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MRSH in the 13F filings

Marsh & Mclennan Cos Inc · CUSIP 571748102

Sector · InsuranceTheme · Financial services· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 2 Aug 2024
Managers listing it
26
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q1 2024 and Q2 2024; 23 listed it in both
Shares listed
86,857,036
combined, among listed positions
Reported value
$18.3bn
combined, at the quarter end

Among the 94 comparable managers: 17 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing MRSH in Q2 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

26 of 26 holders

ActionFiling
Fidelity (FMR LLC)20,926,925$4.4bn0.28%Added+1,711,8015 Nov 2026 (the filing on sec.gov)
Capital World Investors17,672,247$3.7bn0.61%Added+451,65013 Aug 2024 (the filing on sec.gov)
MFS Investment Management11,069,159$2.3bn0.72%Trimmed-195,6939 Aug 2024 (the filing on sec.gov)
T. Rowe Price Associates Inc10,582,471$2.2bn0.27%Trimmed-41,60214 Aug 2024 (the filing on sec.gov)
Wellington Management Group LLP9,094,262$1.9bn0.34%Trimmed-2,783,00914 Aug 2024 (the filing on sec.gov)
Artisan Partners LP3,450,272$727m1.09%Added+1,89812 Aug 2024 (the filing on sec.gov)
Capital Research Global Investors2,674,606$564m0.12%Added+412,59613 Aug 2024 (the filing on sec.gov)
Invesco Ltd2,446,585$516m0.11%Added+56,62413 Aug 2024 (the filing on sec.gov)
Janus Henderson Group Ltd2,189,737$461m0.25%Added+47,33714 Aug 2024 (the filing on sec.gov)
AllianceBernstein LP1,367,293$288m0.10%Trimmed-17,12614 Aug 2024 (the filing on sec.gov)
Acadian Asset Management LLC1,159,536$244m0.75%Trimmed-105,2596 Aug 2024 (the filing on sec.gov)
Voloridge Investment Management LLC904,686$191m0.71%Trimmed-92,85914 Aug 2024 (the filing on sec.gov)
Markel Group Inc706,500$149m1.46%Added+12,5002 Aug 2024 (the filing on sec.gov)
Woodline Partners LP585,204$123m1.18%Newnew14 Aug 2024 (the filing on sec.gov)
Balyasny Asset Management LLC496,715$105m0.18%Added+148,38714 Aug 2024 (the filing on sec.gov)
Renaissance Technologies LLC339,600$72m0.12%Added+59,5819 Aug 2024 (the filing on sec.gov)
AQR Capital Management LLC335,728$71m0.11%Added+7,51514 Aug 2024 (the filing on sec.gov)
Verition Fund Management LLC278,547$59m0.32%Added+95,03714 Aug 2024 (the filing on sec.gov)
Two Sigma Investments LP212,750$45m0.10%Added+132,23714 Aug 2024 (the filing on sec.gov)
Marshall Wace LLP99,100$21munder 0.1%Newnew14 Aug 2024 (the filing on sec.gov)
Tudor Investment Corp91,510$19m0.10%Added+46,52114 Aug 2024 (the filing on sec.gov)
Man Group PLC86,223$18munder 0.1%Trimmed-41,86414 Aug 2024 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC36,498$7.7munder 0.1%Addedn.a.14 Aug 2024 (the filing on sec.gov)
Brevan Howard Capital Management LP22,490$4.7munder 0.1%Added+18,59314 Aug 2024 (the filing on sec.gov)
GAMCO Investors Inc20,509$4.3munder 0.1%Trimmed-65013 Aug 2024 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2024 to Q2 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
28 in Q3 2024 to 24 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MRSH by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201315$6.2bnn.a.n.a.
Q3 201312$6.8bnn.a.n.a.
Q4 201313$7.3bnn.a.n.a.
Q1 201417$7.5bnn.a.n.a.
Q2 201411$7.7bnn.a.n.a.
Q3 201417$8.0bnn.a.n.a.
Q4 201419$8.6bnn.a.n.a.
Q1 201517$8.3bnn.a.n.a.
Q2 201520$8.6bnn.a.n.a.
Q3 201521$8.0bnn.a.n.a.
Q4 201519$8.8bnn.a.n.a.
Q1 201619$9.7bnn.a.n.a.
Q2 201616$10.8bnn.a.n.a.
Q3 201620$9.4bnn.a.n.a.
Q4 201627$8.7bnn.a.n.a.
Q1 201724$9.4bnn.a.n.a.
Q2 201723$9.7bnn.a.n.a.
Q3 201717$10.3bnn.a.n.a.
Q4 201721$9.8bnn.a.n.a.
Q1 201819$10.0bnn.a.n.a.
Q2 201816$9.9bnn.a.n.a.
Q3 201816$9.0bnn.a.n.a.
Q4 201821$8.9bnn.a.n.a.
Q1 201923$10.2bnn.a.n.a.
Q2 201923$11.0bnn.a.n.a.
Q3 201918$11.5bnn.a.n.a.
Q4 201920$13.1bnn.a.n.a.
Q1 202023$9.8bnn.a.n.a.
Q2 202020$11.8bnn.a.n.a.
Q3 202021$12.5bnn.a.n.a.
Q4 202025$13.5bnn.a.n.a.
Q1 202123$14.2bnn.a.n.a.
Q2 202125$16.2bnn.a.n.a.
Q3 202126$16.5bnn.a.n.a.
Q4 202127$17.9bnn.a.n.a.
Q1 202226$17.2bnn.a.n.a.
Q2 202225$15.2bnn.a.n.a.
Q3 202228$13.6bnn.a.n.a.
Q4 202227$14.6bnn.a.n.a.
Q1 202330$14.8bnn.a.n.a.
Q2 202327$16.4bnn.a.n.a.
Q3 202327$16.5bnn.a.n.a.
Q4 202321$16.5bn147
Q1 202425$17.8bn1511
Q2 202426$18.3bn179
Q3 202428$19.2bn1514
Q4 202430$18.5bn1712
Q1 202525$22.7bn1016
Q2 202531$21.5bn2110
Q3 202530$19.9bn1712
Q4 202530$18.2bn3014
Q1 202623$18.4bn1627
Q2 202624$17.9bn2318

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MRSH and V →MRSH and AXP →MRSH and BAC →Choose a stock to compare with MRSH →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MRSH, latest filings →Back to the 13F Explorer →