Here's "how" it could happen, not saying that it will or should...
Let's say that I have $100,000 par value in FNMA preferred and the plan is to convert 50/50 common/preferred.
I get $50,000 common stock and $50,000 preferred stock.
If warrants are exercised after I convert to common stock, my $50,000 becomes $10,000 (diluted 79.9%), and I end up with $60,000... or 60% of par.