Now this is rich, in many senses of the word. UHG’s current CEO and chair, Stephen Hemsley, through his investment company, holds stakes in companies competitive with UnitedHealth’s broad scope of healthcare businesses. Mr. Hemsley founded Cloverfields Capital Group LP in 2019, while he was chairman of UHG’s board but no longer CEO, which ended in 2017. According to the Wall Street Journal report, Cloverfields not only cloaked investments through affiliated entities in several early-stage healthcare companies: Claritas, Monogram Health, Nexben, and Solera Health–but also did not disclose Mr. Hemsley’s role in written communications nor in public announcements.
There’s nothing unusual here, as board members have other businesses or work elsewhere, and investment groups routinely form acquisition entities. What is unusual is that Mr. Hemsley never disclosed these interests as part of UnitedHealth’s disclosures for board members, nor, when reassuming the CEO position last May after Sir Andrew Witty’s resignation. For instance, Humana discloses board chairman Kurt Hilzinger’s role at Court Square, a private-equity firm that invests in healthcare companies. Court Square lists the names of the healthcare companies in which it has invested.
UnitedHealth’s statement to the WSJ is interesting indeed. FTA:
In response to questions from the Journal, UnitedHealth said Cloverfields is a family office as well as an investment adviser, and that Hemsley “maintains a diversified portfolio of public and private investments, some of which are in the health care sector.” In the “vast majority” of cases, the company said, he owns 5% or less of these healthcare companies, and he doesn’t have a controlling interest in any of them.
After Hemsley resumed his CEO role last May, the company said, he “transferred all his personal ownership interests in health care-related companies to a newly established trust” and recused himself from corporate decisions related to those interests. It said Hemsley is prohibited from participating in decisions made by the trust’s independent trustees, which “aligns with established models for avoiding potential conflicts of interest.”
UnitedHealth hasn’t publicly disclosed anything about the private healthcare investments tied to Hemsley, or about the trust. It didn’t respond to a request to share trust documents or a question about whether the trust is “blind,” which would prevent Hemsley from knowing which assets were being bought or sold. (Editor’s emphasis)
[later]“Mr. Hemsley continues to comply fully with UnitedHealth Group’s conflict of interest and trading policies, as well as all applicable SEC and other regulatory requirements,” UnitedHealth said in the statement.
UHG is, as expected, pedaling very quickly to cover the non-disclosure of Mr. Hemsley’s interests as board chair. But the fact that Cloverfields is not an independent investment entity but acts as a family office makes this worse, not better. “Vast majority” of cases below 5%–what is above 5%?
UHG is also in the VC business through Optum Ventures, which has invested in 60+ small healthcare companies between 2018 through 2025. This is another conflict.
It didn’t start with Cloverfields. Mr. Hemsley invested $10 million for a 1.6% stake in the Center for Autism and Related Disorders (CARD). Despite the name, it is a for-profit company and at that time was owned by Blackstone. It provides autism therapy through clinics, modeled on Applied Behavior Analysis (ABA). UnitedHealth in 2017, while he was CEO, extended commercial coverage of autism services and still does business with CARD. The company filed for Chapter 11 bankruptcy reorganization in June 2023 and now is privately owned by the founder and her business partner.
Conclusion: The answer is obvious–that every Cloverfields healthcare investment in which Mr. Hemsley or his family/office have an interest should be 1) fully disclosed, and 2) placed in a blind trust until he is no longer CEO and board chairman. Then he can do as he pleases. Not only this Editor’s opinion, but a legal one included in the WSJ article.
Even more of an argument for breaking up UnitedHealth Group. This Editor’s take and two others. A payer should not be a ‘black box’ that no one really understands or manages. Wasn’t Change Healthcare a hard enough lesson?



















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