[Form 4] Amprius Technologies, Inc. Insider Trading Activity
Rhea-AI Filing Summary
Amprius Technologies Chief Technology Officer Stefan Constantin Ionel reported a series of stock option exercises and share sales in January 2026. Between January 21 and 23, 2026, he exercised multiple stock options with exercise prices ranging from $0.05 to $0.62 per share, converting them into common stock.
On those same dates he sold several blocks of common stock, including 73,280 shares at an average price of $12.0007, 492,827 shares at an average price of $12.0365, and 1,600 shares at $12.00, all under a Rule 10b5-1 trading plan adopted on September 11, 2025. Following these transactions, he directly owned 748,696 shares of common stock, which includes 585,697 restricted stock units that may settle into shares if their vesting conditions are met.
Positive
- None.
Negative
- None.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (right to buy) | 1,600 | $0.00 | -- |
| Exercise | Common stock | 1,600 | $0.05 | $80.00 |
| Sale | Common stock | 1,600 | $12.00 | $19K |
| Exercise | Stock Option (right to buy) | 253,928 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 72,795 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 166,104 | $0.00 | -- |
| Exercise | Common stock | 253,928 | $0.05 | $13K |
| Exercise | Common stock | 72,795 | $0.45 | $33K |
| Exercise | Common stock | 166,104 | $0.05 | $8K |
| Sale | Common stock | 492,827 | $12.0365 | $5.93M |
| Exercise | Stock Option (right to buy) | 41,563 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 15,834 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 15,883 | $0.00 | -- |
| Exercise | Common stock | 41,563 | $0.62 | $26K |
| Exercise | Common stock | 15,834 | $0.05 | $791.70 |
| Exercise | Common stock | 15,883 | $0.05 | $794.15 |
| Sale | Common stock | 73,280 | $12.0007 | $879K |
Footnotes (1)
- The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025. Includes 585,697 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 $12.00 to $12.01, 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 $12.00 to $12.135, 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. These shares were sold at $12.00. 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 shares sold.
