Company: SION
Filing Date: 2025-02-03
Form Type: S-1/A
Source: 0001193125-25-018825
Chunk: 289

Company: Sionna Therapeutics, Inc.
Filing Date: 2025-02-03
Form: S-1/A
Chunk 289
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) Advisors, LLC and Alabama Investments is TPG GP A, LLC, a Delaware limited liability company, which is controlled by entities owned by 
 David Bonderman, James G. Coulter and Jon Winkelried. Messrs. Bonderman, Coulter and Winkelried disclaim beneficial ownership of the securities held by RFS and RFS II except to the extent of their pecuniary interest therein. Lucian Iancovici, M.D.   
 is a managing director with TPG Growth and expressly disclaims beneficial ownership of the shares held by RFS and RFS II. The address of each of these entities and individuals is 301 Commerce Street, Suite 3300, Fort Worth, TX 76102.                 |

| (6) | Consists of (i) 578,408 shares of common stock issuable upon the conversion of Series C preferred stock held by                                                                                                                                    
 Viking Global Opportunities Drawdown (Aggregator) LP (the “Drawdown Fund”) which has the authority to dispose of and vote such shares which power may be exercised by its general partner, Viking Global Opportunities Drawdown Portfolio GP       
 LLC (the “Drawdown GP”) and (ii) 1,174,346 shares of common stock issuable upon the conversion of Series C preferred stock held by Viking Global Opportunities Illiquid Investments Sub-Master LP                                                  
 ( the “Opportunities Fund”), which has the authority to dispose of and vote such shares which power may be exercised by its general partner, Viking Global Opportunities Portfolio GP LLC (the “Opportunities GP”). Viking Global                  
 Investors LP (“VGI”), which provides managerial services to the Drawdown Fund and the Opportunities Fund, has the authority to dispose of and vote the shares held by the Opportunities Fund and the Drawdown Fund. O. Andreas Halvorsen, David    
 C. Ott and Rose Shabet, as Executive Committee members of Viking Global Partners LLC (the general partner of VGI) and Viking Global Opportunities Parent GP LLC, the sole member of each of (a) Viking Global Opportunities Drawdown GP LLC (which 
 is 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,