The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Stefan Constantin Ionel since 2022.
This trader's CIK number is 1940928.
At the time of last reporting, Stefan Constantin Ionel was the Chief Technology Officer of Amprius Technologies, Inc.. (stock ticker symbol AMPX).
Also see all insider trading activities at Amprius Technologies, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | AMPX | 0 | $0 | 28,225 | $158,990 | 3,471 | $3,401 |
| 2024 | AMPX | 0 | $0 | 26,768 | $38,590 | 0 | $0 |
| 2023 | AMPX | 0 | $0 | 80,000 | $300,201 | 80,000 | $4,000 |
| 2022 | AMPX | 0 | $0 | 0 | $0 | 90,000 | $4,500 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-21 | AMPX | Sale | 19,159 | 6.82 | 130,587 |
| 2025-03-14 | AMPX | Option Ex | 3,471 | .98 | 3,401 |
| 2025-02-21 | AMPX | Sale | 9,066 | 3.13 | 28,403 |
| 2024-11-21 | AMPX | Sale | 8,575 | 1.97 | 16,849 |
| 2024-08-21 | AMPX | Sale | 8,800 | 1.04 | 9,152 |
| 2024-05-21 | AMPX | Sale | 5,272 | 1.33 | 7,001 |
| 2024-05-22 | AMPX | Sale | 4,121 | 1.36 | 5,588 |
| 2023-09-14 | AMPX | Sale | 46,370 | 3.65 | 169,482 |
| 2023-09-15 | AMPX | Sale | 33,630 | 3.89 | 130,719 |
| 2023-09-09 | AMPX | Option Ex | 80,000 | .05 | 4,000 |
| 2022-12-14 | AMPX | Option Ex | 30,000 | .05 | 1,500 |
| 2022-12-14 | AMPX | Option Ex | 30,000 | .05 | 1,500 |
| 2022-12-14 | AMPX | Option Ex | 30,000 | .05 | 1,500 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Stefan Constantin Ionel (Chief Technology Officer of Amprius Technologies, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.