Topper James N 4
4 · MBX Biosciences, Inc. · Filed Sep 30, 2025
Insider Transaction Report
Form 4
Heron Patrick J
Director10% Owner
Transactions
- Purchase
Common Stock
2025-09-26$18.00/sh+666,666$11,999,988→ 5,219,440 total(indirect: By Frazier Life Sciences X, L.P.)
Footnotes (1)
- [F1]The shares reported herein are held of record by Frazier Life Sciences X, L.P. FHMLS X, L.P. is the general partner of Frazier Life Sciences X, L.P. and FHMLS X, L.L.C. is the general partner of FHMLS X, L.P. James N. Topper and Patrick J. Heron are the sole managing members of FHMLS X, L.L.C. and share voting and investment power over the shares held by Frazier Life Sciences X, L.P. Dr. Topper and Mr. Heron disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.