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GAMCO Investors (Gabelli): MWA position timeline

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

GAMCO Investors (Gabelli) held 3,233,623 MWA 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 3,233,623 shares
    Change vs previous 13F +9,863 shares

    0.31% of the 13F portfolio, value $83,524,482.

    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: 2,538,072 shares
    • GABELLI FUNDS LLC: 695,551 shares

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

  2. period ended2026-03-31
    13F 3,223,760 shares
    Change vs previous 13F -16,209 shares

    0.36% of the 13F portfolio, value $88,621,163.

    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: 2,549,467 shares
    • GABELLI FUNDS LLC: 674,293 shares

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

  3. period ended2025-12-31
    13F 3,239,969 shares
    Change vs previous 13F -31,057 shares

    0.31% of the 13F portfolio, value $77,176,061.

    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: 2,566,076 shares
    • GABELLI FUNDS LLC: 673,893 shares

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

  4. period ended2025-09-30
    13F 3,271,026 shares
    Change vs previous 13F -90,464 shares

    0.33% of the 13F portfolio, value $83,476,583.

    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: 2,612,033 shares
    • GABELLI FUNDS LLC: 658,993 shares

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

  5. period ended2025-06-30
    13F 3,361,490 shares
    Change vs previous 13F -124,211 shares

    0.33% of the 13F portfolio, value $80,810,219.

    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: 2,699,457 shares
    • GABELLI FUNDS LLC: 662,033 shares

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

  6. period ended2025-03-31
    13F 3,485,701 shares
    Change vs previous 13F -164,120 shares

    0.4% of the 13F portfolio, value $88,606,520.

    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: 2,801,104 shares
    • GABELLI FUNDS LLC: 684,597 shares

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

  7. period ended2024-12-31
    13F 3,649,821 shares
    Change vs previous 13F -98,327 shares

    0.36% of the 13F portfolio, value $82,120,973.

    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: 2,911,556 shares
    • GABELLI FUNDS LLC: 738,265 shares

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

  8. period ended2024-09-30
    13F 3,748,148 shares
    Change vs previous 13F not available

    0.34% of the 13F portfolio, value $81,334,812.

    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: 2,995,083 shares
    • GABELLI FUNDS LLC: 753,065 shares

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