CITADEL ADVISORS LLC - Dec 31, 2024 Form SCHEDULE 13G/A Schedule Report for ACELYRIN, Inc. (SLRN)

Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Kenneth Griffin
Security
ACELYRIN, Inc. Common Stock, par value $0.00001 per share (the "Shares")
Symbol
SLRN
Shares outstanding
100M shares
Disclosed Ownership
4.22M shares
Ownership
4.2%
Form type
SCHEDULE 13G/A
Date filed
2/14/2025, 06:13 PM
Date of event
Dec 31, 2024
SEC
View on sec.gov

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 4.2% 4.19M 0 4.19M /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 4.2% 4.19M 0 4.19M /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 4.2% 4.19M 0 4.19M /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0% 6.83K 0 6.83K /s/ Guy Miller Guy Miller, Authorized Signatory
Citadel Securities Group LP 0% 26.4K 0 26.4K /s/ Guy Miller Guy Miller, Authorized Signatory
Citadel Securities GP LLC 0% 26.4K 0 26.4K /s/ Guy Miller Guy Miller, Authorized Signatory
Kenneth Griffin 4.2% 4.22M 0 4.22M /s/ Seth Levy Seth Levy, attorney-in-fact*