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Disclosery

BlackRock, Inc.: OSTX position timeline

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

BlackRock, Inc. held 242,479 OSTX 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 242,479 shares
    Change vs previous 13F +177,707 shares

    <0.01% of the 13F portfolio, value $460,710.

    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 64,772 shares
    Change vs previous 13F +3,347 shares

    <0.01% of the 13F portfolio, value $91,329.

    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 61,425 shares
    Change vs previous 13F +13,262 shares

    <0.01% of the 13F portfolio, value $85,995.

    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 48,163 shares
    Change vs previous 13F +17,882 shares

    <0.01% of the 13F portfolio, value $94,399.

    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 30,281 shares
    Change vs previous 13F -7,226 shares

    <0.01% of the 13F portfolio, value $56,929.

    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 37,507 shares
    Change vs previous 13F +34,364 shares

    <0.01% of the 13F portfolio, value $57,761.

    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 3,143 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $13,452.

    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).