Updated Jul 16, 2026
HSIEH Wen Hsuan has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $7.62M.

| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-10 | AMBQ | Ambiq Micro, Inc. | A — Grant or award | 5.0K | $0.00 | |
| 2026-03-13 | AMPX | Amprius Technologies, Inc. | S — Open-market sale | 130.6K | $18.22 | $2.38M |
| 2026-03-13 | AMPX | Amprius Technologies, Inc. | S — Open-market sale | 282.5K | $18.55 | $5.24M |
| 2026-03-13 | AMPX | Amprius Technologies, Inc. | M — Option exercise | 270.3K | $2.61 | $705K |
| 2026-02-20 | AMBQ | Ambiq Micro, Inc. | M — Option exercise | 238.9K | $12.60 | $3.01M |
| 2025-07-31 | AMBQ | Ambiq Micro, Inc. | J — Other acquisition / disposition | 395.0K | — |
HSIEH Wen Hsuan is a corporate insider — currently tracked as Insider of Ambiq Micro, Inc. (AMBQ). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($7.62M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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