Stocktoria
Sionna Therapeutics, Inc. SION
Nasdaq · stock · Pharmaceutical Preparations · website · IPO 2025-02-07
Sionna Therapeutics, Inc. institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 3,195,181 | $140.6M | 7.14% |
| CITADEL ADVISORS LLC | 1,156,036 | $50.9M | 2.58% |
| MILLENNIUM MANAGEMENT LLC | 325,333 | $14.3M | 0.73% |
| D. E. Shaw & Co., Inc. | 101,644 | $4.5M | 0.23% |
| Point72 Asset Management, L.P. | 49,328 | $2.2M | 0.11% |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.