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GAMCO Investors (Gabelli): ACCO position timeline

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

GAMCO Investors (Gabelli) held 100,047 ACCO 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 100,047 shares
    Change vs previous 13F -63,000 shares

    <0.01% of the 13F portfolio, value $416,196.

    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: 100,047 shares
    • GABELLI FUNDS LLC: 0 shares

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

  2. period ended2026-03-31
    13F 163,047 shares
    Change vs previous 13F -207,794 shares

    <0.01% of the 13F portfolio, value $489,141.

    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: 150,047 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  3. period ended2025-12-31
    13F 370,841 shares
    Change vs previous 13F -34,704 shares

    0.01% of the 13F portfolio, value $1,383,237.

    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: 357,841 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  4. period ended2025-09-30
    13F 405,545 shares
    Change vs previous 13F -39,828 shares

    0.01% of the 13F portfolio, value $1,618,125.

    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: 392,545 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  5. period ended2025-06-30
    13F 445,373 shares
    Change vs previous 13F +282,326 shares

    0.01% of the 13F portfolio, value $1,594,435.

    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: 432,373 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  6. period ended2025-03-31
    13F 163,047 shares
    Change vs previous 13F -500 shares

    <0.01% of the 13F portfolio, value $683,167.

    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: 150,047 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  7. period ended2024-12-31
    13F 163,547 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $858,622.

    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: 150,547 shares
    • GABELLI FUNDS LLC: 13,000 shares

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

  8. period ended2024-09-30
    13F 163,547 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $894,602.

    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: 150,547 shares
    • GABELLI FUNDS LLC: 13,000 shares

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