[colinmorelli]

My statement was copied from Cornell Law's definition [1].

But, yes, all of these shorthand definitions are designed for the general public's consumption, and skip over specific nuances - including the SEC's definition. The sentence read above would seem to permit a person with a fiduciary duty to share information with someone who does not have one, and for that person to trade based on the information. However, we know this is not permitted.

In any case, I think my comment still stands. I specifically called out in my parenthetical in the original comment that the information would need to be knowable only by those with a fiduciary or confidentiality obligation to the company. This seems to cover your comment and sibling's concern.

[1]: https://www.law.cornell.edu/wex/insider_trading