You can't just say something and pretend it's true either. Which ones of the top US cannabis companies did an IPO?
Curaleaf? Reverse Merger on OTC (worth 2.2B with a B) Trulieve? Reverse Merger on OTC Cresco? Reverse Merger on OTC GTI? Reverse Merger on OTC Columbia Care? Reverse Merger on OTC Medmen? Reverse Merger on OTC Harborside? Reverse Merger on OTC Halo Labs? Reverse Merger on OTC Tilt? Reverse Merger on OTC CV Sciences? Reverse Merger on OTC Marimed? IPO on OTC in 2012. Hey there's one!
Is GRN Holding a US cannabis company? Mostly they're in ancillary services, but they do intend to have a cultivation co. as a subsidiary. So that makes them an MRB and thus ineligible for IPO on big boards. Though they could on the OTC if they wanted to take 12-18 months to do it.
The federal government has pushed MJ to the OTC market, not serial scammers.