John W. Smither - 16 Mar 2026 Form 3 Insider Report for MBX Biosciences, Inc. (MBX)

Signature
/s/ P. Kent Hawryluk, attorney-in-fact
Issuer symbol
MBX
Transactions as of
16 Mar 2026
Net transactions value
$0
Form type
3
Filing time
18 Mar 2026, 16:05:03 UTC
Previous filing
09 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Smither John W Chief Financial Officer 11711 N. MERIDIAN STREET, SUITE 300, CARMEL /s/ P. Kent Hawryluk, attorney-in-fact 18 Mar 2026 0001559583

No securities are beneficially owned.

Remarks:

Exhibit 24 - Power of Attorney