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
Next filing
17 Feb 2026

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*