F -419,042 shares

    8.91% of the 13F portfolio, value $136,794,599.

    13F-HR 0001214659-25-012229 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 2,793,536 shares
    Change vs previous 13F -414,334 shares

    10.32% of the 13F portfolio, value $162,053,023.

    13F-HR 0001214659-25-007835 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 3,207,870 shares
    Change vs previous 13F -315,850 shares

    11.39% of the 13F portfolio, value $171,332,337.

    13F-HR 0001214659-25-002846 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 3,523,720 shares
    Change vs previous 13F not available

    17.27% of the 13F portfolio, value $223,474,322.

    13F-HR 0001214659-24-019143 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

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