First, I doubt BN has anywhere close to $1.4 billion. He wouldn't be running Horsesbehind if he did. Second, his clients didn't expect him to corner the float and be the first, last and only buyer of the shares. With over 70% of the float, he was the only market for PMFG and APAGF shares, so he set the price. Doubt his clients are happy with the 40% destruction in the value of their positions.
Nothing personal. Don't know the man.