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GAMCO Investors (Gabelli): AMRZ position timeline

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

GAMCO Investors (Gabelli) held 133,810 AMRZ 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 133,810 shares
    Change vs previous 13F +4,304 shares

    0.03% of the 13F portfolio, value $7,132,073.

    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: 81,769 shares
    • GABELLI FUNDS LLC: 52,041 shares

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

  2. period ended2026-03-31
    13F 129,506 shares
    Change vs previous 13F +2,175 shares

    0.03% of the 13F portfolio, value $7,254,926.

    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: 79,347 shares
    • GABELLI FUNDS LLC: 50,159 shares

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

  3. period ended2025-12-31
    13F 127,331 shares
    Change vs previous 13F +6,910 shares

    0.03% of the 13F portfolio, value $6,886,060.

    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: 80,017 shares
    • GABELLI FUNDS LLC: 47,314 shares

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

  4. period ended2025-09-30
    13F 120,421 shares
    Change vs previous 13F +58,189 shares

    0.02% of the 13F portfolio, value $5,844,031.

    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: 83,999 shares
    • GABELLI FUNDS LLC: 36,422 shares

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

  5. period ended2025-06-30
    13F 62,232 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $3,083,595.

    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: 40,384 shares
    • GABELLI FUNDS LLC: 21,848 shares

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