I'm surprised they got to you that quickly. Having worked in finance most of my career, some of which involved fielding SEC inquiries, my impression is they are way behind enforcement. Although, to be fair, usually the inquiries I was fielding were more to do with spoofing and manipulation, not insider trading.
I know a few ppl in compliance at different exchanges, they move pretty quickly if they think it’s a one off, if it looks like it’s part of a larger game they’ll be more methodical. But this sounds pretty standard, it looked odd but not too odd so just warranted a quick call.
