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Amprius Technologies, Inc.

For the period ended Jun 30, 2026. Filed Aug 6, 2026.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 6, 2026

AMPX$9.52+9.2%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Rule 10b5-1 Trading Plans

On June 29, 2026, Dr. Kang Sun, our Executive Advisor and a member of our Board of Directors, terminated the trading plan he adopted on August 18, 2025 that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a "Rule 10b5-1 Plan"). Dr. Sun's Rule 10b5-1 Plan provided for the potential sale of up to 7,217,869 shares of our common stock and, prior to its termination, was scheduled to expire on December 31, 2026.

On June 10, 2026, Dr. Steven Chu, amember of our Board of Directors, adopted a Rule 10b5-1 Plan providing for the potential sale of up to 388,057 shares of our common stock. Dr. Chu's Rule 10b5-1 Plan expires on March 13, 2027.

Except as described above, during the quarter ended June 30, 2026, no director or officer (as defined in Rule 16a-1(f))adopted orterminated a "Rule 10b5-1 trading arrangement" or a "non-Rule 10b5-1 trading arrangement," each as defined in Item 408(a) of Regulation S-K.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.