The 13D seems to state that, from 3/8/2011 to 3/17/2023, BG converted something (?? warrants received in private placements, maybe ??) into 1,782,203 shares of common stock.

The annual report, as of 1/31/2023, shows BG had 2,643,413 shares.

Interestingly enough, the 13D is filed when someone acquires a 5% ownership in a company (or in this case maybe an additional 5% ownership?), and is supposed to be filed within ten days of the event.  If 3/17 is when the 'event' happened, then Gross is grossly late in filing the 13D.  Not that he cares if it was filed late - the SEC probably doesn't care either.

The 10-K (annual) shows shares owned by management, but I didn't see it in the latest 10-Q (quarterly).  I would estimate that currently BG and PO own about 25% of the company.