NASDAQ: SIONSionna Therapeutics Inc Stock Ownership - Who owns Sionna Therapeutics?
Insider buying vs selling
Have Sionna Therapeutics Inc insiders been buying or selling?
Buy
Sell
| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| Tpg GP A LLC | 10% Owner | 2026-01-22 | 250,000 | $40.00 | $10.00MSell |
| Orbimed Advisors LLC | Director | 2025-12-24 | 33,356 | $44.55 | $1.49MSell |
| Peter A. Thompson | Director | 2025-12-24 | 33,356 | $44.55 | $1.49MSell |
| Peter A. Thompson | Director | 2025-12-19 | 875 | $44.49 | $38.93kSell |
| Orbimed Advisors LLC | Director | 2025-12-19 | 875 | $44.49 | $38.93kSell |
| Orbimed Advisors LLC | Director | 2025-12-18 | 100 | $44.49 | $4.45kSell |
| Peter A. Thompson | Director | 2025-12-18 | 100 | $44.49 | $4.45kSell |
| Peter A. Thompson | Director | 2025-12-17 | 900 | $44.50 | $40.05kSell |
| Orbimed Advisors LLC | Director | 2025-12-17 | 900 | $44.50 | $40.05kSell |
| Jennifer Fitzpatrick | Chief Legal Officer | 2025-12-05 | 10,250 | $6.11 | $62.63kBuy |
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Net Insider Buy/Sell (L12M) Ownership
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SION Shareholders
What type of owners hold Sionna Therapeutics Inc stock?
Institutional
Insider
Retail
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Ra Capital Management LP | 23.40% | 10,445,322 | $441.42M | Institution |
| Peter A. Thompson | 16.28% | 7,266,614 | $307.09M | Insider |
| Tpg GP A LLC | 15.11% | 6,744,962 | $285.04M | Institution |
| Tpg GP A LLC | 14.55% | 6,494,962 | $274.48M | Insider |
| Orbimed Advisors LLC | 8.30% | 3,704,959 | $156.57M | Institution |
| Atlas Venture Fund XI LP | 8.28% | 3,694,020 | $156.11M | Insider |
| Atlas Venture Life Science Advisors LLC | 8.10% | 3,615,527 | $152.79M | Institution |
| Orbimed Advisors LLC | 7.98% | 3,561,655 | $150.52M | Insider |
| Viking Global Investors LP | 7.16% | 3,195,181 | $135.03M | Institution |
| Bruce Booth | 6.71% | 2,995,602 | $126.59M | Insider |
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.