Amprius Technologies, Inc., a prominent player in the energy storage sector, has recently made headlines with a notable filing with the U.S. Securities and Exchange Commission (SEC). On April 2, 2026, the company disclosed significant changes in the ownership structure involving its director, Sun Kang. This filing, known as a Form 4, provides a detailed account of recent transactions involving Amprius’s common stock and stock options.
The filing reveals that Director Sun Kang has engaged in both the acquisition and disposal of a substantial number of shares. Specifically, Kang acquired additional shares of Amprius Technologies’ common stock, while also disposing of a considerable block of shares previously held. These transactions are indicative of Kang’s active management of his investment portfolio within the company.
In addition to the direct share transactions, the Form 4 filing also includes information on stock options exercised under a Rule 10b5‑1 trading plan. This plan, adopted earlier in the year, allows for the pre-scheduled buying or selling of company stock, providing a structured approach to managing stock transactions and mitigating potential conflicts of interest.
The disclosure provides a comprehensive overview of the number of shares acquired and sold, the remaining shares in Kang’s portfolio, and the associated transaction prices and exercise dates. Importantly, the filing confirms that Sun Kang maintains a significant ownership stake in Amprius Technologies. This stake comprises both direct shares and shares acquired through the exercise of stock options.
As of the close of trading on April 1, 2026, Amprius Technologies’ stock was priced at $16, with a 52-week high of $19.76 and a low of $1.97. The company’s market capitalization stands at approximately $2.19 billion. Despite a negative price-to-earnings ratio of -46.1, reflecting the company’s current financial performance, Amprius continues to be a key player in the development and manufacturing of high-energy and high-capacity lithium-ion batteries. These batteries are utilized across a diverse range of applications, including electric vehicles, robotics, satellites, wearables, and drones.
Amprius Technologies, headquartered in the United States, operates as a global supplier, serving customers worldwide. The company’s commitment to innovation in energy storage solutions positions it as a leader in the industrials sector, with a focus on advancing battery technology to meet the growing demands of various industries.
For investors and stakeholders, the recent ownership changes and the continued strategic focus on expanding Amprius’s product offerings underscore the company’s potential for growth. As the company navigates the evolving landscape of energy storage, its ability to maintain a competitive edge will be crucial in sustaining its market position and driving future success.
For more detailed information on Amprius Technologies’ products, services, and investment opportunities, interested parties are encouraged to visit the company’s website at www.amprius.com or explore investment options on the New York Stock Exchange, where the company’s stock is publicly traded.
