Skip to content
Disclosery

Palo Alto Investors LP: PRTA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Palo Alto Investors LP on PRTA, newest first. How the timeline and the estimate are built.

Palo Alto Investors LP held 1,143,155 PRTA shares at 2026-06-30 per its 13F-HR/A filed 2026-08-19.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 1,143,155 shares
    Change vs previous 13F -65,413 shares

    1.55% of the 13F portfolio, value $11,191,487.

    13F-HR/A 0002073679-26-000102 filed by Palo Alto Investors 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 1,208,568 shares
    Change vs previous 13F -111,942 shares

    1.8% of the 13F portfolio, value $11,747,281.

    13F-HR 0001306923-26-000004 filed by Palo Alto Investors 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 1,320,510 shares
    Change vs previous 13F -3,518 shares

    1.76% of the 13F portfolio, value $12,610,871.

    13F-HR 0001306923-26-000002 filed by Palo Alto Investors 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 1,324,028 shares
    Change vs previous 13F +49,275 shares

    2.39% of the 13F portfolio, value $12,922,513.

    13F-HR 0001306923-25-000019 filed by Palo Alto Investors 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 1,274,753 shares
    Change vs previous 13F -384,981 shares

    1.65% of the 13F portfolio, value $7,737,751.

    13F-HR 0001306923-25-000016 filed by Palo Alto Investors 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 1,659,734 shares
    Change vs previous 13F -78,230 shares

    3.91% of the 13F portfolio, value $20,539,208.

    13F-HR 0001306923-25-000014 filed by Palo Alto Investors 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 1,737,964 shares
    Change vs previous 13F 0 shares

    3.73% of the 13F portfolio, value $24,070,801.

    13F-HR 0001306923-25-000010 filed by Palo Alto Investors 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 1,737,964 shares
    Change vs previous 13F not available

    3.78% of the 13F portfolio, value $29,076,138.

    13F-HR 0001306923-24-000012 filed by Palo Alto Investors LP
    Filed (acceptance time not in the bulk data set), ingested

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