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Disclosery

ALLIANCEBERNSTEIN L.P.: RBBN position timeline

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

ALLIANCEBERNSTEIN L.P. held 138,173 RBBN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 138,173 shares
    Change vs previous 13F +18,024 shares

    <0.01% of the 13F portfolio, value $292,927.

    13F-HR 0001109448-26-000261 filed by ALLIANCEBERNSTEIN L.P.
    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 120,149 shares
    Change vs previous 13F +899 shares

    <0.01% of the 13F portfolio, value $346,029.

    13F-HR 0001109448-26-000101 filed by ALLIANCEBERNSTEIN L.P.
    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 119,250 shares
    Change vs previous 13F -67 shares

    <0.01% of the 13F portfolio, value $343,440.

    13F-HR 0001109448-26-000021 filed by ALLIANCEBERNSTEIN L.P.
    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 119,317 shares
    Change vs previous 13F +6,000 shares

    <0.01% of the 13F portfolio, value $453,405.

    13F-HR 0001109448-25-000079 filed by ALLIANCEBERNSTEIN L.P.
    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 113,317 shares
    Change vs previous 13F +14,430 shares

    <0.01% of the 13F portfolio, value $454,401.

    13F-HR 0001532155-25-000161 filed by ALLIANCEBERNSTEIN L.P.
    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 98,887 shares
    Change vs previous 13F -70 shares

    <0.01% of the 13F portfolio, value $387,637.

    13F-HR 0001532155-25-000116 filed by ALLIANCEBERNSTEIN L.P.
    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 98,957 shares
    Change vs previous 13F -4,153 shares

    <0.01% of the 13F portfolio, value $411,661.

    13F-HR 0001532155-25-000050 filed by ALLIANCEBERNSTEIN L.P.
    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 103,110 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $335,108.

    13F-HR 0001532155-24-000162 filed by ALLIANCEBERNSTEIN L.P.
    Filed (acceptance time not in the bulk data set), ingested

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