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RUSH ISLAND MANAGEMENT, LP: FR position timeline

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

RUSH ISLAND MANAGEMENT, LP held 1,282,572 FR shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,282,572 shares
    Change vs previous 13F -471,772 shares

    5.21% of the 13F portfolio, value $78,634,489.

    13F-HR 0001214659-26-010384 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).

  2. period ended2026-03-31
    13F 1,754,344 shares
    Change vs previous 13F -325,198 shares

    6.81% of the 13F portfolio, value $101,488,800.

    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).

  3. period ended2025-12-31
    13F 2,079,542 shares
    Change vs previous 13F +25,713 shares

    7.44% of the 13F portfolio, value $119,095,370.

    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).

  4. period ended2025-09-30
    13F 2,053,829 shares
    Change vs previous 13F +393,655 shares

    7.25% of the 13F portfolio, value $105,710,579.

    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).

  5. period ended2025-06-30
    13F 1,660,174 shares
    Change vs previous 13F +1,660,174 shares

    5.2% of the 13F portfolio, value $79,904,175.

    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).

  6. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -1,640,530 shares

    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).

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

  7. period ended2024-12-31
    13F 1,640,530 shares
    Change vs previous 13F +553,567 shares

    5.47% of the 13F portfolio, value $82,239,769.

    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).

  8. period ended2024-09-30
    13F 1,086,963 shares
    Change vs previous 13F not available

    4.7% of the 13F portfolio, value $60,848,189.

    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).