AMPX · Amprius Technologies, Inc. · Executive Compensation

$8.18 +0.27 (+3.41%) At close · Oct 23

Russell 2000 member Rebalance outlook locked

Market Cap

$1.21B

146.08M

Volume · Oct 23 6.16M Avg daily vol (3M) 5.59M

Named-executive compensation from the company's DEF 14A proxy statements — salary, bonus, stock and option awards, non-equity incentive, and the company-reported total per executive per fiscal year, exactly as disclosed in the Summary Compensation Table.

Fiscal 2025

Executive	Role	Salary	Bonus	Stock Awards	Option Awards	Incentive	Other	Total
Thomas Stepien	President, Chief Executive Officer	$319,712	$238,292	$2,746,000	—	—	$50,711	$3,354,715
Ricardo Rodriguez	CFO	$109,282	$158,784	$2,688,000	—	—	$26,028	$2,982,094
Ricardo C. Rodriguez	Chief Financial Officer	$109,282	$158,784	$2,688,000	—	—	$26,028	$2,982,094
Kang Sun	Executive Advisor	$633,000	$680,475	$1,318,680	—	—	$600	$2,632,755

Fiscal 2024

Executive	Role	Salary	Bonus	Stock Awards	Option Awards	Incentive	Other	Total
Kang Sun	President, Chief Executive Officer	$624,000	$624,000	$3,833,109	$573,800	—	$600	$5,655,509
Sandra Wallach	Chief Financial Officer	$451,001	$293,150	$2,024,190	—	—	$600	$2,768,941
Jonathan Bornstein	President of Amprius Lab	$390,998	$324,530	$1,509,111	—	—	$600	$2,225,239
Ricardo C. Rodriguez	Chief Financial Officer	—	—	—	—	—	—	—
Ricardo Rodriguez	CFO	—	—	—	—	—	—	—
Thomas Stepien	President, Chief Executive Officer	—	—	—	—	—	—	—

Fiscal 2023

Executive	Role	Salary	Bonus	Stock Awards	Option Awards	Incentive	Other	Total
Kang Sun	President, Chief Executive Officer	$624,000	$624,000	—	—	—	$690	$1,248,690
Jonathan Bornstein	President of Amprius Lab	$390,998	$324,530	—	—	—	$600	$716,128
Sandra Wallach	Chief Financial Officer	$373,006	$242,450	—	—	—	$600	$616,056

Fiscal 2022

Executive	Role	Salary	Bonus	Stock Awards	Option Awards	Incentive	Other	Total
Kang Sun	President, Chief Executive Officer	$343,902	$370,875	—	$1,997,274	—	$127	$2,712,178
Jonathan Bornstein	President of Amprius Lab	$299,998	$184,946	—	$871,732	—	$600	$1,357,276
Sandra Wallach	Chief Financial Officer	$299,998	$255,756	—	$232,466	—	$600	$788,820

Fiscal 2021

Executive	Role	Salary	Bonus	Stock Awards	Option Awards	Incentive	Other	Total
Kang Sun	President, Chief Executive Officer	$90,254	$40,000	—	$4,199,272	—	—	$4,329,526
Sandra Wallach	Chief Financial Officer	$117,126	$35,507	—	$1,283,082	—	—	$1,435,715

Executive changes

Person	Role	Change	Effective	Filed
Tom Stepien	Chief Executive Officer	Appointed	2026-01-01	2025-12-22
Dr. Kang Sun	Executive Advisor	Appointed	2026-01-01	2025-12-22
Sandra Wallach	Chief Financial Officer	Retired	2025-10-06	2025-10-06
Ricardo C. Rodriguez	Chief Financial Officer	Appointed	2025-10-06	2025-10-06
Sandra Wallach	Chief Financial Officer	Retired	—	2025-09-02
Tom Stepien	Class I director	Appointed	2025-05-01	2025-04-23
Justin Mirro	member of the Board of Directors	Resigned	2024-09-06	2024-09-12
Livingston "Tony" Satterthwaite	Class II director	Appointed	2024-08-13	2024-08-14
Mary Gustanski	member of the Board of Directors	Resigned	2024-08-12	2024-08-14
Mary Gustanski	Class II director	Appointed	2023-06-13	2023-06-15
Kathleen Ann Bayless	Class I director	Appointed	2023-04-25	2023-04-27
Jonathan Bornstein	President of Amprius Lab	Appointed	2023-03-06	2023-03-09

Leadership

Thomas Stepien CEO, Board Member
Ricardo C. Rodriguez CFO
Ricardo Rodriguez CFO
Dr. C. Ionel Stefan CTO
Anders Pettersson Board Member
Continuing Directors Board Member
Donald L. Runkle Board Member
Donald R. Dixon Board Member
Dr. Kang Sun Board Member
Dr. Steven Chu Board Member
Dr. Wen Hsieh Board Member
Kathleen Bayless Board Member
Livingston "Tony" Satterthwaite Board Member
Livingston Satterthwaite Board Member
Mary Gustanski Board Member
Matthew Simoncini Board Member
Mitchell Quain Board Member
Nicole Nason Board Member
Thomas LaSorda Board Member
Tom Stepien Board Member

Key facts CIK 1899287 CUSIP 03214Q108 13F (30d) 36 filings 36 filers Visit website Investor relations