Insider Trading for AMBQ
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
No insider transactions in the past 30 days.
Quarterly Activity (3 Months)
Acquisitions: 256.7K shares
Dispositions: 454.4K shares
Net: -197.7K shares
Insiders have been net sellers over the quarter, which institutional investors may view as a cautionary signal.
Key Insider Activity: Jul 29, 2025 to Jun 8, 2026
Chen Timothy
DirectorDirector
-1.8M shares
8 transactions
Esaka Fumihide
ExecutiveCorporate Officer
+260.5K shares
12 transactions
Chen Sean Chihhsiang
ExecutiveChief Operating Officer
+64.6K shares
6 transactions
Winzeler Jeffrey G
ExecutiveCorporate Officer
+68.4K shares
10 transactions
Hanson Scott McLean
ExecutiveCorporate Officer
+143.9K shares
10 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Jun 8, 2026 | HSIEH Wen Hsuan | DDirector | Award/Grant | 5.0K | $0.00 | $0.00 | 5.0K | View |
| Jun 8, 2026 | Chen Timothy | DDirector | Award/Grant | 5.0K | $0.00 | $0.00 | 52.6K | View |
| Jun 8, 2026 | Banks Bernard Bennett | DDirector | Award/Grant | 5.0K | $0.00 | $0.00 | 5.0K | View |
Jun 8, 2026 | Locked | — | — | — | — | — | — | — |
Jun 8, 2026 | Locked | — | — | — | — | — | — | — |
Jun 2, 2026 | Locked | — | — | — | — | — | — | — |
Jun 2, 2026 | Locked | — | — | — | — | — | — | — |
May 27, 2026 | Locked | — | — | — | — | — | — | — |
May 27, 2026 | Locked | — | — | — | — | — | — | — |
May 27, 2026 | Locked | — | — | — | — | — | — | — |
May 27, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 15, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
May 14, 2026 | Locked | — | — | — | — | — | — | — |
Apr 2, 2026 | Locked | — | — | — | — | — | — | — |
Apr 2, 2026 | Locked | — | — | — | — | — | — | — |
Mar 6, 2026 | Locked | — | — | — | — | — | — | — |
Mar 6, 2026 | Locked | — | — | — | — | — | — | — |
Mar 6, 2026 | Locked | — | — | — | — | — | — | — |
Mar 6, 2026 | Locked | — | — | — | — | — | — | — |
Mar 6, 2026 | Locked | — | — | — | — | — | — | — |
Feb 18, 2026 | Locked | — | — | — | — | — | — | — |
Feb 18, 2026 | Locked | — | — | — | — | — | — | — |
Jan 26, 2026 | Locked | — | — | — | — | — | — | — |
Jan 26, 2026 | Locked | — | — | — | — | — | — | — |
Jan 5, 2026 | Locked | — | — | — | — | — | — | — |
Jan 5, 2026 | Locked | — | — | — | — | — | — | — |
Jan 5, 2026 | Locked | — | — | — | — | — | — | — |
Jan 5, 2026 | Locked | — | — | — | — | — | — | — |
Oct 7, 2025 | Locked | — | — | — | — | — | — | — |
Oct 7, 2025 | Locked | — | — | — | — | — | — | — |
Oct 2, 2025 | Locked | — | — | — | — | — | — | — |
Oct 2, 2025 | Locked | — | — | — | — | — | — | — |
Oct 2, 2025 | Locked | — | — | — | — | — | — | — |
Oct 2, 2025 | Locked | — | — | — | — | — | — | — |
Jul 31, 2025 | Locked | — | — | — | — | — | — | — |
Jul 31, 2025 | Locked | — | — | — | — | — | — | — |
Jul 29, 2025 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net buyers of AMBQ stock, which is typically a strong positive signal.