Merck & Co., Inc. - Common Stock (MRK) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
MRK on NYSE
Shares outstanding
2,527,521,347
Price per share
$109.45
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
1,945,185,339
Total reported value
$204,936,363,433
% of total 13F portfolios
0.15%
Share change
+53,769,238
Value change
+$5,882,297,845
Number of holders
3,527
Price from insider filings
$109.45
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Merck & Co., Inc. - Common Stock (MRK) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 10% $21,453,454,600 253,257,639 The Vanguard Group 28 Feb 2025

As of 31 Dec 2025, 3,527 institutional investors reported holding 1,945,185,339 shares of Merck & Co., Inc. - Common Stock (MRK). This represents 77% of the company’s total 2,527,521,347 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Merck & Co., Inc. - Common Stock (MRK) together control 49% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 10% 254,322,763 +0.87% 0.39% $26,770,014,033
BlackRock, Inc. 8.7% 219,095,465 +2% 0.39% $23,061,988,586
STATE STREET CORP 4.7% 120,040,168 +1.6% 0.43% $12,737,503,943
WELLINGTON MANAGEMENT GROUP LLP 3.4% 86,435,458 +15% 1.6% $9,098,196,310
GEODE CAPITAL MANAGEMENT, LLC 2.4% 60,047,984 +0.42% 0.39% $6,307,571,859
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.9% 48,563,804 -9.6% 0.79% $5,111,826,930
MORGAN STANLEY 1.8% 44,946,021 +0.81% 0.28% $4,731,018,465
FMR LLC 1.6% 40,836,566 +22% 0.22% $4,298,456,848
NORGES BANK 1.5% 37,981,502 0.43% $3,997,932,901
JPMORGAN CHASE & CO 1.2% 29,199,978 -17% 0.21% $3,073,589,831
BANK OF AMERICA CORP /DE/ 1.1% 27,854,441 +5.3% 0.21% $2,931,958,400
NORTHERN TRUST CORP 1.1% 27,234,642 -2.5% 0.37% $2,866,718,416
Fisher Asset Management, LLC 0.98% 24,873,327 +3.3% 0.89% $2,618,166,478
Invesco Ltd. 0.81% 20,546,185 +3.5% 0.33% $2,162,691,447
Legal & General Group Plc 0.78% 19,776,842 -4.3% 0.46% $2,081,710,387
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.77% 19,433,403 -1.6% 0.43% $2,045,560,000
GOLDMAN SACHS GROUP INC 0.77% 19,344,676 +29% 0.29% $2,036,220,530
UBS Group AG 0.76% 19,178,272 +13% 0.4% $2,018,704,911
Bank of New York Mellon Corp 0.76% 19,164,526 -12% 0.36% $2,017,257,973
PRICE T ROWE ASSOCIATES INC /MD/ 0.74% 18,753,390 +38% 0.21% $1,973,983,000
FRANKLIN RESOURCES INC 0.64% 16,064,050 -4.1% 0.42% $1,690,901,822
AMERIPRISE FINANCIAL INC 0.63% 15,974,409 +0.25% 0.38% $1,683,102,538
HARRIS ASSOCIATES L P 0.56% 14,088,705 +43% 1.9% $1,482,977,135
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 0.55% 13,794,969 0% 1.1% $1,452,058,437
Amundi 0.53% 13,385,093 -12% 0.43% $1,408,915,521

Institutional Holders of Merck & Co., Inc. - Common Stock (MRK) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,945,185,339 $204,936,363,433 +$5,882,297,845 $105.26 3,527
2025 Q3 1,898,845,568 $159,333,539,344 -$5,252,069,947 $83.93 3,273
2025 Q2 1,962,034,663 $155,426,643,563 +$1,505,473,737 $79.16 3,289
2025 Q1 1,941,447,306 $174,232,015,862 -$3,587,246,902 $89.76 3,404
2024 Q4 1,974,065,350 $196,447,436,509 +$1,380,482,223 $99.48 3,564
2024 Q3 1,947,661,118 $221,070,370,247 -$744,228,437 $113.56 3,451
2024 Q2 1,949,415,662 $241,598,779,368 +$1,501,198,298 $123.80 3,508
2024 Q1 1,941,852,214 $256,040,362,493 +$1,890,608,443 $131.95 3,501
2023 Q4 1,933,150,988 $210,948,238,812 +$1,318,800,501 $109.02 3,400
2023 Q3 1,915,111,810 $197,316,747,504 -$1,438,036,059 $102.95 3,187
2023 Q2 1,928,213,181 $222,354,738,610 +$571,381,359 $115.39 3,228
2023 Q1 1,916,184,102 $203,955,773,239 +$1,393,536,493 $106.39 3,143
2022 Q4 1,910,613,534 $212,044,007,861 +$3,048,706,791 $110.95 3,194
2022 Q3 1,884,427,186 $162,534,818,377 +$724,062,490 $86.12 2,957
2022 Q2 1,873,403,998 $170,943,528,865 +$4,592,156,668 $91.17 2,980
2022 Q1 1,838,887,453 $150,955,940,625 +$142,448,476 $82.05 2,924
2021 Q4 1,837,012,964 $140,853,569,294 +$138,185,632 $76.64 2,872
2021 Q3 1,837,457,296 $138,201,713,292 -$807,929,658 $75.11 2,619
2021 Q2 1,848,198,293 $143,695,016,489 -$241,935,815 $77.77 2,641
2021 Q1 1,850,105,541 $142,628,769,907 -$1,117,656,172 $77.09 2,654
2020 Q4 1,866,883,590 $152,693,500,286 -$706,920,307 $81.80 2,670
2020 Q3 1,875,444,213 $155,469,945,637 -$969,657,574 $82.95 2,532
2020 Q2 1,884,914,191 $145,782,442,284 -$606,647,857 $77.33 2,468
2020 Q1 1,894,692,919 $145,892,266,360 -$1,876,783,315 $76.94 2,447
2019 Q4 1,915,462,338 $174,212,083,452 +$121,693,650 $90.95 2,502
2019 Q3 1,917,596,821 $161,399,214,755 -$1,259,011,708 $84.18 2,277
2019 Q2 1,931,032,590 $161,888,528,365 +$572,969,976 $83.85 2,264
2019 Q1 1,956,908,100 $162,681,987,049 -$1,344,776,430 $83.17 2,250
2018 Q4 1,975,345,373 $150,902,555,637 -$880,884,221 $76.41 2,213
2018 Q3 1,984,848,823 $140,793,973,040 +$3,600,893,701 $70.94 2,020
2018 Q2 1,937,128,452 $117,568,988,263 -$3,746,313,470 $60.70 1,985
2018 Q1 1,998,884,778 $108,890,984,548 -$933,753,705 $54.47 1,958
2017 Q4 2,015,428,164 $113,422,330,685 -$1,112,535,759 $56.27 1,972
2017 Q3 2,033,976,922 $130,222,273,759 +$1,157,828,229 $64.03 1,889
2017 Q2 2,030,118,598 $130,171,207,324 -$1,136,384,953 $64.09 1,887
2017 Q1 2,038,974,197 $129,565,256,270 +$11,571,640,991 $63.54 1,899
2016 Q4 2,045,339,344 $120,452,613,795 -$1,972,272,504 $58.87 1,875
2016 Q3 2,058,604,827 $128,385,194,131 +$1,131,297,055 $62.41 1,770
2016 Q2 2,042,837,477 $117,705,440,972 +$79,685,259 $57.61 1,714
2016 Q1 2,040,836,066 $107,991,318,537 -$674,079,835 $52.91 1,692
2015 Q4 2,052,429,890 $108,400,002,466 -$2,110,617,718 $52.82 1,710
2015 Q3 2,088,340,834 $103,146,145,399 -$234,126,115 $49.39 1,620
2015 Q2 2,102,152,968 $119,681,346,928 -$230,574,203 $56.93 1,679
2015 Q1 2,103,056,614 $120,942,537,699 -$459,335,909 $57.48 1,663
2014 Q4 2,113,752,741 $120,112,553,976 -$272,528,664 $56.79 1,668
2014 Q3 2,110,510,324 $125,108,077,886 -$1,876,466,888 $59.28 1,570
2014 Q2 2,144,477,035 $124,045,106,143 -$1,578,377,097 $57.85 1,568
2014 Q1 2,176,480,448 $123,551,292,845 +$4,002,536,525 $56.77 1,549