Laurie Stelzer - 20 Jan 2026 Form 3 Insider Report for MBX Biosciences, Inc. (MBX)

Role
Director
Signature
/s/ Richard Bartram, attorney-in-fact
Issuer symbol
MBX
Transactions as of
20 Jan 2026
Net transactions value
$0
Form type
3
Filing time
22 Jan 2026, 08:06:55 UTC
Previous filing
16 Jun 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Stelzer Laurie Director C/O MBX BIOSCIENCES, INC., 11711 N. MERIDIAN STREET, STE 300, CARMEL /s/ Richard Bartram, attorney-in-fact 22 Jan 2026 0001644348

No securities are beneficially owned.

Remarks:

Exhibit 24 - Power of Attorney