MBX Biosciences, Inc. (MBX) insider buying and selling
There were no open-market insider purchases or sales at MBX Biosciences, Inc. (MBX) in the last 90 days. Over the last 12 months, 1 insider bought $526K of the stock, led by P. Kent Hawryluk (CEO), who bought $526K on Mar 13, 2026; 2 insiders sold $25K, of which $25K was scheduled or tax-related.
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Unlock MBXRecent open-market insider trades
Trades by the same insider within a week are shown as one line.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| P. Kent Hawryluk CEO | Open market purchase | 18,500 | $28.41 | $526K |
Scheduled and tax-related sales
Sales made under a pre-arranged 10b5-1 plan or to cover tax on vesting shares. They are listed separately because they are not a fresh decision to sell.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| P. Kent Hawryluk CEO | Sell to cover | 607 | $29.54 | $18K | |
| Salomon Azoulay Chief Medical Officer | Sell to cover | 231 | $29.54 | $7K |
What the MBX insider trades really mean
The table above is the public summary. With an Insider Intel account you get the analysis behind it, for MBX Biosciences, Inc. and every other stock we track:
MBX's AI Signal score
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Questions about MBX insider trading
Who bought MBX Biosciences, Inc. (MBX) stock recently?
Insiders who bought MBX Biosciences, Inc. stock on the open market in the last 12 months: P. Kent Hawryluk ($526K). The most recent purchase was reported on Mar 13, 2026.
Are insiders buying or selling MBX?
Over the last 12 months insiders were net buyers of MBX on discretionary trades: $526K bought against $0 sold (scheduled and tax-related sales excluded).
What is a sell-to-cover or 10b5-1 sale?
A 10b5-1 sale is scheduled in advance under a pre-arranged plan, and a sell-to-cover sale is made to pay tax on vesting shares. Neither is a fresh decision to sell, so they say less about an insider's view than a discretionary sale.
Where does this data come from?
Officers, directors and large shareholders report their trades to the SEC on Form 4. This page lists the open-market purchases and sales by individual insiders from those public filings; funds and other institutions are not shown.
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How to read this page
Officers, directors and large shareholders must report their trades in company shares to the SEC on Form 4. This page lists open-market purchases and sales by individual insiders: trades made on the stock exchange at the going price. Funds and other institutions are not shown here.
Information from SEC EDGAR Form 4 filings, shown for general information only. It is not financial advice and does not recommend buying or selling any security. Trades are shown by transaction date and may be reported up to two business days later.