RE:RE:RE:RE:RE:RE:Insider Buys small but steady buys in the last couple weeksSecurities Act says:
76 (1) No person or company in a special relationship with an issuer shall purchase or sell securities of the issuer with the knowledge of a material fact or material change with respect to the issuer that has not been generally disclosed. R.S.O. 1990, c. S.5, s. 76 (1); 2015, c. 20, Sched. 39, s. 2 (1-3).
There is nothing that I see that permits or requires a company to freeze news after an insider trade. Undisclosed news stops trading—trading does not stop disclosure of news.
Blackout policies prevent trading during common periods (like when financials are being prepared) when non-public information is being circulated internally, in my understanding.