Marc Harrison is stepping down as Intermountain Healthcare CEO

• It's also Utah's largest private employer, and its biggest health insurance provider.

What's happening: Harrison is leaving to run a "healthcare platform business" for the venture capital firm General Catalyst.

Who is he: Harrison has been considered a dynamic figure in the healthcare industry and was ranked No. 26 on Fortune Magazine's annual list of 50 of the "World's Greatest Leaders."

• He helped spearhead Civica Rx, a nonprofit Utah drug company that is challenging generic drug shortages and predatory pricing schemes.
• Harrison oversaw IHC's merger with Colorado-based SCL Health and helped acquire a major Nevada hospital system.
• Business Insider reported he's also responsible for pushing for doctor compensation to be more closely tied to patients' outcomes, rather than the volume of procedures or patients seen.

Flashback: Harrison was a vocal proponent of COVID prevention measures like masking.

• He had a form of blood cancer that left him immunocompromised — the same cancer Colin Powell had when he died from COVID.
• Moments after Harrison pleaded with Utahns to mask up in 2021, Gov. Spencer Cox scoffed at "extreme maskers," which led to a social media firestorm in defense of Harrison and others who are immunocompromised.
• Cox later walked back his comment.

What they're saying: "Marc has helped spur innovation across our organization during his six-year tenure. We are better today because of his outstanding leadership," said Mike Leavitt, chairman of Intermountain's board and former Utah governor.

What's next: Intermountain will name an interim CEO and search for Harrison's replacement this fall, according to a news statement.