Two Sigma explores stake sale amid founders’ governance dispute

Two Sigma Investments is contemplating the sale of a minority stake to an outside investor in order to address a long-standing governance issue between its co-founders, John Overdeck and David Siegel, according to Bloomberg. The New York-based company, which oversees about $85 billion in assets, has held initial talks with potential investors, including a Middle Eastern entity and a US pension fund.

The proposed deal would introduce a third shareholder, capable of resolving disputes between Overdeck and Siegel, who each possess roughly half of the company. It is believed that an existing limited partner may be interested in purchasing the stake, though the negotiations are still in their infancy and could take 12 to 18 months to finalize.

The dispute has frequently impeded decision-making related to hiring, pay, and senior leadership appointments, with four disputes being referred to arbitration. The founders formally relinquished their roles as co-CEOs in 2024, appointing deputies to manage the firm. However, additional personnel changes have transpired, with Scott Hoffman exiting earlier this year due to governance issues and his replacement, Seth Platt, also planning to leave.

The ownership dispute has been further complicated by Overdeck's ongoing divorce, in which his spouse is demanding a significant share of his stake, valued at $6.2 billion by the wife. Notwithstanding the governance ambiguity, Two Sigma has persistently attracted investment, with its assets reaching a record level. The firm's Absolute Return Enhanced Fund delivered 16% in the first nine months of 2026.

A minority sale would join a growing trend in the hedge fund sector, encompassing Millennium Management's $2 billion deal with an investor group in 2025 and Verition Fund Management's stake sale to Affiliated Managers Group earlier that year.