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Disclosery

GAMCO Investors (Gabelli): ABM position timeline

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

GAMCO Investors (Gabelli) held 193,198 ABM 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 193,198 shares
    Change vs previous 13F +34,998 shares

    0.03% of the 13F portfolio, value $8,547,080.

    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: 19,612 shares
    • GABELLI FUNDS LLC: 173,586 shares

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

  2. period ended2026-03-31
    13F 158,200 shares
    Change vs previous 13F +16,156 shares

    0.02% of the 13F portfolio, value $6,093,864.

    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: 15,998 shares
    • GABELLI FUNDS LLC: 142,202 shares

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

  3. period ended2025-12-31
    13F 142,044 shares
    Change vs previous 13F +1,757 shares

    0.02% of the 13F portfolio, value $6,008,461.

    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: 13,991 shares
    • GABELLI FUNDS LLC: 128,053 shares

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

  4. period ended2025-09-30
    13F 140,287 shares
    Change vs previous 13F -189 shares

    0.03% of the 13F portfolio, value $6,470,037.

    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: 14,364 shares
    • GABELLI FUNDS LLC: 125,923 shares

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

  5. period ended2025-06-30
    13F 140,476 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $6,631,872.

    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: 14,553 shares
    • GABELLI FUNDS LLC: 125,923 shares

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