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

Marsh & McLennan appoints Peter Harrison to its Board of Directors

Neutral Impact 2 of 5 leadership Written later

Marsh & McLennan Companies appointed Peter Harrison, age 59, as an independent director effective February 25, 2026, bringing the Board to 13 directors. The filing says his committee assignments have not yet been determined and will be disclosed in the 2026 proxy statement, and it does not describe any financial impact.

Key points

  • Peter Harrison appointed as an independent director effective February 25, 2026
  • Board now consists of 13 directors, per the company's press release
  • Committee assignments not yet determined; expected in the 2026 definitive proxy statement
  • Compensation as a non-management director follows the arrangements described in a prior 10-Q exhibit

The filing

CompanyMarsh McLennan (MRSH)
Form8-K, current report
Filed with the SECFeb 25, 2026, 4:02 PM ET
Accession number0000062709-26-000035

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:21 AM ET, from the text of the filing and its press-release exhibits 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 February 25, 2026.

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