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Disclosery

Rock Springs Capital Management LP: BBIO position timeline

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

Rock Springs Capital Management LP held 144,750 BBIO 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 144,750 shares
    Change vs previous 13F +16,500 shares

    0.53% of the 13F portfolio, value $10,780,980.

    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 128,250 shares
    Change vs previous 13F +24,750 shares

    0.56% of the 13F portfolio, value $9,523,845.

    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 103,500 shares
    Change vs previous 13F +18,500 shares

    0.41% of the 13F portfolio, value $7,916,715.

    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 85,000 shares
    Change vs previous 13F not available

    0.26% of the 13F portfolio, value $4,414,900.

    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).