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BLAIR WILLIAM & CO/IL: WCN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on WCN, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 35,134 WCN shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 35,134 shares
    Change vs previous 13F -5,501 shares

    0.02% of the 13F portfolio, value $5,856,410.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 40,635 shares
    Change vs previous 13F -37,546 shares

    0.02% of the 13F portfolio, value $6,600,713.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 78,181 shares
    Change vs previous 13F -7,286 shares

    0.04% of the 13F portfolio, value $13,709,807.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 85,467 shares
    Change vs previous 13F -1,781 shares

    0.04% of the 13F portfolio, value $15,025,130.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 87,248 shares
    Change vs previous 13F +6,449 shares

    0.05% of the 13F portfolio, value $16,290,867.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 80,799 shares
    Change vs previous 13F -948 shares

    0.05% of the 13F portfolio, value $15,771,253.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 81,747 shares
    Change vs previous 13F -1,625 shares

    0.04% of the 13F portfolio, value $14,026,226.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 83,372 shares
    Change vs previous 13F not available

    0.04% of the 13F portfolio, value $14,908,574.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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