Viney Joanne L. 4

What Happened

• Joanne L. Viney, a director of Sionna Therapeutics, was granted a derivative award representing 17,340 shares on June 17, 2026. The reported acquisition price is $0.00, so no cash was paid at grant and no immediate market value was realized by the insider.

Key Details

• Transaction date: 2026-06-17; filing date: 2026-06-18 (timely filing).
• Transaction type/code: A (Award/Grant, derivative).
• Shares granted: 17,340; reported price: $0.00; reported transaction value: $0.
• Shares owned after transaction: Not specified in the provided excerpt of the filing.
• Footnote: The award vests in full upon the earlier of June 17, 2027 or the date of Sionna’s next annual meeting, subject to Viney’s continued service on the vesting date.

Context

• This is a time-based equity award (derivative) that vests in the future rather than an open-market purchase or sale. It does not represent an immediate buy/sell market signal and requires continued service to vest.