Senior insider sale
Chief Financial Officer at MBX BIOSCIENCES, INC. — senior position signals high conviction
$330.7K
11.06K shares
What this filing means
BARTRAM RICHARD plans to sell 11.06K shares of MBX BIOSCIENCES, INC. valued at approximately $330.7K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 3/25/2026ACC: 0001959173-26-002613
Officer· Chief Financial Officer
Since Feb 2026
11.06K
Shares to sell
$330.7K
Approx. market value
1.06K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
Restricted Stock Vesting
Compensation
3/23/2026
1.06KTotal acquired1.06K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
3/23/2026 | Restricted Stock Vesting Compensation | 1.06K | — |
| Total | 1.06K | ||
Planned & Completed Dispositions2
Completed
—Completed
Units to sell
10K
Market value
$300.5K
3/16/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
1.06K
Market value
$30.2K
3/25/2026
Total
Units
11.06K
Value
$330.7K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
3/16/2026 | 10K | $300.5K | — | Completed |
| Planned — Approximate Date | ||||
3/25/2026 | 1.06K | $30.2K | NASDAQ | Planned |
| Total | 11.06K | $330.7K | ||