After prosecutors, the FBI and New York police announced racketeering charges against 46 members and associates of organized crime families this month, some of the defendants’ colorful nicknames (“Mustache Pat,” “Nicky the Wig” and “Tony the Cripple”) attracted attention and spawned jokes on social media.

But the name of one defendant, Anthony Cirillo, was no laughing matter to some of the biggest hedge fund operators on Wall Street.

Cirillo is the owner of Princeton Securities Group, a floor broker on the New York Stock Exchange that makes trades for hedge funds and investor groups. Its clients have included Point72 Asset Management -- the reincarnation of Steven Cohen’s SAC Capital -- and Glenview Capital Management, according to people familiar with the matter.

After learning of Cirillo’s arrest, Point72 and Glenview Capital severed ties to the trading company, these people said.

Cirillo’s lawyer, Joseph DiBenedetto, said that all of the firm’s clients “continue to maintain a trading agreement” with the company. “Mr. Cirillo vehemently denies the allegations made against him,” he said. Cirillo has resigned and has no control of day-to-day operations, he said.

The indictment alleges that Cirillo, 51, was involved in an illegal sports gambling business based in New York, New Jersey and Florida. It makes no mention of any activity that might be related to Princeton Securities or stock trading. Cirillo owns Princeton through a trust, regulatory records show. A person familiar with the matter said he has resigned as a trustee.

Charges Filed

Cirillo, of Englewood Cliffs, New Jersey, turned himself in on Aug. 4, the day the charges were filed, according to the office of Preet Bharara, the U.S. attorney in Manhattan. Most of the other 46 defendants were arrested. Three remained at large, the office said at the time.

Spokesmen for Point72 and Glenview declined to comment.

The conduct described in the 32-page indictment, and ascribed to other alleged members of the enterprise but not to Cirillo, includes casino-style gambling, loan-sharking, credit-card fraud and health-care fraud. Some of the other defendants are also accused of threatening to harm or kill individuals who owed them money or to whom money was owed.