RIDLOFF ELENA (CFO & Head of Corp. Dev.) sold 19.9% of their position (9.58K shares) of SIONNA THERAPEUTICS, INC. on the open market
Open‑market sale worth $240.4K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 2 sales
Filed: 9/3/2025ACC: 0002036042-25-000053
Officer· CFO & Head of Corp. Dev.
Since Feb 2025
-9.58K
Net shares
Net seller
$240.4K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
9.58K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
−748.00
Price / share
$25.18
Trade value
$18.83K
% of position
1.6%
8/29/2025
48.12K→47.37K
Common Stock
Direct
Shares
−8.84K
Price / share
$25.08
Trade value
$221.61K
% of position
18.7%
9/2/2025
47.37K→38.53K
Total
Net shares
−9.58K
Net value
-$240.44K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/29/2025 | S · Sale | −748.00 | $25.18 | $18.83K | 1.6% | 48.12K | 47.37K |
| Common Stock Direct | 9/2/2025 | S · Sale | −8.84K | $25.08 | $221.61K | 18.7% | 47.37K | 38.53K |
| Total | −9.58K | -$240.44K | ||||||
Derivative Transactions0
No derivative transactions reported