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Disclosery

Avidity Partners Management LP: MCK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Avidity Partners Management LP on MCK, newest first. How the timeline and the estimate are built.

Avidity Partners Management LP held 0 MCK shares at 2026-03-31 per its 13F-HR/A filed 2026-05-28.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F/A 0 shares
    Change vs previous 13F -9,520 shares

    13F-HR/A 0001791827-26-000004 filed by Avidity Partners Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-12-31
    13F 9,520 shares
    Change vs previous 13F +3,720 shares

    2.25% of the 13F portfolio, value $7,809,161.

    13F-HR 0001791827-26-000002 filed by Avidity Partners Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 5,800 shares
    Change vs previous 13F -7,700 shares

    1.02% of the 13F portfolio, value $4,480,732.

    13F-HR 0001791827-25-000008 filed by Avidity Partners Management LP
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-06-30
    13F 13,500 shares
    Change vs previous 13F not available

    1.98% of the 13F portfolio, value $9,892,530.

    13F-HR 0001791827-25-000007 filed by Avidity Partners Management LP
    Filed (acceptance time not in the bulk data set), ingested

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