KULR Technology Group is aiming to raise $300 million to bolster its Bitcoin treasury, the firm revealed Monday in a filing with U.S. federal regulators—the latest sign a growing number of public and private companies are embracing the world’s oldest cryptocurrency.

California-based KULR, which has pivoted to become a self-described "Bitcoin-First" company, plans to raise $300 by selling its common stock shares in an at-the-market offering, with assistance from Cant