Sean Chihhsiang Chen, President and COO at Ambiq Micro, Inc. (AMBQ), sold 15,000 shares at $59.36 ($902K) on 2026-09-14, disclosed to the SEC on 2026-09-15.
Scheduled sale ($902k) 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 | $59.36 | 2,600 | $154K | 17.1% |
| 2 | $60.24 | 11,000 | $663K | 73.5% |
| 3 | $60.83 | 1,400 | $85K | 9.4% |
| Total | $60.14 avg | 15,000 | $902K | 100% |
| Filing → |
| AMBQ | SELL | 2026-09-09 | $858K | — | Filing → |
| AMBQ | SELL | 2026-05-18 | $3.9M | — | Filing → |