$ Value
$2.4M
Shares
130,646
Price
$18
Filed
Mar 13
Insider
Name
HSIEH Wen Hsuan
Title
—
CIK
0001835160
Roles
Transaction Details
Transaction Date
2026-03-12
Code
S
Table
Non-Derivative
Ownership
Direct
Equity Swap
No
Shares After
44,444
Footnotes
Includes 44,444 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit. | The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $18.45 to $18.78, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above. | The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $18.12 to $18.39, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.
Filing Info
HSIEH Wen Hsuan's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-03-12 | AMPX | M | $705K |
| 2026-03-12 | AMPX | ▼ | $5.2M |
| 2026-03-12 | AMPX | ▼ | $2.4M |
| 2026-03-12 | AMPX | M | $705K |
| 2026-02-18 | AMBQ | M | $3.0M |
| 2026-02-18 | AMBQ | M | $0 |
| 2025-07-31 | AMBQ | C | — |
| 2025-07-31 | AMBQ | C | $0 |
| 2025-06-13 | AMPX | A | $0 |
Other Insiders at AMPX (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
| Chu Steven | — | $5.9M | 2026-03-12 |
| Sun Kang | — | $28.6M | 2026-04-01 |
| HSIEH Wen Hsuan | — | $5.2M | 2026-03-12 |
|
RODRIGUEZ RICARDO C.
Chief Financial Officer
|
— | — | 2026-03-04 |
|
Stefan Constantin Ionel
Chief Technology Officer
|
— | $734K | 2026-03-04 |
|
Stepien Thomas M
Chief Executive Officer
|
— | — | 2026-03-04 |