Companies / Merck & Co., Inc. / Activity

Activity — Merck & Co., Inc.

855 moves.

InsidersInstitutions
DateActorActionSecurityValueShares ΔPosition afterImpact
Q1 2026
as of
Norges Bank
13F manager
Exit$-4.00B-38.0M
-100.00%
high
Q2 2026
as of
BlackRock, Inc.
13F manager
Add$1.02B+7.9M
+3.61%
226,999,837
9.20% of shares
high
Q1 2026
as of
Arrowstreet Capital, Limited Partnership
13F manager
Trim$-842.97M-7.0M
-70.47%
2,936,330
0.12% of shares
high
Q1 2023
as of
Barclays PLC
13F manager
Trim$-597.93M-5.6M
-68.67%
2,564,610
0.10% of shares
high
Q1 2026
as of
Millennium Management LLC
13F manager
Trim$-580.96M-4.8M
-71.02%
1,970,691
0.08% of shares
high
Q2 2023
as of
Barclays PLC
13F manager
Add$541.21M+4.7M
+182.89%
7,254,914
0.29% of shares
high
Q1 2026
as of
Los Angeles Capital Management LLC
13F manager
Trim$-446.89M-3.7M
-96.58%
131,751
<0.01% of shares
high
Q1 2024
as of
Barclays PLC
13F manager
Add$421.78M+3.2M
+58.38%
8,671,807
0.35% of shares
high
Q1 2026
as of
AQR Capital Management, LLC
13F manager
Trim$-315.27M-2.6M
-23.30%
8,628,486
0.35% of shares
high
Q4 2025
as of
Barclays PLC
13F manager
Trim$-288.33M-2.7M
-36.46%
4,773,686
0.19% of shares
high
Q1 2026
as of
AllianceBernstein L.P.
13F manager
Add$280.95M+2.7M
+30.92%
11,301,486
0.46% of shares
high
Q1 2026
as of
Voya Investment Management LLC
13F manager
Add$261.35M+2.2M
+72.75%
5,159,124
0.21% of shares
high
Q1 2026
as of
Nordea Investment Management AB
13F manager
Trim$-244.52M-2.0M
-19.35%
8,527,993
0.35% of shares
high
Q3 2025
as of
Broadwater Capital Management LLC
13F manager
Trim$-195.70M-2.3M
-98.74%
29,832
<0.01% of shares
high
Q1 2026
as of
OMERS Administration Corporation
13F manager
Add$159.18M+1.3M
+480.13%
1,598,927
0.06% of shares
high
Q4 2025
as of
Bank of America Corp /De
13F manager
Add$147.89M+1.4M
+5.31%
27,854,441
1.13% of shares
high
Q1 2026
as of
Marshall Wace, LLP
13F manager
Trim$-143.29M-1.2M
-30.01%
2,778,301
0.11% of shares
high
Q4 2023
as of
Barclays PLC
13F manager
Trim$-139.32M-1.3M
-18.92%
5,475,331
0.22% of shares
high
Q2 2020
as of
Employees Provident Fund Board
13F manager
Trim$-139.14M-1.8M
-99.82%
3,300
<0.01% of shares
high
Q1 2026
as of
Lazard Asset Management LLC
13F manager
Trim$-138.66M-1.2M
-26.16%
3,254,331
0.13% of shares
high
Q3 2025
as of
Barclays PLC
13F manager
Add$135.71M+1.6M
+27.42%
7,512,887
0.30% of shares
high
Q3 2024
as of
Barclays PLC
13F manager
Trim$-131.42M-1.2M
-14.39%
6,887,575
0.28% of shares
high
Q1 2026
as of
Victory Capital Management, Inc.
13F manager
Trim$-122.55M-1.0M
-21.19%
3,789,757
0.15% of shares
high
Q1 2026
as of
Janus Henderson Group PLC
13F manager
Add$119.70M+995K
+52.78%
2,880,199
0.12% of shares
high
Q1 2026
as of
Atle Fund Management AB
13F manager
Trim$-109.61M-162K
-82.71%
33,853
<0.01% of shares
high
Q2 2026
as of
Deutsche Bank AG
13F manager
Trim$-105.90M-824K
-6.44%
11,964,180
0.48% of shares
high
Q2 2026
as of
Temasek Holdings (Private) Limited
13F manager
New$104.87M+816K
816,101
0.03% of shares
high
Q2 2026
as of
Mitsubishi UFJ Asset Management Co., Ltd.
13F manager
Add$99.31M+773K
+14.28%
6,184,340
0.25% of shares
high
Q3 2020
as of
Employees Provident Fund Board
13F manager
Add$98.46M+1.2M
+35970.88%
1,190,339
0.05% of shares
high
Q3 2022
as of
Employees Provident Fund Board
13F manager
Trim$-86.15M-1.0M
-47.31%
1,114,273
0.05% of shares
high
Q1 2026
as of
CPPIB Crestone Peak Resources Canada Inc.
13F manager
Trim$-83.93M-698K
-16.17%
3,616,870
0.15% of shares
high
Q2 2026
as of
Forsta Ap-Fonden
13F manager
Exit$-83.44M-793K
-100.00%
high
Q4 2022
as of
Employees Provident Fund Board
13F manager
Trim$-82.02M-739K
-66.35%
375,000
0.02% of shares
high
Q3 2018
as of
Employees Provident Fund Board
13F manager
Trim$-80.41M-1.1M
-44.71%
1,402,020
0.06% of shares
high
Q1 2026
as of
Orbimed Advisors LLC
13F manager
New$79.80M+663K
663,400
0.03% of shares
high
Q2 2024
as of
Barclays PLC
13F manager
Trim$-77.62M-627K
-7.23%
8,044,824
0.33% of shares
high
Q1 2026
as of
Clark Capital Management Group, Inc.
13F manager
Add$74.88M+622K
+3493.40%
640,272
0.03% of shares
high
Q1 2026
as of
Credit Agricole S a
13F manager
Trim$-67.32M-560K
-46.74%
637,765
0.03% of shares
high
Q1 2020
as of
Employees Provident Fund Board
13F manager
Add$63.86M+830K
+85.34%
1,802,573
0.07% of shares
high
Q1 2026
as of
Federated Hermes Inc
13F manager
Add$62.08M+516K
+20.71%
3,008,096
0.12% of shares
high
Q1 2026
as of
Geode Capital Management, LLC
13F manager
Trim$-58.72M-490K
-0.82%
59,558,154
2.41% of shares
high
Q3 2025
as of
Employees Provident Fund Board
13F manager
Add$55.81M+665K
+39.37%
2,354,034
0.10% of shares
high
Q1 2025
as of
Barclays PLC
13F manager
Trim$-54.68M-609K
-9.42%
5,856,852
0.24% of shares
high
Q1 2026
as of
Bank of New York Mellon Corp/The
13F manager
Trim$-54.27M-451K
-2.35%
18,713,363
0.76% of shares
high
Q1 2026
as of
Zurich Insurance Group Ltd/FI
13F manager
Add$52.72M+438K
+82.81%
967,598
0.04% of shares
high
Q2 2022
as of
Employees Provident Fund Board
13F manager
Trim$-51.67M-567K
-21.14%
2,114,612
0.09% of shares
high
Q3 2023
as of
Barclays PLC
13F manager
Trim$-51.64M-502K
-6.91%
6,753,283
0.27% of shares
high
Q4 2020
as of
Employees Provident Fund Board
13F manager
Add$48.42M+592K
+49.73%
1,782,263
0.07% of shares
medium
Q2 2026
as of
State Street Corporation
13F manager
Add$48.25M+373K
+0.31%
120,413,256
4.88% of shares
medium
Q1 2026
as of
Amundi
13F manager
Add$45.69M+380K
+2.84%
13,764,954
0.56% of shares
medium
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