Going to present one other item to supplement Randy's
Example, for lending - a Senior Vice President loan officer may have a higher loan authority than a loan officer, but they generally have to comply with the board/bank approved underwriting guidelines. They do not make policy, they adhere to it.
For purposes of SEC (stock company), the definition of insider is different. That would be anyone who has knowledge of an activity before it is released to the public, and can include administrative assistants, mailroom, printshop, etc.
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Integrity. With it, nothing else matters. Without it, nothing else matters.