MBX Biosciences, Inc. 4

No insider trades were reported; the document is a power of attorney authorizing SEC filing on behalf of John W. Smither.

This filing is not a Form 4 reporting an insider transaction but rather an Exhibit 24 Limited Power of Attorney in which John W. Smither authorizes designated individuals at MBX Biosciences, Inc. to sign and file Forms 3, 4, 5, and Schedules 13D/G on his behalf. It formalizes administrative authority for future Section 16 and beneficial ownership filings and does not itself involve any purchase, sale, grant, or other change in beneficial ownership of the company’s securities.

Filing Facts

CIK

1776111

Ticker

MBX

Form

4

Source Type

fda

Accession

0001193125-26-331642

Alert Tier

4