This came to me through my investment company. So it is not a scam. What troubles me is that they say my account may be impacted whether I agree to participate or not, which is bullshit.

I am going to get in touch with the investment company and find out what the hell is going on. They can't force you to sell stock, but they can make moves with the stock in a merger. You may be given shares in a new company without your approval once a merger takes place, but they damned well aren't going to give me any ten bucks a share value in a new stock when my shares are above forty.