Quick Takeaways
- VIKING GLOBAL INVESTORS LP filed SCHEDULE 13G for Sionna Therapeutics, Inc. Common Stock, $0.001 par value per share (SION).
- Disclosed ownership: 6.7%.
- Date of event: 10 Feb 2025.
VIKING GLOBAL INVESTORS LP - 10 Feb 2025 SCHEDULE 13G Report for Sionna Therapeutics, Inc. Common Stock, $0.001 par value per share (SION)
- Filing Manager
- VIKING GLOBAL INVESTORS LP
- Reporting Manager
- VIKING GLOBAL INVESTORS LP
- Symbol
- SION
- Shares outstanding
- 44,070,955 shares
- Disclosed Ownership
- 2,952,754 shares
- Ownership
- 6.7%
- Form type
- SCHEDULE 13G
- Filing time
- 14 Feb 2025, 16:58:02 UTC
- Date of event
- 10 Feb 2025
- Next filing
- 15 May 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"VIKING GLOBAL INVESTORS LP disclosed 6.7% ownership in Sionna Therapeutics, Inc. Common Stock, $0.001 par value per share (SION) on 10 Feb 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 14 Feb 2025, 16:58.
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 (11)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 6.7% | 2,952,754 | 0 | 2,952,754 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of VIKING GLOBAL INVESTORS LP (1)(2)(3) | |
| Viking Global Opportunities Parent GP LLC | 6.7% | 2,952,754 | 0 | 2,952,754 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Parent GP LLC (1)(2)(3) | |
| Viking Global Opportunities GP LLC | 4.3% | 1,894,346 | 0 | 1,894,346 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities GP LLC (1)(2)(3) | |
| Viking Global Opportunities Portfolio GP LLC | 4.3% | 1,894,346 | 0 | 1,894,346 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Portfolio GP LLC (1)(2)(3) | |
| Viking Global Opportunities Illiquid Investments Sub-Master LP | 4.3% | 1,894,346 | 0 | 1,894,346 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Illiquid Investments Sub-Master LP (1)(2)(3) | |
| Viking Global Opportunities Drawdown GP LLC | 2.4% | 1,058,408 | 0 | 1,058,408 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown GP LLC (1)(2)(3) | |
| Viking Global Opportunities Drawdown Portfolio GP LLC | 2.4% | 1,058,408 | 0 | 1,058,408 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown Portfolio GP LLC (1)(2)(3) | |
| Viking Global Opportunities Drawdown (Aggregator) LP | 2.4% | 1,058,408 | 0 | 1,058,408 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Viking Global Opportunities Drawdown (Aggregator) LP (1)(2)(3) | |
| HALVORSEN OLE ANDREAS | 6.7% | 2,952,754 | 0 | 2,952,754 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of O. Andreas Halvorsen (1) | |
| Ott David C. | 6.7% | 2,952,754 | 0 | 2,952,754 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of David C. Ott (2) | |
| Shabet Rose Sharon | 6.7% | 2,952,754 | 0 | 2,952,754 | /s/ Scott M. Hendler | Scott M. Hendler on behalf of Rose S. Shabet (3) |