Self-dealing like that really is, not saying I see any reason to suspect its that and not something else, but, yeah, doing that and cocncealing it absolutely would be a reason for both firing him and making the statement made.
Unless Brockman was involved, though, firing Brockman doesn't really make sense.
Ousted to the tune of millions and millions of dollars tho. Yeah he didn't get an IPO pop, but he's still worth more than you or I could make in several lifetime.
There's a difference between self-dealing you sell the board on and self-dealing you conceal from the board (also, different where its a pure for-profit where the self-dealing happens and where there is a non-profit involved, because the latter not only raises issues of conflict of interest with the firm, but also potential violations of the rules governing non-profits.)