I believe its one of the note holders to the company, either the 4% or 6% convertible (IMHO). They are receiving monthly payments from the company, they typically get paid in discounted shares based on the contractual agreement of the loan and the ave. PPS over a 15 day period of time.
When the lender is paid with these discounted shares, the O/S increases and the lender has the option to either hold on to those shares, or sell them into the market which then also increases the FLOAT.
“If you want to find the secrets of the universe, think in terms of energy, frequency and vibration (not matter)” - N. Tesla