# CORRESP — MBX Biosciences, Inc. (MBX) (CIK 0001776111) > MBX Biosciences, Inc. (MBX) (CIK 0001776111) → SEC staff · filed 2025-09-22 · ticker MBX · SIC 2834 ## What is this A CORRESP letter is the company's written reply to the SEC during a filing review. Responses include accounting position arguments, restatement assessments, and clarifying disclosures. Released to EDGAR alongside the SEC's UPLOAD letters. ## Key facts - **Accession number:** 0001193125-25-211387 - **Form:** CORRESP - **Filer:** MBX Biosciences, Inc. (MBX) (CIK 0001776111) - **CIK:** 0001776111 - **Ticker:** MBX - **Filed:** 2025-09-22 - **SIC industry:** 2834 - **HQ:** Carmel, IN ## Primary source PDF letter: https://www.sec.gov/Archives/edgar/data/1776111/000119312525211387/filename1.htm EDGAR review history for this filer: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1776111&type=UPLOAD&dateb=&owner=include&count=40 ## Other comment-letter activity for MBX Biosciences, Inc. (MBX) (CIK 0001776111) - CORRESP — 2025-12-04 — /comment-letter/0001193125-25-308171 - CORRESP — 2025-09-22 — /comment-letter/0001193125-25-211393 ## Citation > US Securities and Exchange Commission, EDGAR CORRESP comment letter, MBX Biosciences, Inc. (MBX) (CIK 0001776111) (CIK 0001776111), filed 2025-09-22, accession 0001193125-25-211387. Retrieved via MORVS 2026-11-04 from https://api.morvs.ai/comment-letter/0001193125-25-211387. --- *[SEC comment letters dataset](/datasets/sec-comment-letters) · CC0 1.0*