Based on my understanding of the manner Zenith was spun out of Resverlogix, developments in Zenith are *supposed* to have no material impact on Resverlogix.  Theoretically, if Zenith sold only its lead drug, then Zenith could choose to offer a loan to Resverlogix with the proceeds.

Because the two companies are *supposed* to be independent operations, Don could pretend like he disinterestedly purchased shares of RVX, pretending not to know that the CEO of a separate company called Zenith was about to offer sweetheart financing to RVX (a very, very important piece of material news).

Because schizophrenia is a difficult legal defense, he would have to be very, very bold and stupid to risk such a thing.  That would be an insane level of corruprtion, and obvious for all investors and insiders to see.