According to a report by Jinse Finance, documents filed with the U.S. Securities and Exchange Commission (SEC) on Thursday show that Strategy (stock code: MSTR), the publicly listed company holding the most Bitcoin globally, plans to raise up to $4.2 billion by issuing a new series of preferred shares. This fundraising initiative comes just days after the company completed a nearly $2.5 billion STRC (Stretch) preferred share issuance.