IMO, Geert buys token amounts to lure retail investors. Note that he makes a $500+K salary, so it's not like he's making a major commitment. Also, Pavco is the only other insider to have made at least a token purchase. More to the point: insiders have been correct to stand aside.
On another point, the MirImmune acquisition makes no sense to me. Desperation due to doubt of pipelines?