RIDLOFF ELENA (CFO & Head of Corp. Dev.) sold 32.7% of their position (23.42K shares) of SIONNA THERAPEUTICS, INC. on the open market
Open‑market sale worth $601.9K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 3 sales
Filed: 8/28/2025ACC: 0002036042-25-000050
Officer· CFO & Head of Corp. Dev.
Since Feb 2025
-23.42K
Net shares
Net seller
$601.9K
Total sold
3
Open market trades
0B · 3S
3
Total transactions
23.42K disposed
Non-Derivative Transactions3
Common Stock
Direct
Shares
−3.70K
Price / share
$25.13
Trade value
$92.98K
% of position
5.2%
8/26/2025
71.53K→67.83K
Common Stock
Direct
Shares
−3.62K
Price / share
$25.10
Trade value
$90.81K
% of position
5.3%
8/27/2025
67.83K→64.21K
Common Stock
Direct
Shares
−16.10K
Price / share
$25.97
Trade value
$418.07K
% of position
25.1%
8/28/2025
64.21K→48.12K
Total
Net shares
−23.42K
Net value
-$601.86K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/26/2025 | S · Sale | −3.70K | $25.13 | $92.98K | 5.2% | 71.53K | 67.83K |
| Common Stock Direct | 8/27/2025 | S · Sale | −3.62K | $25.10 | $90.81K | 5.3% | 67.83K | 64.21K |
| Common Stock Direct | 8/28/2025 | S · Sale | −16.10K | $25.97 | $418.07K | 25.1% | 64.21K | 48.12K |
| Total | −23.42K | -$601.86K | ||||||
Derivative Transactions0
No derivative transactions reported