Most telecoms won't do this because the potential reward simply isn't worth the liability they would have for insider trading (if they get caught spying on corporate execs, then the SEC will assume they spy on every corporate exec). In fact, most big telecoms have a secret "VIP" program that flags accounts of especially wealthy, influential or famous people and restricts access to them unless you're on the "VIP" customer service team.

I'm sure hedge funds track CEOs, but they're not using data from Verizon to do it.