Merck & Co., Inc.

MRK

Exchange: NYSE
Industry: Pharmaceutical Preparations
SEC CIK: 0000310158

SEC filings (opens in a new tab)

In the last 90 days, Merck & Co., Inc. insiders filed 0 open-market purchases and 7 sales; 3,855 institutions reported holding it in 13F filings for Q2 2026, worth $254.3B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Fairfax Financial.

13F holders, Q1 2021

Institutional positions in Merck & Co., Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders: 2,693; No complete 13F data for Q4 2020
Shares held: 1.86B; No complete 13F data for Q4 2020
Total value: $143.2B; No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting MRK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 2,693 institutions

Value heldQ1 2021: $143.2B

Institutions holding MRK and their total value by quarter
Quarter	Holders	Value
Q2 2026	3,855	$254.3B
Q1 2026	3,812	$231.9B
Q4 2025	3,674	$206.6B
Q3 2025	3,319	$159.8B
Q2 2025	3,337	$155.9B
Q1 2025	3,459	$177.7B
Q4 2024	3,618	$196.9B
Q3 2024	3,501	$221.8B
Q2 2024	3,557	$242.3B
Q1 2024	3,546	$256.9B
Q4 2023	3,443	$211.6B
Q3 2023	3,221	$197.7B
Q2 2023	3,261	$222.8B
Q1 2023	3,187	$205.1B
Q4 2022	3,243	$212.2B
Q3 2022	2,996	$162.7B
Q2 2022	3,019	$171.5B
Q1 2022	2,961	$152.1B
Q4 2021	2,910	$142.2B
Q3 2021	2,658	$138.8B
Q2 2021	2,684	$144.3B
Q1 2021	2,693	$143.2B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Merck & Co., Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding MRK in Q1 2021
Institution	Shares	Value	% of portfolio	Change in shares	Action
Zurcher Kantonalbank (Zurich Cantonalbank)	892,983	$68.8M	0.41%	–	–
Zacks Investment Management	897,508	$69.2M	1.23%	–	–
Connor, Clark & Lunn Investment Management Ltd.	917,680	$70.7M	0.39%	–	–
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	918,021	$70.8M	0.46%	–	–
Prudential PLC	929,164	$71.6M	0.50%	–	–
Capital Bank & Trust Co	930,185	$71.7M	0.85%	–	–
Royal London Asset Management Ltd	930,444	$71.7M	0.33%	–	–
Virginia Retirement Systems Et Al	930,794	$71.8M	0.70%	–	–
Nomura Asset Management Co Ltd	932,665	$71.9M	0.46%	–	–
BNP Paribas Arbitrage, SA	947,182	$73.0M	0.16%	–	–
Artisan Partners Limited Partnership	969,865	$74.8M	0.10%	–	–
Jane Street Group, LLC	975,319	$75.2M	0.21%	–	–
Tocqueville Asset Management L.P.	975,540	$75.2M	1.16%	–	–
AMP Capital Investors Ltd	982,299	$75.7M	0.38%	–	–
Brandes Investment Partners, LP	1,000,518	$77.0M	1.82%	–	–
Camber Capital Management LP	1,000,000	$77.1M	3.06%	–	–
CIBC Private Wealth Group, LLC	1,025,681	$79.1M	0.20%	–	–
Millennium Management LLC	1,027,602	$79.2M	0.11%	–	–
Crawford Investment Counsel Inc	1,042,696	$80.4M	1.81%	–	–
Mariner, LLC	1,046,165	$80.6M	0.56%	–	–
SEI Investments Co	1,020,266	$80.7M	0.20%	–	–
Treasurer of the State of North Carolina	1,107,966	$85.4M	0.54%	–	–
Glenmede Trust Co NA	1,135,359	$87.5M	0.47%	–	–
Teacher Retirement System of Texas	1,136,395	$87.6M	0.49%	–	–
Handelsbanken Fonder AB	1,143,059	$88.1M	0.50%	–	–
Primecap Management Co	1,171,400	$90.3M	0.06%	–	–
Martingale Asset Management L P	1,175,336	$90.6M	1.04%	–	–
Lazard Freres Gestion S.A.S.	1,381,743	$90.6M	3.16%	–	–
Standard Life Aberdeen plc	1,213,425	$93.5M	0.21%	–	–
Sound Shore Management Inc	1,258,593	$97.0M	2.83%	–	–
Commonwealth Equity Services, LLC	1,270,759	$98.0M	0.28%	–	–
Railway Pension Investments Ltd	1,293,639	$99.7M	0.92%	–	–
Bessemer Group Inc	1,297,019	$100.0M	0.24%	–	–
Factory Mutual Insurance Co	1,392,561	$107.4M	1.37%	–	–
Toronto Dominion Bank	2,392,669	$108.5M	0.19%	–	–
Douglass Winthrop Advisors, LLC	1,437,599	$110.8M	2.97%	–	–
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	1,451,181	$111.9M	0.21%	–	–
PGGM Investments	1,459,940	$112.5M	0.49%	–	–
Asset Management One Co.,Ltd.	1,461,730	$112.7M	0.45%	–	–
First Republic Investment Management, Inc.	1,481,051	$114.2M	0.37%	–	–
Janney Montgomery Scott LLC	1,481,653	$114.2M	0.56%	–	–
Smead Capital Management, Inc.	1,487,995	$114.7M	5.05%	–	–
Storebrand Asset Management AS	1,498,784	$115.5M	0.61%	–	–
State of New Jersey Common Pension Fund D	1,510,645	$116.5M	0.41%	–	–
NN Investment Partners Holdings N.V.	1,517,104	$117.0M	0.69%	–	–
Commerce Bank	1,525,452	$117.6M	0.89%	–	–
Regions Financial Corp	1,531,684	$118.1M	1.07%	–	–
LPL Financial LLC	1,538,024	$118.6M	0.14%	–	–
Voya Investment Management LLC	1,552,553	$119.7M	0.24%	–	–
Samlyn Capital, LLC	1,557,653	$120.1M	1.78%	–	–
Keybank National Association	1,567,444	$120.8M	0.56%	–	–
Point72 Asset Management, L.P.	1,580,000	$121.8M	0.62%	–	–
Natixis	1,620,464	$124.9M	0.41%	–	–
Public Employees Retirement System of Ohio	1,624,469	$125.2M	0.50%	–	–
Retirement Systems of Alabama	1,711,876	$132.0M	0.50%	–	–
Eagle Asset Management Inc	1,739,657	$134.1M	0.59%	–	–
Lazard Asset Management LLC	1,768,842	$136.4M	0.17%	–	–
Chevy Chase Trust Holdings, Inc.	1,770,975	$136.5M	0.49%	–	–
Thornburg Investment Management Inc	1,827,775	$140.9M	1.64%	–	–
SRB Corp	1,844,014	$142.2M	9.71%	–	–
King Luther Capital Management Corp	1,861,234	$143.5M	0.77%	–	–
Pictet Asset Management Ltd	1,902,986	$146.7M	0.18%	–	–
Aviva PLC	1,915,351	$147.7M	0.72%	–	–
US Bancorp	1,920,085	$148.0M	0.30%	–	–
USS Investment Management Ltd	1,936,304	$149.3M	1.31%	–	–
Mackenzie Financial Corp	1,953,639	$150.6M	0.23%	–	–
Victory Capital Management Inc	1,954,188	$150.6M	0.15%	–	–
Bank Julius Baer & Co. Ltd, Zurich	1,960,401	$151.1M	1.13%	–	–
Thrivent Financial for Lutherans	2,007,910	$154.8M	0.34%	–	–
STRS Ohio	2,011,067	$155.0M	0.58%	–	–
Antipodes Partners Ltd	2,032,817	$156.7M	6.35%	–	–
Brown Advisory Inc	2,033,255	$156.7M	0.27%	–	–
Cullen Capital Management LLC	2,048,280	$157.9M	1.71%	–	–
Skandinaviska Enskilda Banken AB (publ)	2,081,203	$160.4M	1.06%	–	–
HighTower Advisors, LLC	2,105,396	$162.3M	0.51%	–	–
Van Eck Associates Corp	2,113,512	$162.9M	0.44%	–	–
Bank of Nova Scotia	2,113,644	$162.9M	0.32%	–	–
Marathon Asset Management LLP	2,123,919	$165.1M	2.30%	–	–
Public Employees Retirement Association of Colorado	2,148,496	$165.6M	0.77%	–	–
State of Wisconsin Investment Board	2,156,691	$166.3M	0.35%	–	–
M&T Bank Corp	2,200,638	$169.6M	0.73%	–	–
Coho Partners, Ltd.	2,288,216	$176.4M	2.86%	–	–
Employees Provident Fund Board	2,329,466	$179.6M	3.07%	–	–
AXA S.A.	2,385,198	$183.9M	0.56%	–	–
Acadian Asset Management LLC	2,405,210	$185.4M	0.72%	–	–
Two Sigma Investments, LP	2,431,649	$187.5M	0.57%	–	–
KBC Group NV	2,471,052	$190.5M	0.77%	–	–
Boston Partners	2,482,023	$191.3M	0.26%	–	–
Baird Financial Group, Inc.	2,620,141	$202.0M	0.57%	–	–
Raymond James Financial Services Advisors, Inc.	2,676,157	$206.3M	0.47%	–	–
AMF Pensionsforsakring AB	2,751,525	$212.4M	1.59%	–	–
Mitsubishi UFJ Trust & Banking Corp	2,746,540	$214.5M	0.47%	–	–
First Trust Advisors LP	2,823,256	$217.7M	0.26%	–	–
American International Group, Inc.	2,841,059	$219.0M	0.90%	–	–
APG Asset Management N.V.	3,405,802	$223.4M	0.38%	–	–
Sarasin & Partners LLP	2,957,039	$228.0M	2.69%	–	–
Alecta Pensionsforsakring, Omsesidigt	2,960,000	$228.2M	1.18%	–	–
London Co of Virginia	2,994,411	$230.8M	1.32%	–	–
Allianz Asset Management GmbH	3,017,091	$232.6M	0.24%	–	–
Russell Investments Group, Ltd.	3,043,678	$234.6M	0.41%	–	–