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Avidity Partners Management LP: CATX position timeline

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

Avidity Partners Management LP held 6,299,999 CATX 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 6,299,999 shares
    Change vs previous 13F +250,000 shares

    3.44% of the 13F portfolio, value $21,482,997.

    13F-HR 0001791827-26-000005 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).

  2. period ended2026-03-31
    13F/A 6,049,999 shares
    Change vs previous 13F +2,839,266 shares

    5.11% of the 13F portfolio, value $25,228,496.

    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).

  3. period ended2025-12-31
    13F 3,210,733 shares
    Change vs previous 13F +216,700 shares

    2.55% of the 13F portfolio, value $8,829,516.

    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).

  4. period ended2025-09-30
    13F 2,994,033 shares
    Change vs previous 13F +1,135,437 shares

    2.34% of the 13F portfolio, value $10,269,533.

    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).

  5. period ended2025-06-30
    13F 1,858,596 shares
    Change vs previous 13F -338,674 shares

    1.28% of the 13F portfolio, value $6,393,570.

    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).

  6. period ended2025-03-31
    13F 2,197,270 shares
    Change vs previous 13F -497,330 shares

    0.97% of the 13F portfolio, value $4,680,185.

    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).

  7. period ended2024-12-31
    13F 2,694,600 shares
    Change vs previous 13F -749,402 shares

    0.86% of the 13F portfolio, value $8,595,774.

    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).

  8. period ended2024-09-30
    13F 3,444,002 shares
    Change vs previous 13F not available

    2.35% of the 13F portfolio, value $45,977,427.

    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).