Two things....
I've owned this stock since 2009 (FTER) pre split. Had 1.4 million shares at .07 cents per share. Post split I had 14,000 shares. The price since that time was always only a few dollars or less, going all the way down to .50. and it has remained aound a buck or two for years. SO, the fact that there are only 153K shares did not make the stock move then. the new merger deal, with a 1.57 to 1 stock ratio from FTER shares to AAC Holdings shares is what is making this move higher.
Second, I believe you are right in that there is no wording that I saw in the S-4 that says anything about having to own shares before 10-31-14 in order to get this deal.
All I have to say is, let the fun continue this week! Heck, if my shares or FTER are currently worth $39 per share according to this merger aggreement, then we will see the price go into the $30's real soon once word gets out. Heck, I might be BUYING more if it only stays low for a while longer!! Tell your friends!! It is money on the table waiting for takers IMO!!!