NEW YORK (AP) – Convicted former drug company CEO Martin Shkreli sued the son of one of his investors Friday in a dispute over losses from a failed hedge fund.
The countersuit in federal court in Brooklyn claims the son of George Yaffe pressured Shkreli into signing an invalid promissory note for $250,000 after Yaffe lost a $100,000 investment when the fund tanked in 2012.
The suit seeking unspecified damages says the son, Lee Yaffe, told Shkreli that paying back his father “was the ‘right thing’ to do and that Mr. Shkreli should ‘man up.'”
It describes the younger Yaffe as a sophisticated Wall Street broker “who knew Mr. Shkreli did not owe George Yaffe anything” because the note “included a usurious compound interest provision that is invalid under New York law.”
In an earlier suit filed by the father in state court, a judge last year ordered Shkreli to pay him more than $420,000 covering the promissory note plus interest.
There was no immediate response to a phone message left Friday with a lawyer for the Yaffes.
Shkreli, 36, was sentenced to seven years in prison last year for looting a drug company he founded of $11 million to pay back investors in failed hedge funds he ran.
Before his arrest, Shkreli was best known for buying the rights to a lifesaving drug at another company in 2014 and raising the price from $13.50 to $750 per pill.
He also gained notoriety for attacking critics on social media under the moniker “Pharma Bro.”