Security key
571748102
MARSH & MCLENNAN COMPANIES, INC. - Common Stock (MRSH)
CUSIP: 571748102
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 438,225,901
- Total 13F value
- $73,061,636,070
- Share change
- +505,196
- Put/Call ratio
- 32%
- SEC-reported price per share
- $166.67
- Number of holders
- 1,491
- Value change
- +$66,048,448
- Number of buys
- 599
- Number of sells
- 826
- Shares outstanding
- 484,292,327
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
1,491
Top holders
10
MRSH full security history
Ownership snapshot
Full 13F holder table
MARSH & MCLENNAN COMPANIES, INC. SEC filings
MARSH & MCLENNAN COMPANIES, INC. company facts
Broader feeds
Ownership snapshot
Top reported holders of MRSH - MARSH & MCLENNAN COMPANIES, INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
01 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
Oscar Fanjul
0.01%
H. Edward Hanway
0.01%
Edward Francis Moynihan
0%
Judith Hartmann
0%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$6,221,420,700
36,418,783 shares
|
$0 | 31 Mar 2026 |
| Oscar Fanjul |
3/4/5
Director
|
0.01%
|
$9,774,326
43,986 shares
|
— | 15 May 2025 |
| H. Edward Hanway |
3/4/5
Director
|
0.01%
|
$6,394,702
36,868 shares
|
— | 01 Jun 2026 |
| Edward Francis Moynihan |
3/4/5
President & CEO, Oliver Wyman
|
0%
|
$1,582,037
9,121 shares
|
— | 01 Apr 2026 |
| Judith Hartmann |
3/4/5
Director
|
0%
|
$749,824
4,323 shares
|
— | 01 Jun 2026 |
| Peter Harrison |
3/4/5
Director
|
0%
|
$216,118
1,246 shares
|
— | 01 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1,491
Shares
438,225,901
Rows available
1,491
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1,541
Q2 2026 holders
1,491
Holder diff
-50
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|