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DUDLEY & SHANLEY, INC.: WSO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DUDLEY & SHANLEY, INC. on WSO, newest first. How the timeline and the estimate are built.

DUDLEY & SHANLEY, INC. held 51,565 WSO shares at 2026-09-30 per its 13F-HR filed 2026-10-06.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 51,565 shares
    Change vs previous 13F -26,447 shares

    2.48% of the 13F portfolio, value $15,608,210.

    13F-HR 0000883511-26-000006 filed by DUDLEY & SHANLEY, INC.
    Accepted , ingested

  2. period ended2026-06-30
    13F 78,012 shares
    Change vs previous 13F +22,320 shares

    4.91% of the 13F portfolio, value $32,509,941.

    13F-HR 0000883511-26-000003 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 55,692 shares
    Change vs previous 13F 0 shares

    3.31% of the 13F portfolio, value $20,260,193.

    13F-HR 0000883511-26-000002 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 55,692 shares
    Change vs previous 13F +16,322 shares

    3.02% of the 13F portfolio, value $18,765,419.

    13F-HR 0000883511-26-000001 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 39,370 shares
    Change vs previous 13F -463 shares

    2.56% of the 13F portfolio, value $15,917,291.

    13F-HR 0000883511-25-000008 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 39,833 shares
    Change vs previous 13F +14,405 shares

    2.76% of the 13F portfolio, value $17,591,049.

    13F-HR 0000883511-25-000006 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 25,428 shares
    Change vs previous 13F +25 shares

    2.04% of the 13F portfolio, value $12,925,052.

    13F-HR 0000883511-25-000005 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 25,403 shares
    Change vs previous 13F not available

    1.86% of the 13F portfolio, value $12,038,228.

    13F-HR 0000883511-25-000001 filed by DUDLEY & SHANLEY, INC.
    Filed (acceptance time not in the bulk data set), ingested

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