MBX Biosciences Inc.

Last updated September 27, 2026

Organization details

Legal name
MBX Biosciences Inc.
Ownership
Public
Status
Active
SIC code
2834 — Pharmaceutical Preparations
Jurisdiction of incorporation
Delaware
Headquarters city
Carmel
Headquarters state / province
Indiana
Headquarters country
United States
Fiscal year end
December
Ticker symbol
MBX
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001776111

Board of directors

Chief executives

Steven L. Hoerter · President and CEO
Dates unknown
P. Kent Hawryluk · President & CEO
Since September 2024

Director election results

Annual meeting of June 4, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

6 of this board's directors also sit on 20 other boards.

Network of MBX Biosciences Inc.'s board connections Adicet Bio Inc. Adicet Bio Inc. Arcutis Biotherapeutics Inc. Arcutis Biotherapeutic... ArriVent BioPharma Inc. ArriVent BioPharma Inc... BlossomHill Therapeutics Inc. BlossomHill Therapeuti... C4 Therapeutics Inc. C4 Therapeutics Inc. Compass Therapeutics Inc. Compass Therapeutics I... Electra Therapeutics Inc. Electra Therapeutics I... Keros Therapeutics Inc. Keros Therapeutics Inc... Mirum Pharmaceuticals Inc. Mirum Pharmaceuticals... OnKure Therapeutics Inc. OnKure Therapeutics In... Oric Pharmaceuticals Inc. Oric Pharmaceuticals I... PMV Pharmaceuticals Inc. PMV Pharmaceuticals In... Rhythm Pharmaceuticals Inc. Rhythm Pharmaceuticals... Scribe Therapeutics Inc. Scribe Therapeutics In... Senti Biosciences Holdings Inc. Senti Biosciences Hold... Sionna Therapeutics Inc. Sionna Therapeutics In... Carl L. Gordon Carl L. Gordon Edward T. Mathers Edward T. Mathers Laurie Stelzer Laurie Stelzer Patrick J. Heron Patrick J. Heron Steven L. Hoerter Steven L. Hoerter MBX Biosciences Inc.
Shared director Other board Same sector +4 more in the list below

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$1,063,385
3 purchases by 2 insiders
Sold, last 12 months
$2,734,604
5 sales by 2 insiders
Date Insider Transaction Shares Price Value
Aug 4, 2026 Azoulay Salomon Officer (Chief Medical Officer) Open-market sale −370 $65.77 $24,335
Aug 3, 2026 Steven L. Hoerter Director, Officer (President and CEO) Grant or award +71,000 — —
Aug 3, 2026 John W. Smither Officer (Chief Financial Officer) Grant or award +28,000 — —
May 8, 2026 Azoulay Salomon Officer (Chief Medical Officer) Option exercise +55,000 $10.46 $575,300
May 8, 2026 Azoulay Salomon Officer (Chief Medical Officer) Open-market sale −55,000 $38.38 $2,110,900
May 8, 2026 Azoulay Salomon Officer (Chief Medical Officer) Option exercise +15,003 $16.00 $240,048
May 8, 2026 Azoulay Salomon Officer (Chief Medical Officer) Open-market sale −15,003 $38.30 $574,615
May 6, 2026 Azoulay Salomon Officer (Chief Medical Officer) Open-market sale −231 $29.54 $6,824
May 6, 2026 P. Kent Hawryluk Director, Officer (President & CEO) Open-market sale −607 $29.54 $17,931
May 1, 2026 Steven L. Hoerter Director Grant or award +11,938 — —
Mar 13, 2026 P. Kent Hawryluk Director, Officer (President & CEO) Open-market purchase +18,500 $28.41 $525,585
Feb 26, 2026 P. Kent Hawryluk Director, Officer (President & CEO) Option exercise +28,768 $16.00 $460,288
Feb 2, 2026 Azoulay Salomon Officer (Chief Medical Officer) Grant or award +15,000 — —
Feb 2, 2026 Bartram Richard Officer (Chief Financial Officer) Grant or award +15,000 — —
Feb 2, 2026 P. Kent Hawryluk Director, Officer (President & CEO) Grant or award +35,250 — —

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