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Redmile Group, LLC: ATRA position timeline

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

Redmile Group, LLC held 441,701 ATRA 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 441,701 shares
    Change vs previous 13F 0 shares

    0.34% of the 13F portfolio, value $5,070,727.

    13F-HR 0001104659-26-097182 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F 0 shares

    0.14% of the 13F portfolio, value $2,089,246.

    13F-HR 0001104659-26-062579 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F 0 shares

    0.59% of the 13F portfolio, value $7,990,371.

    13F-HR 0001104659-26-016433 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F 0 shares

    0.62% of the 13F portfolio, value $6,329,575.

    13F-HR 0001104659-25-112572 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F 0 shares

    0.36% of the 13F portfolio, value $3,409,932.

    13F-HR 0001104659-25-078608 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $2,623,704.

    13F-HR 0001104659-25-049578 filed by Redmile Group, 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 441,701 shares
    Change vs previous 13F -10,569 shares

    0.41% of the 13F portfolio, value $5,879,040.

    13F-HR 0001104659-25-014154 filed by Redmile Group, 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 452,270 shares
    Change vs previous 13F not available

    0.22% of the 13F portfolio, value $3,676,955.

    13F-HR 0001104659-24-118934 filed by Redmile Group, LLC
    Filed (acceptance time not in the bulk data set), ingested

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