$AMPX

$8.36 +$0.18 (2.14%) Live

$AMPX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Company Executives

$AMPX Management Team

Mr. Donald Dixon

Independent Chairman of the Board

Age 77

Compensation $267.5K USD

Sex Male

Dr. C. Ionel Stefan

Chief Technology Officer

Age 52

Compensation $801.5K USD

Sex Male

Mr. Ricardo Rodriguez

Chief Financial Officer

Age 40

Compensation -

Sex Male

Mr. Tom Colton

Investor Relations

Age -

Compensation -

Sex Male

Mr. Tom Stepien

President

Chief Executive Officer

Director

Age 64

Compensation -

Sex Male

Name / Title	Age	Compensation	Sex
Mr. Donald Dixon Independent Chairman of the Board	77	$267.5K USD	Male
Dr. C. Ionel Stefan Chief Technology Officer	52	$801.5K USD	Male
Mr. Ricardo Rodriguez Chief Financial Officer	40	-	Male
Mr. Tom Colton Investor Relations	-	-	Male
Mr. Tom Stepien President Chief Executive Officer Director	64	-	Male

Board of Directors

From the proxy statement filed Apr 29, 2026

Directors

serving now

Independent

5 of 7

stated in the proxy

Average tenure

3.1 years

from year joined

CEO also chairs the board

Donald R. Dixon

Director	Age	On board	Independent	Committees	Other public boards	Pay
Kathleen Bayless	Not stated	2023 3 years	Independent	Audit Committee · Chair	Veeco Instruments, Ballard Power Systems	Not stated
Thomas M. Stepien CEO	Not stated	2025 1 year	Not independent	None stated	Euro Manganese	Paid as CEO
Dr. Steven Chu	Not stated	2022 4 years	Independent	Nominating and Corporate Governance Committee · Chair	Oatly Group AB	Not stated
Livingston Satterthwaite	Not stated	2024 2 years	Independent	Compensation Committee Nominating and Corporate Governance Committee	Chemours Co	Not stated
Donald R. Dixon Board chair	Not stated	2022 4 years	Independent	Audit Committee Compensation Committee	None stated	Not stated
Dr. Kang Sun	Not stated	2022 4 years	Not independent	None stated	None stated	Not stated
Dr. Wen Hsieh Leaving at the meeting	Not stated	2022 4 years	Independent	Audit Committee Compensation Committee · Chair	None stated	Not stated

Each director opens the passage of the proxy that names them. "Not stated" means the proxy does not say; it never means "no". Pay is the proxy's Director Compensation table; the CEO is paid as an executive.

No related-party transactions disclosed

The proxy filed Apr 29, 2026 describes a review policy but reports no transactions.

Read the policy in the proxy

Comments

Company Executives

$AMPX Management Team

Mr. Donald Dixon

Dr. C. Ionel Stefan

Mr. Ricardo Rodriguez

Mr. Tom Colton

Mr. Tom Stepien

Board of Directors

Related-party transactions

No related-party transactions disclosed