Form 4: Sionna Therapeutics CFO Receives Stock Grant
Insider Transaction (Form 4)
Elena Ridloff, CFO and CBO of Sionna Therapeutics, Inc., reported multiple transactions in common stock on September 17, 2026.
Summary
- Grant/award: acquired 47,269 Common Stock on September 17, 2026; holds 85,801 after (Direct).
- Grant/award: acquired 47,268 Common Stock on September 17, 2026; holds 133,069 after (Direct).
- Grant/award: acquired 165,440 Non-Qualified Stock Option (right to buy) on September 17, 2026; holds 165,440 after (Direct).
- Disposition to the issuer: disposed of 165,440 Non-Qualified Stock Option (right to buy) on September 17, 2026 (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Elena Ridloff — Officer (CFO and CBO)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-17 | Grant/award | Common Stock | 47,269 | — | — | 85,801 |
| 2026-09-17 | Grant/award | Common Stock | 47,268 | — | — | 133,069 |
| 2026-09-17 | Grant/award | Non-Qualified Stock Option (right to buy) | 165,440 | — | — | 165,440 |
| 2026-09-17 | Disposition to the issuer | Non-Qualified Stock Option (right to buy) | 165,440 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-17 | Grant/award (47,269 shares) |
| 2026-09-17 | Grant/award (47,268 shares) |
| 2026-09-17 | Grant/award (165,440 shares) |
| 2026-09-17 | Disposition to the issuer (165,440 shares) |
Keywords
insider transaction, Form 4, SION, Sionna Therapeutics, Inc., neutral, Elena Ridloff
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