Katherine Brennan

Companies

• Marsh & McLennan CompaniesGeneral counsel Mar 21, 2022 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Marsh & McLennan Companies MRSH7,330 shares²$1.4M at $189.76Sep 2, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 2, 2026Sold 1,197 shares at $187.90 of Marsh & McLennan Companies²
• Sep 2, 2026Exercised options 1,197 shares at $83.05 of Marsh & McLennan Companies²
• Feb 28, 2026Shares withheld for tax 3,855 shares at $186.74 of Marsh & McLennan Companies³
• Feb 28, 2026Exercised options 6,970 shares of Marsh & McLennan Companies³
• Feb 28, 2025Shares withheld for tax 1,282 shares at $233.74 of Marsh & McLennan Companies⁴
• Feb 28, 2025Exercised options 2,315 shares of Marsh & McLennan Companies⁴
• Feb 28, 2024Shares withheld for tax 1,968 shares at $202.99 of Marsh & McLennan Companies⁵
• Feb 28, 2024Exercised options 3,557 shares of Marsh & McLennan Companies⁵
• Feb 28, 2023Shares withheld for tax 1,975 shares at $162.83 of Marsh & McLennan Companies⁶
• Feb 28, 2023Exercised options 3,568 shares of Marsh & McLennan Companies⁶

Trade performance

Returns are price-only (no dividends), measured from the trade date.