Company · CIK 2036042

# Sionna Therapeutics, Inc.

| CIK | [2036042](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0002036042) (SEC EDGAR) |
| --- | --- |
| Industry (SIC) | 2834 — Pharmaceutical Preparations |
| Incorporated in | DE |
| Business address | MA |
| Listed | SION (Nasdaq) |
| First annual or quarterly report | 2025-03-20 |

## Offerings

 2 registrations

| Registration | Label and status | First filed | Last event | Filings |
| --- | --- | --- | --- | --- |
| 333-293909 | Shelf Effective | 2026-03-02 | 2026-03-02 | 1 |
| 333-284352 | IPO Final prospectus | 2025-01-17 | 2025-02-07 | 4 |

## Filings

 6

| Filed | Filing | Registration | Accession |
| --- | --- | --- | --- |
| 2026-03-02 | [S-3ASR](https://www.sec.gov/Archives/edgar/data/2036042/000119312526084308/0001193125-26-084308-index.htm) Shelf registered | 333-293909 | 0001193125-26-084308 |
| 2025-02-07 | [424B4](https://www.sec.gov/Archives/edgar/data/2036042/000119312525022709/0001193125-25-022709-index.htm) Final prospectus | 333-284352 | 0001193125-25-022709 |
| 2025-02-06 | [EFFECT](https://www.sec.gov/Archives/edgar/data/2036042/999999999525000339/9999999995-25-000339-index.htm) Declared effective | 333-284352 | 9999999995-25-000339 |
| 2025-02-03 | [S-1/A](https://www.sec.gov/Archives/edgar/data/2036042/000119312525018825/0001193125-25-018825-index.htm) Amendment | 333-284352 | 0001193125-25-018825 |
| 2025-01-17 | [S-1](https://www.sec.gov/Archives/edgar/data/2036042/000119312525008474/0001193125-25-008474-index.htm) Registration filed | 333-284352 | 0001193125-25-008474 |
| 2024-09-12 | [DRS](https://www.sec.gov/Archives/edgar/data/2036042/000095012324009204/0000950123-24-009204-index.htm) Draft made public | 377-07436 | 0000950123-24-009204 |

[All filings of this company](https://equitycapital.markets/filings?cik=2036042) · [CSV](https://equitycapital.markets/filings.csv?cik=2036042)

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Source page: https://equitycapital.markets/company/2036042 · Data: U.S. SEC EDGAR · CC BY 4.0