MBX Biosciences, Inc. (MBX) Insider Trading -- Recent Executive & Director Transactions

11 insiders reported 24 Form 4 transactions for MBX Biosciences, Inc. (MBX) over the past 18 months (most recent 2026-08-05). Recent activity: Azoulay Salomon (Chief Medical Officer) Sell 370 shares, Hoerter Steven L. (President and CEO) Buy 71,000 shares, Smither John W (Chief Financial Officer) Buy 28,000 shares, Azoulay Salomon (Chief Medical Officer) Buy 55,000 shares, Azoulay Salomon (Chief Medical Officer) Sell 55,000 shares. Source: SEC Form 4.

DateInsiderTitleTypeSharesValue
2026-08-05Azoulay SalomonChief Medical OfficerSell370$24,335
2026-08-04Hoerter Steven L.President and CEOBuy71,000$0
2026-08-04Smither John WChief Financial OfficerBuy28,000$0
2026-05-11Azoulay SalomonChief Medical OfficerBuy55,000$575,300
2026-05-11Azoulay SalomonChief Medical OfficerSell55,000$2.1M
2026-05-11Azoulay SalomonChief Medical OfficerBuy15,003$240,048
2026-05-11Azoulay SalomonChief Medical OfficerSell15,003$574,615
2026-05-08Hawryluk P. KentPresident & CEOSell607$17,931
2026-05-08Azoulay SalomonChief Medical OfficerSell231$6,824
2026-05-04Hoerter Steven L.DirectorBuy11,938$0
2026-03-16Hawryluk P. KentPresident & CEOBuy18,500$525,585
2026-02-27Hawryluk P. KentPresident & CEOBuy28,768$460,288
2026-02-03Bartram RichardChief Financial OfficerBuy15,000$0
2026-02-03Hawryluk P. KentPresident & CEOBuy35,250$0
2026-02-03Azoulay SalomonChief Medical OfficerBuy15,000$0
2025-10-28Hawryluk P. KentPresident & CEOBuy182,859$594,292
2025-10-21Hawryluk P. KentPresident & CEOBuy20,000$272,800
2025-10-20Hoerter Steven L.DirectorBuy20,000$265,000
2025-09-30Topper James NInsiderBuy666,666$12.0M
2025-09-30Heron Patrick JDirectorBuy666,666$12.0M
2025-09-30FHMLS X, L.L.C.InsiderBuy666,666$12.0M
2025-09-30Frazier Life Sciences X, L.P.InsiderBuy666,666$12.0M
2025-09-30FHMLS X, L.P.InsiderBuy666,666$12.0M
2025-04-10Pescovitz Ora H.DirectorBuy7,693$45,312

Source: SEC Form 4 filings · as of 2026-08-05