Insiders / Esaka Fumihide
Esaka Fumihide
CIK 2078454personinsider
Companies
1
First seen
Feb 10, 2026
Last activity
Mar 10, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Ambiq Micro, Inc. · AMBQ | 391,189 | — |
All securities held
1 position · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Ambiq Micro, Inc. | Common Stock | 391,189 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Oct 7, 2025 | Exercise | AMBQ Ambiq Micro, Inc. Common Stock | $315.5K | +54K +30.33% | 230,573 0.95% of shares | low |
| Mar 6, 2026 | Grant | AMBQ Ambiq Micro, Inc. Common Stock | $0 | +161K +69.66% | 391,189 1.62% of shares | low |
| Oct 7, 2025 | Exercise | AMBQ Ambiq Micro, Inc. Stock Option (Right to Buy) | — | -54K -100.00% | 0 0.00% of shares | low |