13F institutional ownership facts

Institutions tracked

50

Reported value

$2,332,509,724.00

Reported shares

18,166,496

Latest filing period

Q2 2026

Top institutional holders

  1. Wellington Management · $11,083,032,867 · 1.91%
  2. Josef Lakonishok - Lsv Asset Management · $680,974,000 · 1.24%
  3. Charles Schwab · $6,985,940,692 · 0.93%
  4. Voya Investment Mgmt · $833,291,318 · 0.72%
  5. Bill Nygren - Oakmark Select Fund · $1,551,394,499 · 2.06%
  6. Jeremy Grantham - GMO · $871,873,732 · 1.96%

Data source and limitations

This page uses public SEC Form 13F disclosures and related institutional filing data. 13F reports are periodic disclosures and may not represent current real-time holdings.

13F Hub provides research and education data only. It does not provide personalized investment advice.

$MRK

Institutional Holdings

50

Top Institutions

Top Institutions

1

Wellington Management

86,249,283 shares

1.91%

% of Portfolio

2

Josef Lakonishok - Lsv Asset Management

5,299,408 shares

1.24%

% of Portfolio

3

Charles Schwab

54,365,289 shares

0.93%

% of Portfolio

4

Voya Investment Mgmt

6,484,756 shares

0.72%

% of Portfolio

5

Bill Nygren - Oakmark Select Fund

12,073,109 shares

2.06%

% of Portfolio

6

Jeremy Grantham - GMO

6,785,008 shares

1.96%

% of Portfolio

7

Ken Fisher - Fisher Asset Management

38,516,263 shares

1.47%

% of Portfolio

8

Ensign Peak Advisors

3,364,831 shares

0.71%

% of Portfolio

9

Franklin Resources

19,548,585 shares

0.54%

% of Portfolio

10

Legal & General

18,873,343 shares

0.51%

% of Portfolio

11

New York State Teachers Retirement System - New York State Teachers Retirement System

1,919,612 shares

0.46%

% of Portfolio

12

PNC Financial Services

7,286,803 shares

0.46%

% of Portfolio

13

State Street Corp

120,413,256 shares

0.46%

% of Portfolio

14

Mitsubishi Ufj Asset Management Co., Ltd.

6,184,340 shares

0.44%

% of Portfolio

15

PFA Pension

1,341,298 shares

0.44%

% of Portfolio

16

Larry Fink - BlackRock

226,999,837 shares

0.43%

% of Portfolio

17

Geode Capital Management

60,744,214 shares

0.42%

% of Portfolio

18

CalPERS

5,398,744 shares

0.39%

% of Portfolio

19

Northern Trust Corp

26,275,718 shares

0.39%

% of Portfolio

20

Amundi

12,342,274 shares

0.38%

% of Portfolio

21

Adage Capital Partners

2,030,023 shares

0.37%

% of Portfolio

22

Robeco Institutional Asset Management

2,373,993 shares

0.37%

% of Portfolio

23

Cliff Asness - AQR Capital Management

8,134,262 shares

0.36%

% of Portfolio

24

Lazard Asset Management

1,843,591 shares

0.36%

% of Portfolio

25

Morgan Stanley

48,641,158 shares

0.33%

% of Portfolio

26

Jamie Dimon - JPMorgan Chase

43,886,420 shares

0.31%

% of Portfolio

27

Canada Pension Plan Investment Board

4,176,604 shares

0.30%

% of Portfolio

28

Neuberger Berman

3,533,955 shares

0.30%

% of Portfolio

29

Nuveen

9,662,399 shares

0.30%

% of Portfolio

30

David Solomon - Goldman Sachs

22,075,139 shares

0.25%

% of Portfolio

31

UBS Group

13,744,783 shares

0.22%

% of Portfolio

32

Capital International Investors

15,386,689 shares

0.41%

% of Portfolio

33

Mike Hankin - Brown Advisory INC

1,365,877 shares

0.27%

% of Portfolio

34

T. Rowe Price

18,518,796 shares

0.24%

% of Portfolio

35

SG Americas Securities

3,072,242 shares

0.22%

% of Portfolio

36

Jennison Associates

2,728,958 shares

0.21%

% of Portfolio

37

Invesco

18,611,171 shares

0.19%

% of Portfolio

38

David E. Shaw - D.E. Shaw & Co.

2,738,023 shares

0.17%

% of Portfolio

39

Joel Greenblatt - Gotham Asset Management

528,937 shares

0.16%

% of Portfolio

40

BNP Paribas

3,130,937 shares

0.14%

% of Portfolio

41

PSP Investments

402,649 shares

0.13%

% of Portfolio

42

Steve Cohen - Point72 Asset Management

380,081 shares

0.05%

% of Portfolio

43

Temasek Holdings

816,101 shares

0.28%

% of Portfolio

44

Jan van Eck - VanEck

1,370,439 shares

0.11%

% of Portfolio

45

Fidelity International (FIL)

678,957 shares

0.06%

% of Portfolio

46

Israel Englander - Millennium Management

561,302 shares

0.03%

% of Portfolio

47

Ken Griffin - Citadel Advisors

1,933,667 shares

0.03%

% of Portfolio

48

Dmitry Balyasny - Balyasny Asset Management

56,028 shares

0.01%

% of Portfolio

49

Jane Street Group

1,121,026 shares

0.01%

% of Portfolio

50

Artisan Partners

87,246 shares

0.02%

% of Portfolio

Institutional InsightPRO

Scale Distribution

MEGA

39%

LARGE

23%

MEDIUM

17%

SMALL

21%

Geographic Distribution

North America
69%
Europe
28%
Asia Pacific
14%
Other
5%

Institutional Activity

Buyers

44

Sellers

18

Holders

62

New

19

Exited

15

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Insider TradingPRO

Trading Statistics

Insider Buyers

22

Insider Sellers

18

Purchase Value

$10.5M

Role Distribution

CEO
24%
CFO
19%
Director
36%
VP
12%
Other
5%
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RatingPRO

74

B

Overall Score

Strong institutional support with positive momentum

Rating Dimensions

Institutional Ownership
84
Recent Activity
88
Concentration
62
Momentum
91
Stability
66

Recent Actions

New

9

Increased

23

Decreased

20

Exited

4

Total

40

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