| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Sun Kang | Chief Executive Officer, Director | C/O AMPRIUS TECHNOLOGIES, INC.,, 1180 PAGE AVENUE, FREMONT | /s/ Sandra Wallach, attorney-in-fact on behalf of Kang Sun | 25 Aug 2025 | 0001476220 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMPX | Common stock | Sale | $447,511 | -65,654 | -4.3% | $6.82 | 1,472,306 | 21 Aug 2025 | Direct | F1, F2, F3, F4 |
| holding | AMPX | Common stock | 274,275 | 21 Aug 2025 | See Footnote | F5 |
| Id | Content |
|---|---|
| F1 | This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units. |
| F2 | The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $6.78 to $6.91, 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. |
| F3 | 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. |
| F4 | On June 10, 2025, the reporting person transferred 274,275 shares of the issuer's common stock, which were previously held directly by the reporting person, to the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees. |
| F5 | These securities are held directly by the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees. |