Ha! Unbelievable. Talk about fraud...
It's funny because we're all thinking the same thing: Jamie Dimon is shady as hell and was making sure that Chase could get in cheap! But at the same time, we all know that Bitcoin and other cryptocurrencies aren't securities. They don't pass the Howey Test. They have no "issuer." Insider trading applies to a public company's stock or other securities (like bonds or stock options).
So there was no crime here, even though we all know that's effectively what happened. He knew what kind of effect his words could have. And very few people knew what he was going to say that day.