# MBX Biosciences, Inc.: Form S-1, filed Sep 22, 2025

- Company: [MBX Biosciences, Inc.](/companies/mbx.md) (CIK 1776111)
- Form: S-1
- Filed: 2025-09-22
- Accepted by EDGAR: Sep 22, 2025, 16:12 ET
- Period: not reported
- Accession: 0001193125-25-211320
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1776111/000119312525211320/mbx-20250922.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1776111/000119312525211320/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1776111/000119312525211320/mbx-20250922.htm

Filed Sep 22, 2025.
Source: SEC EDGAR, the filing index for accession 0001193125-25-211320. Last ingested by Listed: Nov 5, 2026, 17:27 ET. No prices; not investment advice.