Amprius Technologies, Inc. (NYSE: AMPX) is an advanced battery technology company specializing in high-energy-density silicon anode lithium-ion cells for aerospace, defense, and electric mobility applications. The company completed its SPAC merger in 2022 through a combination with Kensington Capital Acquisition Corp. IV, sponsored by Kensington Capital Partners, and has traded publicly on the New York Stock Exchange ever since. Amprius filed an 8-K with the SEC on June 17, 2026, the most recent in its ongoing series of public disclosures as a post-merger operating company. To access full filing history, deal analytics, and sponsor intelligence on Amprius and hundreds of other SPAC transactions, sign up for a SpacDesk account at SpacDesk.com.