A dual United States and Nigerian citizen, Izunna Okonkwo, has been indicted alongside five other individuals of different nationalities over an alleged $41m stock market fraud in the United States.

A statement obtained from the United States Department of Justice website on Sunday disclosed that Okonkwo and the other defendants allegedly engaged in insider trading activities between June 2020 and February 2024.

According to the statement, the six suspects were formally charged on Friday for their roles in the years-long scheme involving the trading of securities based on material non-public information.

The Department of Justice identified the other defendants as Muhammad Saad Shoukat, 33; his brothers, Muhammad Arham Shoukat, 35, and Muhammad Shahwaiz Shoukat, 36, who are all dual US-Pakistani citizens, as well as their friend, Daniyal Khan, 33, a dual UK-Pakistani citizen.

Explaining the insider trading operation, the statement said, “Kim worked at an investment bank that was actively involved in multiple mergers and acquisitions of publicly traded healthcare and biopharmaceutical companies.

“Kim obtained material non-public information about many of these pending deals, either by working on the deals directly or from others who did.

“Kim illegally shared the information about at least nine of these deals with Saad Shoukat, who traded on that information by himself and through others.

“Saad Shoukat also tipped off others—including Arham Shoukat, Shahwaiz Shoukat, Khan, and Okonkwo—who similarly traded and profited from the material non-public information. Overall, Saad Shoukat and his co-conspirators received illicit profits from the insider trading scheme totalling at least $41m.”

The statement further alleged that the defendants also engaged in what it described as the Olema Manipulation Scheme.

It stated that “Saad Shoukat, Arham Shoukat, and others actively manipulated the stock price of Olema, a publicly traded company focused on developing breast cancer treatment through a drug called OP-1250.

“From the spring of 2021, Saad Shoukat and Arham Shoukat began investing in Olema stock and encouraged others to invest in it.

“After purchasing substantial stock in Olema, Saad Shoukat, Arham Shoukat, and others accessed confidential information showing that OP-1250 was less effective than they had hoped.

“They then falsified the OP-1250 data that the co-conspirators had illegally accessed and publicly disseminated it in a manner that made it appear authentic and as though it originated from Olema.

“The release of the false data—which inflated the drug’s perceived efficacy—temporarily caused Olema’s stock price to rise, during which Saad Shoukat, Arham Shoukat, and others profited and avoided losses by selling large volumes of Olema shares.”

The Department of Justice also alleged that the defendants manipulated the stock price of Opiant, another publicly traded company involved in the development of treatments for opioid overdoses.

It added that the suspects were charged with offences including stock manipulation, conspiracy, and insider trading, among others, and noted that they face maximum prison sentences ranging from 20 to 25 years on each count if convicted.

Okonkwo is not the first Nigerian to face fraud-related charges in the United States.

PUNCH Metro had reported on December 4 that US authorities ordered the deportation of a Nigerian, Oluwaseun Adekoya, after he completed a 20-year prison sentence for his involvement in a $2m fraud scheme.

The US Department of Justice stated that Adekoya was sentenced after being found guilty of conspiracy to commit bank fraud, conspiracy to commit money laundering, and nine counts of aggravated identity theft following a three-week trial.