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Disclosery

GAMCO Investors (Gabelli): DWSN position timeline

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

GAMCO Investors (Gabelli) held 145,200 DWSN 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 145,200 shares
    Change vs previous 13F 0 shares

    0.01% of the 13F portfolio, value $862,488.

    13F-HR 0001140361-26-032509 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 145,200 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $502,392.

    13F-HR 0001140361-26-021337 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 145,200 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $226,512.

    13F-HR 0001140361-26-003893 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-09-30
    13F 145,200 shares
    Change vs previous 13F -4,000 shares

    <0.01% of the 13F portfolio, value $255,552.

    13F-HR 0001140361-25-041671 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-06-30
    13F 149,200 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $217,832.

    13F-HR 0001140361-25-030816 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-03-31
    13F 149,200 shares
    Change vs previous 13F 0 shares

    <0.01% of the 13F portfolio, value $183,516.

    13F-HR 0001140361-25-018974 filed by GABELLI FUNDS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-12-31
    13F 149,200 shares
    Change vs previous 13F -5,000 shares

    <0.01% of the 13F portfolio, value $199,928.

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

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

  8. period ended2024-09-30
    13F 154,200 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $243,636.

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

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