SEC Form 4 · accession 0001940928-26-000024
Amprius Technologies, Inc. · AMPX
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Constantin Ionel Stefan
Officer — Chief Technology Officer
Period of report
Aug 21, 2026
Accepted (ET)
Aug 25, 2026 · 5:22 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001899287
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common stockF2,F3 | Aug 21, 2026 | S | 29,681 | $10.341 | D | 771,629 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1This 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.
- F2The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.10 to $10.48, 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.
- F3Includes 525,176 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.