Silicon Valley tends to tolerate a certain amount of founder hyperbole when pitching investors, often dismissing it as part of selling a vision. But some choices cross the line and can lead to jail time for founders and scandal for their investors.
An example of this is Joseph Sanberg, whose once high-flying fintech startup Aspiration Partners was backed by a number of tech celebrities, including former Microsoft boss and current Clippers owner Steve Ballmer. In August 2025, Sanberg pleaded guilty to two counts of wire fraud and defrauding multiple investors and lenders, the U.S. Department of Justice said in a news release. Each charge carries a maximum sentence of 20 years in prison.
Ahead of the sentencing, which is scheduled for Monday, the victims were invited to describe their experience with Sanberg to the judge. Ballmer did it and publicly. Ballmer’s lawyers said in the letter that he has lost money, been defamed and that the NBA is investigating allegations stemming from the association.
Sanberg co-founded the green fintech startup Aspiration Partners, which offered what it called sustainable banking services such as credit cards and investment products that avoided fossil fuels. The startup promised to “automatically plant trees with every card purchase.” In 2021, it announced plans to go public via a SPAC merger valued at $2.3 billion, though that transaction never took place.
The DOJ alleged that Aspiration booked and recognized revenue from entities owned by Sanberg that made the company appear as if it had a steady stream of customers and revenue that it actually did not. The agency further alleged that he defrauded investors by showing them a fabricated letter from Aspiration’s audit committee that said the company had $250 million in cash and equivalents when it had less than $1 million. The DOJ alleged that Sanberg, along with a board member who also pleaded guilty, falsified financial records to obtain $145 million in loans.
Sharing his letter on X, asking the judge to consider the harm done to him in the sentencing, Ballmer wrote: “I was cheated and feel like a fool. Everyone who believed in Aspiration, including employees, customers and investors, was also cheated. Everyone is still counting the losses.”
The letter says Ballmer invested a total of $60 million in the company and lost it all. Ballmer was not only an investor, but had contracted with Aspiration to provide carbon offsetting programs for the Clippers and its stadium. Aspiration also became a major Clippers sponsor.
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The billionaire said in the letter that not only did he lose this money, his reputation was negatively affected. He used the letter to deny the reporting of a multi-part series by the famous sports podcast Pablo Torre Finds Out that delved into the relationship between the Clippers and Aspiration. The podcast made allegations that Aspiration helped circumvent the salary cap for a star Clippers player. Ballmer’s lawyers called those allegations “misrepresentations or willful disregard of the facts,” in the letter.
Ballmer’s letter also said that as a result of the association with this company, the podcast and other public attention to it, he has been named in lawsuits. Meanwhile, the NBA said in its own letter about Sanberg’s sentencing that it is investigating the salary cap allegations and Sanberg has provided evidence, ESPN reported.
While the basketball world is involved in all of these downstream developments, the message founders can take from it is clear: If you fabricate financial documents to raise capital, the result will most likely be jail time.
Ballmer Group did not respond to our request for comment.
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