D&O Risks In Up‑C Dilution Claims

The Umbrella Partnership–C Corporation structure—better known as the “Up C”—has rapidly evolved from a niche tax efficient IPO structure to a mainstream vehicle used by pre-IPO insiders seeking liquidity while preserving partnership tax treatment.¹ Over the past decade, dozens of high-profile companies have gone public using an Up-C, with more arriving each year as private equity funds seek exit opportunities in a strengthening IPO market.²

But the same features that make Up-Cs economically attractive may create structurally recurring dilution issues, particularly when insiders influence the use of tax distributions or the flow of liquidity between the private operating partnership and the public corporation. As recent litigation demonstrates, these structural conflicts can produce fiduciary-duty claims against the public company’s directors and officers.³