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HighVista Strategies LLC: PTGX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of HighVista Strategies LLC on PTGX, newest first. How the timeline and the estimate are built.

HighVista Strategies LLC held 24,460 PTGX 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 24,460 shares
    Change vs previous 13F -9,392 shares

    0.68% of the 13F portfolio, value $2,998,307.

    13F-HR 0001172661-26-003470 filed by HighVista Strategies LLC
    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 33,852 shares
    Change vs previous 13F -39,693 shares

    0.99% of the 13F portfolio, value $3,568,001.

    13F-HR 0001172661-26-002079 filed by HighVista Strategies LLC
    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 73,545 shares
    Change vs previous 13F -48,137 shares

    1.65% of the 13F portfolio, value $6,423,420.

    13F-HR 0001172661-26-000882 filed by HighVista Strategies LLC
    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 121,682 shares
    Change vs previous 13F +63,831 shares

    1.98% of the 13F portfolio, value $8,083,335.

    13F-HR 0001172661-25-004799 filed by HighVista Strategies LLC
    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 57,851 shares
    Change vs previous 13F -20,601 shares

    1.17% of the 13F portfolio, value $3,197,425.

    13F-HR 0001172661-25-003309 filed by HighVista Strategies LLC
    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 78,452 shares
    Change vs previous 13F +15,934 shares

    1.46% of the 13F portfolio, value $3,793,939.

    13F-HR 0001172661-25-001991 filed by HighVista Strategies LLC
    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 62,518 shares
    Change vs previous 13F -26,990 shares

    0.9% of the 13F portfolio, value $2,413,195.

    13F-HR 0001172661-25-000973 filed by HighVista Strategies LLC
    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 89,508 shares
    Change vs previous 13F not available

    1.39% of the 13F portfolio, value $4,027,860.

    13F-HR 0001172661-24-004811 filed by HighVista Strategies LLC
    Filed (acceptance time not in the bulk data set), ingested

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