Sean Chihhsiang Chen, President and COO at Ambiq Micro, Inc. (AMBQ), sold 55,685 shares at $70.53 ($3.9M) on 2026-05-15, disclosed to the SEC on 2026-05-18.
Open-market sale of $3.9M AMBQ by President and COO. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $70.53 | 32,351 | $2.3M | 57.8% |
| 2 | $71.37 | 23,334 | $1.7M | 42.2% |
| Total | $70.89 avg | 55,685 | $3.9M | 100% |
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