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GAMCO Investors (Gabelli): GHC position timeline

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

GAMCO Investors (Gabelli) held 24,188 GHC 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 24,188 shares
    Change vs previous 13F -380 shares

    0.1% of the 13F portfolio, value $27,608,666.

    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: 13,094 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,094 shares
    • GABELLI FUNDS LLC: 9,000 shares

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

  2. period ended2026-03-31
    13F 24,568 shares
    Change vs previous 13F -75 shares

    0.1% of the 13F portfolio, value $25,974,763.

    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: 13,474 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,094 shares
    • GABELLI FUNDS LLC: 9,000 shares

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

  3. period ended2025-12-31
    13F 24,643 shares
    Change vs previous 13F +120 shares

    0.1% of the 13F portfolio, value $27,072,799.

    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: 13,549 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,094 shares
    • GABELLI FUNDS LLC: 9,000 shares

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

  4. period ended2025-09-30
    13F 24,523 shares
    Change vs previous 13F -253 shares

    0.11% of the 13F portfolio, value $28,871,173.

    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: 13,429 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,094 shares
    • GABELLI FUNDS LLC: 9,000 shares

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

  5. period ended2025-06-30
    13F 24,776 shares
    Change vs previous 13F -297 shares

    0.09% of the 13F portfolio, value $23,442,308.

    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: 13,529 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,097 shares
    • GABELLI FUNDS LLC: 9,150 shares

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

  6. period ended2025-03-31
    13F 25,073 shares
    Change vs previous 13F -670 shares

    0.11% of the 13F portfolio, value $24,091,643.

    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: 13,651 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,122 shares
    • GABELLI FUNDS LLC: 9,300 shares

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

  7. period ended2024-12-31
    13F 25,743 shares
    Change vs previous 13F +37 shares

    0.1% of the 13F portfolio, value $22,445,836.

    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: 14,321 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 2,122 shares
    • GABELLI FUNDS LLC: 9,300 shares

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

  8. period ended2024-09-30
    13F 25,706 shares
    Change vs previous 13F not available

    0.09% of the 13F portfolio, value $21,123,135.

    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: 15,887 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 319 shares
    • GABELLI FUNDS LLC: 9,500 shares

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