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Disclosery

BlackRock, Inc.: KOS position timeline

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

BlackRock, Inc. held 56,023,521 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 56,023,521 shares
    Change vs previous 13F +8,560,427 shares

    <0.01% of the 13F portfolio, value $118,209,630.

    13F-HR 0002012383-26-003238 filed by BlackRock, Inc.
    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 47,463,094 shares
    Change vs previous 13F -2,679,751 shares

    <0.01% of the 13F portfolio, value $131,947,401.

    13F-HR 0002012383-26-001841 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2024-09-30
    13F 50,142,845 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $202,075,664.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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