Senior insider sale
President & CEO at SIONNA THERAPEUTICS, INC. — senior position signals high conviction
$1.88M
75K shares
What this filing means
CLOONAN MICHAEL plans to sell 75K shares of SIONNA THERAPEUTICS, INC. valued at approximately $1.88M. 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: 9/26/2025ACC: 0001950047-25-007533
DirectorOfficer· President & CEO
Since Feb 2025
75K
Shares to sell
$1.88M
Approx. market value
25K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Exercise of Stock Options
Cash
9/26/2025
25KTotal acquired25K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
9/26/2025 | Exercise of Stock Options Cash | 25K | — |
| Total | 25K | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
7.43K
Market value
$185.7K
8/27/2025
—Completed
Units to sell
17.57K
Market value
$438.7K
8/26/2025
—Completed
Units to sell
25K
Market value
$568.7K
8/20/2025
Planned — Approximate Date
NASDAQPlanned
Units to sell
25K
Market value
$687.5K
9/26/2025
Total
Units
75K
Value
$1.88M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
8/27/2025 | 7.43K | $185.7K | — | Completed |
8/26/2025 | 17.57K | $438.7K | — | Completed |
8/20/2025 | 25K | $568.7K | — | Completed |
| Planned — Approximate Date | ||||
9/26/2025 | 25K | $687.5K | NASDAQ | Planned |
| Total | 75K | $1.88M | ||