Sionna Therapeutics, Inc. SION
We take great care to ensure that the data presented and summarized in this overview for Sionna Therapeutics, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Latest Institutional Activity in SION
Top Purchases
Top Sells
About SION
Insider Transactions at SION
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Dec 24
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
33,356
-0.93%
|
$1,467,664
$44.55 P/Share
|
|
Dec 24
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
33,356
-0.93%
|
$1,467,664
$44.55 P/Share
|
|
Dec 19
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
875
-0.02%
|
$38,500
$44.49 P/Share
|
|
Dec 19
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
875
-0.02%
|
$38,500
$44.49 P/Share
|
|
Dec 18
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
100
-0.0%
|
$4,400
$44.49 P/Share
|
|
Dec 18
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
100
-0.0%
|
$4,400
$44.49 P/Share
|
|
Dec 17
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
900
-0.03%
|
$39,600
$44.5 P/Share
|
|
Dec 17
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
900
-0.03%
|
$39,600
$44.5 P/Share
|
|
Dec 05
2025
|
Jennifer Fitzpatrick Chief Legal Officer |
SELL
Open market or private sale
|
Direct |
10,250
-100.0%
|
$410,000
$40.52 P/Share
|
|
Dec 05
2025
|
Jennifer Fitzpatrick Chief Legal Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
10,250
+50.0%
|
$61,500
$6.11 P/Share
|
|
Nov 26
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
1,600
-0.04%
|
$70,400
$44.49 P/Share
|
|
Nov 26
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
1,600
-0.04%
|
$70,400
$44.49 P/Share
|
|
Nov 25
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
11,890
-0.33%
|
$523,160
$44.6 P/Share
|
|
Nov 25
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
11,890
-0.33%
|
$523,160
$44.6 P/Share
|
|
Nov 24
2025
|
Orbimed Advisors LLC Director |
SELL
Open market or private sale
|
Indirect |
94,583
-2.55%
|
$4,161,652
$44.54 P/Share
|
|
Nov 24
2025
|
Peter A. Thompson Director |
SELL
Open market or private sale
|
Indirect |
94,583
-2.55%
|
$4,161,652
$44.54 P/Share
|
|
Nov 21
2025
|
Ra Capital Management, L.P. |
SELL
Open market or private sale
|
Indirect |
25,183
-1.59%
|
$982,137
$39.5 P/Share
|
|
Nov 20
2025
|
Ra Capital Management, L.P. |
SELL
Open market or private sale
|
Indirect |
5,133
-0.16%
|
$205,320
$40.2 P/Share
|
|
Nov 19
2025
|
Ra Capital Management, L.P. |
SELL
Open market or private sale
|
Indirect |
47,442
-1.4%
|
$1,897,680
$40.31 P/Share
|
|
Nov 18
2025
|
Ra Capital Management, L.P. |
SELL
Open market or private sale
|
Indirect |
6,922
-0.4%
|
$269,958
$39.57 P/Share
|
Last 12 Months Summary
Buy / Acquisition
30.2M
Shares
From
14
Insiders
| Conversion of derivative security | 26.4M shares |
|---|---|
| Open market or private purchase | 3.53M shares |
| Exercise of conversion of derivative security | 221K shares |
Sell / Disposition
1.83M
Shares
From
7
Insiders
| Open market or private sale | 1.83M shares |
|---|