Sionna Therapeutics, Inc. · NASDAQ:SION
Sionna Therapeutics, Inc. shareholders
As of Jun 30, 2026, 141 institutions reported holding Sionna Therapeutics, Inc. Largest: Ra Capital Management, L.P., Tpg Gp A, LLC and Viking Global Investors LP. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Sionna Therapeutics, Inc. | Change | Filed |
|---|---|---|---|---|
| Ra Capital Management, L.P. | 9.91M | no change | Aug 14, 2026 | |
| Tpg Gp A, LLC | 6.49M | no change | Aug 14, 2026 | |
| Viking Global Investors LP | 3.2M | no change | Aug 14, 2026 | |
| Atlas Venture Life Science Advisors, LLC | 3M | no change | Aug 13, 2026 | |
| Orbimed Advisors LLC | 2.56M | −975K | Aug 14, 2026 | |
| Enavate Sciences Gp, LLC | 2.48M | no change | Aug 14, 2026 | |
| Adage Capital Partners Gp, L.L.C. | 1.6M | +1.45M | Aug 14, 2026 | |
| Vanguard | 1.5M | +202K | Aug 13, 2026 | |
| JPMorgan | 1.49M | +25,494 | Aug 12, 2026 | |
| BlackRock | 1.47M | +179K | Aug 7, 2026 |