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Disclosery

EcoR1 Capital, LLC: ZBIO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of EcoR1 Capital, LLC on ZBIO, newest first. How the timeline and the estimate are built.

EcoR1 Capital, LLC held 789,500 ZBIO 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 789,500 shares
    Change vs previous 13F 0 shares

    0.99% of the 13F portfolio, value $20,037,510.

    13F-HR 0000935836-26-000415 filed by EcoR1 Capital, 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 789,500 shares
    Change vs previous 13F 0 shares

    0.66% of the 13F portfolio, value $15,434,725.

    13F-HR 0000935836-26-000270 filed by EcoR1 Capital, 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 789,500 shares
    Change vs previous 13F not available

    1.31% of the 13F portfolio, value $28,666,745.

    13F-HR 0000935836-26-000101 filed by EcoR1 Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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