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AMPX - Amprius Technologies, Inc.

Insider Sale by Sun Kang (Dir)

1 Month
After Trade
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Trade Summary

4 days ago, Sun Kang, serving as Dir at Amprius Technologies, Inc. (AMPX), sold 1,500,000 shares at $15.91 per share, for a total transaction value of $23,860,714.00. Following this transaction, Sun Kang now holds 1,398,806 shares of AMPX.

This sale represents a 52.00% decrease in Sun Kang's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Wednesday, April 1, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, April 2, 2026, 1 day after the trade was made.

Amprius Technologies, Inc. operates in the INDUSTRIALS sector, specifically within the ELECTRICAL EQUIPMENT & PARTS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Sun Kang

Dir

Dr. Kang Sun is a materials scientist and technology executive who founded Amprius Technologies in 2015 and served as its President and Chief Executive Officer since February 2017[[1]](https://fintool.com/app/research/companies/AMPX/people/kang-sun)[[4]](https://energy.stanford.edu/people/kang-sun). He holds a Ph.D. in Chemistry from Brown University, an M.S. from the University of Georgia, and a B.S. from Nanjing University[[1]](https://fintool.com/app/research/companies/AMPX/people/kang-sun). Under his leadership, Amprius pioneered and commercialized silicon-anode battery technology, achieving industry-leading energy density and performance milestones for applications in aerospace, electric mobility, and high-performance electronics[[2]](https://www.businesswire.com/news/home/20251222049691/en/Amprius-Technologies-Announces-CEO-Transition). Before founding Amprius, Sun held senior executive positions across renewable energy and industrial technology sectors, including President and Chief Operating Officer of JA Solar Co. Ltd., a major photovoltaic manufacturer, and Chairman and Chief Executive Officer of RayTracker Inc., an advanced solar tracking company acquired by First Solar[[4]](https://energy.stanford.edu/people/kang-sun). He also served as Vice President and General Manager at Honeywell International Inc. and Vice President of Technology at Canon Production Printing[[4]](https://energy.stanford.edu/people/kang-sun). Sun transitioned from his CEO role at the end of 2025 and continues to serve as a director on the Amprius Board and Executive Advisor[[2]](https://www.businesswire.com/news/home/20251222049691/en/Amprius-Technologies-Announces-CEO-Transition), providing strategic guidance to the company as it advances its next generation of battery innovations[[2]](https://www.businesswire.com/news/home/20251222049691/en/Amprius-Technologies-Announces-CEO-Transition).

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Trade Price

$15.91

Quantity

1,500,000

Total Value

$23,860,714.00

Shares Owned

1,398,806

Trade Date

Wednesday, April 1, 2026

4 days ago

SEC Filing Date

Thursday, April 2, 2026

Filed 1 day after trade

INDUSTRIALSELECTRICAL EQUIPMENT & PARTS

About Amprius Technologies, Inc.

Company Overview

No company information available
View news mentioning AMPX

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