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BlackRock, Inc.: RBBN position timeline

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

BlackRock, Inc. held 7,146,590 RBBN 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 7,146,590 shares
    Change vs previous 13F +422,583 shares

    <0.01% of the 13F portfolio, value $16,723,023.

    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 6,724,007 shares
    Change vs previous 13F -941,918 shares

    <0.01% of the 13F portfolio, value $14,254,896.

    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 7,665,925 shares
    Change vs previous 13F -32,880 shares

    <0.01% of the 13F portfolio, value $22,077,863.

    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 7,698,805 shares
    Change vs previous 13F -40,030 shares

    <0.01% of the 13F portfolio, value $29,255,459.

    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 7,738,835 shares
    Change vs previous 13F -50,070 shares

    <0.01% of the 13F portfolio, value $31,032,730.

    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 7,788,905 shares
    Change vs previous 13F -1,556 shares

    <0.01% of the 13F portfolio, value $30,532,508.

    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 7,790,461 shares
    Change vs previous 13F +108,702 shares

    <0.01% of the 13F portfolio, value $32,408,318.

    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 7,681,759 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $24,965,717.

    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).