That is IRRELEVANT. If he was an investor since 1910 it makes NO DIFFERENCE. When he was COMPENSATED under a pre-existing agreement - he was a paid tout.
Or as the FBI called it - a "corrupt stock promoter" who is a Co-CONspirator.
If I was an investor in XYZ Corp and then later became a compensated corrupt compensated stock promoter, it does not absolve me of my liability for engaging in a conspiracy to manipulate share prices and aid in securities fraud.
If that were the case, EVERY crook would simply buy a few shares of a pennyscam BEFORE beginning a paid tout gig and say "hay, I'm immunized now".
Does NOT work that way. His prior stock ownership is IRRELEVANT.