10-Q financial statements and notes just reported are as of 9/30/2020.
There is a section on Subsequent Events after that date. They also reported shares outstanding as of 1/10/2021 (822 million).
The books are already closed on Q4. Because the next report is a 10-K rather than 10-Q, it is not due until mid-April.
There should also be a Proxy for the annual shareholder vote. In theory it is every 12 months based on nwbo's December fiscal year, but being quite late the last 2 years may push out the due date.