Chen Sean Chihhsiang
SEC insider (Form 3/4/5 filer). CIK 0002078559. President and COO at Ambiq Micro, Inc. (AMBQ). 25 reported Form 4/5 transactions since Sep 2024; latest on Oct 14, 2026. Located in AUSTIN, TX.
Companies Chen Sean Chihhsiang has filed insider reports for
- Ambiq Micro, Inc. (AMBQ): Officer, President and COO
Chen Sean Chihhsiang
CIK: 0002078559
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)19 (76.0%)
Position reduction
Option Exercises (M)4 (16.0%)
Derivative conversions
Awards (A)2 (8.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
AMBQ
Ambiq Micro, Inc.
Officer
Discretionary Trading P&L
Holdings
Transaction History (25 total)
- Oct 14, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect2K shares at avg. $52.47$105K - Oct 14, 2026AMBQ
Ambiq Micro, Inc.
ExerciseDirect15K shares at avg. $8.12$122K - Oct 14, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect4K shares at avg. $53.44$214K - Oct 14, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect7.5K shares at avg. $50.13$378K - Oct 14, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect200 shares at avg. $54.27$11K - Oct 14, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect1.3K shares at avg. $51.53$65K - Oct 5, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect5.5K shares at avg. $66.38$366K - Oct 5, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect1.8K shares at avg. $67.29$121K - Oct 5, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect800 shares at avg. $68.08$54K - Oct 5, 2026AMBQ
Ambiq Micro, Inc.
SaleDirect100 shares at avg. $69.51$7K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 2,000 | $52.47 | $104,936 | Direct |
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Exercise | 15,000 | $8.12 | $121,800 | Direct |
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 4,000 | $53.44 | $213,745 | Direct |
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 7,539 | $50.13 | $377,923 | Direct |
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 200 | $54.27 | $10,854 | Direct |
| Oct 14, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 1,261 | $51.53 | $64,980 | Direct |
| Oct 5, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 5,508 | $66.38 | $365,625 | Direct |
| Oct 5, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 1,797 | $67.29 | $120,913 | Direct |
| Oct 5, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 800 | $68.08 | $54,461 | Direct |
| Oct 5, 2026 | AMBQ Ambiq Micro, Inc. | Sale | 100 | $69.51 | $6,951 | Direct |
1-10 of 25 transactions