Fumihide Esaka
Chief Executive Officer at Ambiq Micro Inc.
Sits on 1 board. Last updated September 27, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 1 year
- Director since
- 2025
1 year of board service in total across 1 board, counting each seat separately. Longest: Ambiq Micro Inc., 1 year.
Ambiq Micro Inc.
Director · Chief Executive Officer
Chief executive roles
Ambiq Micro Inc.
· Chief Executive Officer
Since July 2025
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 15, 2026 | Ambiq Micro Inc. | Option exercise | +13,500 | $8.12 | $109,620 |
| Sep 15, 2026 | Ambiq Micro Inc. | Open-market sale | −3,785 | $59.56 | $225,444 |
| Sep 15, 2026 | Ambiq Micro Inc. | Open-market sale | −9,615 | $60.55 | $582,171 |
| Sep 15, 2026 | Ambiq Micro Inc. | Open-market sale | −100 | $61.00 | $6,100 |
| Sep 11, 2026 | Ambiq Micro Inc. | Option exercise | +50,000 | $12.60 | $630,000 |
| Sep 11, 2026 | Ambiq Micro Inc. | Open-market sale | −42,083 | $63.27 | $2,662,427 |
| Sep 11, 2026 | Ambiq Micro Inc. | Open-market sale | −7,917 | $63.86 | $505,566 |
| Sep 2, 2026 | Ambiq Micro Inc. | Option exercise | +11,027 | $12.60 | $138,940 |
| Sep 2, 2026 | Ambiq Micro Inc. | Open-market sale | −1,452 | $56.15 | $81,534 |
| Sep 2, 2026 | Ambiq Micro Inc. | Open-market sale | −9,575 | $56.77 | $543,574 |
| Sep 1, 2026 | Ambiq Micro Inc. | Option exercise | +48,973 | $12.60 | $617,060 |
| Sep 1, 2026 | Ambiq Micro Inc. | Open-market sale | −48,973 | $56.39 | $2,761,534 |
| Aug 31, 2026 | Ambiq Micro Inc. | Option exercise | +13,500 | $8.12 | $109,620 |
| Aug 31, 2026 | Ambiq Micro Inc. | Open-market sale | −5,899 | $56.87 | $335,453 |
| Aug 31, 2026 | Ambiq Micro Inc. | Open-market sale | −5,501 | $57.75 | $317,709 |
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