For insider trading on the US equities or options markets, the SEC has surveillance tools that flag unusual short term gains around corporate actions, and then

For insider trading on the US equities or options markets, the SEC has surveillance tools that flag unusual short term gains around corporate actions, and then check if any of the counterparties are insiders or related to insiders via marriage, etc. Don't think anything on that level is being done in the cryptocurrency space. Obviously a company has to trust its employees to a certain degree but it is certainly easier to conceal cryptocurrency holdings compared to a holdings of a traditional security.