This was clearly a private transaction. If it were a public transaction, the money would not have gone directly to AMHD. It would have gone to whoever had stock for sale. The "dilution" would have killed the pps.
This is a win win for shareholders. The debt comes off the books to move the company forward. This particular dilution doesn't hurt shareholders because: 1 they are restricted shares, and 2 they are restricted by the dribble rule, and 3 it is relatively light in volume.