Institutional Ownership Merck & Co., Inc. (MRK)
This table provides information about the institutional ownership of Merck & Co., Inc. (MRK). We have compiled data on the 3,875 institutions that hold shares in the stock, with a total of 1.9 Billion shares, which have been reported (via 13F filing form) to have a value of $177 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Munich Reinsurance CO Stock Corp In Munich
Munich, |
Nov 13, 2025 Q3 2025 |
1,055,553
shares
|
$98 Million
2.22% of portfolio
|
Q3 2025
New holding
|
|
|
Adage Capital Partners Gp, L.L.C.
Boston, MA |
Nov 14, 2025 Q3 2025 |
1,053,634
shares
|
$97.8 Million
0.15% of portfolio
|
Q3 2025
Reduced 26.07%
|
|
|
Deerfield Management Company, L.P. (Series C)
New York, NY |
Nov 14, 2025 Q3 2025 |
1,030,000
shares
|
$95.6 Million
1.61% of portfolio
|
Q3 2025
Added 20.09%
|
|
|
Bahl & Gaynor Inc
|
Nov 12, 2025 Q3 2025 |
1,029,841
shares
|
$95.6 Million
0.43% of portfolio
|
Q3 2025
Reduced 57.72%
|
|
|
Zacks Investment Management
Chicago, IL |
Nov 14, 2025 Q3 2025 |
1,028,720
shares
|
$95.5 Million
0.71% of portfolio
|
Q3 2025
Added 1.54%
|
|
|
Public Employees Retirement System Of Ohio
Columbus, OH |
Nov 14, 2025 Q3 2025 |
1,028,440
shares
|
$95.5 Million
0.28% of portfolio
|
Q3 2025
Reduced 0.82%
|
|
|
King Luther Capital Management Corp
Fort Worth, TX |
Nov 07, 2025 Q3 2025 |
1,002,817
shares
|
$93.1 Million
0.35% of portfolio
|
Q3 2025
Reduced 20.82%
|
|
|
Cibc World Market Inc.
Toronto, A6 |
Nov 06, 2025 Q3 2025 |
981,601
shares
|
$91.2 Million
0.16% of portfolio
|
Q3 2025
Added 0.28%
|
|
|
Bnp Paribas Asset Management Holding S.A.
|
Nov 07, 2025 Q3 2025 |
978,229
shares
|
$90.8 Million
0.21% of portfolio
|
Q3 2025
Reduced 23.49%
|
|
|
Healthcare Of Ontario Pension Plan Trust Fund
Toronto, A6 |
Nov 13, 2025 Q3 2025 |
975,879
shares
|
$90.6 Million
0.16% of portfolio
|
Q3 2025
Added 277.41%
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
Nov 14, 2025 Q3 2025 |
968,054
shares
|
$89.9 Million
0.01% of portfolio
|
Q3 2025
New holding
|
|
|
Comerica Bank
|
Nov 13, 2025 Q3 2025 |
966,673
shares
|
$89.8 Million
0.31% of portfolio
|
Q3 2025
Reduced 3.85%
|
|
|
Mn Services Vermogensbeheer B.V.
|
Oct 31, 2025 Q3 2025 |
955,199
shares
|
$88.7 Million
0.52% of portfolio
|
Q3 2025
Added 1.54%
|
|
|
Cwm, LLC
|
Oct 15, 2025 Q3 2025 |
955,066
shares
|
$88.7 Million
0.24% of portfolio
|
Q3 2025
Added 23.72%
|
|
|
State Of Tennessee, Treasury Department
Nashville, TN |
Nov 14, 2025 Q3 2025 |
951,314
shares
|
$88.3 Million
0.27% of portfolio
|
Q3 2025
Added 11.53%
|
|
|
Sarasin & Partners LLP
|
Oct 10, 2025 Q3 2025 |
947,869
shares
|
$88 Million
0.8% of portfolio
|
Q3 2025
Added 0.08%
|
|
|
Platinum Investment Management LTD
Sydney Australia 2000, C3 |
Nov 13, 2025 Q3 2025 |
938,786
shares
|
$87.2 Million
5.52% of portfolio
|
Q3 2025
Added 7.19%
|
|
|
Voloridge Investment Management, LLC
Jupiter, FL |
Nov 14, 2025 Q3 2025 |
938,715
shares
|
$87.2 Million
0.29% of portfolio
|
Q3 2025
Reduced 46.24%
|
|
|
Resona Asset Management Co.,Ltd.
Koto Ku,Tokyo, M0 |
Oct 31, 2025 Q3 2025 |
936,797
shares
|
$87 Million
0.38% of portfolio
|
Q3 2025
Reduced 4.57%
|
|
|
Fjarde Ap Fonden
|
Oct 28, 2025 Q3 2025 |
924,129
shares
|
$85.8 Million
0.67% of portfolio
|
Q3 2025
Reduced 0.65%
|
|
|
Woodline Partners LP
San Francisco, CA |
Nov 14, 2025 Q3 2025 |
908,544
shares
|
$84.4 Million
0.39% of portfolio
|
Q3 2025
Added 16.72%
|
|
|
Advisor Group Holdings, Inc.
Phoenix, AZ |
Nov 14, 2025 Q3 2025 |
901,959
shares
|
$83.8 Million
0.11% of portfolio
|
Q3 2025
Added 25.96%
|
|
|
Mediolanum International Funds LTD
Dublin 1, L2 |
Nov 04, 2025 Q3 2025 |
897,288
shares
|
$83.3 Million
0.74% of portfolio
|
Q3 2025
Added 37.93%
|
|
|
Meag Munich Ergo, Kapitalanlagegesellschaft Mb H
|
Jul 16, 2025 Q2 2025 |
888,415
shares
|
$82.5 Million
2.03% of portfolio
|
Q2 2025
Added 9.83%
|
|
|
Marshall Wace, LLP
London, X0 |
Nov 13, 2025 Q3 2025 |
883,900
shares
|
$82.1 Million
0.08% of portfolio
|
Q3 2025
Reduced 71.89%
|
|