CIK 0001500412 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company
Ambiq Micro, Inc.
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- 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
- $20,736,302
- in 15 filings, $14.7M under 10b5-1 plans
Net −$20,736,302. 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 −$11.6M Chief Executive Officer sold 30% of stake
- Hanson Scott McLean −$4.7M Chief Technology Officer sold 27% 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 |
|---|---|---|---|---|---|---|
| 2026-08-31 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −35,000 | 79,007 | ||
| 2026-08-31 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −9,271 | 175,272 | ||
| 2026-08-27 | Hanson Scott McLean Chief Technology Officer | Option exercise | +27,500 | $8.12 | $223K | 248,726 |
| 2026-08-27 | Hanson Scott McLean Chief Technology Officer | Sale | −22,590 | $59.69 | $1.3M | 226,136 |
| 2026-08-27 | Hanson Scott McLean Chief Technology Officer | Sale | −4,910 | $60.32 | $296K | 221,226 |
| 2026-08-27 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) | −27,500 | 83,558 | ||
| 2026-08-26 | Hanson Scott McLean Chief Technology Officer | Option exercise | +10,000 | $8.12 | $81K | 221,226 |
| 2026-08-26 | Hanson Scott McLean Chief Technology Officer | Option exercise | +27,500 | $8.12 | $223K | 248,726 |
| 2026-08-26 | Hanson Scott McLean Chief Technology Officer | Sale | −27,500 | $59.58 | $1.6M | 221,226 |
| 2026-08-26 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) | −10,000 | 52,279 | ||
| 2026-08-26 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) | −27,500 | 111,058 | ||
| 2026-08-14 | Esaka Fumihide Chief Executive Officer | Option exercise 10b5-1 | +13,500 | $8.12 | $110K | 464,689 |
| 2026-08-14 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −1,282 | $63.29 | $81K | 463,407 |
| 2026-08-14 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −10,718 | $64.40 | $690K | 452,689 |
| 2026-08-14 | Esaka Fumihide Chief Executive Officer | Sale 10b5-1 | −1,500 | $65.26 | $98K | 451,189 |
| 2026-08-14 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) 10b5-1 | −13,500 | 85,507 | ||
| 2026-08-14 | Hanson Scott McLean Chief Technology Officer | Option exercise 10b5-1 | +7,000 | $8.12 | $57K | 218,226 |
| 2026-08-14 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −800 | $63.26 | $51K | 217,426 |
| 2026-08-14 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −5,400 | $64.41 | $348K | 212,026 |
| 2026-08-14 | Hanson Scott McLean Chief Technology Officer | Sale 10b5-1 | −800 | $65.30 | $52K | 211,226 |
Page 5 of 9 · 176 trades