4processed

Form 4 — Insider Transaction

Sionna Therapeutics, Inc.(SION)

Filing Date

June 17, 2026

Accepted

June 17, 2026

Accession No.

0001857250-26-000002

CIK

0002036042

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Fleming Harold EdwardOther17.3K$017.3KNon-Qualified Stock Option (right to buy)Jun 17, 2026