A much-publicized partnership between Amazon, Berkshire Hathaway and JPMorgan Chase intended to try to lower health care costs is disbanding, according to CNBC.

Known as Haven, the news of its shuttering is a reflection of the difficulty outside entities face in trying to make a significant impact in the complex sector, one that has seen increasing consolidation over the past decade.

″The Haven team made good progress exploring a wide range of healthcare solutions, as well as piloting new ways to make primary care easier to access, insurance benefits simpler to understand and easier to use, and prescription drugs more affordable," a spokesperson told the outlet.

The companies intend to each retain a portion of Haven's 57 employees, CNBC reported, citing anonymous sources. The three behemoths also plan to "continue to collaborate informally to design programs tailored to address the specific needs of our individual employee populations and locations," the spokesperson added.

The writing was on the wall. Former CEO Atul Gawande, a noted surgeon and writer, departed in May, part of a string of executive departures.