CITADEL ADVISORS LLC - 12 Aug 2025 SCHEDULE 13G Report for ALT5 Sigma Corporation Common Stock, par value $0.001 per share (the "Shares") (ALTS)

Filing Manager
CITADEL ADVISORS LLC
Reporting Manager
Kenneth Griffin
Security
ALT5 Sigma Corporation Common Stock, par value $0.001 per share (the "Shares")
Symbol
ALTS
Disclosed Ownership
282,607 shares
Ownership
0.2%
Form type
SCHEDULE 13G
Filing time
19 Aug 2025, 17:59:33 UTC
Date of event
12 Aug 2025
SEC
View on sec.gov

Quoteable Key Fact

"CITADEL ADVISORS LLC disclosed 0.2% ownership in ALT5 Sigma Corporation Common Stock, par value $0.001 per share (the "Shares") (ALTS) on 12 Aug 2025."

Quick Takeaways

  • CITADEL ADVISORS LLC filed SCHEDULE 13G for ALT5 Sigma Corporation Common Stock, par value $0.001 per share (the "Shares") (ALTS).
  • Disclosed ownership: 0.2%.
  • Date of event: 12 Aug 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 19 Aug 2025, 17:59.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Citadel Advisors LLC 0.1% 73,677 0 73,677 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Advisors Holdings LP 0.1% 73,677 0 73,677 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel GP LLC 0.1% 73,677 0 73,677 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities LLC 0.2% 208,930 0 208,930 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities Group LP 0.2% 208,930 0 208,930 /s/ Seth Levy Seth Levy, Authorized Signatory
Citadel Securities GP LLC 0.2% 208,930 0 208,930 /s/ Seth Levy Seth Levy, Authorized Signatory
Kenneth Griffin 0.2% 282,607 0 282,607 /s/ Seth Levy Seth Levy, attorney-in-fact*