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Disclosery

ARIZONA STATE RETIREMENT SYSTEM: KOS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARIZONA STATE RETIREMENT SYSTEM on KOS, newest first. How the timeline and the estimate are built.

ARIZONA STATE RETIREMENT SYSTEM held 159,576 KOS shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 159,576 shares
    Change vs previous 13F +27,591 shares

    <0.01% of the 13F portfolio, value $336,705.

    13F-HR 0000897069-26-001594 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 131,985 shares
    Change vs previous 13F +21 shares

    <0.01% of the 13F portfolio, value $366,918.

    13F-HR 0000897069-26-000996 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 131,964 shares
    Change vs previous 13F -9,484 shares

    <0.01% of the 13F portfolio, value $119,744.

    13F-HR 0000897069-26-000191 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 141,448 shares
    Change vs previous 13F +1,977 shares

    <0.01% of the 13F portfolio, value $234,804.

    13F-HR 0000897069-25-001611 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 139,471 shares
    Change vs previous 13F +4,111 shares

    <0.01% of the 13F portfolio, value $239,890.

    13F-HR 0000897069-25-001322 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 135,360 shares
    Change vs previous 13F -1,568 shares

    <0.01% of the 13F portfolio, value $308,621.

    13F-HR 0000897069-25-000898 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 136,928 shares
    Change vs previous 13F +1,149 shares

    <0.01% of the 13F portfolio, value $468,294.

    13F-HR 0000897069-25-000186 filed by ARIZONA STATE RETIREMENT SYSTEM
    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 135,779 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $547,189.

    13F-HR 0000897069-24-002139 filed by ARIZONA STATE RETIREMENT SYSTEM
    Filed (acceptance time not in the bulk data set), ingested

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