Sionna Therapeutics, Inc.
SION- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002036042
In the last 90 days, Sionna Therapeutics, Inc. insiders filed 0 open-market purchases and 3 sales; 146 institutions reported holding it in 13F filings for Q2 2026, worth $2.11B in total; Viking Global Investors is the only superinvestor holding it.
Q3 2025 vs. Q2 2025
How the institutions holding Sionna Therapeutics, Inc. changed between Q2 2025 and Q3 2025.
All holders in Q3 2025All holders in Q2 2025
| Measure | Q2 2025 | Q3 2025 | Change |
|---|---|---|---|
| Holders | 65 | 78 | +13 |
| Shares | 43.4M | 42.8M | −607.8K (−1.4%) |
| Value | $753.8M | $1.26B | +$506.1M (+67.1%) |
New holders (19)
Institutions that held Sionna Therapeutics, Inc. at the end of Q3 2025 but not at the end of Q2 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Longaeva Partners L.P. | 61,457 | $1.81M | 0.38% |
| Wellington Management Group LLP | 42,234 | $1.24M | 0.00% |
| Marshall Wace, LLP | 30,103 | $885.3K | 0.00% |
| Squarepoint Ops LLC | 10,162 | $298.9K | 0.00% |
| Jain Global LLC | 8,513 | $250.4K | 0.00% |
| Intech Investment Management LLC | 7,486 | $220.2K | 0.00% |
| China Universal Asset Management Co., Ltd. | 5,000 | $147.1K | 0.01% |
| Tower Research Capital LLC (TRC) | 4,490 | $132.1K | 0.00% |
| Russell Investments Group, Ltd. | 1,022 | $30.1K | 0.00% |
| Aster Capital Management (DIFC) Ltd | 409 | $12.0K | 0.01% |
| FMR LLC | 234 | $6.88K | 0.00% |
| GAMMA Investing LLC | 153 | $4.50K | 0.00% |
| Federated Hermes, Inc. | 113 | $3.32K | 0.00% |
| US Bancorp | 111 | $3.27K | 0.00% |
| SRS Capital Advisors, Inc. | 92 | $2.71K | 0.00% |
| CWM, LLC | 60 | $2.00K | 0.00% |
| Allworth Financial LP | 22 | $648 | 0.00% |
| EverSource Wealth Advisors, LLC | 20 | $588 | 0.00% |
| The PNC Financial Services Group, Inc. | 5 | $147 | 0.00% |
Sold out (6)
Institutions that held Sionna Therapeutics, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.
| Institution | Shares, Q2 2025 | Value, Q2 2025 |
|---|---|---|
| Prudential Financial Inc | 135,185 | $2.35M |
| Woodline Partners LP | 80,000 | $1.39M |
| Options Solutions, LLC | 16,975 | $294.5K |
| Susquehanna International Group, LLP | 14,834 | $257.4K |
| Commonwealth Equity Services, LLC | 14,017 | $243.0K |
| STRS Ohio | 2,300 | $39.9K |