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$AMPX All transactions

Amprius Technologies, Inc.

A

$ Value

$0

Shares

200,000

Price

$0

Filed

Dec 22

Insider

Name

Stepien Thomas M

Title

President

CIK

0002067233

Roles

Director Officer

Transaction Details

Transaction Date

2025-12-19

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

610,000

Footnotes

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. | 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.

Filing Info

Accession No.

0002067233-25-000010

Form Type

4

Issuer CIK

0001899287

Stepien Thomas M's History

Date Ticker Type Value
2026-03-04 AMPX A $0
2025-12-19 AMPX A $0
2025-05-01 AMPX A $0

Other Insiders at AMPX (90d)

Insider Bought Sold Last
Sun Kang $28.6M 2026-04-01
RODRIGUEZ RICARDO C.
Chief Financial Officer
2026-03-04
Stefan Constantin Ionel
Chief Technology Officer
$734K 2026-03-04
Stepien Thomas M
Chief Executive Officer
2026-03-04