Quick Takeaways
- JPMORGAN CHASE & CO filed SCHEDULE 13G/A for SIONNA THERAPEUTICS, INC. Common Stock, $0.001 par value per share (SION).
- Disclosed ownership: 4.4%.
- Date of event: 30 Sep 2025.
JPMORGAN CHASE & CO - 30 Sep 2025 SCHEDULE 13G/A Report for SIONNA THERAPEUTICS, INC. Common Stock, $0.001 par value per share (SION)
- Filing Manager
- JPMORGAN CHASE & CO
- Reporting Manager
- JPMORGAN CHASE & CO.
- Symbol
- SION
- Shares outstanding
- 45,014,227 shares
- Disclosed Ownership
- 1,980,626 shares
- Ownership
- 4.4%
- Form type
- SCHEDULE 13G/A
- Filing time
- 31 Oct 2025, 09:48:52 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 30 Jul 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"JPMORGAN CHASE & CO disclosed 4.4% ownership in SIONNA THERAPEUTICS, INC. Common Stock, $0.001 par value per share (SION) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 30 Jul 2025.
- Current filing was accepted on 31 Oct 2025, 09:48.
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.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| JPMORGAN CHASE & CO. | 4.4% | 1,980,626 | 1,822,508 | 0 | Rachel Tsvaygoft | Vice President |