Insider holders · CIK 0001500412
Ambiq Micro, Inc. · AMBQ
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Wen Hsuan HsiehDirector | 4,957 | 633,920 | 638,877 | Jun 10, 2026 · 5:01 pm EDT | Form 4 |
| Fumihide EsakaChief Executive Officer | 460,460 | — | 460,460 | Sep 15, 2026 · 6:56 pm EDT | Form 4 |
| Scott McLean HansonChief Technology Officer | 221,226 | — | 221,226 | Sep 17, 2026 · 4:06 pm EDT | Form 4 |
| Sean Chihhsiang ChenPresident and COO | 120,275 | — | 120,275 | Sep 15, 2026 · 6:57 pm EDT | Form 4 |
| Jeffrey G WinzelerChief Financial Officer | 106,299 | — | 106,299 | Jun 4, 2026 · 5:01 pm EDT | Form 4 |
| Joseph A TautgesDirector | 53,703 | — | 53,703 | Jun 10, 2026 · 4:43 pm EDT | Form 4 |
| Timothy ChenDirector | 52,575 | — | 52,575 | Jun 10, 2026 · 4:46 pm EDT | Form 4 |
| Ker ZhangDirector | 20,366 | — | 20,366 | Sep 15, 2026 · 6:58 pm EDT | Form 4 |
| Bernard Bennett BanksDirector | 4,957 | — | 4,957 | Jun 10, 2026 · 4:45 pm EDT | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.