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 |
|---|---|---|---|---|---|---|
| 2026-05-15 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) | −6,601 | 184,543 | ||
| 2026-05-15 | Hanson Scott McLean Chief Technology Officer | Option exercise | +8,100 | $8.12 | $66K | 211,226 |
| 2026-05-15 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) | −8,100 | 69,279 | ||
| 2026-05-15 | Winzeler Jeffrey G Chief Financial Officer | Option exercise | +5,952 | $16.80 | $100K | 100,347 |
| 2026-05-15 | Winzeler Jeffrey G Chief Financial Officer | Option exercise · Stock Option (Right to Buy) | −5,952 | 110,905 | ||
| 2026-05-14 | Esaka Fumihide Chief Executive Officer | Option exercise | +60,000 | $8.12 | $487K | 451,189 |
| 2026-05-14 | Esaka Fumihide Chief Executive Officer | Sale | −60,000 | $70.02 | $4.2M | 391,189 |
| 2026-05-14 | Esaka Fumihide Chief Executive Officer | Option exercise · Stock Option (Right to Buy) | −60,000 | 144,470 | ||
| 2026-05-14 | Hanson Scott McLean Chief Technology Officer | Option exercise | +10,200 | $8.12 | $83K | 213,326 |
| 2026-05-14 | Hanson Scott McLean Chief Technology Officer | Sale | −3,900 | $68.62 | $268K | 209,426 |
| 2026-05-14 | Hanson Scott McLean Chief Technology Officer | Sale | −6,100 | $69.59 | $425K | 203,326 |
| 2026-05-14 | Hanson Scott McLean Chief Technology Officer | Sale | −200 | $70.50 | $14K | 203,126 |
| 2026-05-14 | Hanson Scott McLean Chief Technology Officer | Option exercise · Stock Option (Right to Buy) | −10,200 | 77,379 | ||
| 2026-05-14 | Winzeler Jeffrey G Chief Financial Officer | Option exercise | +26,000 | $16.80 | $437K | 120,395 |
| 2026-05-14 | Winzeler Jeffrey G Chief Financial Officer | Sale | −25,918 | $69.90 | $1.8M | 94,477 |
| 2026-05-14 | Winzeler Jeffrey G Chief Financial Officer | Sale | −82 | $70.65 | $6K | 94,395 |
| 2026-05-14 | Winzeler Jeffrey G Chief Financial Officer | Option exercise · Stock Option (Right to Buy) | −26,000 | 116,857 | ||
| 2026-04-02 | Connors Michele Kim General Counsel | Sale | −660 | $26.04 | $17K | 60,705 |
| 2026-04-02 | Connors Michele Kim General Counsel | Sale | −151 | $26.65 | $4K | 60,554 |
| 2026-03-06 | Connors Michele Kim General Counsel | Grant or award | +32,123 | 61,365 |
Page 7 of 9 · 176 trades