Earlier quoted context omitted.
Important clarification: you do not need to have confidentiality obligations with respect to the information or a fiduciary relationship, it need only be information that is material and non-public information that belongs to the company (i.e. only available to those with a fiduciary responsibility or confidentiality obligation to the company). If an insider with confidentiality obligations shares material non-public…
That’s not quite correct, it depends on the nature of the disclosure. Someone receiving information from an insider needs be independent of personal, financial, and quid pro quo relationships. So a random person that happens to sit next to a CEO on an airplane can trade on whatever they hear. The CEO’s mistress sitting on the other side of them can’t.
I am under the impression that this would also be illegal, because trading on the basis of MNPI is itself illegal, irrespective of insider/outsider status.