// company-profile
Ambiq Micro, Inc.
AMBQ// activity-summary
Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares versus 4 sales. Buying was led by Winzeler Jeffrey G.
// 90-day insight
Over the last 90 days, Ambiq Micro, Inc. insiders bought $2.2M (24 transactions) and sold $16.3M (14 transactions).
- Most active insider: Esaka Fumihide with 8 transactions totaling $5.2M.
- Largest single sale: $4.2M by Esaka Fumihide on May 14, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Ambiq Micro, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 8, 2026 | ZHANG KER | AMBQ | Award | 4,957 | $0.00 | $0K |
| Jun 8, 2026 | HSIEH Wen Hsuan | AMBQ | Award | 4,957 | $0.00 | $0K |
| Jun 8, 2026 | Chen Timothy | AMBQ | Award | 4,957 | $0.00 | $0K |
| Jun 8, 2026 | Banks Bernard Bennett | AMBQ | Award | 4,957 | $0.00 | $0K |
| Jun 8, 2026 | TAUTGES JOSEPH A | AMBQ | Award | 4,957 | $0.00 | $0K |
45 more transactions hidden
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