It looks like both were involved in trading inside information, one for market operations and the other for articles. If the journalist had a deal (which I can only suspect to be the case), he was facilitating the crime of insider trading.
And this actually brings up a fascinating point: is it a crime for a journalist to tell a third party when the journalist will publish a story, if both believe the story will affect the markets?
The journalist isn't telling the third party what the information is -- after all, in this case it seems like it was the third party who supplied it.
And the journalist isn't profiting financially either. They're just getting their story, not a share of profits.
I'm not aware that courts have determined that this is facilitating insider trading. And like I said, the journalist hasn't been charged with anything. But I'm not an expert.
Are you sure this would be a crime?