Filing Manager
Helix Holdings II LLC
Reporting Manager
Bihua Chen
Symbol
BBOT
Shares outstanding
79.1M shares
Disclosed Ownership
17.9M shares
Ownership
22.6%
Form type
SCHEDULE 13D/A
Date filed
8/13/2025, 08:29 AM
Date of event
Aug 11, 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Helix Holdings II LLC 5.7% 4.53M 4.53M 0 /s/ Bihua Chen Bihua Chen, Managing Member 0001869101
Cormorant Global Healthcare Master Fund, LP 7.5% 5.95M 5.95M 0 /s/ Bihua Chen Bihua Chen, Managing Member of Cormorant Global Healthcare GP, LLC 0001618442
Cormorant Global Healthcare GP, LLC 7.5% 5.95M 5.95M 0 /s/ Bihua Chen Bihua Chen, Managing Member 0001618451
Bihua Chen 22.6% 17.9M 17.9M 0 /s/ Bihua Chen Bihua Chen, Self 0001599214