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GAMCO Investors (Gabelli): CMCSA position timeline

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

GAMCO Investors (Gabelli) held 885,605 CMCSA 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 885,605 shares
    Change vs previous 13F -400,905 shares

    0.08% of the 13F portfolio, value $21,741,603.

    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: 204,954 shares
    • GABELLI FUNDS LLC: 680,651 shares

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

  2. period ended2026-03-31
    13F 1,286,510 shares
    Change vs previous 13F -17,648 shares

    0.15% of the 13F portfolio, value $36,935,702.

    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: 389,928 shares
    • GABELLI FUNDS LLC: 896,582 shares

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

  3. period ended2025-12-31
    13F 1,304,158 shares
    Change vs previous 13F -109,033 shares

    0.15% of the 13F portfolio, value $38,981,283.

    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: 402,928 shares
    • GABELLI FUNDS LLC: 901,230 shares

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

  4. period ended2025-09-30
    13F 1,413,191 shares
    Change vs previous 13F -13,875 shares

    0.18% of the 13F portfolio, value $44,402,462.

    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: 417,311 shares
    • GABELLI FUNDS LLC: 995,880 shares

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

  5. period ended2025-06-30
    13F 1,427,066 shares
    Change vs previous 13F -87,151 shares

    0.21% of the 13F portfolio, value $50,931,986.

    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: 438,636 shares
    • GABELLI FUNDS LLC: 988,430 shares

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

  6. period ended2025-03-31
    13F 1,514,217 shares
    Change vs previous 13F -94,191 shares

    0.25% of the 13F portfolio, value $55,874,607.

    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: 459,737 shares
    • GABELLI FUNDS LLC: 1,054,480 shares

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

  7. period ended2024-12-31
    13F 1,608,408 shares
    Change vs previous 13F -53,638 shares

    0.26% of the 13F portfolio, value $60,363,552.

    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: 506,928 shares
    • GABELLI FUNDS LLC: 1,101,480 shares

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

  8. period ended2024-09-30
    13F 1,662,046 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $69,423,662.

    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: 520,706 shares
    • GABELLI FUNDS LLC: 1,141,340 shares

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