Former Pump.fun Dev Sentenced to Six Years in Prison for $2 Million Solana Fraud

Canadian national Jarett Dunn was sentenced to six years in prison by a London judge on Thursday, Wood Green Crown Court told Decrypt. He had previously pleaded guilty to fraud by abuse of position and transfer of criminal property.

The former Pump.fun employee had already spent 308 days on tag, the Court said, 154 of which will count towards his sentence. He had also spent approximately five months in prison on remand, which typically automatically counts towards an individual’s sentence.

The sentencing comes more than a year after he siphoned an estimated $2 million worth of Solana (SOL) from his then-employer Pump.fun—a now-hugely popular meme coin platform.

Dunn, interestingly, didn’t take the money for himself but rather distributed the funds to thousands of random addresses. He then immediately admitted to the crime on social media. As such, the Canadian gained a cult-like following, with fans branding him a “crypto Robin Hood.”

Dunn’s path to sentencing has been a rocky one, with several dates set, delayed, and adjourned. This included Dunn attempting to frame the attack as a whistleblower move, claiming that Pump.fun was a malicious site and that he was trying to warn people about it. However, with his sentence, it appears the judge wasn't too sympathetic to this argument.

Pump.fun is a platform that allows anyone to create a crypto token in seconds, after filling out a short form. Dunn had been working as a senior developer for Pump.fun for six weeks before the incident, during which the platform was popular but still in its infancy. At the time, Pump.fun had a lifetime revenue of $43.9 million, according to Dune data—a tally that has since surged to a dizzying $927.2 million.

Mark Kelly, a friend of Dunn's, was in attendance and called the verdict “depressing.” Kelly told Decrypt that prosecutors dismissed the whistleblower framing as "post-arrest spin." He added that while he thought Dunn’s lawyer was "appalling," Dunn ultimately gave the prosecution an “easy ride” with his confessions on social media.

“Everybody be cool, this is a robbery... I'm about to change the course of history. [And] then rot in jail,” Dunn wrote on X, within minutes of the attack. “Am I sane? Nah. Am I well? [Very] much not."

He then joined an X Spaces in which he said he wanted to "kill" Pump.fun "because "it's something to do." He further alleged that "it's inadvertently hurt people for a long time." Kelly added that the judge gave this "full weight" during the sentencing.

Four days after the attack, Dunn was arrested at a hotel in London, not far from the WeWork where Pump.fun was operating from—and where Dunn was situated during the attack. Immediately, Dunn was determined unfit to face a police interview and was hospitalized for two weeks to improve his mental health, after spending months off his medication.

Dunn then pleaded guilty in August 2024, before attempting to withdraw that plea during his sentencing two months later. This sudden change of heart led to his legal team quitting the case.

The Canadian then spent months finding a new legal team while under police surveillance. He was then imprisoned for breaching his bail conditions in July 2025, before pleading guilty again in August. Since then, he has awaited sentencing from behind bars in HMP Pentonville while communicating with his followers via a so-called “intern” running his X account.

On Thursday, Dunn was sentenced to two six-year prison sentences to be served concurrently for fraud and transfer of criminal property.

He has yet to make a statement via his intern, but Dunn previously said he was hoping to be immediately deported to Canada. But that wasn’t the case, and Dunn remains in custody in London.