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GAMCO Investors (Gabelli): HWM position timeline

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

GAMCO Investors (Gabelli) held 204,845 HWM 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 204,845 shares
    Change vs previous 13F -7,751 shares

    0.21% of the 13F portfolio, value $55,074,627.

    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: 67,013 shares
    • GABELLI FUNDS LLC: 137,832 shares

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

  2. period ended2026-03-31
    13F 212,596 shares
    Change vs previous 13F +2,553 shares

    0.2% of the 13F portfolio, value $48,994,874.

    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: 75,805 shares
    • GABELLI FUNDS LLC: 136,791 shares

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

  3. period ended2025-12-31
    13F 210,043 shares
    Change vs previous 13F +42,764 shares

    0.17% of the 13F portfolio, value $43,063,016.

    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: 75,742 shares
    • GABELLI FUNDS LLC: 134,301 shares

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

  4. period ended2025-09-30
    13F 167,279 shares
    Change vs previous 13F -2,539 shares

    0.13% of the 13F portfolio, value $32,825,158.

    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: 55,043 shares
    • GABELLI FUNDS LLC: 112,236 shares

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

  5. period ended2025-06-30
    13F 169,818 shares
    Change vs previous 13F +26,422 shares

    0.13% of the 13F portfolio, value $31,608,225.

    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: 57,582 shares
    • GABELLI FUNDS LLC: 112,236 shares

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

  6. period ended2025-03-31
    13F 143,396 shares
    Change vs previous 13F -9,164 shares

    0.08% of the 13F portfolio, value $18,602,763.

    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: 59,880 shares
    • GABELLI FUNDS LLC: 83,516 shares

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

  7. period ended2024-12-31
    13F 152,560 shares
    Change vs previous 13F -9,242 shares

    0.07% of the 13F portfolio, value $16,685,487.

    13F-HR 0001140361-25-004328 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 67,344 shares
    • GABELLI FUNDS LLC: 85,216 shares

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

  8. period ended2024-09-30
    13F 161,802 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $16,220,651.

    13F-HR 0001140361-24-046503 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

    • GAMCO INVESTORS, INC. ET AL: 70,286 shares
    • GABELLI FUNDS LLC: 91,516 shares

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