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Disclosery

BlackRock, Inc.: OLN position timeline

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

BlackRock, Inc. held 11,984,254 OLN 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 11,984,254 shares
    Change vs previous 13F +497,398 shares

    <0.01% of the 13F portfolio, value $237,527,921.

    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 11,486,856 shares
    Change vs previous 13F -464,857 shares

    0.01% of the 13F portfolio, value $341,504,237.

    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 ended2025-12-31
    13F 11,951,713 shares
    Change vs previous 13F -615,965 shares

    <0.01% of the 13F portfolio, value $248,954,190.

    13F-HR 0002012383-26-000920 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).

  4. period ended2025-09-30
    13F 12,567,678 shares
    Change vs previous 13F -141,668 shares

    0.01% of the 13F portfolio, value $314,066,270.

    13F-HR 0002012383-25-002949 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).

  5. period ended2025-06-30
    13F 12,709,346 shares
    Change vs previous 13F +567,490 shares

    <0.01% of the 13F portfolio, value $255,330,762.

    13F-HR 0001060021-25-000120 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).

  6. period ended2025-03-31
    13F 12,141,856 shares
    Change vs previous 13F +497,850 shares

    0.01% of the 13F portfolio, value $294,318,591.

    13F-HR 0001576419-25-000869 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).

  7. period ended2024-12-31
    13F 11,644,006 shares
    Change vs previous 13F -152,535 shares

    0.01% of the 13F portfolio, value $393,567,416.

    13F-HR 0001060021-25-000002 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).

  8. period ended2024-09-30
    13F 11,796,541 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $565,998,013.

    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).