Either way he's fukked for bringing attention to it.
Plus remember CTG took pictures, which means his phone was not confiscated or anything. My bet is that he was doing research into investment firms to prep for the interview and got a call from them. I'm gonna assume The Breakfast Club goes through a process in which they reach out to potential guests, set up parameters, etc and this process could take a couple weeks. So somewhere in that process CTG got the call about the firm, set up a meeting, etc.
Whoever did this didn't want the story to get out, hence why I think it was a young investment guy there who knows Martin. I bet he assumed Martin would see the CTG IG posts and be shook during the interview but not say anything. He expected Martin to bring it up off air. Instead CTG brought it up randomly and Martin was immediately stunned.
CTG is basically a patsy here. Imagine if he didn't say shyt. Martin's E-Trade account dropped 40mil today, mere days after the interview. If CTG had brought this up off air Martin would basically be somewhere putting 2 and 2 together, thinking someone is fukking him and believing the firm had something to do with it. In reality it's probably someone at the firm who knew Martin's worth was about to plummet and wanted to punk him (i.e. make him think the firm had something to do with it).