AMBQ Ambiq Micro, Inc.
NYSE · SEC CIK 1500412 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $34.46M 18 sales by 8 insiders
- Filings on record
- 47 since 2025-07-31, latest 2026-09-17 16:06
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Esaka Fumihide | CEO, Dir | — | $15.22M |
| Chen Sean Chihhsiang | Pres, COO | — | $5.71M |
| Chen Timothy | Dir | — | $5.63M |
| Hanson Scott McLean | CTO, Dir | — | $5.17M |
| Winzeler Jeffrey G | CFO | — | $1.82M |
| ZHANG KER | Dir | — | $644.9K |
| TAUTGES JOSEPH A | Dir | — | $241.8K |
| Connors Michele Kim | GC | — | $21.2K |
| Banks Bernard Bennett | Dir | — | — |
| HSIEH Wen Hsuan | Dir | — | — |
Transactions 60
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-09-17 16:06 | 2026-09-15 | AMBQ | Hanson Scott McLean | CTO, Dir | M - OptEx | $8.12 | +7,000 | 228.2K | +3% | +$56.8K |
| DMT | 2026-09-17 16:06 | 2026-09-15 | AMBQ | Hanson Scott McLean | CTO, Dir | S - Sale+OE | $60.28 | -7,000 | 221.2K | -3% | -$421.9K |
| M | 2026-09-15 18:58 | 2026-09-11 | AMBQ | ZHANG KER | Dir | S - Sale | $63.44 | -10.0K | 20.4K | -33% | -$634.4K |
| DT | 2026-09-15 18:57 | 2026-09-14 | AMBQ | Chen Sean Chihhsiang | Pres, COO | M - OptEx | $8.12 | +15.0K | 135.3K | +12% | +$121.8K |
| DMT | 2026-09-15 18:57 | 2026-09-14 | AMBQ | Chen Sean Chihhsiang | Pres, COO | S - Sale+OE | $60.14 | -15.0K | 120.3K | -11% | -$902.1K |
| DMT | 2026-09-15 18:56 | 2026-09-11+ | AMBQ | Esaka Fumihide | CEO, Dir | M - OptEx | $11.65 | +63.5K | 474.0K | +15% | +$739.6K |
| DMT | 2026-09-15 18:56 | 2026-09-11+ | AMBQ | Esaka Fumihide | CEO, Dir | S - Sale+OE | $62.70 | -63.5K | 460.5K | -12% | -$3.98M |
| DT | 2026-09-09 17:10 | 2026-09-04 | AMBQ | Chen Sean Chihhsiang | Pres, COO | M - OptEx | $8.12 | +15.0K | 135.3K | +12% | +$121.8K |
| DMT | 2026-09-09 17:10 | 2026-09-04 | AMBQ | Chen Sean Chihhsiang | Pres, COO | S - Sale+OE | $57.17 | -15.0K | 120.3K | -11% | -$857.6K |
| D | 2026-09-09 17:08 | 2026-09-04 | AMBQ | ZHANG KER | Dir | M - OptEx | $5.88 | +1,785 | 30.6K | +6% | +$10.5K |
| D | 2026-09-09 17:08 | 2026-09-04 | AMBQ | ZHANG KER | Dir | S - Sale+OE | $56.92 | -185 | 30.4K | -0.6% | -$10.5K |
| DMT | 2026-09-02 16:47 | 2026-08-31+ | AMBQ | Esaka Fumihide | CEO, Dir | M - OptEx | $12.09 | +117.8K | 471.5K | +33% | +$1.42M |
| DMT | 2026-09-02 16:47 | 2026-08-31+ | AMBQ | Esaka Fumihide | CEO, Dir | S - Sale+OE | $56.89 | -108.5K | 460.5K | -19% | -$6.17M |
| DM | 2026-08-28 17:19 | 2026-08-26+ | AMBQ | Hanson Scott McLean | CTO, Dir | M - OptEx | $8.12 | +65.0K | 248.7K | +35% | +$527.8K |
| DM | 2026-08-28 17:19 | 2026-08-26+ | AMBQ | Hanson Scott McLean | CTO, Dir | S - Sale+OE | $59.69 | -55.0K | 221.2K | -20% | -$3.28M |
| DT | 2026-08-18 16:40 | 2026-08-14 | AMBQ | Hanson Scott McLean | CTO, Dir | M - OptEx | $8.12 | +7,000 | 218.2K | +3% | +$56.8K |
| DMT | 2026-08-18 16:40 | 2026-08-14 | AMBQ | Hanson Scott McLean | CTO, Dir | S - Sale+OE | $64.38 | -7,000 | 211.2K | -3% | -$450.6K |
| DT | 2026-08-18 16:30 | 2026-08-14 | AMBQ | Esaka Fumihide | CEO, Dir | M - OptEx | $8.12 | +13.5K | 464.7K | +3% | +$109.6K |
| DMT | 2026-08-18 16:30 | 2026-08-14 | AMBQ | Esaka Fumihide | CEO, Dir | S - Sale+OE | $64.39 | -13.5K | 451.2K | -3% | -$869.2K |
| 2026-06-10 17:01 | 2026-06-08 | AMBQ | HSIEH Wen Hsuan | Dir | A - Grant | $0.00 | +4,957 | 4,957 | New | $0 | |
| 2026-06-10 16:46 | 2026-06-08 | AMBQ | Chen Timothy | Dir | A - Grant | $0.00 | +4,957 | 52.6K | +10% | $0 | |
| 2026-06-10 16:45 | 2026-06-08 | AMBQ | Banks Bernard Bennett | Dir | A - Grant | $0.00 | +4,957 | 4,957 | New | $0 | |
| 2026-06-10 16:43 | 2026-06-08 | AMBQ | TAUTGES JOSEPH A | Dir | A - Grant | $0.00 | +4,957 | 53.7K | +10% | $0 | |
| 2026-06-10 16:42 | 2026-06-08 | AMBQ | ZHANG KER | Dir | A - Grant | $0.00 | +4,957 | 28.8K | +21% | $0 | |
| D | 2026-06-04 17:01 | 2026-06-02 | AMBQ | Winzeler Jeffrey G | CFO | M - OptEx | $16.80 | +5,952 | 106.3K | +6% | +$100.0K |
| MI | 2026-05-29 19:51 | 2026-05-27 | AMBQ | Chen Timothy | Dir | S - Sale | $79.79 | -70.6K | 0 | -100% | -$5.63M |
| DAI | 2026-05-29 19:49 | 2025-07-31 | AMBQ | Chen Timothy | Dir | C - Cnv Deriv | — | +70.6K | 70.6K | New | — |
| DM | 2026-05-18 18:12 | 2026-05-14+ | AMBQ | Winzeler Jeffrey G | CFO | M - OptEx | $16.80 | +32.0K | 100.3K | +47% | +$536.8K |
| DM | 2026-05-18 18:12 | 2026-05-14 | AMBQ | Winzeler Jeffrey G | CFO | S - Sale+OE | $69.90 | -26.0K | 94.4K | -22% | -$1.82M |
| DM | 2026-05-18 17:59 | 2026-05-14+ | AMBQ | Hanson Scott McLean | CTO, Dir | M - OptEx | $8.12 | +18.3K | 211.2K | +9% | +$148.6K |
| DM | 2026-05-18 17:59 | 2026-05-14 | AMBQ | Hanson Scott McLean | CTO, Dir | S - Sale+OE | $69.24 | -10.2K | 203.1K | -5% | -$706.3K |
| D | 2026-05-18 17:48 | 2026-05-15 | AMBQ | Chen Sean Chihhsiang | Pres, COO | M - OptEx | $5.88 | +55.7K | 176.0K | +46% | +$327.4K |
| DM | 2026-05-18 17:48 | 2026-05-15 | AMBQ | Chen Sean Chihhsiang | Pres, COO | S - Sale+OE | $70.89 | -55.7K | 120.3K | -32% | -$3.95M |
| DM | 2026-05-18 17:44 | 2026-05-14+ | AMBQ | Esaka Fumihide | CEO, Dir | M - OptEx | $8.66 | +120.0K | 451.2K | +36% | +$1.04M |
| D | 2026-05-18 17:44 | 2026-05-14 | AMBQ | Esaka Fumihide | CEO, Dir | S - Sale+OE | $70.02 | -60.0K | 391.2K | -13% | -$4.20M |
| M | 2026-04-06 17:01 | 2026-04-02 | AMBQ | Connors Michele Kim | GC | S - Sale | $26.15 | -811 | 60.6K | -1% | -$21.2K |
| A | 2026-04-02 16:36 | 2026-03-06 | AMBQ | Winzeler Jeffrey G | CFO | A - Grant | $0.00 | +41.7K | 94.4K | +79% | $0 |
| A | 2026-04-02 16:35 | 2026-03-06 | AMBQ | Chen Sean Chihhsiang | Pres, COO | A - Grant | $0.00 | +64.2K | 120.3K | +115% | $0 |
| A | 2026-04-02 16:35 | 2026-03-06 | AMBQ | Hanson Scott McLean | CTO, Dir | A - Grant | $0.00 | +80.3K | 203.1K | +65% | $0 |
| A | 2026-04-02 16:34 | 2026-03-06 | AMBQ | Esaka Fumihide | CEO, Dir | A - Grant | $0.00 | +160.6K | 391.2K | +70% | $0 |
| A | 2026-04-02 16:32 | 2026-03-06 | AMBQ | Connors Michele Kim | GC | A - Grant | $0.00 | +32.1K | 61.4K | +110% | $0 |
| 2026-03-10 | 2026-03-06 | AMBQ | Chen Sean Chihhsiang | Pres, COO | A - Grant | $0.00 | +64.2K | 120.3K | +115% | $0 | |
| 2026-03-10 | 2026-03-06 | AMBQ | Winzeler Jeffrey G | CFO | A - Grant | $0.00 | +41.7K | 94.4K | +79% | $0 | |
| 2026-03-10 | 2026-03-06 | AMBQ | Connors Michele Kim | GC | A - Grant | $0.00 | +32.1K | 61.4K | +110% | $0 | |
| 2026-03-10 | 2026-03-06 | AMBQ | Hanson Scott McLean | CTO, Dir | A - Grant | $0.00 | +80.3K | 203.1K | +65% | $0 | |
| 2026-03-10 | 2026-03-06 | AMBQ | Esaka Fumihide | CEO, Dir | A - Grant | $0.00 | +160.6K | 391.2K | +70% | $0 | |
| DI | 2026-02-20 | 2026-02-18 | AMBQ | HSIEH Wen Hsuan | Dir | M - OptEx | $12.60 | +238.9K | 633.9K | +60% | +$3.01M |
| D | 2026-02-10 | 2025-10-07 | AMBQ | Esaka Fumihide | CEO, Dir | M - OptEx | $5.88 | +53.7K | 230.6K | +30% | +$315.5K |
| 2026-01-28 | 2026-01-26 | AMBQ | Hanson Scott McLean | CTO, Dir | S - Sale | $31.00 | -10.0K | 122.8K | -8% | -$310.0K | |
| 2026-01-28 | 2026-01-26 | AMBQ | TAUTGES JOSEPH A | Dir | S - Sale | $31.00 | -7,800 | 48.7K | -14% | -$241.8K | |
| M | 2026-01-07 | 2026-01-05 | AMBQ | Connors Michele Kim | GC | A - Grant | $0.00 | +29.2K | 29.2K | New | $0 |
| 2025-10-06 | 2025-10-02 | AMBQ | Winzeler Jeffrey G | CFO | A - Grant | $0.00 | +52.7K | 52.7K | New | $0 | |
| 2025-10-06 | 2025-10-02 | AMBQ | Esaka Fumihide | CEO, Dir | A - Grant | $0.00 | +159.9K | 176.9K | +940% | $0 | |
| 2025-10-06 | 2025-10-02 | AMBQ | Hanson Scott McLean | CFO, Dir | A - Grant | $0.00 | +83.8K | 132.8K | +171% | $0 | |
| 2025-10-06 | 2025-10-02 | AMBQ | Chen Sean Chihhsiang | Pres, COO | A - Grant | $0.00 | +56.0K | 56.0K | New | $0 | |
| DI | 2025-07-31 | 2025-07-31 | AMBQ | HSIEH Wen Hsuan | Dir | C - Cnv Deriv | — | +395.0K | 395.0K | New | — |
| 2025-07-31 | 2025-07-29 | AMBQ | TAUTGES JOSEPH A | Dir | A - Grant | $0.00 | +56.5K | 56.5K | New | $0 | |
| 2025-07-31 | 2025-07-29 | AMBQ | ZHANG KER | Dir | A - Grant | $0.00 | +23.8K | 23.8K | New | $0 | |
| DMI | 2025-07-31 | 2025-07-31 | AMBQ | Kleiner Perkins Caufield & Byers XVI, LLC | 10% | C - Cnv Deriv | — | +1.06M | 1.29M | +464% | — |
| 2025-07-31 | 2025-07-29 | AMBQ | Chen Timothy | Dir | A - Grant | $0.00 | +47.6K | 47.6K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations