Richard Bartram - Sep 12, 2024 Form 3 Insider Report for MBX Biosciences, Inc. (MBX)

Role
Chief Financial Officer
Signature
/s/ Richard Bartram
Stock symbol
MBX
Transactions as of
Sep 12, 2024
Transactions value $
$0
Form type
3
Date filed
9/12/2024, 07:09 PM
Previous filing
Mar 16, 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding MBX Stock Option (right to buy) Sep 12, 2024 Common Stock 93.6K $3.01 Direct F1
holding MBX Stock Option (right to buy) Sep 12, 2024 Common Stock 52.8K $3.25 Direct F2
holding MBX Stock Option (right to buy) Sep 12, 2024 Common Stock 79.2K $7.82 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 25% of the shares underlying this option vested and became exercisable on April 20, 2023, with the remaining 75% vesting in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F2 25% of the shares underlying this option vested and became exercisable on November 7, 2023, with the remaining 75% vesting in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F3 1/48th of the shares underlying this option vest and become exercisable in substantially equal monthly installments on each monthly anniversary of August 15, 2023, subject to the Reporting Person's continued service on each such vesting date.

Remarks:

Exhibit 24 - Power of Attorney