Steven L. Hoerter - 17 Oct 2025 Form 4 Insider Report for MBX Biosciences, Inc. (MBX)

Role
Director
Signature
/s/ Richard Bartram, attorney-in-fact
Issuer symbol
MBX
Transactions as of
17 Oct 2025
Net transactions value
+$264,984
Form type
4
Filing time
20 Oct 2025, 16:44:37 UTC
Previous filing
20 Jun 2025
Next filing
07 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hoerter Steven L. Director C/O MBX BIOSCIENCES INC., 11711 N. MERIDIAN STREET, SUITE 300, CARMEL /s/ Richard Bartram, attorney-in-fact 20 Oct 2025 0001533451

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MBX Common Stock Purchase $264,984 +20,000 $13.25 20,000 17 Oct 2025 By Trust F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares held by the Steven L Hoerter Revocable Trust dated November 2, 2018, of which the Reporting Person serves as trustee. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose.