New Enterprise Associates 17, L.P. - Nov 6, 2025 SCHEDULE 13D/A Report for MBX Biosciences, Inc. Common Stock, par value $0.0001 per share (MBX)

Filing Manager
New Enterprise Associates 17, L.P.
Reporting Manager
Edward T. Mathers
Security
MBX Biosciences, Inc. Common Stock, par value $0.0001 per share
Symbol
MBX
Shares outstanding
44.7M shares
Disclosed Ownership
3.62M shares
Ownership
8.1%
Form type
SCHEDULE 13D/A
Date filed
11/10/2025, 05:08 PM
Date of event
Nov 6, 2025
SEC
View on sec.gov

Reporting Managers (12)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
New Enterprise Associates 17, L.P. 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001768564
NEA Partners 17, L.P. 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001796820
NEA 17 GP, LLC 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer 0001796821
Forest Baskett 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Forest Baskett 0001277631
Ali Behbahani 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Ali Behbahani 0001613867
Carmen Chang 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Carmen Chang 0001746342
Anthony A. Florence, Jr. 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Anthony A. Florence, Jr. 0001559827
Mohamad H. Makhzoumi 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi 0001630226
Edward T. Mathers 8.1% 3.62M 4.99K 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Edward T. Mathers 0001328625
Scott D. Sandell 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Scott D. Sandell 0001237289
Paul Walker 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Paul Walker 0001553150
Rick Yang 8.1% 3.61M 0 3.61M /s/ Zachary Bambach Zachary Bambach as attorney-in-fact for Rick Yang 0001851328