Donald J. Trump, the company’s largest shareholder, has said he won’t sell when a lockup agreement expires on Thursday. But other large investors could.

With the lockup period set to expire, Trump could start offloading his nearly $2 billion worth of stock, though the former president has said he wouldn't sell.

It’s a big day for Trump Media stock. The market is closely watching any move by Donald Trump and other big investors today as a lockup period that until now has barred any insiders from selling shares expired.