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.
Q4 2025 vs. Q3 2025
How the institutions holding Sionna Therapeutics, Inc. changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Q4 2025 | Change |
|---|---|---|---|
| Holders | 78 | 101 | +23 |
| Shares | 42.8M | 44.0M | +1.11M (+2.6%) |
| Value | $1.26B | $1.81B | +$548.2M (+43.5%) |
New holders (30)
Institutions that held Sionna Therapeutics, Inc. at the end of Q4 2025 but not at the end of Q3 2025.
Sold out (7)
Institutions that held Sionna Therapeutics, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Braidwell LP | 314,013 | $9.24M |
| Holocene Advisors, LP | 50,000 | $1.47M |
| Marshall Wace, LLP | 30,103 | $885.3K |
| Renaissance Technologies LLC | 14,600 | $429.4K |
| Jain Global LLC | 8,513 | $250.4K |
| Federated Hermes, Inc. | 113 | $3.32K |
| SRS Capital Advisors, Inc. | 92 | $2.71K |