Claimed he was from Merrill Lynch. Said there was a networking event coming up in my area and asked me for my email address. Then started asking how long I've been at my company, whether I was participating in the 401k, and how I thought it was going. I stopped him and asked for him to just email me since I had very little information (proof) about him or his purpose for calling. He said sure and we hung up. Internet search showed it was an unlisted landline.
Just got the same call. He told me his name was Adam Marcellus. Said he got my information from Linked In and some other site. He gave me his direct call back information.