Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$6.95K
100 shares @ $69.51
Traded
Oct 5, 2026
Filed
Oct 6, 2026
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Ambiq Micro
AMBQ
ManufacturingElectronic Equipment
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
108 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Chen Sean Chihhsiang President And COO | Oct 6, 2026 1-day lag | Sale Oct 5, 2026 | $6.95K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Oct 6, 2026 1-day lag | Sale Oct 5, 2026 | $120.91K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Oct 6, 2026 4-day lag | Sale Oct 2, 2026 | $21.7K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Oct 6, 2026 4-day lag | Sale Oct 2, 2026 | $172.22K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Oct 6, 2026 4-day lag | Sale Oct 2, 2026 | $209.87K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Sep 17, 2026 2-day lag | Sale Sep 15, 2026 | $6.1K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Sep 17, 2026 2-day lag | Exercise Sep 15, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Sep 17, 2026 2-day lag | Sale Sep 15, 2026 | $116.27K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Sep 17, 2026 2-day lag | Exercise Sep 15, 2026 | $56.84K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Sep 17, 2026 2-day lag | Sale Sep 15, 2026 | $299.57K Filed shares x price | SEC Form 4 View filing | |
| Zhang Ker Director | Sep 15, 2026 4-day lag | Sale Sep 11, 2026 | $57.55K Filed shares x price | SEC Form 4 View filing | |
| Zhang Ker Director | Sep 15, 2026 4-day lag | Sale Sep 11, 2026 | $576.81K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 15, 2026 1-day lag | Sale Sep 14, 2026 | $154.35K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 15, 2026 1-day lag | Exercise Sep 14, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 15, 2026 1-day lag | Sale Sep 14, 2026 | $662.62K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 15, 2026 1-day lag | Sale Sep 14, 2026 | $85.17K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 15, 2026 1-day lag | Exercise Sep 14, 2026 | $121.8K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 Same-day filing | Exercise Sep 15, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 Same-day filing | Sale Sep 15, 2026 | $225.44K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 Same-day filing | Exercise Sep 15, 2026 | $109.62K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 Same-day filing | Sale Sep 15, 2026 | $6.1K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 Same-day filing | Sale Sep 15, 2026 | $582.17K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 4-day lag | Exercise Sep 11, 2026 | $630K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 4-day lag | Exercise Sep 11, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 4-day lag | Sale Sep 11, 2026 | $2.66M Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 4-day lag | Sale Sep 11, 2026 | $505.57K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 15, 2026 4-day lag | Exercise Sep 11, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 9, 2026 5-day lag | Sale Sep 4, 2026 | $734.93K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 9, 2026 5-day lag | Exercise Sep 4, 2026 | $121.8K Filed shares x price | SEC Form 4 View filing | |
| Chen Sean Chihhsiang President And COO | Sep 9, 2026 5-day lag | Exercise Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing |
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$120.91K
1,797 shares @ $67.29
Traded
Oct 5, 2026
Filed
Oct 6, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$21.7K
302 shares @ $71.86
Traded
Oct 2, 2026
Filed
Oct 6, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$172.22K
2,492 shares @ $69.11
Traded
Oct 2, 2026
Filed
Oct 6, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$209.87K
3,008 shares @ $69.77
Traded
Oct 2, 2026
Filed
Oct 6, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$6.1K
100 shares @ $61
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$0
7,000 shares @ $0
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$116.27K
1,953 shares @ $59.53
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$56.84K
7,000 shares @ $8.12
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$299.57K
4,947 shares @ $60.56
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Zhang Ker
Director
Sale
Calculated transaction value
$57.55K
900 shares @ $63.95
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Zhang Ker
Director
Sale
Calculated transaction value
$576.81K
9,100 shares @ $63.39
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$154.35K
2,600 shares @ $59.36
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Exercise
Calculated transaction value
$0
15,000 shares @ $0
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$662.62K
11,000 shares @ $60.24
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$85.17K
1,400 shares @ $60.83
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Exercise
Calculated transaction value
$121.8K
15,000 shares @ $8.12
Traded
Sep 14, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
13,500 shares @ $0
Traded
Sep 15, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$225.44K
3,785 shares @ $59.56
Traded
Sep 15, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$109.62K
13,500 shares @ $8.12
Traded
Sep 15, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$6.1K
100 shares @ $61
Traded
Sep 15, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$582.17K
9,615 shares @ $60.55
Traded
Sep 15, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$630K
50,000 shares @ $12.6
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
30,993 shares @ $0
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$2.66M
42,083 shares @ $63.27
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$505.57K
7,917 shares @ $63.86
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
19,007 shares @ $0
Traded
Sep 11, 2026
Filed
Sep 15, 2026
Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$734.93K
12,874 shares @ $57.09
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Chen Sean Chihhsiang
President And COO
Exercise
Calculated transaction value
$121.8K
15,000 shares @ $8.12
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Chen Sean Chihhsiang
President And COO
Exercise
Calculated transaction value
$0
15,000 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 9, 2026