Martin Shkreli

Martin Shkreli, the 32-year-old pharmaceutical CEO who drew widespread outrage by remorselessly raising the price of a life-saving pill by 4,000 percent, has been arrested on charges of security fraud, according to news reports.

The arrest, which was apparently witnessed by a Reuters reporter in Manhattan on Thursday morning, comes nearly a year after reports first surfaced that Shkreli was being investigated by both U.S. prosecutors and the U.S. Securities and Exchange Commission, Bloomberg reported.

Shkreli became a symbol of Wall Street greed when it was reported in mid September that he had raised the price of Daraprim – a drug used to treat toxoplasmosis, primarily in newborns and HIV patients – from $1,130 to $63,000.

Critics labeled Shkreli a “putz,” a “psychopath” and “Big Pharma’s Biggest A–.”

Congress called him out on it. Hillary Clinton tore into Shkreli. Bernie Sanders rejected a donation from America’s most unpopular businessman. Even Donald Trump called Shkreli a “spoiled brat.”

Shkreli did not do his reputation any favors by calling a journalist a “moron,” quoting defiant rap lyrics on Twitter and defending the price-hike as a “great business decision.”

“Our shareholders expect us to make as much as money as possible,” he said during a health industry summit earlier this month, dressed nonchalantly in a hooded sweatshirt and sneakers. “That’s the ugly, dirty truth.”

He also promised to lower the price of Daraprim but reportedly never did.

His arrest on Thursday morning, however, has nothing to do with his much criticized Daraprim decision. Instead, the investigation dates back to Shkreli’s days at Retrophin Inc., a biotechnology firm he started in 2011 and left in September 2014 under controversial circumstances.

According to Bloomberg, prosecutors have charged Shkreli with illegally taking stock from Retrophin and using it pay off debts from unrelated business dealings.

Bloomberg said Shkreli’s lawyer and a spokesman for Retrophin didn’t immediately respond to requests for comment.

Retrophin sued Shkreli in August for misuse of company funds, accusing him of taking more than $65 million from the company and using it to secretly pay off jilted investors at a hedge fund he had nearly bankrupted, Bloomberg reported.

The SEC opened an investigation into Shkreli in 2012, according to court documents reviewed by Bloomberg.

Shkreli, who most recently trolled hip-hop fans by buying the only copy of a Wu-Tang Clan album for several millions of dollars, was typically defiant when discussing both the lawsuit and the investigations.

“The $65 million Retrophin wants from me would not dent me,” he said of the suit. “I feel great. I’m licking my chops over the suits I’m going to file against them.”

He has denied wrongdoing regarding the securities fraud investigation.

“Every transaction I’ve ever made at Retrophin was done with outside counsel’s blessing,” he said on investment blog InvestorsHub in February.

Shkreli’s arrest was apparently witnessed by Reuters legal journalist Nate Raymond, who tweeted about it on Thursday morning, “What I saw this morning: Turing’s @MartinShkreli arrested by FBI”