[Form 4] Amprius Technologies, Inc. Insider Trading Activity
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Amprius Technologies, Inc. (AMPX) filed a Form 4 reporting insider transactions by its Chief Executive Officer and director, Kang Sun, on 11/17/2025. Sun exercised multiple stock options for Amprius common stock at exercise prices of $0.98, $0.05, and $0.62 per share and then reported an open market sale of 1,000,000 shares at an average price of $10.5953 per share.
The filing states these option exercises and related sales were carried out under a Rule 10b5-1 trading plan adopted on August 18, 2025. After the reported transactions, Sun beneficially owned 1,472,306 shares directly, which includes 1,411,769 restricted stock units, and an additional 274,275 shares indirectly through a family trust where he and his spouse serve as co-trustees.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Seller: 1,000,000 shares ($10,595,300)
Net Sell
10 txns
Insider
Sun Kang
Role
Chief Executive Officer
Sold
1,000,000 shs ($10.60M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (right to buy) | 202,934 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 727,950 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 27,463 | $0.00 | -- |
| Exercise | Stock Option (right to buy) | 41,653 | $0.00 | -- |
| Exercise | Common stock | 202,934 | $0.98 | $199K |
| Exercise | Common stock | 727,950 | $0.05 | $36K |
| Exercise | Common stock | 27,463 | $0.62 | $17K |
| Exercise | Common stock | 41,653 | $0.62 | $26K |
| Sale | Common stock | 1,000,000 | $10.5953 | $10.60M |
| holding | Common stock | -- | -- | -- |
Holdings After Transaction:
Stock Option (right to buy) — 0 shares (Direct);
Common stock — 1,675,240 shares (Direct);
Common stock — 274,275 shares (Indirect, See Footnote)
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 August 18, 2025. Includes 1,411,769 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 $10.19 to $11.30, 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 securities are held directly by the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees.
