Skip to content
Disclosery

GAMCO Investors (Gabelli): RDIB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMCO Investors (Gabelli) on RDIB, newest first. How the timeline and the estimate are built.

GAMCO Investors (Gabelli) held 48,700 RDIB shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 48,700 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $414,437.

    13F-HR 0001140361-26-032508 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 34,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  2. period ended2026-03-31
    13F 48,700 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $450,475.

    13F-HR 0001140361-26-021334 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 34,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  3. period ended2025-12-31
    13F 48,700 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $564,920.

    13F-HR 0001140361-26-003895 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 34,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  4. period ended2025-09-30
    13F 48,700 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $543,979.

    13F-HR 0001140361-25-041670 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 34,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  5. period ended2025-06-30
    13F 48,700 shares
    Change vs previous 13F +700 shares

    <0.01% of the 13F portfolio, value $471,903.

    13F-HR 0001140361-25-030814 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 34,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  6. period ended2025-03-31
    13F 48,000 shares
    Change vs previous 13F +3,300 shares

    <0.01% of the 13F portfolio, value $336,960.

    13F-HR 0001140361-25-018975 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 33,300 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  7. period ended2024-12-31
    13F 44,700 shares
    Change vs previous 13F +13,500 shares

    <0.01% of the 13F portfolio, value $379,950.

    13F-HR 0001140361-25-004330 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 30,000 shares
    • GABELLI FUNDS LLC: 14,700 shares

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

  8. period ended2024-09-30
    13F 31,200 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $256,152.

    13F-HR 0001140361-24-046738 filed by GAMCO INVESTORS, INC. ET AL
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 18,500 shares
    • GABELLI FUNDS LLC: 12,700 shares

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