While the move still requires regulatory review, the sale would enable Blockstack to raise capital through the U.S. securities markets via a subsidiary, Blockstack Token LLC, which would sell a token called Blockstack Stacks (STX) in a securities offering designed to be more flexible than an IPO. Introduced in 2012 under the JOBS Act, the Regulation A+ exemption enables equity crowdfunding campaigns to offer and sell securities to U.S. investors via two tiers, either for $20 million or $50 million, each over a 12-month period. A company can initiate a Regulation A+ offering by filing an offering statement with the SEC, which Blockstack officially submitted today.

https://www.coindesk.com/blockstack-to-raise-50-million-in-first-reg-a-crypto-token-sale