| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Insider activity in AMBQ over the last quarter tilts toward selling: insiders offloaded a net 366,387 shares worth roughly $22.1M. In the past 30 days, 0 insiders bought and 3 sold.
All 3 insiders who sold still hold shares after their sales.
Counted by filing, the last 12 months brought no open-market purchases and 25 sales by 8 insiders worth about $38.9M. There were none in the 12 months before that either.
11 of the 25 sales in the last 12 months were made under a Rule 10b5-1 trading plan; the rest were not.
No open-market purchase by an insider appears in the AMBQ Form 4 filings on record.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 443.9K | $19.83M | -5,000 | |
| Other | 212.5K | $9.50M | -7,000 | |
| COO | 106.3K | $4.75M | -15,000 | |
| CFO | 100.8K | $4.51M | - | |
| Other | 60.6K | $2.71M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Scott McLean Hanson | Chief Technology Officer | Sale+OE10b5-1 | 7,000 | $51.00 | $357,008.35 | -3.2% | - | - | |
| Oct 15, 2026 | Fumihide Esaka | Chief Executive Officer | Sale+OE10b5-1 | 5,000 | $51.00 | $255,017.48 | -1.1% | - | - | |
| Oct 14, 2026 | Sean Chihhsiang Chen | President and COO | Sale+OE10b5-1 | 15,000 | $51.50 | $772,438.22 | -12.4% | - | - | |
| Oct 5, 2026 | Sean Chihhsiang Chen | President and COO | Sell10b5-1 | 14,007 | $67.95 | $951,744.27 | -11.6% | - | - | |
| Oct 2, 2026 | Scott McLean Hanson | Chief Technology Officer | Sell | 8,680 | $69.60 | $604,091.00 | -3.9% | - | - | |
| Oct 2, 2026 | Fumihide Esaka | Chief Executive Officer | Sell | 16,560 | $69.60 | $1,152,504.31 | -3.6% | - | - | |
| Oct 2, 2026 | Jeffrey G Winzeler | Chief Financial Officer | Sell | 5,455 | $69.60 | $379,644.54 | -5.1% | - | - | |
| Sep 15, 2026 | Scott McLean Hanson | Chief Technology Officer | Sale+OE10b5-1 | 7,000 | $60.28 | $421,942.22 | -3.1% | - | - | |
| Sep 15, 2026 | Fumihide Esaka | Chief Executive Officer | Sale+OE10b5-1 | 63,500 | $62.70 | $3,981,708.83 | -12.1% | - | - | |
| Sep 14, 2026 | Sean Chihhsiang Chen | President and COO | Sale+OE10b5-1 | 15,000 | $60.14 | $902,130.10 | -11.1% | - | - |