Companies / Marsh & McLennan Companies, Inc. / Activity

Activity — Marsh & McLennan Companies, Inc.

419 moves.

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InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
Q1 2026
as of
Norges Bank
13F manager
ExitCommon stock$-1.56B-8.4M
-100.00%
0
high
Q4 2025
as of
Norges Bank
13F manager
AddCommon stock$495.16M+2.7M
+46.68%
8,386,530
1.76% of shares
high
Q1 2026
as of
AQR Capital Management, LLC
13F manager
AddCommon stock$380.89M+2.2M
+148.58%
3,673,987
0.77% of shares
high
Q2 2026
as of
Mawer Investment Management Ltd.
13F manager
TrimCommon stock$-339.09M-2.0M
-52.09%
1,871,159
0.39% of shares
high
Q1 2026
as of
Geode Capital Management, LLC
13F manager
AddCommon stock$304.94M+1.8M
+15.12%
13,404,172
2.81% of shares
high
Q1 2026
as of
Clearbridge Investments, LLC
13F manager
AddCommon stock$233.60M+1.3M
+26.53%
6,423,531
1.35% of shares
high
Q1 2026
as of
BNP Paribas Financial Markets
13F manager
AddCommon stock$195.30M+1.1M
+78.16%
2,566,547
0.54% of shares
high
Q1 2026
as of
Amundi
13F manager
TrimCommon stock$-184.86M-1.1M
-31.68%
2,298,833
0.48% of shares
high
Q1 2026
as of
Findlay Park Partners LLP
13F manager
ExitCommon stock$-164.46M-886K
-100.00%
0
high
Q4 2025
as of
Bank of America Corp /De
13F manager
TrimCommon stock$-163.82M-883K
-13.79%
5,522,563
1.16% of shares
high
Q2 2026
as of
BlackRock, Inc.
13F manager
TrimCommon stock$-157.15M-943K
-2.33%
39,502,046
8.28% of shares
high
Q1 2026
as of
Rhumbline Advisers
13F manager
AddCommon stock$156.23M+901K
+64061.74%
902,114
0.19% of shares
high
Q1 2026
as of
D. E. Shaw & Co., Inc.
13F manager
TrimCommon stock$-150.29M-866K
-33.38%
1,729,550
0.36% of shares
high
Q1 2024
as of
Barclays PLC
13F manager
AddCommon stock$147.96M+718K
+43.32%
2,376,331
0.50% of shares
high
Q4 2025
as of
Barclays PLC
13F manager
TrimCommon stock$-137.30M-740K
-33.60%
1,462,301
0.31% of shares
high
Q2 2023
as of
Barclays PLC
13F manager
AddCommon stock$135.82M+722K
+86.08%
1,561,112
0.33% of shares
high
Q3 2025
as of
Barclays PLC
13F manager
AddCommon stock$130.59M+648K
+41.69%
2,202,372
0.46% of shares
high
Q2 2026
as of
Deutsche Bank AG
13F manager
AddCommon stock$124.25M+745K
+22.13%
4,113,644
0.86% of shares
high
Q2 2025
as of
Barclays PLC
13F manager
TrimCommon stock$-123.34M-564K
-26.63%
1,554,385
0.33% of shares
high
Q1 2026
as of
Arrowstreet Capital, Limited Partnership
13F manager
AddCommon stock$120.99M+698K
+25.30%
3,454,586
0.72% of shares
high
Q1 2026
as of
Millennium Management LLC
13F manager
TrimCommon stock$-111.81M-645K
-88.96%
80,034
0.02% of shares
high
Q1 2026
as of
Jupiter Asset Management Ltd
13F manager
NewCommon stock$107.45M+622K
622,465
0.13% of shares
high
Q1 2026
as of
Two Sigma Investments, LP
13F manager
TrimCommon stock$-99.44M-573K
-45.87%
676,619
0.14% of shares
high
Q1 2025
as of
Barclays PLC
13F manager
TrimCommon stock$-93.75M-384K
-15.35%
2,118,514
0.44% of shares
high
Q2 2026
as of
State Street Corporation
13F manager
AddCommon stock$88.29M+530K
+2.42%
22,401,676
4.69% of shares
high
Q1 2026
as of
Marshall Wace, LLP
13F manager
AddCommon stock$87.18M+503K
+490.67%
605,053
0.13% of shares
high
Q1 2026
as of
CPPIB Crestone Peak Resources Canada Inc.
13F manager
AddCommon stock$86.22M+497K
+159.04%
809,639
0.17% of shares
high
Q1 2023
as of
Barclays PLC
13F manager
TrimCommon stock$-77.29M-464K
-35.61%
838,962
0.18% of shares
high
Q1 2026
as of
Adage Capital Partners Gp, L.L.C.
13F manager
NewCommon stock$61.34M+354K
353,661
0.07% of shares
high
Q1 2026
as of
Nordea Investment Management AB
13F manager
TrimCommon stock$-59.62M-343K
-67.61%
164,453
0.03% of shares
high
Q4 2024
as of
Barclays PLC
13F manager
AddCommon stock$56.29M+265K
+11.84%
2,502,691
0.52% of shares
high
Q1 2026
as of
Eminence Capital, LP
13F manager
NewCommon stock$55.57M+320K
320,386
0.07% of shares
high
Q1 2026
as of
Janus Henderson Group PLC
13F manager
TrimCommon stock$-39.13M-226K
-58.91%
157,363
0.03% of shares
medium
Q1 2026
as of
Polar Asset Management Partners Inc.
13F manager
ExitCommon stock$-37.10M-200K
-100.00%
0
medium
Q1 2026
as of
Zurcher Kantonalbank (Zurich Cantonalbank)
13F manager
TrimCommon stock$-36.84M-212K
-47.08%
238,723
0.05% of shares
medium
Q1 2026
as of
Capital Fund Management S.A.
13F manager
AddCommon stock$33.15M+191K
+144.92%
323,016
0.07% of shares
medium
Q1 2026
as of
Prudential Financial Inc
13F manager
AddCommon stock$28.43M+164K
+37.43%
601,893
0.13% of shares
medium
Q2 2026
as of
Jensen Investment Management Inc
13F manager
TrimCommon stock$-27.72M-166K
-14.45%
984,904
0.21% of shares
medium
Q2 2024
as of
Barclays PLC
13F manager
TrimCommon stock$-27.06M-128K
-5.40%
2,247,910
0.47% of shares
medium
Q4 2023
as of
Barclays PLC
13F manager
AddCommon stock$26.70M+141K
+9.29%
1,658,015
0.35% of shares
medium
Q1 2026
as of
AllianceBernstein L.P.
13F manager
AddCommon stock$26.35M+142K
+7.72%
1,981,282
0.42% of shares
medium
Q4 2025
as of
Banco Santander, S.A.
13F manager
NewCommon stock$25.91M+140K
139,648
0.03% of shares
medium
Q1 2026
as of
Royal Bank of Canada
13F manager
AddCommon stock$25.79M+149K
+4.69%
3,316,579
0.69% of shares
medium
Q1 2026
as of
Mariner, LLC
13F manager
AddCommon stock$24.88M+143K
+33.16%
576,070
0.12% of shares
medium
Q1 2026
as of
Schroder Investment Management Group
13F manager
TrimCommon stock$-24.80M-142K
-50.27%
140,426
0.03% of shares
medium
Q2 2026
as of
Forsta Ap-Fonden
13F manager
ExitCommon stock$-24.43M-132K
-100.00%
0
medium
Q2 2026
as of
Mitsubishi UFJ Asset Management Co., Ltd.
13F manager
AddCommon stock$23.52M+141K
+13.32%
1,199,699
0.25% of shares
medium
Q1 2026
as of
ALPS Advisors, Inc.
13F manager
NewCommon stock$19.22M+111K
110,795
0.02% of shares
medium
Q1 2026
as of
First Pacific Advisors, LP
13F manager
NewCommon stock$18.85M+109K
108,697
0.02% of shares
medium
Q1 2026
as of
Credit Agricole S a
13F manager
AddCommon stock$16.46M+95K
+86.99%
203,962
0.04% of shares
medium
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