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ALTAROCK PARTNERS LP: MSFT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ALTAROCK PARTNERS LP on MSFT, newest first. How the timeline and the estimate are built.

ALTAROCK PARTNERS LP held 2,334,482 MSFT shares at 2026-06-30 per its 13F-HR filed 2026-08-17.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,334,482 shares
    Change vs previous 13F +466,945 shares

    20.54% of the 13F portfolio, value $870,808,476.

    13F-HR 0001104659-26-097527 filed by ALTAROCK PARTNERS LP
    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 1,867,537 shares
    Change vs previous 13F -214,820 shares

    16.75% of the 13F portfolio, value $691,306,171.

    13F-HR 0001104659-26-062170 filed by ALTAROCK PARTNERS LP
    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 2,082,357 shares
    Change vs previous 13F -486,910 shares

    19.75% of the 13F portfolio, value $1,007,069,492.

    13F-HR 0001104659-26-015359 filed by ALTAROCK PARTNERS LP
    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 2,569,267 shares
    Change vs previous 13F -9,382 shares

    24.33% of the 13F portfolio, value $1,330,751,843.

    13F-HR 0001104659-25-112002 filed by ALTAROCK PARTNERS LP
    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 2,578,649 shares
    Change vs previous 13F 0 shares

    23.42% of the 13F portfolio, value $1,282,645,799.

    13F-HR 0001104659-25-078208 filed by ALTAROCK PARTNERS LP
    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 2,578,649 shares
    Change vs previous 13F +687,008 shares

    19.46% of the 13F portfolio, value $967,999,048.

    13F-HR 0001104659-25-048610 filed by ALTAROCK PARTNERS LP
    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 1,891,641 shares
    Change vs previous 13F -43,175 shares

    16.13% of the 13F portfolio, value $797,326,682.

    13F-HR 0001104659-25-014306 filed by ALTAROCK PARTNERS LP
    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 1,934,816 shares
    Change vs previous 13F not available

    16.4% of the 13F portfolio, value $832,551,325.

    13F-HR 0001104659-24-117526 filed by ALTAROCK PARTNERS LP
    Filed (acceptance time not in the bulk data set), ingested

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