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RUSH ISLAND MANAGEMENT, LP: KRC position timeline

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

RUSH ISLAND MANAGEMENT, LP held 2,945,755 KRC 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 2,945,755 shares
    Change vs previous 13F -1,914,987 shares

    7.31% of the 13F portfolio, value $110,377,440.

    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 4,860,742 shares
    Change vs previous 13F +2,226,821 shares

    9.2% of the 13F portfolio, value $137,121,532.

    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 2,633,921 shares
    Change vs previous 13F -157,942 shares

    6.15% of the 13F portfolio, value $98,429,628.

    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 2,791,863 shares
    Change vs previous 13F -1,258,211 shares

    8.09% of the 13F portfolio, value $117,956,212.

    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 4,050,074 shares
    Change vs previous 13F -388,665 shares

    9.05% of the 13F portfolio, value $138,958,039.

    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 4,438,739 shares
    Change vs previous 13F +1,731,637 shares

    9.26% of the 13F portfolio, value $145,413,090.

    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).

  7. period ended2024-12-31
    13F 2,707,102 shares
    Change vs previous 13F not available

    7.28% of the 13F portfolio, value $109,502,276.

    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).