https://arstechnica.com/tech-policy/2021/11/theranos-duped-savvy-investor-blocked-contact-with-partners-holmes-jury-hears/

We've noticed a recurring theme in the criminal trial of Elizabeth Holmes: most of Theranos’ investors didn’t do their homework before writing a check. But yesterday, the jury heard from one who most definitely did.

Brian Grossman is chief investment officer and a managing partner for PFM Health Sciences, a San Francisco-based hedge fund that, as the name suggests, specializes in health care investments. Ultimately, his firm invested $96 million in Theranos, and that investment underpins one of the counts of wire fraud with which Holmes has been charged.