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Disclosery

Rock Springs Capital Management LP: AGIO position timeline

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

Rock Springs Capital Management LP held 532,563 AGIO 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 532,563 shares
    Change vs previous 13F -266,600 shares

    0.96% of the 13F portfolio, value $19,763,413.

    13F-HR 0001172661-26-003527 filed by Rock Springs Capital 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 799,163 shares
    Change vs previous 13F 0 shares

    1.59% of the 13F portfolio, value $27,035,684.

    13F-HR 0001172661-26-002225 filed by Rock Springs Capital 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 799,163 shares
    Change vs previous 13F -159,379 shares

    1.12% of the 13F portfolio, value $21,753,217.

    13F-HR 0001172661-26-000917 filed by Rock Springs Capital 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 958,542 shares
    Change vs previous 13F -31,203 shares

    2.25% of the 13F portfolio, value $38,475,876.

    13F-HR 0001172661-25-004882 filed by Rock Springs Capital 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 989,745 shares
    Change vs previous 13F +647,565 shares

    2.05% of the 13F portfolio, value $32,918,919.

    13F-HR 0001172661-25-003273 filed by Rock Springs Capital 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 342,180 shares
    Change vs previous 13F -128,906 shares

    0.57% of the 13F portfolio, value $10,025,874.

    13F-HR 0001172661-25-001953 filed by Rock Springs Capital 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 471,086 shares
    Change vs previous 13F -228,303 shares

    0.59% of the 13F portfolio, value $15,479,886.

    13F-HR 0001172661-25-000867 filed by Rock Springs Capital 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 699,389 shares
    Change vs previous 13F not available

    1.01% of the 13F portfolio, value $31,073,853.

    13F-HR 0001172661-24-004721 filed by Rock Springs Capital Management LP
    Filed (acceptance time not in the bulk data set), ingested

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