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 | $131.4M | 7.14% |
| CITADEL ADVISORS LLC | 1,166,931 | $46.8M | 2.61% |
| MILLENNIUM MANAGEMENT LLC | 140,641 | $5.6M | 0.31% |
| Point72 Asset Management, L.P. | 136,549 | $5.5M | 0.31% |
| TWO SIGMA INVESTMENTS, LP | 5,500 | $220,495 | 0.01% |
% 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.