GRNF - Costello resigns as CEO of GRN Funds Llc GRN Funds @IncGrn Justin Costello has resigned as CEO of GRN Funds, LLC on April 23rd, 2020. Please contact Richard Hawkins (COO) regarding GRN Funds business and operational requests. 6:00 PM · Apr 23, 2020·Twitter for Android https://mobile.twitter.com/IncGrn The drama never ends. So what does this mean for the publicly traded company GRNF?