There are many ways for Costello to enrich himself without selling his shares - most OTCM CEOs don't sell their shares.
OTCM investors really need to understand how a these scams operate or they will continue to lose money.
When Costello was caught lying about his education, then about managing a billion dollar hedge fund - and owning a weed bank with deposits of over $500 million...
The serious and sophisticated investors ran away - because it was so obvious that GRNF was setup as a share selling scheme.