Boardroom Alpha
Meeting calendar
MBX · Annual meeting · Thursday, June 4, 2026

Mbx Biosciences Inc

2 nominees · 2 ballot items.

Elect two Class II directors (Patrick J. Heron and Edward T. Mathers) to three-year terms and ratify Ernst & Young LLP as MBX’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

Market cap
$3.0B
1Y TSR
+314.9%
Board grade
C
Record date
Apr 10, 2026
Filing
DEF 14A
Meeting concluded · Jun 4, 2026

Follow how the vote landed and what changed on Mbx Biosciences Inc’s board — director track records, governance grades, and ongoing monitoring — on the Boardroom Alpha platform.

Proposals

On the ballot2

  1. 1

    Election of Class II Directors

    ManagementBoard: FOR

    Elect two Class II directors (Patrick J. Heron and Edward T. Mathers) to serve three-year terms ending at the 2029 annual meeting.

  2. 2

    Ratification of the Appointment of Ernst & Young LLP as Independent Registered Public Accounting Firm for the Fiscal Year Ending December 31, 2026

    ManagementBoard: FOR

    Ratify the Audit Committee’s appointment of Ernst & Young LLP as the company’s independent registered public accounting firm for the fiscal year ending December 31, 2026.

Director elections

Nominees on the ballot2

Independent
Tenure on this board
1.8 yrs
Also a director at
Mirum Pharmaceuticals Inc (MIRM)Arcutis Biotherapeutics Inc (ARQT)
Independent
Tenure on this board
1.8 yrs
Also a director at
Onkure Therapeutics Inc (OKUR)Trevi Therapeutics Inc (TRVI)Senti Biosciences Holdings Inc (SNTI)
Ownership

Top institutional holders10

Latest 13F quarter
1Frazier Life Sciences Management, L.P.14.0%6,652,013$199M
2ORBIMED ADVISORS LLCActivist7.6%3,637,887$109M
3NEA Management Company, LLC7.6%3,614,486$108M
4FMR LLC6.0%2,844,326$85M
5Deep Track Capital, LP5.8%2,757,569$82M
6WELLINGTON MANAGEMENT GROUP LLP5.6%2,664,927$80M
7NVP Associates, LLC4.5%2,136,335$64M
8Polar Capital Holdings Plc3.4%1,622,186$48M
9BRAIDWELL LP3.1%1,492,467$45M
10VANGUARD CAPITAL MANAGEMENT LLC3.1%1,477,592$44M
Filings

Recent key filings

Periodic reports
Definitive proxies
Reference

Frequently asked questions

When is the Mbx Biosciences Inc 2026 annual meeting?
Mbx Biosciences Inc (MBX) holds its 2026 annual shareholder meeting on Thursday, June 4, 2026.
What is the record date for the Mbx Biosciences Inc 2026 meeting?
The record date for the Mbx Biosciences Inc 2026 meeting is Friday, April 10, 2026. Shareholders of record on or before that date are eligible to vote.
Who are the director nominees for Mbx Biosciences Inc's 2026 meeting?
The board is presenting 2 director nominees at the Mbx Biosciences Inc 2026 meeting, listed with their independence status and background.
What proposals will shareholders vote on at the Mbx Biosciences Inc 2026 meeting?
Shareholders will vote on 2 proposals at the Mbx Biosciences Inc 2026 meeting, each tagged with who proposed it and the board's recommendation.
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