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GAMCO Investors (Gabelli): MMM position timeline

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

GAMCO Investors (Gabelli) held 24,789 MMM 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 24,789 shares
    Change vs previous 13F -23 shares

    0.01% of the 13F portfolio, value $4,013,587.

    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: 10,789 shares
    • GABELLI FUNDS LLC: 14,000 shares

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

  2. period ended2026-03-31
    13F 24,812 shares
    Change vs previous 13F -741 shares

    0.01% of the 13F portfolio, value $3,603,447.

    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: 10,762 shares
    • GABELLI FUNDS LLC: 14,050 shares

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

  3. period ended2025-12-31
    13F 25,553 shares
    Change vs previous 13F -700 shares

    0.02% of the 13F portfolio, value $4,091,035.

    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: 11,153 shares
    • GABELLI FUNDS LLC: 14,400 shares

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

  4. period ended2025-09-30
    13F 26,253 shares
    Change vs previous 13F +84 shares

    0.02% of the 13F portfolio, value $4,073,941.

    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: 11,493 shares
    • GABELLI FUNDS LLC: 14,760 shares

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

  5. period ended2025-06-30
    13F 26,169 shares
    Change vs previous 13F +819 shares

    0.02% of the 13F portfolio, value $3,983,968.

    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: 11,459 shares
    • GABELLI FUNDS LLC: 14,710 shares

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

  6. period ended2025-03-31
    13F 25,350 shares
    Change vs previous 13F +10,158 shares

    0.02% of the 13F portfolio, value $3,722,901.

    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: 11,500 shares
    • GABELLI FUNDS LLC: 13,850 shares

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

  7. period ended2024-12-31
    13F 15,192 shares
    Change vs previous 13F +857 shares

    0.01% of the 13F portfolio, value $1,961,135.

    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: 12,192 shares
    • GABELLI FUNDS LLC: 3,000 shares

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

  8. period ended2024-09-30
    13F 14,335 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $1,959,595.

    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: 11,535 shares
    • GABELLI FUNDS LLC: 2,800 shares

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