Michael Cloonan
Director, President & CEO · 1 filing · Latest: Sep 17, 2026
Sionna Therapeutics, Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
SION | MICHAEL CLOONAN | — | Oct 21, 2025 | Proposed Sale | $32.20 | 99,800 | $3.2M | — | |
SION | MICHAEL CLOONAN | — | Oct 16, 2025 | Proposed Sale | $30.91 | 200 | $6.2K | — | |
SION | MICHAEL CLOONAN | — | Oct 15, 2025 | Proposed Sale | $29.94 | 25,000 | $748.5K | — | |
SION | MICHAEL CLOONAN | — | Sep 26, 2025 | Proposed Sale | $27.50 | 25,000 | $687.5K | — | |
SION | MICHAEL CLOONAN | — | Aug 26, 2025 | Proposed Sale | $24.06 | 25,000 | $601.5K | — | |
SION | MICHAEL CLOONAN | — | Aug 20, 2025 | Proposed Sale | $21.48 | 25,000 | $537.0K | — |