What Sulax said is correct regarding the latest investments by Saunders and Kaplan.
Sure, they are investments, but they are lending in the latest capital round as opposed to their equity in the prior rounds. Unless, of course, they eventually convert these shares at their option. A noteworthy point, if I recall it correctly, is that the notes have a 5 year term.
Some might infer, as well as some might imply, that a few insiders are establishing a priority claim at the expense of other shareholders by investing in the notes. The priority claim is a fact. The fear of someone grabbing an advantage is real too, but fear is an emotion and not necessarily a fact.