Amprius Technologies Operating Inc (AMPX) saw its stock price surge 5.21% during pre-market trading on Friday, following the company's announcement of a significant warrant exchange transaction.

The company has entered into warrant exchange agreements to issue unregistered common shares to institutional holders in exchange for 7,128,458 public warrants with an $11.50 exercise price. The exchange ratio is tied to a four-day average volume-weighted average price (VWAP), adjusted by $0.35, then netted against the $11.50 exercise price.

This transaction, which relies on the Section 4(a)(2) exemption of the Securities Act for private placements, is expected to close on May 18, 2026, subject to customary closing conditions. The move could be viewed positively by investors as it addresses outstanding warrants and involves institutional participation.