Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Citadel Advisors LLC
Symbol
SPRB
Shares outstanding
1,097,588 shares
Disclosed Ownership
109,649 shares
Ownership
10%
Form type
SCHEDULE 13G
Filing time
16 Oct 2025, 17:10:09 UTC
Date of event
09 Oct 2025

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 10% 109,649 0 109,649 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 10% 109,649 0 109,649 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 10% 109,649 0 109,649 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0% 0 0 0 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities Group LP 0% 0 0 0 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities GP LLC 0% 0 0 0 /s/ Seth Levy Seth Levy, Authorized Signatory
Kenneth Griffin 10% 109,649 0 109,649 /s/ Seth Levy Seth Levy, attorney-in-fact*