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IRONWOOD INVESTMENT MANAGEMENT LLC: RBBN position timeline

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

IRONWOOD INVESTMENT MANAGEMENT LLC held 18,030 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 18,030 shares
    Change vs previous 13F -36 shares

    0.01% of the 13F portfolio, value $42,190.

    13F-HR 0001376474-26-000566 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 18,066 shares
    Change vs previous 13F -284 shares

    0.02% of the 13F portfolio, value $38,300.

    13F-HR 0001376474-26-000378 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 18,350 shares
    Change vs previous 13F -52 shares

    0.02% of the 13F portfolio, value $52,848.

    13F-HR 0001376474-26-000161 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 18,402 shares
    Change vs previous 13F -243 shares

    0.03% of the 13F portfolio, value $69,928.

    13F-HR 0001376474-25-000926 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 18,645 shares
    Change vs previous 13F -573 shares

    0.04% of the 13F portfolio, value $74,766.

    13F-HR 0001376474-25-000744 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 19,218 shares
    Change vs previous 13F +54 shares

    0.04% of the 13F portfolio, value $75,335.

    13F-HR 0001376474-25-000466 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 19,164 shares
    Change vs previous 13F +239 shares

    0.04% of the 13F portfolio, value $79,722.

    13F-HR 0001376474-25-000173 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 18,925 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $61,506.

    13F-HR 0001376474-24-000686 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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