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FIRST WILSHIRE SECURITIES MANAGEMENT INC: RBBN position timeline

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

FIRST WILSHIRE SECURITIES MANAGEMENT INC held 1,404,493 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 1,404,493 shares
    Change vs previous 13F -2,685 shares

    0.68% of the 13F portfolio, value $3,286,514.

    13F-HR 0000732847-26-000014 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,407,178 shares
    Change vs previous 13F +139,592 shares

    0.67% of the 13F portfolio, value $2,983,217.

    13F-HR 0000732847-26-000007 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,267,586 shares
    Change vs previous 13F -37,772 shares

    0.92% of the 13F portfolio, value $3,650,648.

    13F-HR 0000732847-26-000001 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,305,358 shares
    Change vs previous 13F -25,842 shares

    1.32% of the 13F portfolio, value $4,960,360.

    13F-HR 0000732847-25-000017 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,331,200 shares
    Change vs previous 13F -6,014 shares

    1.45% of the 13F portfolio, value $5,338,112.

    13F-HR 0000732847-25-000014 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,337,214 shares
    Change vs previous 13F +2,741 shares

    1.5% of the 13F portfolio, value $5,241,879.

    13F-HR 0000732847-25-000013 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,334,473 shares
    Change vs previous 13F +164,738 shares

    1.51% of the 13F portfolio, value $5,551,000.

    13F-HR 0000732847-25-000001 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 1,169,735 shares
    Change vs previous 13F not available

    1.07% of the 13F portfolio, value $3,802,000.

    13F-HR 0000732847-24-000013 filed by FIRST WILSHIRE SECURITIES MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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