Form 4 Tracker
Sionna Therapeutics, Inc.
SION

10 insider filings · Latest: May 7, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 26, 2025Sep 26 8:31 PMMICHAEL CLOONAN
Proposed Sale
25,000$27.50$687.5K

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Sep 4, 2025Sep 4 8:24 PMJENNIFER R FITZPATRICK
Proposed Sale
10,250$24.55$251.6K

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Aug 26, 2025Aug 26 8:28 PMMICHAEL CLOONAN
Proposed Sale
25,000$24.06$601.5K

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Aug 26, 2025Aug 26 8:28 PMELENA RIDLOFF
Proposed Sale
33,000$24.06$794.0K

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Aug 20, 2025Aug 20 8:26 PMELENA RIDLOFF
Proposed Sale
17,500$21.48$375.9K

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Aug 20, 2025Aug 20 8:22 PMMICHAEL CLOONAN
Proposed Sale
25,000$21.48$537.0K

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Aug 19, 2025Aug 19 8:26 PMELENA RIDLOFF
Proposed Sale
34,500$21.39$738.0K

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Page 5 of 5

Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Mar 5, 2026Mar 6 11:56 PMJennifer FitzpatrickChief Legal Officer
Option Exercise
10,250$6.1150,935(D)

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