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Of the 18 tracked institutions holding MRSH, 12 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +1.0pt. It's a gauge of who owns the name, not just how many.
Among the 18 tracked institutional investors we monitor, MRSH (MARSH & MCLENNAN COS INC) is held with a combined value of $30.33B across 171,641,401 shares. The largest holder is VANGUARD GROUP INC with a position worth $8.64B (0.13% of their portfolio). 2 funds opened new positions in the most recent quarter. 8 funds increased their holdings. 8 funds reduced their position.
Total Institutional Value
$30.33B
Total Shares Held
171,641,401
Institutional Holders
18
% of Shares Outstanding
35.6%
of 481.79M shares · SEC 2026-04-13
Days to Cover
2.3-7.7%
6.74M shares short · FINRA 2026-06-30
Tracked 13F institutions hold 35.6% of MRSH's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-13), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
1
$2.11M
Total Transactions
1
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Jul 23, 2026 | Lloyd M Yates | S | Sale | 12,000 | $2.11M |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $8.64B | 0.13% | +0.8% |
| 2 | BlackRock, Inc. | $7.30B | 0.13% | +4.0% |
| 3 | STATE STREET CORP | $3.83B | 0.13% | +0.9% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | $3.01B | 0.56% | +8.6% |
| 5 | Capital Research Global Investors | $1.96B | 0.30% | +41.5% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.90B | 0.22% | +19.1% |
| 7 | FMR LLC | $1.77B | 0.09% | -33.1% |
| 8 | HARRIS ASSOCIATES L P | $896.58M | 1.20% | New |
| 9 | AQR CAPITAL MANAGEMENT LLC | $637.25M | 0.29% | +148.6% |
| 10 | MARKEL GROUP INC. | $132.43M | 1.11% | +0.2% |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Sell | Mar 27, 2026 |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of MRSH with a position worth $8.64B, representing 0.13% of their portfolio. In total, 18 institutional investors hold MRSH with a combined value of $30.33B.
In the most recent quarter, 2 funds opened a new position in MRSH. Additionally, 8 increased their holdings and 8 reduced their positions.
Institutional investors hold $30.33B worth of MRSH stock across 18 positions. The largest institutional holder is VANGUARD GROUP INC with $8.64B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For MRSH, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their MRSH positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$180.74
2026-07-24
YTD
-0.9%
43% of 52-week range
