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GAMCO Investors (Gabelli): AMG position timeline

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

GAMCO Investors (Gabelli) held 8,161 AMG 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 8,161 shares
    Change vs previous 13F +325 shares

    0.01% of the 13F portfolio, value $2,761,682.

    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: 2,350 shares
    • GABELLI FUNDS LLC: 5,811 shares

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

  2. period ended2026-03-31
    13F 7,836 shares
    Change vs previous 13F +2,850 shares

    0.01% of the 13F portfolio, value $2,168,221.

    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: 2,350 shares
    • GABELLI FUNDS LLC: 5,486 shares

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

  3. period ended2025-12-31
    13F 4,986 shares
    Change vs previous 13F -52 shares

    0.01% of the 13F portfolio, value $1,437,364.

    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: 2,000 shares
    • GABELLI FUNDS LLC: 2,986 shares

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

  4. period ended2025-09-30
    13F 5,038 shares
    Change vs previous 13F +255 shares

    <0.01% of the 13F portfolio, value $1,201,210.

    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: 2,775 shares
    • GABELLI FUNDS LLC: 2,263 shares

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

  5. period ended2025-06-30
    13F 4,783 shares
    Change vs previous 13F -500 shares

    <0.01% of the 13F portfolio, value $941,151.

    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: 2,400 shares
    • GABELLI FUNDS LLC: 2,383 shares

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

  6. period ended2025-03-31
    13F 5,283 shares
    Change vs previous 13F -116 shares

    <0.01% of the 13F portfolio, value $887,702.

    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: 2,614 shares
    • GABELLI FUNDS LLC: 2,669 shares

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

  7. period ended2024-12-31
    13F 5,399 shares
    Change vs previous 13F -51 shares

    <0.01% of the 13F portfolio, value $998,383.

    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: 2,600 shares
    • GABELLI FUNDS LLC: 2,799 shares

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

  8. period ended2024-09-30
    13F 5,450 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $969,010.

    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: 2,700 shares
    • GABELLI FUNDS LLC: 2,750 shares

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