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GAMCO Investors (Gabelli): ACA position timeline

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

GAMCO Investors (Gabelli) held 382,910 ACA 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 382,910 shares
    Change vs previous 13F +58,655 shares

    0.2% of the 13F portfolio, value $55,632,994.

    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: 173,151 shares
    • GABELLI & Co INVESTMENT ADVISERS, INC.: 27,791 shares
    • GABELLI FUNDS LLC: 181,968 shares

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

  2. period ended2026-03-31
    13F 324,255 shares
    Change vs previous 13F -4,596 shares

    0.14% of the 13F portfolio, value $34,416,426.

    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: 179,271 shares
    • GABELLI FUNDS LLC: 144,984 shares

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

  3. period ended2025-12-31
    13F 328,851 shares
    Change vs previous 13F +2,663 shares

    0.14% of the 13F portfolio, value $34,963,439.

    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: 184,721 shares
    • GABELLI FUNDS LLC: 144,130 shares

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

  4. period ended2025-09-30
    13F 326,188 shares
    Change vs previous 13F -7,528 shares

    0.12% of the 13F portfolio, value $30,567,078.

    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: 183,238 shares
    • GABELLI FUNDS LLC: 142,950 shares

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

  5. period ended2025-06-30
    13F 333,716 shares
    Change vs previous 13F -2,982 shares

    0.12% of the 13F portfolio, value $28,936,514.

    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: 187,782 shares
    • GABELLI FUNDS LLC: 145,934 shares

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

  6. period ended2025-03-31
    13F 336,698 shares
    Change vs previous 13F -790 shares

    0.12% of the 13F portfolio, value $25,966,150.

    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: 188,907 shares
    • GABELLI FUNDS LLC: 147,791 shares

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

  7. period ended2024-12-31
    13F 337,488 shares
    Change vs previous 13F -40,034 shares

    0.14% of the 13F portfolio, value $32,648,589.

    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: 191,037 shares
    • GABELLI FUNDS LLC: 146,451 shares

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

  8. period ended2024-09-30
    13F 377,522 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $35,773,985.

    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: 211,471 shares
    • GABELLI FUNDS LLC: 166,051 shares

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