"At a hearing on July 27, 2017, the Court issued an order approving the Settlement, which provides, among other things, that the three former non-employee directors agreed to pay or cause to be paid $1,500,000 to us,... The Company received such payment in full in August 2017."
https://www.sec.gov/Archives/edgar/data/704562/000168316817003277/peregrine_10q-103117.htm
In addition to the $1.5M required to be paid, if you look up Form 4s for PPHM from August, it appears they also forfeited approx 70,000 Options for Shares.