HERON PATRICK J purchased 14.6% of their position (666.67K shares) of MBX BIOSCIENCES, INC. on the open market
Open‑market purchase worth $12.00M — a moderate purchase. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 9/30/2025ACC: 0001231919-25-000267
Director10% Owner
Since Sep 2024
+666.67K
Net shares
Net buyer
$12.00M
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
666.67K acquired
Non-Derivative Transactions1
Common Stock
Indirect
Shares
+666.67K
Price / share
$18.00
Trade value
$12M
% of position
14.6%
9/26/2025
4.55M→5.22M
Total
Net shares
+666.67K
Net value
$12M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 9/26/2025 | P · Purchase | +666.67K | $18.00 | $12M | 14.6% | 4.55M | 5.22M |
| Total | +666.67K | $12M | ||||||
Derivative Transactions0
No derivative transactions reported