Elena Ridloff - 06 Feb 2025 Form 3 Insider Report for Sionna Therapeutics, Inc. (SION)

Role
CFO & Head of Corp. Dev.
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, 21:00:06 UTC
Previous filing
26 Jun 2024
Next filing
03 Jun 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding SION Common Stock 123,532 06 Feb 2025 Direct

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 32,509 $0.7800 Direct F1
holding SION Stock Option (Right to Buy) 06 Feb 2025 Common Stock 109,605 $6.11 Direct F2
holding SION Stock Option (Right to Buy) 06 Feb 2025 Common Stock 145,751 $6.11 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 25% of the shares underlying this option vested on September 14, 2022, with the remainder vesting in thirty-six equal monthly installments thereafter, 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 February 2, 2022, subject to the Reporting Person's continued service on each such vesting date.
F3 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.