Earlier quoted context omitted.
Yes, I think stalking is illegal for individuals, corporations, employees or members of government.
Stalking has a specific definition that I'm not sure would apply here. Your behavior on the internet is certainly tracked by corporations. Your phone's radio addresses were (are) tracked as you walk by things. None of that rises to the level of "stalking" as we commonly refer to it.
So corporate immunity? I’m not seeing an argument.