Quick Takeaways
- CITADEL ADVISORS LLC filed SCHEDULE 13G/A for ACELYRIN, Inc. Common Stock, par value $0.00001 per share (the "Shares").
- Disclosed ownership: 4.2%.
- Date of event: 31 Dec 2024.
CITADEL ADVISORS LLC - 31 Dec 2024 SCHEDULE 13G/A Report for ACELYRIN, Inc. Common Stock, par value $0.00001 per share (the "Shares")
- Filing Manager
- CITADEL ADVISORS LLC
- Reporting Manager
- Kenneth Griffin
- Shares outstanding
- 100,446,381 shares
- Disclosed Ownership
- 4,218,748 shares
- Ownership
- 4.2%
- Form type
- SCHEDULE 13G/A
- Filing time
- 14 Feb 2025, 18:13:35 UTC
- Date of event
- 31 Dec 2024
- SEC
- View on sec.gov
Quoteable Key Fact
"CITADEL ADVISORS LLC disclosed 4.2% ownership in ACELYRIN, Inc. Common Stock, par value $0.00001 per share (the "Shares") on 31 Dec 2024."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 14 Feb 2025, 18:13.
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
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (7)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Citadel Advisors LLC | 4.2% | 4,192,377 | 0 | 4,192,377 | /s/ Seth Levy | Seth Levy, Authorized Signatory | |
| Citadel Advisors Holdings LP | 4.2% | 4,192,377 | 0 | 4,192,377 | /s/ Seth Levy | Seth Levy, Authorized Signatory | |
| Citadel GP LLC | 4.2% | 4,192,377 | 0 | 4,192,377 | /s/ Seth Levy | Seth Levy, Authorized Signatory | |
| Citadel Securities LLC | 0% | 6,832 | 0 | 6,832 | /s/ Guy Miller | Guy Miller, Authorized Signatory | |
| Citadel Securities Group LP | 0% | 26,371 | 0 | 26,371 | /s/ Guy Miller | Guy Miller, Authorized Signatory | |
| Citadel Securities GP LLC | 0% | 26,371 | 0 | 26,371 | /s/ Guy Miller | Guy Miller, Authorized Signatory | |
| Kenneth Griffin | 4.2% | 4,218,748 | 0 | 4,218,748 | /s/ Seth Levy | Seth Levy, attorney-in-fact* |