Form 4 for AMPX Amprius Technologies, Inc.
Accepted 2026-06-05 16:57:06 ET · period of report 2026-06-04 · accession 0002067233-26-000015 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-06-05 16:57 | 2026-06-04 | AMPX | Stepien Thomas M | CEO, Dir | G - Gift | $0.00 | -67.3K | 627.6K | -10% | $0 |
| I | 2026-06-05 16:57 | 2026-06-04 | AMPX | Stepien Thomas M | CEO, Dir | G - Gift | $0.00 | +36.9K | 36.9K | New | $0 |
| 2026-06-05 16:57 | 2026-06-04 | AMPX | Stepien Thomas M | CEO, Dir | S - Sale | $20.97 | -2,000 | 625.6K | -0.3% | -$41.9K |
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 | 2026-06-04 | G | D | 30,384 | $0.00 | 664,539 | D | — | — | (F1) These transfers were made on the same date as bona fide gifts. (F2) Includes 615,625 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. |
| 2 | Common | Common stock | 2026-06-04 | G | D | 36,914 | $0.00 | 627,625 | D | — | — | (F3) These securities were transferred by the reporting person to the Rogers Stepien Family Revocable Trust, for which the reporting person and his spouse are co-trustees. (F2) Includes 615,625 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. |
| 3 | Common | Common stock | 2026-06-04 | G | A | 36,914 | $0.00 | 36,914 | I See Footnote | — | — | (F3) These securities were transferred by the reporting person to the Rogers Stepien Family Revocable Trust, for which the reporting person and his spouse are co-trustees. (F4) These securities are held by the Rogers Stepien Family Revocable Trust, for which the reporting person and his spouse are co-trustees. |
| 4 | Common | Common stock | 2026-06-04 | S | D | 2,000 | $20.97 | 625,625 | D | — | — | (F2) Includes 615,625 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. |