Chen Sean Chihhsiang
President And COO
Sale
Calculated transaction value
$122.62K
2,126 shares @ $57.68
Traded
Sep 4, 2026
Filed
Sep 9, 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 | Sep 9, 2026 5-day lag | Sale Sep 4, 2026 | $122.62K Filed shares x price | SEC Form 4 View filing | |
| Zhang Ker Director | Sep 9, 2026 5-day lag | Exercise Sep 4, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Zhang Ker Director | Sep 9, 2026 5-day lag | Sale Sep 4, 2026 | $10.53K Filed shares x price | SEC Form 4 View filing | |
| Zhang Ker Director | Sep 9, 2026 5-day lag | Exercise Sep 4, 2026 | $10.5K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 Same-day filing | Sale Sep 2, 2026 | $81.53K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 Same-day filing | Exercise Sep 2, 2026 | $138.94K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 Same-day filing | Sale Sep 2, 2026 | $543.57K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 Same-day filing | Exercise Sep 2, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 1-day lag | Sale Sep 1, 2026 | $2.76M Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 1-day lag | Exercise Sep 1, 2026 | $617.06K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 1-day lag | Exercise Sep 1, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $122.89K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Exercise Aug 31, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $796.28K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $886.22K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $327.36K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Exercise Aug 31, 2026 | $557.81K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Exercise Aug 31, 2026 | $109.62K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Exercise Aug 31, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $335.45K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Sale Aug 31, 2026 | $317.71K Filed shares x price | SEC Form 4 View filing | |
| Esaka Fumihide Chief Executive Officer | Sep 2, 2026 2-day lag | Exercise Aug 31, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 1-day lag | Exercise Aug 27, 2026 | $223.3K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 1-day lag | Sale Aug 27, 2026 | $1.35M Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 1-day lag | Sale Aug 27, 2026 | $296.18K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 1-day lag | Exercise Aug 27, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 2-day lag | Exercise Aug 26, 2026 | $223.3K Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 2-day lag | Exercise Aug 26, 2026 | $0 Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 2-day lag | Sale Aug 26, 2026 | $1.64M Filed shares x price | SEC Form 4 View filing | |
| Hanson Scott Mclean Chief Technology Officer | Aug 28, 2026 2-day lag | Exercise Aug 26, 2026 | $0 Filed shares x price | SEC Form 4 View filing |
Zhang Ker
Director
Exercise
Calculated transaction value
$0
1,785 shares @ $0
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Zhang Ker
Director
Sale
Calculated transaction value
$10.53K
185 shares @ $56.92
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Zhang Ker
Director
Exercise
Calculated transaction value
$10.5K
1,785 shares @ $5.88
Traded
Sep 4, 2026
Filed
Sep 9, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$81.53K
1,452 shares @ $56.15
Traded
Sep 2, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$138.94K
11,027 shares @ $12.6
Traded
Sep 2, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$543.57K
9,575 shares @ $56.77
Traded
Sep 2, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
11,027 shares @ $0
Traded
Sep 2, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$2.76M
48,973 shares @ $56.39
Traded
Sep 1, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$617.06K
48,973 shares @ $12.6
Traded
Sep 1, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
48,973 shares @ $0
Traded
Sep 1, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$122.89K
2,100 shares @ $58.52
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
35,000 shares @ $0
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$796.28K
13,800 shares @ $57.7
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$886.22K
15,600 shares @ $56.81
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$327.36K
5,600 shares @ $58.46
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$557.81K
44,271 shares @ $12.6
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$109.62K
13,500 shares @ $8.12
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
9,271 shares @ $0
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$335.45K
5,899 shares @ $56.87
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Sale
Calculated transaction value
$317.71K
5,501 shares @ $57.75
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Esaka Fumihide
Chief Executive Officer
Exercise
Calculated transaction value
$0
13,500 shares @ $0
Traded
Aug 31, 2026
Filed
Sep 2, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$223.3K
27,500 shares @ $8.12
Traded
Aug 27, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$1.35M
22,590 shares @ $59.69
Traded
Aug 27, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$296.18K
4,910 shares @ $60.32
Traded
Aug 27, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$0
27,500 shares @ $0
Traded
Aug 27, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$223.3K
27,500 shares @ $8.12
Traded
Aug 26, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$0
10,000 shares @ $0
Traded
Aug 26, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Sale
Calculated transaction value
$1.64M
27,500 shares @ $59.58
Traded
Aug 26, 2026
Filed
Aug 28, 2026
Hanson Scott Mclean
Chief Technology Officer
Exercise
Calculated transaction value
$0
27,500 shares @ $0
Traded
Aug 26, 2026
Filed
Aug 28, 2026