MBXHealthcareSmall-Cap
MBX Biosciences, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for MBX Biosciences, Inc. (MBX), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are MBX insiders buying or selling?
MBX Biosciences, Inc. insiders reported 23 open-market buys ($153.7M) and 3 sells ($2.7M) across 26 Form 4 filings — a net buying position of $151.0M.
Source: SEC EDGAR Form 4
Key Statistics (as of May 11, 2026)
Total Form 4 filings
26
SEC EDGAR
Insider filers
19
Insider buys (23)
$153.7M
Insider sells (3)
$2.7M
Insider sentiment
Net buyingNet insider flow of $151.0M in net buying.
Recent MBX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 11, 2026 | Salomon Azoulay | Chief Medical Officer | Sale | 70.0K | $38.36 | $2.7M |
| May 8, 2026 | Salomon Azoulay | Chief Medical Officer | Sale | 231 | $29.54 | $6.8K |
| May 8, 2026 | Hawryluk P. Kent | President & CEO | Sale | 607 | $29.54 | $17.9K |
| Mar 16, 2026 | Hawryluk P. Kent | President & CEO | Purchase | 18.5K | $28.41 | $525.7K |
| Oct 21, 2025 | Hawryluk P. Kent | President & CEO | Purchase | 20.0K | $13.64 | $272.8K |
| Oct 20, 2025 | Steven L. Hoerter | Director | Purchase | 20.0K | $13.25 | $265.0K |
| Sep 30, 2025 | Patrick J Heron | Director, 10% Owner | Purchase | 666.7K | $18.00 | $12.0M |
| Apr 10, 2025 | Ora H. Pescovitz | Director | Purchase | 7.7K | $5.89 | $45.3K |
| Feb 19, 2025 | Carl L Gordon | Director, 10% Owner | Purchase | 190.7K | $10.60 | $2.0M |
| Feb 19, 2025 | ORBIMED ADVISORS LLC | Director, 10% Owner | Purchase | 190.7K | $10.60 | $2.0M |
| Feb 5, 2025 | Hawryluk P. Kent | President & CEO | Purchase | 50.0K | $10.69 | $534.5K |
| Sep 18, 2024 | Edward T Mathers | Director, 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Forest Baskett | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Ali Behbahani | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Carmen Chang | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Anthony A. Florence Jr. | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Mohamad Makhzoumi | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Paul Edward Walker | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Rick Yang | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | Scott D Sandell | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | ORBIMED ADVISORS LLC | Director, 10% Owner | Purchase | 750.0K | $16.00 | $12.0M |
| Sep 18, 2024 | New Enterprise Associates 17, L.P. | 10% Owner | Purchase | 500.0K | $16.00 | $8.0M |
| Sep 18, 2024 | James N Topper | 10% Owner | Purchase | 625.0K | $16.00 | $10.0M |
| Sep 18, 2024 | Patrick J Heron | Director, 10% Owner | Purchase | 625.0K | $16.00 | $10.0M |
| Sep 18, 2024 | Tiba Aynechi | Director | Purchase | 750.0K | $16.00 | $12.0M |
Showing the 25 most recent of 26 Form 4 filings for MBX Biosciences, Inc..
Most active MBX insiders
- Hawryluk P. Kent4 filings
- Carl L Gordon2 filings
- ORBIMED ADVISORS LLC2 filings
- Patrick J Heron2 filings
- Salomon Azoulay2 filings
Ask anything about MBX insider activity
Use Trabud's AI agent to query MBX Biosciences, Inc.'s Form 4 history in plain English — "Show me MBX CEO purchases this year" or compare it against any other ticker.
Open the AI agentMBX insider trading FAQ
Are MBX Biosciences, Inc. insiders buying or selling?
Across 26 SEC Form 4 filings, MBX Biosciences, Inc. (MBX) insiders reported 23 open-market purchases totaling $153.7M and 3 sales totaling $2.7M. That is a net buying position of $151.0M.
How many insiders trade MBX stock?
19 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for MBX Biosciences, Inc.. The most recent filing was accepted on May 11, 2026.
Where does Trabud get MBX insider trading data?
All MBX insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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