CIK 0001500412 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company
Ambiq Micro, Inc.
Sign in to watch- Ticker
- AMBQ
- Exchange
- NYSE
- Industry
- Semiconductors & Related Devices
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 271911389
- Phone
- (512) 879-2850
- Business address
- 6500 RIVER PLACE BOULEVARD, BUILDING 7, SUITE 200, AUSTIN, TX, 78730
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $22,056,167
- in 17 filings, $16.0M under 10b5-1 plans
Net −$22,056,167. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- Esaka Fumihide −$12.4M Chief Executive Officer sold 32% of stake
- Hanson Scott McLean −$5.1M Chief Technology Officer sold 28% of stake
- Chen Sean Chihhsiang −$3.5M President and COO sold 36% of stake
- ZHANG KER −$645K Director sold 33% of stake
- Winzeler Jeffrey G −$380K Chief Financial Officer sold 5% of stake
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Option exercise 10b5-1 | +5,000 | $8.12 | $41K | 448,900 |
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −500 | $49.13 | $25K | 448,400 |
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −500 | $50.02 | $25K | 447,900 |
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −2,800 | $51.15 | $143K | 445,100 |
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −1,200 | $51.85 | $62K | 443,900 |
| 2026-10-15 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −5,000 | 53,507 | ||
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Option exercise 10b5-1 | +7,000 | $8.12 | $57K | 219,546 |
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −600 | $49.06 | $29K | 218,946 |
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −900 | $50.08 | $45K | 218,046 |
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −3,700 | $51.12 | $189K | 214,346 |
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −1,800 | $51.86 | $93K | 212,546 |
| 2026-10-15 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −7,000 | 38,279 | ||
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Option exercise 10b5-1 | +15,000 | $8.12 | $122K | 121,268 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −7,539 | $50.13 | $378K | 113,729 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −1,261 | $51.53 | $65K | 112,468 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −2,000 | $52.47 | $105K | 110,468 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −4,000 | $53.44 | $214K | 106,468 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −200 | $54.27 | $11K | 106,268 |
| 2026-10-14 | Chen Sean Chihhsiang President and COO | Option exercise · Stock Option (Right to Buy) 10b5-1 | −15,000 | 119,423 | ||
| 2026-10-05 | Chen Sean Chihhsiang President and COO | Sale 10b5-1 | −5,508 | $66.38 | $366K | 108,965 |
Page 1 of 9 · 176 trades