ORBIMED ADVISORS LLC sold 9.9% of their position (292.95K shares) of SIONNA THERAPEUTICS, INC. on the open market
Open‑market sale worth $13.36M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 3 sales
Filed: 5/11/2026ACC: 0000947871-26-000517
Director
Since Feb 2026
-292.95K
Net shares
Net seller
$13.36M
Total sold
3
Open market trades
0B · 3S
3
Total transactions
292.95K disposed
Non-Derivative Transactions3
Common Stock
Indirect
Shares
−48.55K
Price / share
$44.61
Trade value
$2.17M
% of position
1.6%
5/7/2026
2.96M→2.92M
Common Stock
Indirect
Shares
−59.77K
Price / share
$44.58
Trade value
$2.66M
% of position
2.0%
5/8/2026
2.92M→2.86M
Common Stock
Indirect
Shares
−184.64K
Price / share
$46.22
Trade value
$8.53M
% of position
6.5%
5/11/2026
2.86M→2.67M
Total
Net shares
−292.95K
Net value
-$13.36M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 5/7/2026 | S · Sale | −48.55K | $44.61 | $2.17M | 1.6% | 2.96M | 2.92M |
| Common Stock Indirect | 5/8/2026 | S · Sale | −59.77K | $44.58 | $2.66M | 2.0% | 2.92M | 2.86M |
| Common Stock Indirect | 5/11/2026 | S · Sale | −184.64K | $46.22 | $8.53M | 6.5% | 2.86M | 2.67M |
| Total | −292.95K | -$13.36M | ||||||
Derivative Transactions0
No derivative transactions reported