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VANGUARD GROUP INC: RBBN position timeline

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

VANGUARD GROUP INC held 8,177,724 RBBN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 8,177,724 shares
    Change vs previous 13F -88,087 shares

    <0.01% of the 13F portfolio, value $19,135,875.

    13F-HR 0002100119-26-001527 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 612,773 shares
    • Vanguard Global Advisers, LLC: 126,258 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,925,626 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 3,513,067 shares

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

  2. period ended2026-03-31
    13F/A 8,265,811 shares
    Change vs previous 13F +432,802 shares

    <0.01% of the 13F portfolio, value $17,523,519.

    13F-HR/A 0002100119-26-001311 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 587,429 shares
    • Vanguard Global Advisers, LLC: 126,258 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 4,216,459 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 3,335,665 shares

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

  3. period ended2025-12-31
    13F 7,833,009 shares
    Change vs previous 13F +141,939 shares

    <0.01% of the 13F portfolio, value $22,559,066.

    13F-HR 0000102909-26-000031 filed by VANGUARD GROUP 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 7,691,070 shares
    Change vs previous 13F +166,683 shares

    <0.01% of the 13F portfolio, value $29,226,066.

    13F-HR 0000102909-25-000353 filed by VANGUARD GROUP 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 7,524,387 shares
    Change vs previous 13F +66,920 shares

    <0.01% of the 13F portfolio, value $30,172,792.

    13F-HR 0001752724-25-185843 filed by VANGUARD GROUP 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 7,457,467 shares
    Change vs previous 13F +55,394 shares

    <0.01% of the 13F portfolio, value $29,233,272.

    13F-HR 0001752724-25-099331 filed by VANGUARD GROUP 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 7,402,073 shares
    Change vs previous 13F +295,524 shares

    <0.01% of the 13F portfolio, value $30,792,624.

    13F-HR 0001752724-25-022205 filed by VANGUARD GROUP 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 7,106,549 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $23,096,285.

    13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

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