I have gotten similar calls from this number about T. Rowe Price (I do have an acct) and their needing my vote. It does seem weird, but it is also corroborated by materials that came in the mail. Each time I have talked to them, I simply put them off, "too busy" etc. and have not really given them any info.
The same thing happened to me tonite. The caller said that he would have some one to call and talk to me again after I receive the voting materials by this weekend. I never been called by any financial company prior to the shareholder meeing, specially after bussiness hours. This is weird and very suspicious.