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Disclosery

Avidity Partners Management LP: ARVN position timeline

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

Avidity Partners Management LP held 0 ARVN shares at 2025-12-31 per its 13F-HR filed 2026-02-13.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -698,363 shares

    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).

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

  2. period ended2025-09-30
    13F 698,363 shares
    Change vs previous 13F +455,201 shares

    1.35% of the 13F portfolio, value $5,950,053.

    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).

  3. period ended2025-06-30
    13F 243,162 shares
    Change vs previous 13F -170,000 shares

    0.36% of the 13F portfolio, value $1,789,672.

    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).

  4. period ended2025-03-31
    13F 413,162 shares
    Change vs previous 13F -944,838 shares

    0.6% of the 13F portfolio, value $2,900,397.

    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).

  5. period ended2024-12-31
    13F 1,358,000 shares
    Change vs previous 13F -139,000 shares

    2.6% of the 13F portfolio, value $26,032,860.

    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).

  6. period ended2024-09-30
    13F 1,497,000 shares
    Change vs previous 13F not available

    1.88% of the 13F portfolio, value $36,871,110.

    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).