Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Kenneth Griffin
Symbol
BCTX
Shares outstanding
7,179,159 shares
Disclosed Ownership
717,198 shares
Ownership
10%
Form type
SCHEDULE 13G
Filing time
23 Jan 2026, 18:59:18 UTC
Date of event
15 Jan 2026

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 10% 716,699 0 716,699 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 10% 716,699 0 716,699 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 10% 716,699 0 716,699 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0% 499 0 499 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities Group LP 0% 499 0 499 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities GP LLC 0% 499 0 499 /s/ Seth Levy Seth Levy, Authorized Signatory
Kenneth Griffin 10% 717,198 0 717,198 /s/ Seth Levy Seth Levy, attorney-in-fact*