Sean Chihhsiang Chen, President and COO at Ambiq Micro, Inc. (AMBQ), sold 15,000 shares at $50.13 ($772K) on 2026-10-14, disclosed to the SEC on 2026-10-16.
Scheduled sale ($772k) by President and COO under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $50.13 | 7,539 | $378K | 48.9% |
| 2 | $51.53 | 1,261 | $65K | 8.4% |
| 3 | $52.47 | 2,000 | $105K | 13.6% |
| 4 | $53.44 | 4,000 | $214K | 27.7% |
| 5 | $54.27 | 200 | $11K | 1.4% |
| Total | $51.50 avg | 15,000 |
| $772K |
| 100% |
| Filing → |
| AMBQ | SELL | 2026-09-09 | $858K | — | Filing → |
| AMBQ | SELL | 2026-05-18 | $3.9M | — | Filing → |