MBX Biosciences Insider Trades
NASDAQ: MBXHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Last 12 months
- Purchases
- 3 · $1.06M
- Sales
- 5 · $2.73M
- Shares bought / sold
- 58.50K / 71.21K
- Net activity
- Net selling $1.7 million
MBX Biosciences insider activity
Over the last 12 months, MBX Biosciences insiders reported 18 transactions on SEC Form 4: 3 open-market purchases and 5 sales. Insiders bought $1.1 million and sold $2.7 million worth of stock, for net insider selling of $1.7 million. The largest seller was Azoulay Salomon, with $2.7 million in reported sales.
The most recent filing shows Azoulay Salomon (Chief Medical Officer) selling 370 shares at $65.77 on Aug 4, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put MBX's ownership changes in context.
Summary generated from market data by MetaCap's automated system. Methodology
MBX insider transactions
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Aug 4, 2026 | Azoulay SalomonChief Medical Officer | Sale | 370 | $24.33K | Form 4 |
| Aug 3, 2026 | Hoerter Steven L.President and CEO | Award | 71,000 | — | Form 4 |
| Aug 3, 2026 | Smither John WChief Financial Officer | Award | 28,000 | — | Form 4 |
| May 8, 2026 | Azoulay SalomonChief Medical Officer | Sale | 15,003 | $574.61K | Form 4 |
| May 8, 2026 | Azoulay SalomonChief Medical Officer | Option exercise | 15,003 | $240.05K | Form 4 |
| May 8, 2026 | Azoulay SalomonChief Medical Officer | Sale | 55,000 | $2.11M | Form 4 |
| May 8, 2026 | Azoulay SalomonChief Medical Officer | Option exercise | 55,000 | $575.30K | Form 4 |
| May 6, 2026 | Hawryluk P. KentPresident & CEO | Sale | 607 | $17.93K | Form 4 |
| May 6, 2026 | Azoulay SalomonChief Medical Officer | Sale | 231 | $6.82K | Form 4 |
| May 1, 2026 | Hoerter Steven L.Director | Award | 11,938 | — | Form 4 |
| Mar 13, 2026 | Hawryluk P. KentPresident & CEO | Buy | 18,500 | $525.66K | Form 4 |
| Feb 26, 2026 | Hawryluk P. KentPresident & CEO | Option exercise | 28,768 | $460.29K | Form 4 |
| Feb 2, 2026 | Hawryluk P. KentPresident & CEO | Award | 35,250 | — | Form 4 |
| Feb 2, 2026 | Bartram RichardChief Financial Officer | Award | 15,000 | — | Form 4 |
| Feb 2, 2026 | Azoulay SalomonChief Medical Officer | Award | 15,000 | — | Form 4 |
| Oct 24, 2025 | Hawryluk P. KentPresident & CEO | Option exercise | 182,859 | $594.29K | Form 4 |
| Oct 20, 2025 | Hawryluk P. KentPresident & CEO | Buy | 20,000 | $272.79K | Form 4 |
| Oct 17, 2025 | Hoerter Steven L.Director | Buy | 20,000 | $264.98K | Form 4 |
| Sep 26, 2025 | Heron Patrick J & FHMLS X, L.P. & FHMLS X, L.L.C. & Topper James N & Frazier Life Sciences X, L.P.Director | Buy | 666,666 | $12.00M | Form 4 |
| Apr 8, 2025 | Pescovitz Ora H.Director | Buy | 7,693 | $45.31K | Form 4 |
| Feb 18, 2025 | ORBIMED ADVISORS LLC & OrbiMed Capital GP VII LLC & OrbiMed Genesis GP LLCDirector | Buy | 94,100 | $1.02M | Form 4 |
| Feb 18, 2025 | ORBIMED ADVISORS LLC & OrbiMed Capital GP VII LLC & OrbiMed Genesis GP LLCDirector | Buy | 49,070 | $531.92K | Form 4 |
| Feb 18, 2025 | GORDON CARL LDirector | Buy | 94,100 | $1.02M | Form 4 |
| Feb 18, 2025 | GORDON CARL LDirector | Buy | 49,070 | $531.92K | Form 4 |
| Feb 14, 2025 | ORBIMED ADVISORS LLC & OrbiMed Capital GP VII LLC & OrbiMed Genesis GP LLCDirector | Buy | 29,540 | $290.97K | Form 4 |
| Feb 14, 2025 | ORBIMED ADVISORS LLC & OrbiMed Capital GP VII LLC & OrbiMed Genesis GP LLCDirector | Buy | 17,962 | $177.82K | Form 4 |
| Feb 14, 2025 | GORDON CARL LDirector | Buy | 29,540 | $290.97K | Form 4 |
| Feb 14, 2025 | GORDON CARL LDirector | Buy | 17,962 | $177.82K | Form 4 |
Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4