Machine signal
Active cluster sell — 4 distinct insiders, $40.5M, window ends Sep 17, 2026.
Figures computed from official regulatory filings — .
Ask the machine
Search and compare insider transactions, companies and their statistics in plain language. Your question becomes a query over available data, not a conversation or investment advice.
Data for Sionna Therapeutics, Inc. only. No web search. Global per-insider statistics are excluded.
An executed search uses one credit, even with no results. Errors and unsupported questions use no credits.
Business description unavailable in our sources.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
8 buys160 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, LLCtrack record | Sell | $21.6M | SEC |
| RA CAPITAL MANAGEMENT, LLCtrack record | Sell | $252.1K | SEC |
| Cloonan Michael | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cloonan Michael | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ridloff Elena | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ridloff Elena | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cloonan Michael | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fitzpatrick Jennifer | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fitzpatrick Jennifer | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ridloff Elena | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cloonan Michael | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKee Charlotte | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Ridloff Elena | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKee Charlotte | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fitzpatrick Jennifer | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKee Charlotte | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| McKee Charlotte | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Fitzpatrick Jennifer | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| ORBIMED ADVISORS LLCtrack record | Sell | $3.9M | SEC |
| Thompson Peter Atrack record | Sell | $3.9M | SEC |
| Fitzpatrick Jennifer | Sell | $446.9K | SEC |
| Fitzpatrick Jennifer | Exercise | $62.6K | SEC |
| Fitzpatrick Jennifer | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Thompson Peter Atrack record | Sell | $5.3M | SEC |
| ORBIMED ADVISORS LLCtrack record | Sell | $5.3M | SEC |