Marsh & McLennan Companies, Inc.
MRSH- Exchange
- NYSE
- Industry
- Insurance Agents, Brokers & Service
- SEC CIK
- 0000062709
In the last 90 days, Marsh & McLennan Companies, Inc. insiders filed 0 open-market purchases and 6 sales; 1,506 institutions reported holding it in 13F filings for Q2 2026, worth $73.1B in total; superinvestors Harris Associates (Oakmark) and Markel Group hold it.
Superinvestors holding MRSH, Q2 2026
2 superinvestors report holding Marsh & McLennan Companies, Inc. on Form 13F, worth $1.58B in total. Weight is Marsh & McLennan Companies, Inc.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Harris Associates (Oakmark)Bill Nygren | 1.9% | 8,687,496 | $1.45B | Added+68.1% |
| Markel GroupTom Gayner | 1.0% | 763,500 | $127.3M | Unchanged |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of MRSH each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
2 superinvestors holding at quarter end
- Added
- Harris Associates (Oakmark) (+68.1%)
Q1 2026
2 superinvestors holding at quarter end
- New
- Harris Associates (Oakmark)
- Added
- Markel Group (+0.2%)
Q4 2025
1 superinvestor holding at quarter end
- Added
- Markel Group (+0.9%)
Q3 2025
1 superinvestor holding at quarter end
- Added
- Markel Group (+0.8%)
Q2 2025
1 superinvestor holding at quarter end
- Added
- Markel Group (+0.7%)
Q1 2025
1 superinvestor holding at quarter end
- Added
- Markel Group (+1.1%)
Q4 2024
1 superinvestor holding at quarter end
- Added
- Markel Group (+1.8%)
Q3 2024
1 superinvestor holding at quarter end
- Added
- Markel Group (+2.3%)
Q2 2024
1 superinvestor holding at quarter end
- Added
- Markel Group (+1.8%)
Q1 2024
1 superinvestor holding at quarter end
- Added
- Markel Group (+1.4%)
- Sold out
- Viking Global Investors
Q4 2023
2 superinvestors holding at quarter end
- New
- Viking Global Investors
- Added
- Markel Group (+1.8%)
- Sold out
- Maverick Capital
Q3 2023
2 superinvestors holding at quarter end
- Added
- Markel Group (+2.0%), Maverick Capital (+88.3%)
Q2 2023
2 superinvestors holding at quarter end
- Added
- Markel Group (+1.4%)
- Reduced
- Maverick Capital (−12.6%)
- Sold out
- Berkshire Hathaway, Viking Global Investors
Q1 2023
4 superinvestors holding at quarter end
- New
- Viking Global Investors, Maverick Capital
- Added
- Markel Group (+1.6%)
Q4 2022
2 superinvestors holding at quarter end
- Added
- Markel Group (+1.9%)
- Sold out
- Viking Global Investors
Q3 2022
3 superinvestors holding at quarter end
- Added
- Markel Group (+0.6%)
- Reduced
- Viking Global Investors (−64.4%)
Q2 2022
3 superinvestors holding at quarter end
- Added
- Viking Global Investors (+25.7%), Markel Group (+0.9%)
Q1 2022
3 superinvestors holding at quarter end
- Added
- Viking Global Investors (+78.4%), Markel Group (+1.5%)
Q4 2021
3 superinvestors holding at quarter end
- Added
- Viking Global Investors (+9.1%)
- Reduced
- Berkshire Hathaway (−85.2%)
Q3 2021
3 superinvestors holding at quarter end
- Reduced
- Berkshire Hathaway (−34.7%), Viking Global Investors (−43.8%)
Q2 2021
3 superinvestors holding at quarter end
- Reduced
- Berkshire Hathaway (−20.6%), Viking Global Investors (−1.2%)