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CASTLEARK MANAGEMENT LLC: BBIO position timeline

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

CASTLEARK MANAGEMENT LLC held 78,497 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 78,497 shares
    Change vs previous 13F -3,240 shares

    0.16% of the 13F portfolio, value $5,846,457.

    13F-HR 0001106832-26-000004 filed by CASTLEARK MANAGEMENT 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 81,737 shares
    Change vs previous 13F -32,280 shares

    0.2% of the 13F portfolio, value $6,069,790.

    13F-HR 0001106832-26-000003 filed by CASTLEARK MANAGEMENT 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 114,017 shares
    Change vs previous 13F -9,690 shares

    0.26% of the 13F portfolio, value $8,721,160.

    13F-HR 0001106832-26-000001 filed by CASTLEARK MANAGEMENT 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 123,707 shares
    Change vs previous 13F +45,867 shares

    0.18% of the 13F portfolio, value $6,425,342.

    13F-HR 0001106832-25-000008 filed by CASTLEARK MANAGEMENT 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 77,840 shares
    Change vs previous 13F -29,140 shares

    0.1% of the 13F portfolio, value $3,361,131.

    13F-HR 0001106832-25-000006 filed by CASTLEARK MANAGEMENT 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 106,980 shares
    Change vs previous 13F not available

    0.13% of the 13F portfolio, value $3,698,299.

    13F-HR 0001106832-25-000004 filed by CASTLEARK MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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