Bartram Richard bought MBX

February 2, 2026 · Form 4 insider transaction

Bartram Richard bought 70,000 shares of MBX Biosciences, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Acquired (buy-side)
Shares
70,000
Price
$0.00
Total value
N/A
RoleOfficer
SecurityStock option (right to buy)
Transaction codeA: Grant or award
Transaction dateFebruary 2, 2026
Filing dateFebruary 3, 2026
Shares owned after70,000
OwnershipDirect
10b5-1 planNo
AmendedNo

Footnotes

The shares underlying this option vest and become exercisable in forty eight (48) equal monthly installments, beginning on March 2, 2026, subject to the Reporting Person's continued service on such vesting date.

View the original Form 4 on SEC EDGAR