Senior insider sale
CFO & Head of Corp. Dev. at SIONNA THERAPEUTICS, INC. — senior position signals high conviction
$738.0K
34.50K shares
What this filing means
RIDLOFF ELENA plans to sell 34.50K shares of SIONNA THERAPEUTICS, INC. valued at approximately $738.0K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 8/19/2025ACC: 0001950047-25-006042
Officer· CFO & Head of Corp. Dev.
Since Feb 2025
34.50K
Shares to sell
$738.0K
Approx. market value
34.50K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Previously Exercised Stock Options
Cash
9/20/2022
34.50KTotal acquired34.50K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
9/20/2022 | Previously Exercised Stock Options Cash | 34.50K | — |
| Total | 34.50K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
34.50K
Market value
$738.0K
8/19/2025
Total
Units
34.50K
Value
$738.0K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
8/19/2025 | 34.50K | $738.0K | NASDAQ | Planned |
| Total | 34.50K | $738.0K | ||