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GAMCO Investors (Gabelli): IBKR position timeline

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

GAMCO Investors (Gabelli) held 375,621 IBKR 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 375,621 shares
    Change vs previous 13F -5,110 shares

    0.12% of the 13F portfolio, value $32,694,052.

    13F-HR 0001140361-26-032509 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 16,475 shares
    • GABELLI FUNDS LLC: 359,146 shares

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

  2. period ended2026-03-31
    13F 380,731 shares
    Change vs previous 13F -1,634 shares

    0.1% of the 13F portfolio, value $25,535,628.

    13F-HR 0001140361-26-021337 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 17,475 shares
    • GABELLI FUNDS LLC: 363,256 shares

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

  3. period ended2025-12-31
    13F 382,365 shares
    Change vs previous 13F -15,791 shares

    0.1% of the 13F portfolio, value $24,589,893.

    13F-HR 0001140361-26-003893 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 17,325 shares
    • GABELLI FUNDS LLC: 365,040 shares

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

  4. period ended2025-09-30
    13F 398,156 shares
    Change vs previous 13F -26,689 shares

    0.11% of the 13F portfolio, value $27,397,114.

    13F-HR 0001140361-25-041671 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 17,425 shares
    • GABELLI FUNDS LLC: 380,731 shares

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

  5. period ended2025-06-30
    13F 424,845 shares
    Change vs previous 13F +325,649 shares

    0.1% of the 13F portfolio, value $23,540,662.

    13F-HR 0001140361-25-030816 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 23,080 shares
    • GABELLI FUNDS LLC: 401,765 shares

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

  6. period ended2025-03-31
    13F 99,196 shares
    Change vs previous 13F -12,240 shares

    0.07% of the 13F portfolio, value $16,425,866.

    13F-HR 0001140361-25-018974 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 5,030 shares
    • GABELLI FUNDS LLC: 94,166 shares

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

  7. period ended2024-12-31
    13F 111,436 shares
    Change vs previous 13F -10,414 shares

    0.09% of the 13F portfolio, value $19,687,399.

    13F-HR 0001140361-25-004328 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 5,050 shares
    • GABELLI FUNDS LLC: 106,386 shares

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

  8. period ended2024-09-30
    13F 121,850 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $16,981,016.

    13F-HR 0001140361-24-046503 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 5,650 shares
    • GABELLI FUNDS LLC: 116,200 shares

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