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Disclosery

Rock Springs Capital Management LP: DYN position timeline

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

Rock Springs Capital Management LP held 942,154 DYN 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 942,154 shares
    Change vs previous 13F -30,044 shares

    1.02% of the 13F portfolio, value $20,925,240.

    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 972,198 shares
    Change vs previous 13F +59,243 shares

    1.04% of the 13F portfolio, value $17,625,950.

    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 912,955 shares
    Change vs previous 13F +88,894 shares

    0.92% of the 13F portfolio, value $17,857,400.

    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 824,061 shares
    Change vs previous 13F +243,063 shares

    0.61% of the 13F portfolio, value $10,424,372.

    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 580,998 shares
    Change vs previous 13F +56,499 shares

    0.34% of the 13F portfolio, value $5,531,101.

    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 524,499 shares
    Change vs previous 13F +49,971 shares

    0.31% of the 13F portfolio, value $5,486,260.

    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 474,528 shares
    Change vs previous 13F +13,500 shares

    0.43% of the 13F portfolio, value $11,179,880.

    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 461,028 shares
    Change vs previous 13F not available

    0.54% of the 13F portfolio, value $16,560,126.

    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).