Form 4 for AMPX Amprius Technologies, Inc.
Accepted 2025-12-22 00:00:00 ET · period of report 2025-12-19 · accession 0002067233-25-000010 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-22 | 2025-12-19 | AMPX | Stepien Thomas M | Pres, Dir | A - Grant | $0.00 | +200.0K | 610.0K | +49% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common stock | 2025-12-19 | A | A | 200,000 | $0.00 | 610,000 | D | — | — | (F1) The securities are represented by restricted stock units granted on December 19, 2025, with a vesting commencement date of January 1, 2026. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/4th of the restricted stock units subject to the award will vest on February 20, 2027 and the remainder will vest quarterly over three years thereafter, on each May 20, August 20, November 20 and February 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030. (F2) Includes 600,000 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. |