---
title: "CEO/Chair Leadership: When an… | Insights — Lyoen & Partners"
url: https://lyoenandpartners.com/insights/ceochair-leadership-when-and-why-boards-combine-or-separate-the-roles
description: "A Conference Board report posted on the Harvard Law School Forum examines CEO/chair leadership structures across S&P 500 and Russell 3000 companies, findi…"
lang: en-US
---

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Wednesday, May 13, 2026succession

# CEO/Chair Leadership: When and Why Boards Combine or Separate the Roles

A Conference Board report posted on the Harvard Law School Forum examines CEO/chair leadership structures across S&P 500 and Russell 3000 companies, finding that in 2025 the current CEO served as chair at 42% of S&P 500 companies, and that combination disclosures increasingly emphasize board-management alignment and strategic execution rather than CEO expertise alone. It underscores that leadership structure is context-dependent, and that the quality of independent oversight — including how agendas are set and how the lead independent director role is defined — matters more than the formal title split. For SEA founders and scale-up CEOs weighing whether to hold or separate the chair role, this data-rich piece offers practical benchmarks and disclosure guidance to manage investor and stakeholder expectations.

Sources

Harvard Law School Forum on Corporate Governance (https://corpgov.law.harvard.edu/2026/05/13/ceo-chair-leadership-when-and-why-boards-combine-or-separate-the-roles/)

Topic: Boardroom Performance: https://lyoenandpartners.com/insights/topic/boardroom-performance

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