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ValueAct Holdings, L.P.: MDB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ValueAct Holdings, L.P. on MDB, newest first. How the timeline and the estimate are built.

ValueAct Holdings, L.P. held 165,700 MDB 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 165,700 shares
    Change vs previous 13F -872,100 shares

    0.99% of the 13F portfolio, value $55,658,630.

    13F-HR 0001418814-26-000003 filed by ValueAct Holdings, L.P.
    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 1,037,800 shares
    Change vs previous 13F -369,000 shares

    4.45% of the 13F portfolio, value $254,022,306.

    13F-HR 0001418814-26-000002 filed by ValueAct Holdings, L.P.
    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 1,406,800 shares
    Change vs previous 13F -711,400 shares

    8.4% of the 13F portfolio, value $590,419,892.

    13F-HR 0001418814-26-000001 filed by ValueAct Holdings, L.P.
    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 2,118,200 shares
    Change vs previous 13F +1,427,700 shares

    6.19% of the 13F portfolio, value $367,192,777.

    13F-HR 0001418814-25-000003 filed by ValueAct Holdings, L.P.
    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 690,500 shares
    Change vs previous 13F not available

    2.59% of the 13F portfolio, value $144,998,095.

    13F-HR 0001418812-25-000025 filed by ValueAct Holdings, L.P.
    Filed (acceptance time not in the bulk data set), ingested

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