Company: SION
Filing Date: 2025-04-29
Form Type: DEF 14A
Source: 0001193125-25-101830
Chunk: 61

Company: Sionna Therapeutics, Inc.
Filing Date: 2025-04-29
Form: DEF 14A
Chunk 61
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 the sole member of the Drawdown GP) and (b) Viking Global Opportunities GP LLC (which is the sole member of the Opportunities GP), have shared authority to direct the voting and disposition of investments beneficially owned by VGI, the Opportunities GP and the Drawdown GP, respectively. The address of each of these entities and individuals is c/o Viking Global Investors LP, 600 Washington Blvd., Floor 11, Stamford, CT 06901. |

| (7) | Consists of (i) 547,343 shares of restricted common stock and (ii) 519,877 shares of common stock subject to options exercisable within 60 days of April 15, 2025. |

| (8) | Consists of (i) 28,415 shares of restricted common stock and (ii) 145,893 shares of common stock subject to options exercisable within 60 days of April 15, 2025. |

| (9) | Consists of (i) 123,532 shares of restricted common stock and (ii) 172,792 shares of common stock subject to options exercisable within 60 days of April 15, 2025. |

| (10) | Consists of 110,364 shares of common stock subject to options exercisable within 60 days of April 15, 2025. |

| (11) | See footnotes 7 through 10 above. Also includes 46,844 shares of common stock subject to options exercisable within 60 days of April 15, 2025, held by Jennifer Fitzpatrick. |

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### REPORT OF THE AUDIT COMMITTEE
The audit committee is appointed by the board of directors to assist the board of directors in fulfilling its oversight responsibilities with respect to (1) the integrity of Sionna’s financial statements and financial reporting process and systems of internal controls regarding finance, accounting, and compliance with legal and regulatory requirements, (2) the qualifications, independence, and performance of Sionna’s independent registered public accounting firm, (3) the performance of Sionna’s internal audit function, if any, and (4) other matters as set forth in the charter of the audit committee approved by the board of directors.

Management is responsible for the preparation of Sionna’s financial statements and the financial reporting process, including its system of internal control over financial reporting and its disclosure controls and procedures. The independent registered public accounting firm is responsible for performing an audit of Sionna Ther