Ambiq Micro, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Ambiq Micro, Inc. (AMBQ), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are AMBQ insiders buying or selling?
In the last 12 months, Ambiq Micro, Inc. insiders reported 0 open-market purchases ($0) and 25 sales ($38.9M) — net selling of $38.9M. Since January 2026, Trabud has recorded 25 Form 4 filings for AMBQ: 0 buys ($0) and 25 sells ($38.9M).
Source: SEC EDGAR Form 4
What stands out
- No Ambiq Micro, Inc. insider made an open-market purchase in the last 12 months; the 25 reported open-market sales totaled $38.9M.
Key Statistics (January 2026 – Oct 16, 2026)
Total Form 4 filings
25
SEC EDGAR
Insider filers
8
Insider buys (0)
$0
Insider sells (25)
$38.9M
Insider sentiment
Net sellingNet insider flow of $38.9M in net selling since January 2026, and $38.9M in net selling over the last 12 months.
Recent AMBQ insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Oct 16, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 7.0K | $51.00 | $357.0K | SEC ↗ |
| Oct 16, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 5.0K | $51.00 | $255.0K | SEC ↗ |
| Oct 16, 2026 | Sean Chihhsiang Chen | President and COO | Sale | 15.0K | $51.50 | $772.4K | SEC ↗ |
| Oct 7, 2026 | Jeffrey G Winzeler | Chief Financial Officer | Sale | 5.5K | $69.60 | $379.6K | SEC ↗ |
| Oct 6, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 16.6K | $69.60 | $1.2M | SEC ↗ |
| Oct 6, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 8.7K | $69.60 | $604.1K | SEC ↗ |
| Oct 6, 2026 | Sean Chihhsiang Chen | President and COO | Sale | 14.0K | $67.95 | $951.7K | SEC ↗ |
| Sep 17, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 7.0K | $60.28 | $421.9K | SEC ↗ |
| Sep 15, 2026 | Ker Zhang | Director | Sale | 10.0K | $63.44 | $634.4K | SEC ↗ |
| Sep 15, 2026 | Sean Chihhsiang Chen | President and COO | Sale | 15.0K | $60.14 | $902.1K | SEC ↗ |
| Sep 15, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 63.5K | $62.70 | $4.0M | SEC ↗ |
| Sep 9, 2026 | Sean Chihhsiang Chen | President and COO | Sale | 15.0K | $57.17 | $857.6K | SEC ↗ |
| Sep 9, 2026 | Ker Zhang | Director | Sale | 185 | $56.92 | $10.5K | SEC ↗ |
| Sep 2, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 108.5K | $56.89 | $6.2M | SEC ↗ |
| Aug 28, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 55.0K | $59.69 | $3.3M | SEC ↗ |
| Aug 18, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 7.0K | $64.38 | $450.6K | SEC ↗ |
| Aug 18, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 13.5K | $64.39 | $869.2K | SEC ↗ |
| May 29, 2026 | Timothy Chen | Director | Sale | 70.6K | $79.79 | $5.6M | SEC ↗ |
| May 18, 2026 | Jeffrey G Winzeler | Chief Financial Officer | Sale | 26.0K | $69.90 | $1.8M | SEC ↗ |
| May 18, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 10.2K | $69.24 | $706.3K | SEC ↗ |
| May 18, 2026 | Sean Chihhsiang Chen | President and COO | Sale | 55.7K | $70.89 | $3.9M | SEC ↗ |
| May 18, 2026 | Fumihide Esaka | Chief Executive Officer | Sale | 60.0K | $70.02 | $4.2M | SEC ↗ |
| Apr 6, 2026 | Michele Kim Connors | General Counsel | Sale | 811 | $26.15 | $21.2K | SEC ↗ |
| Jan 28, 2026 | Joseph A Tautges | Director | Sale | 7.8K | $31.00 | $241.8K | SEC ↗ |
| Jan 28, 2026 | Scott Mclean Hanson | Chief Technology Officer | Sale | 10.0K | $31.00 | $310.0K | SEC ↗ |
Showing the 25 most recent of 25 Form 4 filings for Ambiq Micro, Inc..
Most active AMBQ insiders
- Scott Mclean Hanson7 filings
- Fumihide Esaka6 filings
- Sean Chihhsiang Chen5 filings
- Jeffrey G Winzeler2 filings
- Ker Zhang2 filings
Ask anything about AMBQ insider activity
Use Trabud's AI agent to query Ambiq Micro, Inc.'s Form 4 history in plain English — "Show me AMBQ CEO purchases this year" or compare it against any other ticker.
Open the AI agentAMBQ insider trading FAQ
Are Ambiq Micro, Inc. insiders buying or selling?
In the last 12 months, Ambiq Micro, Inc. insiders reported 0 open-market purchases ($0) and 25 sales ($38.9M) — net selling of $38.9M. Since January 2026, Trabud has recorded 25 Form 4 filings for AMBQ: 0 buys ($0) and 25 sells ($38.9M). Over the full record that is net selling of $38.9M.
How many insiders trade AMBQ stock?
8 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Ambiq Micro, Inc.. The most recent filing was accepted on Oct 16, 2026.
Where does Trabud get AMBQ insider trading data?
All AMBQ insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.