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Disclosery

Stockbridge Partners LLC: WCN position timeline

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

Stockbridge Partners LLC held 1,161,217 WCN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,161,217 shares
    Change vs previous 13F -1,289,952 shares

    4.07% of the 13F portfolio, value $193,563,262.

    13F-HR 0000919574-26-005193 filed by Stockbridge Partners 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 2,451,169 shares
    Change vs previous 13F +83,856 shares

    9.62% of the 13F portfolio, value $398,167,892.

    13F-HR 0000919574-26-003151 filed by Stockbridge Partners 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 2,367,313 shares
    Change vs previous 13F +132,786 shares

    9.14% of the 13F portfolio, value $415,132,008.

    13F-HR 0000919574-26-001019 filed by Stockbridge Partners 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 2,234,527 shares
    Change vs previous 13F +96,753 shares

    7.6% of the 13F portfolio, value $392,829,847.

    13F-HR 0000919574-25-006813 filed by Stockbridge Partners 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 2,137,774 shares
    Change vs previous 13F +14,465 shares

    7.8% of the 13F portfolio, value $399,165,161.

    13F-HR 0000919574-25-004697 filed by Stockbridge Partners 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 2,123,309 shares
    Change vs previous 13F +154,845 shares

    9.17% of the 13F portfolio, value $414,448,684.

    13F-HR 0000919574-25-003099 filed by Stockbridge Partners 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 1,968,464 shares
    Change vs previous 13F +127,454 shares

    7.17% of the 13F portfolio, value $337,749,053.

    13F-HR 0000919574-25-001274 filed by Stockbridge Partners 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 1,841,010 shares
    Change vs previous 13F not available

    6.61% of the 13F portfolio, value $329,209,408.

    13F-HR 0000919574-24-006485 filed by Stockbridge Partners LLC
    Filed (acceptance time not in the bulk data set), ingested

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