Sean Chihhsiang Chen
President and COO · 7 filings · Latest: Oct 14, 2026
Ambiq Micro, Inc.
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|
AMBQ | Sean Chihhsiang Chen | President and COO | Oct 14, 2026 | Sale | $51.50 | 15,000 | $772.4K | 106,268 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Oct 14, 2026 | Option Exercise | $8.12 | 15,000 | $121.8K | 121,268 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Oct 5, 2026 | Sale | $66.78 | 8,205 | $548.0K | 106,268 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Oct 2, 2026 | Sale | $69.60 | 5,802 | $403.8K | 114,473 | |
AMBQ | SEAN CHEN | — | Oct 5, 2026 | Proposed Sale | $68.18 | 53,205 | $3.6M | — | |
AMBQ | Sean Chihhsiang Chen | — | Oct 2, 2026 | Proposed Sale | $69.15 | 5,802 | $401.2K | — | |
AMBQ | Sean Chihhsiang Chen | President and COO | Sep 14, 2026 | Sale | $60.14 | 15,000 | $902.1K | 120,275 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Sep 14, 2026 | Option Exercise | $8.12 | 15,000 | $121.8K | 135,275 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Sep 4, 2026 | Sale | $57.17 | 15,000 | $857.6K | 120,275 | |
AMBQ | Sean Chihhsiang Chen | President and COO | Sep 4, 2026 | Option Exercise | $8.12 | 15,000 | $121.8K | 135,275 | |
AMBQ | SEAN CHEN | — | Sep 4, 2026 | Proposed Sale | $56.43 | 30,000 | $1.7M | — | |
AMBQ | Sean Chihhsiang Chen | President and COO | May 15, 2026 | Sale | $70.89 | 55,685 | $3.9M | 120,275 | |
AMBQ | Sean Chihhsiang Chen | President and COO | May 15, 2026 | Option Exercise | $5.88 | 55,685 | $327.4K | 175,960 | |
AMBQ | SEAN CHEN | — | May 15, 2026 | Proposed Sale | $70.89 | 55,685 | $3.9M | — |