Ambiq Micro, Inc (AMBQ) insider trading
Every open-market stock purchase and sale by Ambiq Micro, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Fumihide Esaka (CEO) and 4 others sold $22M in the last 90 days.
- No open-market insider buys on record.
Last 12 months: insiders bought $0 (0 buys) and sold $38.9M (25 sales). Last close $49.57 on Oct 22, 2026.
Recent AMBQ insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Sold | $189K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Sold | $143K |
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Sold | $93.4K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Sold | $62.2K |
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Bought (not open market) | $56.8K |
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Sold | $45.1K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Bought (not open market) | $40.6K |
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Sold | $29.4K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Sold | $25K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Sold | $24.6K |
| Oct 15, 2026 | Fumihide Esaka (CEO) | Bought (not open market) | — |
| Oct 15, 2026 | Scott McLean Hanson (CTO) | Bought (not open market) | — |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Sold | $378K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Sold | $214K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Bought (not open market) | $122K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Sold | $105K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Sold | $65K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Sold | $10.9K |
| Oct 14, 2026 | Sean Chihhsiang Chen (COO) | Bought (not open market) | — |
| Oct 5, 2026 | Sean Chihhsiang Chen (COO) | Sold | $366K |
| Oct 5, 2026 | Sean Chihhsiang Chen (COO) | Sold | $121K |
| Oct 5, 2026 | Sean Chihhsiang Chen (COO) | Sold | $54.5K |
| Oct 5, 2026 | Sean Chihhsiang Chen (COO) | Sold | $7K |
| Oct 2, 2026 | Fumihide Esaka (CEO) | Sold | $599K |
| Oct 2, 2026 | Fumihide Esaka (CEO) | Sold | $492K |
Who's trading AMBQ
- Scott McLean Hanson, CTO: sold $6.1M (19 sales), last Oct 15, 2026
- Fumihide Esaka, CEO: sold $16.6M (25 sales), last Oct 15, 2026
- Sean Chihhsiang Chen, COO: sold $7.4M (19 sales), last Oct 14, 2026
- Jeffrey G Winzeler, CFO: sold $2.2M (5 sales), last Oct 2, 2026
- Ker Zhang, Insider: sold $645K (3 sales), last Sep 11, 2026
- Wen Hsuan HSIEH, Insider: other filings, last Jun 8, 2026
- Timothy Chen, Insider: sold $5.6M (4 sales), last Jun 8, 2026
- Bernard Bennett Banks, Insider: other filings, last Jun 8, 2026
- Joseph A Tautges, Insider: sold $242K (1 sale), last Jun 8, 2026
- Michele Kim Connors, General Counsel: sold $21.2K (2 sales), last Apr 2, 2026
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