Paul J. Clancy - 06 Feb 2025 Form 3 Insider Report for Sionna Therapeutics, Inc. (SION)

Role: Director
Signature: /s/ Jennifer Fitzpatrick, Attorney-in-Fact
Issuer symbol: SION
Transactions as of: 06 Feb 2025
Net transactions value: $0
Form type: 3
Filing time: 06 Feb 2025, 21:02:11 UTC
Previous filing: 03 Jan 2025
Next filing: 02 Apr 2025
SEC: View on sec.gov

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	SION	Stock Option (Right to Buy)							06 Feb 2025	Common Stock	119,772	$6.11	Direct	F1
holding	SION	Stock Option (Right to Buy)							06 Feb 2025	Common Stock	65,713	$6.11	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares underlying this option vest in sixteen equal quarterly installments following June 6, 2022, subject to the Reporting Person's continued service on each such vesting date.
F2	The shares underlying this option vest in forty-eight equal monthly installments following March 4, 2024, subject to the Reporting Person's continued service on each such vesting date.

Remarks:

Exhibit 24 - Power of Attorney