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DUDLEY & SHANLEY, INC.: ALSN position timeline

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

DUDLEY & SHANLEY, INC. held 175,274 ALSN 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 175,274 shares
    Change vs previous 13F +10,237 shares

    3.16% of the 13F portfolio, value $19,851,533.

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

  2. period ended2026-06-30
    13F 165,037 shares
    Change vs previous 13F +440 shares

    2.81% of the 13F portfolio, value $18,606,271.

    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 164,597 shares
    Change vs previous 13F 0 shares

    3.15% of the 13F portfolio, value $19,267,725.

    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 164,597 shares
    Change vs previous 13F +50 shares

    2.59% of the 13F portfolio, value $16,114,046.

    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 164,547 shares
    Change vs previous 13F 0 shares

    2.25% of the 13F portfolio, value $13,966,749.

    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 164,547 shares
    Change vs previous 13F +300 shares

    2.45% of the 13F portfolio, value $15,630,320.

    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 164,247 shares
    Change vs previous 13F +150 shares

    2.47% of the 13F portfolio, value $15,713,510.

    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 164,097 shares
    Change vs previous 13F not available

    2.74% of the 13F portfolio, value $17,732,322.

    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).