Latest Period
Q2 2026
Security Snapshot
MARSH & MCLENNAN COMPANIES, INC. - Common Stock (MRSH) Institutional Ownership
CUSIP: 571748102
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
1,490
Shares (Excl. Options)
438,225,862
Price
$166.67
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- Security type / class
- Equity / Common Stock
- Symbol
- MRSH on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 438,225,862
- Total 13F value
- $73,061,640,045
- Portfolio coverage rank
- 0.02%
- Share change
- +505,183
- Value change
- +$66,046,281
- Number of holders
- 1,490
- Shares outstanding
- 484,292,327
- SEC-reported price per share
- $182.18
- Insider filing price
- $182.18
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MRSH - MARSH & MCLENNAN COMPANIES, INC. - Common Stock is tracked under CUSIP 571748102.
- 1490 institutions reported positions in Q2 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 1,540 to 1,490 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $76,129,659,431 to $73,061,640,045.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1490 institutions filings for Q2 2026.
Security key
571748102
Latest holder period
Q2 2026
13F holders
1,490
13D/G owners
1
CIK / CUSIP context first
Open Q2 2026 holders
MRSH full holder history
MARSH & MCLENNAN COMPANIES, INC. SEC filings
MARSH & MCLENNAN COMPANIES, INC. company facts
MARSH & MCLENNAN COMPANIES, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 571748102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
MRSH
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 7.5% | $6,221,420,700 | 36,418,783 | Vanguard Capital Management | 31 Mar 2026 |
As of 30 Jun 2026, 1,490 institutional investors reported holding 438,225,862 shares of MARSH & MCLENNAN COMPANIES, INC. - Common Stock (MRSH). This represents 90% of the company’s total 484,292,327 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
57%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8.2% | 39,502,046 | -6.1% | 0.1% | $6,583,805,966 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 31,472,575 | +0.02% | 0.11% | $5,245,534,076 |
| STATE STREET CORP | 4.6% | 22,401,676 | +1.5% | 0.11% | $3,733,687,339 |
| Capital World Investors | 3.7% | 18,122,340 | +0.85% | 0.36% | $3,020,458,543 |
| WELLINGTON MANAGEMENT GROUP LLP | 3.5% | 16,975,238 | -2.3% | 0.49% | $2,829,262,918 |
| Capital International Investors | 3.2% | 15,729,457 | +0.1% | 0.54% | $2,621,642,741 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.8% | 13,510,274 | +0.79% | 0.12% | $2,250,034,870 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.8% | 13,438,662 | +22% | 0.22% | $2,239,823,000 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.6% | 12,570,512 | +1.1% | 0.09% | $2,095,127,235 |
| Capital Research Global Investors | 2.3% | 10,973,649 | -2.9% | 0.26% | $1,828,982,920 |
| HARRIS ASSOCIATES L P | 1.8% | 8,687,496 | +68% | 1.9% | $1,447,944,972 |
| Artisan Partners Limited Partnership | 1.5% | 7,269,246 | +49% | 2% | $1,211,565,231 |
| FMR LLC | 1.4% | 6,954,123 | -32% | 0.05% | $1,159,043,452 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.3% | 6,507,415 | -21% | 0.37% | $1,088,671,762 |
| MORGAN STANLEY | 1.3% | 6,314,085 | -2.5% | 0.06% | $1,052,368,885 |
| NORGES BANK | 1.3% | 6,255,525 | 0.1% | $1,042,608,352 | |
| AMERIPRISE FINANCIAL INC | 1.1% | 5,535,138 | +0.85% | 0.19% | $922,146,161 |
| NORTHERN TRUST CORP | 1% | 4,888,165 | -1.5% | 0.09% | $814,710,461 |
| JPMORGAN CHASE & CO | 0.98% | 4,730,329 | -22% | 0.05% | $788,593,335 |
| Clearbridge Investments, LLC | 0.97% | 4,705,966 | -27% | 0.65% | $784,316,723 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.95% | 4,597,647 | -11% | 0.14% | $766,289,825 |
| Invesco Ltd. | 0.89% | 4,305,773 | +11% | 0.06% | $717,643,133 |
| GOLDMAN SACHS GROUP INC | 0.87% | 4,228,626 | +15% | 0.07% | $704,785,161 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.86% | 4,170,110 | +21% | 0.31% | $695,032,234 |
| DEUTSCHE BANK AG\ | 0.85% | 4,113,644 | +11% | 0.2% | $685,621,045 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 438,225,862 | $73,061,640,045 | +$66,046,281 | $166.67 | 1,490 |
| 2026 Q1 | 438,784,741 | $76,129,659,431 | -$104,142,245 | $173.45 | 1,540 |
| 2025 Q4 | 435,360,938 | $80,796,984,355 | +$275,601,031 | $185.52 | 1,579 |
| 2025 Q3 | 431,472,737 | $86,923,121,602 | -$2,932,558,673 | $201.53 | 1,562 |
| 2025 Q2 | 443,913,248 | $97,006,607,827 | +$2,056,655,478 | $218.64 | 1,588 |
| 2025 Q1 | 436,288,736 | $106,420,973,259 | -$1,235,793,076 | $244.03 | 1,603 |
| 2024 Q4 | 441,936,952 | $93,853,217,569 | +$1,307,524,802 | $212.41 | 1,559 |
| 2024 Q3 | 433,771,697 | $96,754,190,914 | -$615,368,956 | $223.09 | 1,514 |
| 2024 Q2 | 436,384,750 | $91,942,585,382 | +$588,780,622 | $210.72 | 1,463 |
| 2024 Q1 | 434,979,809 | $89,543,834,860 | +$315,320,498 | $205.98 | 1,433 |
| 2023 Q4 | 433,473,819 | $82,114,440,826 | +$435,867,404 | $189.47 | 1,364 |
| 2023 Q3 | 430,384,847 | $81,908,148,143 | -$630,419,098 | $190.30 | 1,281 |
| 2023 Q2 | 433,436,077 | $81,400,392,643 | +$109,666,681 | $188.08 | 1,243 |
| 2023 Q1 | 432,719,577 | $72,038,999,238 | -$631,376,312 | $166.55 | 1,209 |
| 2022 Q4 | 437,002,008 | $72,326,569,045 | -$9,729,563 | $165.48 | 1,210 |
| 2022 Q3 | 438,273,180 | $65,461,867,168 | -$1,398,337,272 | $149.29 | 1,143 |
| 2022 Q2 | 442,000,526 | $68,597,268,124 | +$534,576,212 | $155.25 | 1,137 |
| 2022 Q1 | 441,321,997 | $75,161,810,468 | -$945,736,948 | $170.42 | 1,138 |
| 2021 Q4 | 446,141,727 | $77,470,917,420 | -$518,123,273 | $173.82 | 1,160 |
| 2021 Q3 | 448,940,415 | $67,972,529,401 | -$685,623,362 | $151.43 | 1,060 |
| 2021 Q2 | 452,120,809 | $63,575,646,118 | +$391,901,717 | $140.68 | 988 |
| 2021 Q1 | 448,747,076 | $54,641,979,623 | +$636,913,367 | $121.80 | 965 |
| 2020 Q4 | 442,444,348 | $51,732,629,265 | -$200,342,278 | $117.00 | 959 |
| 2020 Q3 | 444,592,166 | $50,965,374,243 | -$156,170,291 | $114.70 | 929 |
| 2020 Q2 | 445,174,719 | $47,782,313,698 | +$66,939,460 | $107.37 | 899 |