Transaction #12481 · Form 4 · 0001193125-25-294675
MBX Biosciences, Inc. · Stock award · Stock option (right to buy)
MBX Biosciences, Inc. · Transacted November 22, 2025 · Filed November 25, 2025
What does this filing report?
An SEC Form 4 filing for MBX Biosciences, Inc. records a stock award involving Stock option (right to buy) on November 22, 2025. The reported quantity was 8,000. The filing date is November 25, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.
The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.
Transaction details
- Company
- MBX Biosciences, Inc.
- Company CIK
- 0001776111
- Security type
- Derivative
- Acquisition type
- Stock award · Code A
- Quantity acquired
- 8,000
- Reported price
- 0
- Reference value
- 0
- Currency
- Currency not specified
- Ownership
- Direct
- Holdings after transaction
- 8,000
- Ownership description
- Not reported
- SEC acceptance time
- Nov 25, 2025, 8:50 AM EST
- 10b5-1 indication
- Not indicated
Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.
Reporting owners
- Hoerter Steven L. ↗
Director
CIK 0001533451
These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.
Company listings
This transaction is not mapped to a specific company listing.
Derivative terms
- Underlying security
- Common Stock
- Underlying quantity
- 8,000
- Conversion / exercise price
- 27.08
- Exercise date
- Not reported
- Expiration date
- November 21, 2035
Filing footnotes & remarks
- F1
- The grant will vest in equal monthly installments over a one-year period from November 6, 2025, subject to the non-employee director's continued services to the Company.
Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.
This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.