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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker AMBQ
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,200 | $51.85 | $62.2K Sale | Form 4 ↗ |
| Oct 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 2,800 | $51.15 | $143.2K Sale | Form 4 ↗ |
| Oct 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 500 | $50.02 | $25.0K Sale | Form 4 ↗ |
| Oct 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 500 | $49.13 | $24.6K Sale | Form 4 ↗ |
| Oct 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,800 | $51.86 | $93.4K Sale | Form 4 ↗ |
| Oct 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 3,700 | $51.12 | $189.1K Sale | Form 4 ↗ |
| Oct 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 900 | $50.08 | $45.1K Sale | Form 4 ↗ |
| Oct 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 600 | $49.06 | $29.4K Sale | Form 4 ↗ |
| Oct 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 200 | $54.27 | $10.9K Sale | Form 4 ↗ |
| Oct 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 4,000 | $53.44 | $213.7K Sale | Form 4 ↗ |
| Oct 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 2,000 | $52.47 | $104.9K Sale | Form 4 ↗ |
| Oct 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 1,261 | $51.53 | $65.0K Sale | Form 4 ↗ |
| Oct 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 7,539 | $50.13 | $377.9K Sale | Form 4 ↗ |
| Sep 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 100 | $61.00 | $6,100 Sale | Form 4 ↗ |
| Sep 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 9,615 | $60.55 | $582.2K Sale | Form 4 ↗ |
| Sep 15, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 3,785 | $59.56 | $225.4K Sale | Form 4 ↗ |
| Sep 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 100 | $61.00 | $6,100 Sale | Form 4 ↗ |
| Sep 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 4,947 | $60.56 | $299.6K Sale | Form 4 ↗ |
| Sep 15, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,953 | $59.53 | $116.3K Sale | Form 4 ↗ |
| Sep 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 1,400 | $60.83 | $85.2K Sale | Form 4 ↗ |
| Sep 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 11,000 | $60.24 | $662.6K Sale | Form 4 ↗ |
| Sep 14, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 2,600 | $59.36 | $154.3K Sale | Form 4 ↗ |
| Sep 11, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 7,917 | $63.86 | $505.6K Sale | Form 4 ↗ |
| Sep 11, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 42,083 | $63.27 | $2.7M Sale | Form 4 ↗ |
| Sep 11, 2026 | Ker Zhang Director | AMBQ Ambiq Micro, Inc. | Sale | 900 | $63.95 | $57.6K Sale | Form 4 ↗ |
| Sep 11, 2026 | Ker Zhang Director | AMBQ Ambiq Micro, Inc. | Sale | 9,100 | $63.39 | $576.8K Sale | Form 4 ↗ |
| Sep 4, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 2,126 | $57.68 | $122.6K Sale | Form 4 ↗ |
| Sep 4, 2026 | Sean Chihhsiang Chen President and COO | AMBQ Ambiq Micro, Inc. | Sale | 12,874 | $57.09 | $735.0K Sale | Form 4 ↗ |
| Sep 4, 2026 | Ker Zhang Director | AMBQ Ambiq Micro, Inc. | Sale | 185 | $56.92 | $10.5K Sale | Form 4 ↗ |
| Sep 2, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 9,575 | $56.77 | $543.6K Sale | Form 4 ↗ |
| Sep 2, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,452 | $56.15 | $81.5K Sale | Form 4 ↗ |
| Sep 1, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 48,973 | $56.39 | $2.8M Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 5,600 | $58.46 | $327.4K Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 13,800 | $57.70 | $796.3K Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 15,600 | $56.81 | $886.2K Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 2,100 | $58.52 | $122.9K Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 5,501 | $57.75 | $317.7K Sale | Form 4 ↗ |
| Aug 31, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 5,899 | $56.87 | $335.5K Sale | Form 4 ↗ |
| Aug 27, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 4,910 | $60.32 | $296.2K Sale | Form 4 ↗ |
| Aug 27, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 22,590 | $59.69 | $1.3M Sale | Form 4 ↗ |
| Aug 26, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 27,500 | $59.58 | $1.6M Sale | Form 4 ↗ |
| Aug 14, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,500 | $65.26 | $97.9K Sale | Form 4 ↗ |
| Aug 14, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 10,718 | $64.40 | $690.2K Sale | Form 4 ↗ |
| Aug 14, 2026 | Fumihide Esaka Chief Executive Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 1,282 | $63.29 | $81.1K Sale | Form 4 ↗ |
| Aug 14, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 800 | $65.30 | $52.2K Sale | Form 4 ↗ |
| Aug 14, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 5,400 | $64.41 | $347.8K Sale | Form 4 ↗ |
| Aug 14, 2026 | Scott McLean Hanson Chief Technology Officer, Director | AMBQ Ambiq Micro, Inc. | Sale | 800 | $63.26 | $50.6K Sale | Form 4 ↗ |
| May 27, 2026 | Timothy Chen Director | AMBQ Ambiq Micro, Inc. | Sale | 3,264 | $81.57 | $266.2K Sale | Form 4 ↗ |
| May 27, 2026 | Timothy Chen Director | AMBQ Ambiq Micro, Inc. | Sale | 20,666 | $80.61 | $1.7M Sale | Form 4 ↗ |
| May 27, 2026 | Timothy Chen Director | AMBQ Ambiq Micro, Inc. | Sale | 24,248 | $79.72 | $1.9M Sale | Form 4 ↗ |
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