Company: SION
Filing Date: 2025-02-06
Form Type: 3
Source: 0000950170-25-015732
Chunk: 1

Company: Sionna Therapeutics, Inc.
Filing Date: 2025-02-06
Form: 3
Chunk 1
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 stock    | [F1]                                                     | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F1] - [F1] | Common Stock - 719,355   | N/A | N/A | I |
| Series A convertible preferred stock       | [F1]                                                     | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F1] - [F1] | Common Stock - 1,236,271 | N/A | N/A | I |
| Series B convertible preferred stock       | [F1]                                                     | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F1] - [F1] | Common Stock - 888,599   | N/A | N/A | I |
| Series C convertible preferred stock       | [F1]                                                     | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F1] - [F1] | Common Stock - 42,068    | N/A | N/A | I |
| Series C convertible preferred stock       | [F1]                                                     | N/A                                                                         | N/A                                                    | N/A                                                      | N/A                                                   | N/A | N/A | [F1] - [F1] | Common Stock - 747,727   | N/A | N/A | I |

Remarks:

Exhibit 24 - Power of Attorney

| ** Signature of Reporting Person       
 /s/ /s/ Ommer Chohan, Attorney-in-Fact | Date       
 02/06/2025 |

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. 
 Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.