Ricardo C. Rodriguez - 06 Oct 2025 Form 4 Insider Report for Amprius Technologies, Inc. (AMPX)

Role: Chief Financial Officer
Signature: /s/ Ricardo C. Rodriguez
Issuer symbol: AMPX
Transactions as of: 06 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 08 Oct 2025, 17:16:03 UTC
Previous filing: 11 Mar 2025
Next filing: 13 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
RODRIGUEZ RICARDO C.	Chief Financial Officer	1180 PAGE AVE., FREMONT	/s/ Ricardo C. Rodriguez	08 Oct 2025	0001920996

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMPX	Common stock	Award	$0	+200,000		$0.000000	200,000	06 Oct 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The securities are represented by restricted stock units granted on October 6, 2025. 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 November 20, 2026 and the remainder will vest quarterly over three years thereafter, on each February 20, May 20, August 20 and November 20, subject to the reporting person's continued service on each such date, until the award is fully vested on November 20, 2029.

Content

The securities are represented by restricted stock units granted on October 6, 2025. 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 November 20, 2026 and the remainder will vest quarterly over three years thereafter, on each February 20, May 20, August 20 and November 20, subject to the reporting person's continued service on each such date, until the award is fully vested on November 20, 2029.