Esaka Fumihide has filed 13 insider transactions across 1 company since October 2025.
Most recent transaction: a option exercise of 6601 shares of Ambiq Micro, Inc. ($AMBQ) on May 15, 2026.
Activity breakdown: 0 open-market purchases and 1 sale.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 15, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Stock Option (Right to Buy) | 6601 | $0.00 | 184,543.0000 | 18,313,186 | 3.45% | 0.04% |
| May 15, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Common Stock | 45463 | $8.12 | 436,652.0000 | 18,313,186 | 11.62% | 0.25% |
| May 15, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Common Stock | 14537 | $12.60 | 451,189.0000 | 18,313,186 | 3.33% | 0.08% |
| May 14, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Stock Option (Right to Buy) | 60000 | $0.00 | 144,470.0000 | 18,313,186 | 29.34% | 0.33% |
| May 15, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Stock Option (Right to Buy) | 45463 | $0.00 | 99,007.0000 | 18,313,186 | 31.47% | 0.25% |
| May 15, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Stock Option (Right to Buy) | 7936 | $0.00 | 114,007.0000 | 18,313,186 | 6.51% | 0.04% |
| May 14, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Common Stock | 60000 | $8.12 | 451,189.0000 | 18,313,186 | 15.34% | 0.33% |
| May 14, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | S | Common Stock | 60000 | $70.02 | 391,189.0000 | 18,313,186 | 13.30% | 0.33% |
| March 6, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | A | Common Stock | 160616 | $0.00 | 391,189.0000 | 18,313,186 | 69.66% | 0.88% |
| March 6, 2026 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | A | Common Stock | 160616 | $0.00 | 391,189.0000 | 18,313,186 | 69.66% | 0.88% |
| Oct. 7, 2025 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Common Stock | 53660 | $5.88 | 230,573.0000 | 0 | 30.33% | 0.00% |
| Oct. 7, 2025 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | M | Stock Option (Right to Buy) | 53660 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Oct. 2, 2025 | Ambiq Micro, Inc. | $AMBQ | Esaka Fumihide | Chief Executive Officer | A | Common Stock | 159907 | $0.00 | 176,913.0000 | 0 | 940.30% | 0.00% |