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	3,813	$231.9B
Q4 2025	3,675	$206.6B
Q3 2025	3,320	$159.8B
Q2 2025	3,338	$155.9B
Q1 2025	3,460	$177.7B
Q4 2024	3,619	$196.9B
Q3 2024	3,502	$221.8B
Q2 2024	3,558	$242.3B
Q1 2024	3,547	$256.9B
Q4 2023	3,444	$211.6B
Q3 2023	3,222	$197.7B
Q2 2023	3,262	$222.8B
Q1 2023	3,188	$205.1B
Q4 2022	3,244	$212.2B
Q3 2022	2,997	$162.7B
Q2 2022	3,020	$171.5B
Q1 2022	2,962	$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
AMF Pensionsforsakring AB	2,751,525	$212.4M	1.59%	–	–
Raymond James Financial Services Advisors, Inc.	2,676,157	$206.3M	0.47%	–	–
Baird Financial Group, Inc.	2,620,141	$202.0M	0.57%	–	–
Boston Partners	2,482,023	$191.3M	0.26%	–	–
KBC Group NV	2,471,052	$190.5M	0.77%	–	–
Two Sigma Investments, LP	2,431,649	$187.5M	0.57%	–	–
Acadian Asset Management LLC	2,405,210	$185.4M	0.72%	–	–
AXA S.A.	2,385,198	$183.9M	0.56%	–	–
Employees Provident Fund Board	2,329,466	$179.6M	3.07%	–	–
Coho Partners, Ltd.	2,288,216	$176.4M	2.86%	–	–
M&T Bank Corp	2,200,638	$169.6M	0.73%	–	–
State of Wisconsin Investment Board	2,156,691	$166.3M	0.35%	–	–
Public Employees Retirement Association of Colorado	2,148,496	$165.6M	0.77%	–	–
Marathon Asset Management LLP	2,123,919	$165.1M	2.30%	–	–
Bank of Nova Scotia	2,113,644	$162.9M	0.32%	–	–
Van Eck Associates Corp	2,113,512	$162.9M	0.44%	–	–
HighTower Advisors, LLC	2,105,396	$162.3M	0.51%	–	–
Skandinaviska Enskilda Banken AB (publ)	2,081,203	$160.4M	1.06%	–	–
Cullen Capital Management LLC	2,048,280	$157.9M	1.71%	–	–
Brown Advisory Inc	2,033,255	$156.7M	0.27%	–	–
Antipodes Partners Ltd	2,032,817	$156.7M	6.35%	–	–
STRS Ohio	2,011,067	$155.0M	0.58%	–	–
Thrivent Financial for Lutherans	2,007,910	$154.8M	0.34%	–	–
Bank Julius Baer & Co. Ltd, Zurich	1,960,401	$151.1M	1.13%	–	–
Victory Capital Management Inc	1,954,188	$150.6M	0.15%	–	–
Mackenzie Financial Corp	1,953,639	$150.6M	0.23%	–	–
USS Investment Management Ltd	1,936,304	$149.3M	1.31%	–	–
US Bancorp	1,920,085	$148.0M	0.30%	–	–
Aviva PLC	1,915,351	$147.7M	0.72%	–	–
Pictet Asset Management Ltd	1,902,986	$146.7M	0.18%	–	–
King Luther Capital Management Corp	1,861,234	$143.5M	0.77%	–	–
SRB Corp	1,844,014	$142.2M	9.71%	–	–
Thornburg Investment Management Inc	1,827,775	$140.9M	1.64%	–	–
Chevy Chase Trust Holdings, Inc.	1,770,975	$136.5M	0.49%	–	–
Lazard Asset Management LLC	1,768,842	$136.4M	0.17%	–	–
Eagle Asset Management Inc	1,739,657	$134.1M	0.59%	–	–
Retirement Systems of Alabama	1,711,876	$132.0M	0.50%	–	–
Public Employees Retirement System of Ohio	1,624,469	$125.2M	0.50%	–	–
Natixis	1,620,464	$124.9M	0.41%	–	–
Point72 Asset Management, L.P.	1,580,000	$121.8M	0.62%	–	–
Keybank National Association	1,567,444	$120.8M	0.56%	–	–
Samlyn Capital, LLC	1,557,653	$120.1M	1.78%	–	–
Voya Investment Management LLC	1,552,553	$119.7M	0.24%	–	–
LPL Financial LLC	1,538,024	$118.6M	0.14%	–	–
Regions Financial Corp	1,531,684	$118.1M	1.07%	–	–
Commerce Bank	1,525,452	$117.6M	0.89%	–	–
NN Investment Partners Holdings N.V.	1,517,104	$117.0M	0.69%	–	–
State of New Jersey Common Pension Fund D	1,510,645	$116.5M	0.41%	–	–
Storebrand Asset Management AS	1,498,784	$115.5M	0.61%	–	–
Smead Capital Management, Inc.	1,487,995	$114.7M	5.05%	–	–
Janney Montgomery Scott LLC	1,481,653	$114.2M	0.56%	–	–
First Republic Investment Management, Inc.	1,481,051	$114.2M	0.37%	–	–
Asset Management One Co.,Ltd.	1,461,730	$112.7M	0.45%	–	–
PGGM Investments	1,459,940	$112.5M	0.49%	–	–
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	1,451,181	$111.9M	0.21%	–	–
Douglass Winthrop Advisors, LLC	1,437,599	$110.8M	2.97%	–	–
Toronto Dominion Bank	2,392,669	$108.5M	0.19%	–	–
Factory Mutual Insurance Co	1,392,561	$107.4M	1.37%	–	–
Bessemer Group Inc	1,297,019	$100.0M	0.24%	–	–
Railway Pension Investments Ltd	1,293,639	$99.7M	0.92%	–	–
Commonwealth Equity Services, LLC	1,270,759	$98.0M	0.28%	–	–
Sound Shore Management Inc	1,258,593	$97.0M	2.83%	–	–
Standard Life Aberdeen plc	1,213,425	$93.5M	0.21%	–	–
Lazard Freres Gestion S.A.S.	1,381,743	$90.6M	3.16%	–	–
Martingale Asset Management L P	1,175,336	$90.6M	1.04%	–	–
Primecap Management Co	1,171,400	$90.3M	0.06%	–	–
Handelsbanken Fonder AB	1,143,059	$88.1M	0.50%	–	–
Teacher Retirement System of Texas	1,136,395	$87.6M	0.49%	–	–
Glenmede Trust Co NA	1,135,359	$87.5M	0.47%	–	–
Treasurer of the State of North Carolina	1,107,966	$85.4M	0.54%	–	–
SEI Investments Co	1,020,266	$80.7M	0.20%	–	–
Mariner, LLC	1,046,165	$80.6M	0.56%	–	–
Crawford Investment Counsel Inc	1,042,696	$80.4M	1.81%	–	–
Millennium Management LLC	1,027,602	$79.2M	0.11%	–	–
CIBC Private Wealth Group, LLC	1,025,681	$79.1M	0.20%	–	–
Camber Capital Management LP	1,000,000	$77.1M	3.06%	–	–
Brandes Investment Partners, LP	1,000,518	$77.0M	1.82%	–	–
AMP Capital Investors Ltd	982,299	$75.7M	0.38%	–	–
Tocqueville Asset Management L.P.	975,540	$75.2M	1.16%	–	–
Jane Street Group, LLC	975,319	$75.2M	0.21%	–	–
Artisan Partners Limited Partnership	969,865	$74.8M	0.10%	–	–
BNP Paribas Arbitrage, SA	947,182	$73.0M	0.16%	–	–
Nomura Asset Management Co Ltd	932,665	$71.9M	0.46%	–	–
Virginia Retirement Systems Et Al	930,794	$71.8M	0.70%	–	–
Royal London Asset Management Ltd	930,444	$71.7M	0.33%	–	–
Capital Bank & Trust Co	930,185	$71.7M	0.85%	–	–
Prudential PLC	929,164	$71.6M	0.50%	–	–
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	918,021	$70.8M	0.46%	–	–
Connor, Clark & Lunn Investment Management Ltd.	917,680	$70.7M	0.39%	–	–
Zacks Investment Management	897,508	$69.2M	1.23%	–	–
Zurcher Kantonalbank (Zurich Cantonalbank)	892,983	$68.8M	0.41%	–	–
Nisa Investment Advisors, LLC	890,904	$68.7M	0.44%	–	–
Los Angeles Capital Management LLC	887,070	$68.4M	0.31%	–	–
Comerica Bank	871,197	$67.8M	0.40%	–	–
Advisor Group Holdings, Inc.	863,799	$66.6M	0.16%	–	–
Compagnie Lombard Odier SCmA	848,761	$65.4M	1.44%	–	–
State of Michigan Retirement System	823,017	$63.4M	0.40%	–	–
Sphera Funds Management Ltd.	808,808	$62.4M	5.73%	–	–
Haverford Trust Co	802,698	$61.9M	0.79%	–	–
Boston Trust Walden Corp	785,609	$60.6M	0.59%	–	–