Who owns MRSH
Institutions that file 13Fs hold 92% of the shares
Shares they hold, quarter on quarter
-0.3%
144 new, 440 added, 630 cut, 191 sold out
Top 10 holders
44%
of the shares institutions hold
A 13F lists the long positions of managers with more than $100M in US stocks. It shows the last day of a quarter and is filed up to 45 days later. Two managers can report the same shares, so totals can count some shares twice.
Institutional owners
The 25 biggest holders
| Holder | Shares | Value | % of company | From Mar 31, 2026 |
|---|---|---|---|---|
| BlackRock, Inc. | 39.50M | $6.6B | 8.31% | Reduced -6.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 31.47M | $5.2B | 6.62% | Held |
| STATE STREET CORP | 22.40M | $3.7B | 4.71% | Added +1.5% |
| Capital World Investors | 18.12M | $3.0B | 3.81% | Added +0.9% |
| WELLINGTON MANAGEMENT GROUP LLP | 16.98M | $2.8B | 3.57% | Reduced -2.3% |
| Capital International Investors | 15.73M | $2.6B | 3.31% | Held |
| GEODE CAPITAL MANAGEMENT, LLC | 13.51M | $2.3B | 2.84% | Added +0.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 13.44M | $2.2M | 2.83% | Added +22.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 12.57M | $2.1B | 2.64% | Added +1.1% |
| Capital Research Global Investors | 10.97M | $1.8B | 2.31% | Reduced -2.9% |
| HARRIS ASSOCIATES L P | 8.69M | $1.4B | 1.83% | Added +68.1% |
| Artisan Partners Limited Partnership | 7.27M | $1.2B | 1.53% | Added +49.1% |
| FMR LLC | 6.95M | $1.2B | 1.46% | Reduced -31.7% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 6.51M | $1.1B | 1.37% | Reduced -20.6% |
| MORGAN STANLEY | 6.31M | $1.1B | 1.33% | Reduced -2.5% |
| NORGES BANK | 6.26M | $1.0B | 1.32% | New |
| AMERIPRISE FINANCIAL INC | 5.54M | $922.1M | 1.16% | Added +0.8% |
| NORTHERN TRUST CORP | 4.89M | $814.7M | 1.03% | Reduced -1.5% |
| JPMORGAN CHASE & CO | 4.73M | $788.6M | 0.99% | Reduced -22.4% |
| Clearbridge Investments, LLC | 4.71M | $784.3M | 0.99% | Reduced -26.7% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 4.60M | $766.3M | 0.97% | Reduced -11.3% |
| Invesco Ltd. | 4.31M | $717.6M | 0.91% | Added +10.8% |
| GOLDMAN SACHS GROUP INC | 4.23M | $704.8M | 0.89% | Added +15.1% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 4.17M | $695.0M | 0.88% | Added +20.7% |
| DEUTSCHE BANK AG\ | 4.11M | $685.6M | 0.87% | Added +11.1% |
Show the other 15 holders
This quarter
Who bought and who sold the most shares
Bought the most shares
- NORGES BANK +6.26M, new
- EdgePoint Investment Group Inc. +3.82M, new
- HARRIS ASSOCIATES L P +3.52M
- PRICE T ROWE ASSOCIATES INC /MD/ +2.46M
- Artisan Partners Limited Partnership +2.39M
- PRIMECAP MANAGEMENT CO/CA/ +1.43M
- Assenagon Asset Management S.A. +1.15M
- National Pension Service +1.13M, new
- CANADA PENSION PLAN INVESTMENT BOARD +796K
- Beutel, Goodman & Co Ltd. +794K
Sold the most shares
- FMR LLC -3.23M
- BlackRock, Inc. -2.56M
- Clearbridge Investments, LLC -1.72M
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/ -1.69M
- Mawer Investment Management Ltd. -1.60M
- BANK OF AMERICA CORP /DE/ -1.48M
- JPMORGAN CHASE & CO -1.36M
- UBS Group AG -1.12M
- BNP PARIBAS FINANCIAL MARKETS -1.07M
- AQR CAPITAL MANAGEMENT LLC -1.07M
Superinvestors
Superinvestors holding MRSH
| Investor | Quarter | Shares | Value | % of portfolio | Last quarter |
|---|---|---|---|---|---|
| Bill Nygren Harris Associates (Oakmark) | Jun 30, 2026 | 8.69M | $1.4B | 1.94% | Added +68.1% |
| Tom Gayner Markel Group | Sep 30, 2026 | 764K | $130.4M | 1.10% | Held |
| Jensen Investment Jensen Investment Management | Sep 30, 2026 | 735K | $125.5M | 3.94% | Reduced -25.4% |
More than 5%
13D filings: owners who may push for change
No Schedule 13D about MRSH in the last year.