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Disclosery

Avidity Partners Management LP: TMO position timeline

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

Avidity Partners Management LP held 0 TMO 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 -6,700 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 6,700 shares
    Change vs previous 13F -12,200 shares

    1.12% of the 13F portfolio, value $3,882,315.

    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 18,900 shares
    Change vs previous 13F -10,700 shares

    2.09% of the 13F portfolio, value $9,166,878.

    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 29,600 shares
    Change vs previous 13F +14,100 shares

    2.41% of the 13F portfolio, value $12,001,616.

    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).

  5. period ended2025-03-31
    13F 15,500 shares
    Change vs previous 13F -29,100 shares

    1.59% of the 13F portfolio, value $7,712,800.

    13F-HR 0001791827-25-000005 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).

  6. period ended2024-12-31
    13F 44,600 shares
    Change vs previous 13F -24,000 shares

    2.31% of the 13F portfolio, value $23,202,258.

    13F-HR 0001791827-25-000002 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).

  7. period ended2024-09-30
    13F 68,600 shares
    Change vs previous 13F not available

    2.16% of the 13F portfolio, value $42,433,902.

    13F-HR 0001791827-24-000011 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).