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BlackRock, Inc.: SIBN position timeline

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

BlackRock, Inc. held 3,676,259 SIBN 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 3,676,259 shares
    Change vs previous 13F +247,718 shares

    <0.01% of the 13F portfolio, value $59,996,547.

    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 3,428,541 shares
    Change vs previous 13F -58,932 shares

    <0.01% of the 13F portfolio, value $43,302,473.

    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 3,487,473 shares
    Change vs previous 13F +32,354 shares

    <0.01% of the 13F portfolio, value $68,772,966.

    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 3,455,119 shares
    Change vs previous 13F -14,382 shares

    <0.01% of the 13F portfolio, value $50,859,351.

    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 3,469,501 shares
    Change vs previous 13F -259,980 shares

    <0.01% of the 13F portfolio, value $65,296,010.

    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 3,729,481 shares
    Change vs previous 13F -104,844 shares

    <0.01% of the 13F portfolio, value $52,324,619.

    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 3,834,325 shares
    Change vs previous 13F -57,219 shares

    <0.01% of the 13F portfolio, value $53,757,237.

    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 3,891,544 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $54,403,784.

    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).