>my guess is that, the PPS was set at future closing price before hand, and the investor took the PPS down to the price wherever he/she wanted.<
The deal could also have been at a pre-specified price. As is the case in this kind of offering, word gets out about the deal terms and those who know the terms can short into the financing announcement with essentially zero risk.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”