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Disclosery

Stockbridge Partners LLC: MA position timeline

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

Stockbridge Partners LLC held 319,922 MA 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 319,922 shares
    Change vs previous 13F +113,948 shares

    3.46% of the 13F portfolio, value $164,311,939.

    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 205,974 shares
    Change vs previous 13F not available

    2.49% of the 13F portfolio, value $102,916,969.

    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).