[nostrademons]

I think it's the definition of "unfair advantage", but I don't think it's the definition of "malfeasance". The individual SEC employees have no agency here: they are required by policy to sell the stock of any companies they are investigating.

Moreover, it's not clear if any other policy would better serve the public interest. Requiring or allowing them to not to sell that stock is an even worse conflict of interest; it would incentivize them to never find a company guilty, because then their own holdings would drop. Requiring that they never own stocks would be a prohibitive restriction that would turn away many people who are most qualified for the job. The blind trust idea might work, but adds a lot of overhead for employees, and also requires another level of enforcement to make sure employees are not leaking information to the trustee.

A lot of people are really uncomfortable with the idea that someone might have an unfair advantage in financial markets, but oftentimes this is quite unavoidable. It's also pretty small-potatoes compared to the advantages that professional financiers get by being primary dealers for the Fed, or market makers, or having relationships with Wall Street policy makers, or hobnobbing with company CEOs on the golf course.