Heron Patrick J's Form 4 filing
MBX Biosciences, Inc. (MBX) · filed Sep 30, 2025
- Accession no.
- 0001231919-25-000267
- Filed
- Sep 30, 2025, 4:59 PM ET
- Trade date
- Sep 26, 2025
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Not checked
This filing lists 1 non-derivative transaction. Open-market purchases total $12.0M. It was filed 4 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Heron Patrick JCIK 0001365617 | Director, 10% Owner |
| Topper James NCIK 0001341382 | 10% Owner |
| FHMLS X, L.L.C.CIK 0001790811 | 10% Owner |
| Frazier Life Sciences X, L.P.CIK 0001790879 | 10% Owner |
| FHMLS X, L.P.CIK 0001790880 | 10% Owner |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 26, 2025 | Common Stock | PPurchaseAcquired | +666,666 | $18.00 | +$11,999,988 | 5,219,440 | Indirect |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
No transaction price on this filing refers to a footnote.