Senior insider sale
President and COO at AMBIQ MICRO, INC. — senior position signals high conviction
$5.79M
89.01K shares
What this filing means
CHEN SEAN CHIHHSIANG plans to sell 89.01K shares of AMBIQ MICRO, INC. valued at approximately $5.79M. 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: 10/5/2026ACC: 0001950047-26-010053
Officer· President and COO
Since Mar 2026
89.01K
Shares to sell
$5.79M
Approx. market value
53.20K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months2
Exercise of Stock Options
Cash
10/5/2026
45KRestricted Stock Units
N/A
10/1/2026
8.21KTotal acquired53.20K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
10/5/2026 | Exercise of Stock Options Cash | 45K | — |
10/1/2026 | Restricted Stock Units N/A | 8.21K | — |
| Total | 53.20K | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
5.80K
Market value
$403.8K
10/2/2026
—Completed
Units to sell
15K
Market value
$902.1K
9/14/2026
—Completed
Units to sell
15K
Market value
$857.6K
9/4/2026
Planned — Approximate Date
NYSEPlanned
Units to sell
53.20K
Market value
$3.63M
10/5/2026
Total
Units
89.01K
Value
$5.79M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
10/2/2026 | 5.80K | $403.8K | — | Completed |
9/14/2026 | 15K | $902.1K | — | Completed |
9/4/2026 | 15K | $857.6K | — | Completed |
| Planned — Approximate Date | ||||
10/5/2026 | 53.20K | $3.63M | NYSE | Planned |
| Total | 89.01K | $5.79M | ||