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Disclosery

Sunriver Management LLC: WCN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Sunriver Management LLC on WCN, newest first. How the timeline and the estimate are built.

Sunriver Management LLC held 343,513 WCN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 343,513 shares
    Change vs previous 13F +20,830 shares

    8.99% of the 13F portfolio, value $57,260,182.

    13F-HR 0001892688-26-000115 filed by Sunriver Management 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 322,683 shares
    Change vs previous 13F not available

    8.86% of the 13F portfolio, value $52,416,627.

    13F-HR 0001892688-26-000072 filed by Sunriver Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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