Amprius Technologies shares surge 10.43% after-hours on strategic U.S. manufacturing partnership with Nanotech Energy to boost domestic battery supply chain.

Amprius Technologies surged 10.43% in after-hours trading following the announcement of a strategic manufacturing partnership with Nanotech Energy. The collaboration establishes a U.S.-based supply chain for high-performance silicon battery cells, aligning with the National Defense Authorization Act and enhancing domestic production capabilities for defense and aerospace clients. This move strengthens Amprius’ ability to meet rising demand across commercial and industrial sectors while addressing national security requirements. Additional catalysts included a "Buy" rating from Needham with a $20 price target and the completion of a $97.5 million ATM equity offering. While the termination of a Colorado lease and $20 million termination fee were disclosed, these were overshadowed by the partnership’s strategic and operational significance.