SEC staff guidance: Rule 10b-18 (1982) is a voluntary "safe harbor" for companies buying back their own stock. Buybacks were not illegal before it.
Rule 10b-18 does not mandate the terms under which an issuer may repurchase its shares without engaging in manipulation.
SEC staff guidance: Rule 10b-18 (1982) is a voluntary "safe harbor" for companies buying back their own stock. Buybacks were not illegal before it.