Insider trading is illegal for congress also.
I stand corrected. I was responding with rather old information. After the passage of the Stock Act, PUBLIC LAW 112–105, on April. 4, 2012, it became specifically illegal for congress critters to buy or trade stock using insider information. Prior to that time it was uncertain whether insider stock trading was illegal for them, and if it was, there was serious doubt to whether they could actually be successfully prosecuted for same.