Former Theranos executive Ramesh “Sunny” Balwani remains in federal prison after the U.S. Supreme Court declined to hear his appeal in October 2026, leaving intact his convictions for defrauding investors and patients. Balwani, who served as president and chief operating officer of the blood-testing startup, is serving a 12-year-and-11-month sentence at FCI Terminal Island in San Pedro, California.
According to A&E, the court’s decision followed Balwani’s challenge to his 2022 convictions on all 12 counts against him. The case stemmed from allegations that he and Theranos founder Elizabeth Holmes misrepresented the capabilities of the company’s blood-testing technology, its financial prospects and its commercial relationships.
Prosecutors presented evidence that Theranos promoted machines capable of performing numerous blood tests using a small finger-prick sample, even though the technology could reliably perform only a limited range of tests. Evidence at trial also showed that Balwani helped promote testing services despite knowing that some results could be inaccurate.
The convictions covered a conspiracy to defraud investors, six investor-related wire fraud counts, a conspiracy to defraud patients and four wire fraud counts involving patients. Balwani pleaded not guilty to the charges.
In his appeal, Balwani argued that jurors had been denied potentially important context concerning a 2013 investor call. During that call, Holmes said Theranos technology might be deployed in U.S. military equipment but expressed uncertainty about whether that would happen, according to A&E’s account.
Balwani’s sentence followed the collapse of a company that had attracted substantial investment by promising to transform medical testing. Theranos projected revenue exceeding $100 million in 2014 and approximately $1 billion in 2015, although prosecutors presented evidence that Balwani knew the company’s actual commercial prospects were substantially weaker.
Holmes, who founded Theranos in 2003, received a federal prison sentence of 11 years and three months in 2022. Unlike Balwani, she was convicted of investor-related fraud but acquitted of patient-related fraud charges. Her jury also failed to reach unanimous verdicts on three additional investor-fraud counts.
Courts ordered Holmes and Balwani to pay more than $452 million in restitution, with the amount to be paid by either defendant or jointly. The order addressed losses associated with the fraud case against the former Theranos executives.
Balwani joined Theranos in September 2009 after investing millions of dollars in the company, according to A&E. As president and chief operating officer, he oversaw software development, personnel and daily operations while maintaining a relationship with Holmes that lasted until 2016, according to court documents cited by the outlet.
The pair first met in 2002 during a Stanford University Mandarin language immersion program in Beijing. Holmes was then an 18-year-old high school senior, while Balwani was a 37-year-old businessman. They began dating in 2004, the same year Holmes left Stanford to concentrate on building Theranos.
Balwani’s conviction was broader than Holmes’ because jurors found him guilty on all 12 counts brought against him. Both defendants were sentenced under the same federal sentencing guidelines, despite the differences in their convictions.




