Who Is Sunny Balwani, and What Crimes Did He and Elizabeth Holmes Commit?

After having already invested millions of dollars in Elizabeth Holmes’ healthcare startup, Theranos, Ramesh “Sunny” Balwani officially joined the company in 2009.  

As president and chief operating officer of the blood-testing startup, Balwani played a major role in managing Theranos as it expanded into a highly valued Silicon Valley company. He also maintained a long-term relationship with Holmes, who is 19 years his junior. 

Prosecutors later argued that Balwani and Holmes were part of a coordinated effort to deceive investors, physicians and patients about Theranos’ blood-testing technology. The allegations included misleading claims about the technology’s capabilities, reliability and business success.  

Unlike Holmes, who was convicted only on investor-related fraud charges, Balwani was convicted in 2022 on all 12 counts against him, including schemes to defraud both investors and patients. He received a federal prison sentence of 12 years and 11 months. Balwani and Holmes were also ordered to pay more than $452 million in restitution, to be contributed by either one of them or jointly.

Balwani was born into an upper-middle-class Sindi Hindu farming family in 1965 and is of West Pakistani descent. His family immigrated to the United States in the 1980s.  

Though Balwani started attending college at the University of Texas at Austin, he left school early to begin working. (He later earned his bachelor’s degree in 1997.)  

During the 1990s, Balwani worked in sales at Microsoft, and in 1999, he became president of startup website CommerceBid.com. He married Japanese artist Keiko Fujimoto, though it’s unclear exactly when. They divorced in 2002. 

Also in 2002, Balwani met Holmes. At the time, Holmes was an 18-year-old high school senior and Balwani was a 37-year-old businessman. They met in the Beijing dorms of a Stanford University Mandarin language immersion program in which they were both participating.  

Holmes was being bullied by classmates in the program, and after Balwani stepped in to comfort her, the two became friends. “Sunny, the lone adult among a group of college kids, had stepped in and come to her aid,” John Carreyrou writes in Bad Blood: Secrets and Lies in a Silicon Valley Startup. 

Holmes and Balwani became a couple in 2004, the same year that Holmes dropped out of Stanford to focus on the company that would become Theranos. In July 2005, Holmes moved into Balwani’s Palo Alto, Calif., condo, according to Bad Blood. They dated until 2016, per court documents. 

Holmes founded Theranos in 2003 as a startup focused on developing an easier new approach to blood testing. (The company was originally called Real-Time Cures before Holmes changed its name to Theranos.) Balwani officially joined in September 2009 as the company’s President and Chief Operating Officer, where he was responsible for software development, personnel and daily operations. 

Prosecutors showed that Balwani and Holmes told investors and patients that Theranos’s proprietary machines could perform various blood tests accurately from just a finger-prick sample. But at trial, the evidence showed that they knew the technology had and could perform only a limited number of tests. 

Balwani also participated in representations about Theranos’s technology, finances, commercial prospects and relationships with organizations like the Department of Defense. (In legal terms, a representation is a statement of fact made by one party to convince another party to take action, such as investing money or signing a contract.) Theranos projected more than $100 million in revenue in 2014 and about $1 billion in 2015, despite evidence that Balwani knew the company’s actual prospects were much lower. 

Balwani’s misdeeds also involved patients. Evidence showed that he helped promote Theranos’ blood-testing services even though he knew the company could not consistently produce accurate results for some of the tests. 

In 2022, following Balwani's conviction on all 12 counts levied against him, the court sentenced him to 155 months (12 years and 11 months) in prison, followed by supervised release. Holmes was sentenced to 135 months (11 years and 3 months) in federal prison plus supervised release. Balwani was convicted of more offenses than Holmes, but both were sentenced under the same guidelines.  

Holmes’ jury acquitted her of the patient-related fraud charges, and it could not reach unanimous verdicts on three additional investor-fraud counts. Balwani, however, was convicted on all 12 counts against him. Those included the investor-fraud conspiracy and six investor wire-fraud counts, as well as a separate count of conspiracy to defraud patients and four counts of wire fraud involving patients, to which he pleaded not guilty. 

In October 2026, the Supreme Court rejected to hear an appeal from Balwani. In his appeal, he maintained that jurors were denied potentially important context: a 2013 call with investors in which Holmes said Theranos’ technology might, but was not certain, to be deployed in U.S. military equipment. 

Balwani is currently serving his sentence at FCI Terminal Island prison in San Pedro, Calif.