USAR ▲ +3.7% - USA Rare Earth, Inc. $USAR USARW - USA Rare Earth Completes Combination with Serra Verde Group USA Rare Earth completed its combination with Serra Verde Group, a transaction that expands the company's operational footprint in rare earth processing. The deal closing drove investor optimism, with shares rising 3.7% on the news. 04-SEP-2026 07:00 AM ET