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AI brief of an SEC Form 8-K · Marsh McLennan (MRSH)

Marsh & McLennan names Nick Studer CEO of Marsh Risk; Martin South becomes Chief Client Officer

Neutral Impact 3 of 5 leadership Written later

Marsh & McLennan announced that Nick Studer, currently CEO of Oliver Wyman and Marsh Management Consulting, will succeed Martin South as President and CEO of Marsh Risk, effective April 1, 2026. South will become Senior Vice President and Chief Client Officer of the company, with both reporting to CEO John Doyle. The filing also sets out South's new target bonus of $1,500,000 and long-term incentive target of $1,750,000, plus severance protection, which matter to shareholders as compensation costs for a senior executive.

Key points

  • Nick Studer succeeds Martin South as President and CEO of Marsh Risk, effective April 1, 2026
  • Martin South becomes Senior Vice President and Chief Client Officer of the company, effective April 1, 2026
  • South's new target annual bonus is $1,500,000 from the 2026 performance year; long-term incentive target is $1,750,000 from the 2027 award
  • Marsh expects to announce a new CEO of Oliver Wyman and Marsh Management Consulting by April 1

The filing

CompanyMarsh McLennan (MRSH)
Form8-K, current report
Filed with the SECMar 10, 2026, 8:34 AM ET
Accession number0000062709-26-000071

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:21 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on March 10, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.