Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Kenneth Griffin
Symbol
ATLX
Shares outstanding
26,404,763 shares
Disclosed Ownership
1,557,881 shares
Ownership
5.9%
Form type
SCHEDULE 13G
Filing time
15 Dec 2025, 17:03:41 UTC
Date of event
08 Dec 2025

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 5.8% 1,529,627 0 1,529,627 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 5.8% 1,529,627 0 1,529,627 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 5.8% 1,529,627 0 1,529,627 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0.1% 28,254 0 28,254 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities Group LP 0.1% 28,254 0 28,254 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities GP LLC 0.1% 28,254 0 28,254 /s/ Seth Levy Seth Levy, Authorized Signatory
Kenneth Griffin 5.9% 1,557,881 0 1,557,881 /s/ Seth Levy Seth Levy, attorney-in-fact*