Well, we know a couple things from the filings.
Post# of 72440
The outstanding share count increased ~48 million in the Jan-Mar 2020 time period. It also increased more since then per the 10Q.
The MFO has not filed a statement of beneficial ownership (at least 10% of the stock). This means the MFO holds less than 27 million shares total.
The Mako attacks occurred when the stock price was well above $1.
Why wouldn't they have covered by buying in to close their shorts during this period of massive liquidity? At any price IPIX has hit in 2020, Mako would have made a massive profit by covering. Why would they hang on for an extra 20% and no taxes when there is a chance they could get blown up by COVID testing.
The only plausible explanation is that their naked short position is much more massive than that say 50 million shares.