SION
Sionna Therapeutics, Inc.
14 disclosed insider filings · 7 distinct insiders · latest Sep 21, 2026
Total filings
14
7 insiders
Insider buys
0
$0
Insider sells
5
$30M
Grants & other
0
$0
All disclosed filings
Same-day tranches are grouped per insider - the Lots column shows how many individual executions a row covers; Price is the value-weighted average.
| Filed | Tx date | Insider | Type | Qty | Avg price | Value | Lots | Source |
|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | Sep 17, 2026 | RA Capital Management L P INSIDER | SELL | 3,448,811 | $6.33 | $22M | 2 | EDGAR |
| Sep 18, 2026 | Sep 17, 2026 | Elena Ridloff OFFICER | OTHER | 94,537 | — | — | 2 | EDGAR |
| Sep 18, 2026 | Sep 17, 2026 | Charlotte Mckee OFFICER | OTHER | 100,000 | — | — | 2 | EDGAR |
| Sep 18, 2026 | Sep 17, 2026 | Jennifer Fitzpatrick OFFICER | OTHER | 56,265 | — | — | 2 | EDGAR |
| Sep 18, 2026 | Sep 17, 2026 | Michael Cloonan OFFICER | OTHER | 218,050 | — | — | 2 | EDGAR |
| Jul 9, 2026 | Jul 7, 2026 | Orbimed Advisors LLC DIRECTOR | SELL | 85,918 | $44.86 | $3.9M | — | EDGAR |
| Jul 9, 2026 | Jul 7, 2026 | Peter A Thompson DIRECTOR | SELL | 85,918 | $44.86 | $3.9M | — | EDGAR |
| Jul 7, 2026 | Jul 6, 2026 | Jennifer Fitzpatrick OFFICER | SELL | 10,250 | $43.6 | $447K | — | EDGAR |
| Jul 7, 2026 | Jul 6, 2026 | Jennifer Fitzpatrick OFFICER | OTHER | 10,250 | $6.11 | $63K | — | EDGAR |