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GAMCO Investors (Gabelli): MCS position timeline

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

GAMCO Investors (Gabelli) held 1,064,505 MCS 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 1,064,505 shares
    Change vs previous 13F -58,000 shares

    0.09% of the 13F portfolio, value $24,973,287.

    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: 875,505 shares
    • GABELLI FUNDS LLC: 189,000 shares

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

  2. period ended2026-03-31
    13F 1,122,505 shares
    Change vs previous 13F -3,330 shares

    0.08% of the 13F portfolio, value $19,273,411.

    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: 912,505 shares
    • GABELLI FUNDS LLC: 210,000 shares

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

  3. period ended2025-12-31
    13F 1,125,835 shares
    Change vs previous 13F +120,480 shares

    0.07% of the 13F portfolio, value $17,461,701.

    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: 915,835 shares
    • GABELLI FUNDS LLC: 210,000 shares

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

  4. period ended2025-09-30
    13F 1,005,355 shares
    Change vs previous 13F -3,294 shares

    0.06% of the 13F portfolio, value $15,593,056.

    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: 815,355 shares
    • GABELLI FUNDS LLC: 190,000 shares

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

  5. period ended2025-06-30
    13F 1,008,649 shares
    Change vs previous 13F +1,525 shares

    0.07% of the 13F portfolio, value $17,005,822.

    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: 820,349 shares
    • GABELLI FUNDS LLC: 188,300 shares

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

  6. period ended2025-03-31
    13F 1,007,124 shares
    Change vs previous 13F -4,665 shares

    0.08% of the 13F portfolio, value $16,808,900.

    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: 815,424 shares
    • GABELLI FUNDS LLC: 191,700 shares

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

  7. period ended2024-12-31
    13F 1,011,789 shares
    Change vs previous 13F -12,700 shares

    0.1% of the 13F portfolio, value $21,753,464.

    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: 817,089 shares
    • GABELLI FUNDS LLC: 194,700 shares

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

  8. period ended2024-09-30
    13F 1,024,489 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $15,439,049.

    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: 822,989 shares
    • GABELLI FUNDS LLC: 201,500 shares

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