Ladder Capital Corporation stockholder tax treatment

As I work with on TurboTax Premier, a young man had invested in Ladder Capital Corporation shares in 2020 in his brokerage account. As I research, it seems to be a commercial real estate company. His taxes are ready to go but I suspect we may need to hold off filing due to a potential Schedule K-1 forthcoming. Can we proceed to file as a basic stockholder or is this treated as a partnership & we must wait for a Schedule K-1 (IRS form 1065) in mid-March or later?

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