Billy Evans

In 2023, Evans and his partner Elizabeth Holmes allowed directors Nathan Fielder and Lance Oppenheim to film their lives closely during the 34 days before Holmes reported to prison, footage that became the documentary You Can See Everything. Oppenheim said Holmes and Evans pitched the project to A24; after Holmes goes to prison, the film shifts its focus toward Evans.⁠[1][2][3]

In January 2025, Haemanthus, the diagnostics start-up led by Evans as chief executive officer, secured its first patent, covering a small, box-like machine that uses lasers to process blood, saliva or urine samples. “Haemanthus” is Greek for “blood flower.”⁠[4][5]

In May 2025, Haemanthus came to public attention, and the company confirmed on X that its chief executive officer, Billy Evans, is Elizabeth Holmes’s partner. The company is developing medical tests that use light-detection technology to guide AI sensors, centered on Raman spectroscopy. Patent and incorporation filings show that some staff had previously worked with Evans at Luminar Technologies, a maker of autonomous-vehicle sensors.⁠[6][7]

Evans has raised millions of dollars for Haemanthus, mostly from family, friends and other supporters, and the company has sought $50 million to advance its research and development. Haemanthus said “This is not TheranosTheranosTheranos was a blood-testing company founded in 2003 by Elizabeth Holmes and based in Palo Alto, California, which offered retail testing with Walgreens and was valued at up to $9 billion before regulatory sanctions and criminal charges over alleged fraud in its technology and financial claims led to its dissolution in 2018.Open the full entry 2.0,” that “Skepticism is rational. We must clear a higher bar,” and that Holmes has “zero involvement” in the company.⁠[4][7]

On September 6, 2026, You Can See Everything premiered at the Telluride Film Festival. In a Q&A after the screening, Fielder said that near the end of the process Evans was trying to exert, “we felt,” a lot of control, which caused their communication “to break down a little bit.”⁠[1][8]

On October 15, 2026, a day before A24’s October 16 theatrical release of the documentary, the All-In podcast released an episode titled “Elizabeth Holmes’ Husband Billy Evans: The Trial, Prison & Nathan Fielder’s Documentary,” in which David Friedberg spoke with Evans about Holmes’s trial and life in prison, why the couple agreed to the documentary, restitution, and why his new company is not “Theranos 2.0.”⁠[9][1]

On the show, Evans said he had not yet seen the film, that Holmes “looks insane” in the trailer, and that he might think it was “the dumbest thing” he had ever done, but that “ultimately it’s our decision”; he said the film was meant to show Holmes in everyday settings.⁠[2][10]

Haemanthus: Official website: https://haemanthus.com/ (opens in a new window)⁠[11]