Stocks · Health care · Pharmaceutical Preparations

Sionna Therapeutics, Inc.

SION Clue Score29
United States Fiscal year ends December CIK 0002036042 Results filed 6 Aug 2026

What the insiders did Net buying

Insider
Date
Role
Action
Shares
Price
Amount
Jennifer Fitzpatrick
6 Jul 2026
Chief Legal Officer
Sold after exercise
10,250
$43.60
$446.86K
Jennifer Fitzpatrick
5 Mar 2026
Chief Legal Officer
Sold after exercise
10,250
$33.86
$347.02K
Jennifer Fitzpatrick
5 Dec 2025
Chief Legal Officer
Sold after exercise
10,250
$40.52
$415.33K
Michael Cloonan
21 Oct 2025
President & CEO
Sold after exercise
33,532
$37.31
$1.25M
Michael Cloonan
21 Oct 2025
President & CEO
Sold after exercise
22,895
$36.60
$837.96K
Michael Cloonan
21 Oct 2025
President & CEO
Sold after exercise
30,049
$35.63
$1.07M
Michael Cloonan
21 Oct 2025
President & CEO
Sold after exercise
13,324
$34.44
$458.88K
Michael Cloonan
16 Oct 2025
President & CEO
Sold after exercise
200
$34.00
$6.80K
Michael Cloonan
16 Oct 2025
President & CEO
Sold after exercise
10,225
$31.46
$321.69K
Michael Cloonan
15 Oct 2025
President & CEO
Sold after exercise
14,775
$31.11
$459.66K
Michael Cloonan
29 Sep 2025
President & CEO
Sold after exercise
7,793
$29.70
$231.45K
Michael Cloonan
26 Sep 2025
President & CEO
Sold after exercise
17,207
$28.85
$496.35K
Jennifer Fitzpatrick
4 Sep 2025
Chief Legal Officer
Sold after exercise
10,250
$23.12
$236.98K
Michael Cloonan
27 Aug 2025
President & CEO
Sold after exercise
7,426
$25.01
$185.71K
Michael Cloonan
26 Aug 2025
President & CEO
Sold after exercise
17,574
$24.96
$438.65K
Michael Cloonan
20 Aug 2025
President & CEO
Sold after exercise
25,000
$22.75
$568.75K

What was left out

Form 4 filings counted 82
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 22
Sales on a Rule 10b5-1 plan 97
Sales straight out of an exercise 16
Sales at will 47
Transactions with no price 0
Shares from compensation/vesting 27,114,850
History held since 10 Feb 2025