Merck & Co., Inc. (MRK) Institutional Ownership

$156.54 +5.88 (+3.90%)

Closing price 03:59 PM Eastern

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$156.44 -0.10 (-0.06%)

As of 04:28 PM Eastern

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Current Institutional Ownership Percentage: 76.07%
Number of Institutional Buyers (last 12 months): 2441
Total Institutional Inflows (last 12 months): $83.97B

Number of Institutional Sellers (last 12 months): 1928
Total Institutional Outflows (last 12 months): $16.53B

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MRK Institutional Buying and Selling by Quarter

Merck & Co., Inc. Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/25/2026	Groupe la Francaise	260,892	$33.53M	0.4%	+254.7%	0.011%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	619,138	$79.56M	0.5%	N/A	0.025%
8/25/2026	Financial Insights Inc.	1,764	$227K	0.1%	N/A	0.000%
8/24/2026	Strategic Financial Services Inc.	18,756	$2.41M	0.1%	-1.3%	0.001%
8/24/2026	California State Teachers Retirement System	484,720,247	$62.29B	0.2%	+12,537.4%	19.647%
8/23/2026	Studio Investment Management LLC	40,605	$5.25M	0.9%	-2.1%	0.002%
8/23/2026	Washington Trust Advisors Inc.	7,790	$1.00M	0.1%	-12.5%	0.000%
8/23/2026	Ameritas Advisory Services LLC	29,071	$3.74M	0.1%	+48.8%	0.001%
8/23/2026	Wedmont Private Capital	28,290	$3.50M	0.1%	+9.4%	0.001%
8/23/2026	Kintra Wealth LLC	37,050	$5.02M	0.3%	+4.9%	0.002%
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8/23/2026	Endeavor Private Wealth Inc.	1,999	$259K	0.1%	+18.1%	0.000%
8/23/2026	POM Investment Strategies LLC	541	$70K	0.1%	-50.4%	0.000%
8/23/2026	Yarger Wealth Strategies LLC	8,782	$1.09M	0.4%	+8.6%	0.000%
8/23/2026	Insight Inv LLC	20,428	$2.63M	1.2%	-2.3%	0.001%
8/23/2026	Operose Advisors LLC	4,872	$626K	0.1%	-3.1%	0.000%
8/23/2026	HB Wealth Management LLC	242,175	$31.12M	0.2%	+0.3%	0.010%
8/23/2026	Nilsine Partners LLC	26,144	$3.36M	0.2%	-1.3%	0.001%
8/23/2026	Saudi Central Bank	440,465	$56.33M	0.7%	+22.7%	0.018%
8/23/2026	Fortitude Advisory Group L.L.C.	2,728	$351K	0.1%	-2.7%	0.000%
8/23/2026	Angeles Wealth Management LLC	37,088	$4.80M	0.2%	-1.3%	0.002%
8/23/2026	Azimuth Capital Investment Management LLC	129,218	$16.61M	0.6%	-2.5%	0.005%
8/22/2026	Advisory Solutions Group LLC	1,626	$209K	0.1%	N/A	0.000%
8/22/2026	Rose Capital Advisors LLC	4,482	$576K	0.3%	N/A	0.000%
8/22/2026	Compass Financial Management LLC	2,732	$350K	0.0%	N/A	0.000%
8/22/2026	NI Acquisitions Company LLC	2,087	$268K	0.1%	N/A	0.000%
8/22/2026	NBH Bank	10,243	$1.32M	0.6%	N/A	0.000%
8/22/2026	MW Advisory LLC	3,283	$422K	0.2%	N/A	0.000%
8/22/2026	Tenet Wealth Partners LLC	1,750	$229K	0.2%	N/A	0.000%
8/22/2026	Maloon Powers Pitre Higgins & Dennehy LLC	6,865	$882K	0.3%	N/A	0.000%
8/22/2026	Markowski Investments	2,585	$332K	0.1%	N/A	0.000%
8/22/2026	Old Mission Investment Co LLC	10,342	$1.34M	0.3%	N/A	0.000%
8/22/2026	Montgomery Financial Services LLC	318	$41K	0.0%	N/A	0.000%
8/22/2026	Highland Investment Advisors LLC	562	$72K	0.0%	N/A	0.000%
8/22/2026	Oakmont Investment Advisors Inc.	24,110	$3.10M	2.2%	N/A	0.001%
8/22/2026	Invested Advisors	2,080	$267K	0.2%	-4.2%	0.000%
8/22/2026	Blalock Williams LLC	2,106	$271K	0.2%	+7.7%	0.000%
8/22/2026	MOR Wealth Management LLC	5,136	$660K	0.3%	N/A	0.000%
8/22/2026	BAM Wealth Management LLC	2,194	$282K	0.2%	+11.6%	0.000%
8/22/2026	Three Seasons Wealth LLC	15,046	$1.93M	0.2%	+295.4%	0.001%
8/22/2026	Investor s Fiduciary Advisor Network LLC	31,358	$4.03M	1.4%	-5.1%	0.001%
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8/22/2026	Tudor Financial Inc.	4,288	$551K	0.2%	+22.9%	0.000%
8/22/2026	NWF Advisory Services Inc.	14,785	$1.90M	0.2%	+1.5%	0.001%
8/22/2026	Rogco LP	11,143	$1.43M	0.4%	+23.8%	0.000%
8/22/2026	Syon Capital LLC	29,362	$3.77M	0.2%	+14.4%	0.001%
8/22/2026	denkapparat Operations GmbH	5,946	$764K	0.2%	-26.1%	0.000%
8/22/2026	TD Waterhouse Canada Inc.	354,395	$44.47M	0.1%	-11.0%	0.014%
8/22/2026	Premier Path Wealth Partners LLC	18,915	$2.43M	0.3%	+7.6%	0.001%
8/22/2026	Concurrent Investment Advisors LLC	280,871	$36.09M	0.3%	+10.5%	0.011%
8/22/2026	Prosperitas Financial LLC	2,835	$364K	0.1%	+26.0%	0.000%
8/22/2026	NEOS Investment Management LLC	404,459	$51.97M	0.2%	+11.0%	0.016%
8/22/2026	Burford Brothers Inc.	2,161	$278K	0.1%	-78.7%	0.000%
8/22/2026	Allen Mooney & Barnes Investment Advisors LLC	126,728	$16.29M	2.5%	-2.6%	0.005%
8/21/2026	Montz Harcus Wealth Management LLC	3,191	$410K	0.1%	-5.6%	0.000%
8/21/2026	High Net Worth Advisory Group LLC	15,581	$2.00M	0.4%	+2.4%	0.001%
8/21/2026	Athena Investment Management	7,598	$976K	0.6%	-13.4%	0.000%
8/21/2026	Strengthening Families & Communities LLC	41,350	$5.31M	1.2%	+4.2%	0.002%
8/21/2026	Smallwood Wealth Investment Management LLC	3,432	$441K	0.2%	+6.2%	0.000%
8/21/2026	Beacon Capital Management LLC	4,401	$566K	0.1%	+3.9%	0.000%
8/21/2026	Aletheian Wealth Advisors LLC	2,428	$312K	0.1%	+21.9%	0.000%
8/21/2026	Mayport LLC	2,027	$260K	0.0%	+14.3%	0.000%
8/21/2026	Safeguard Investment Advisory Group LLC	3,789	$487K	0.1%	+63.0%	0.000%
8/21/2026	Round Rock Advisors LLC	9,901	$1.27M	0.2%	+0.7%	0.000%
8/21/2026	Nykredit A S	778,827	$100.08M	0.3%	N/A	0.032%
8/21/2026	B. Metzler seel. Sohn & Co. AG	443,208	$56.95M	0.5%	-2.6%	0.018%
8/21/2026	MBA Advisors LLC	10,918	$1.40M	0.5%	+1.7%	0.000%
8/21/2026	Emergent Wealth Advisors LLC	1,506	$209K	0.1%	-14.0%	0.000%
8/21/2026	Natural Investments LLC	15,454	$1.99M	0.5%	+5.9%	0.001%
8/21/2026	Cairn Investment Group Inc.	54,875	$7.05M	3.0%	+0.4%	0.002%
8/21/2026	XML Financial LLC	59,108	$7.60M	0.6%	-3.4%	0.002%
8/21/2026	Beacon Financial Advisory LLC	7,120	$915K	0.2%	+7.4%	0.000%
8/21/2026	KFA Private Wealth Group LLC	2,657	$342K	0.1%	-4.3%	0.000%
8/21/2026	Symphony Financial Ltd. Co.	35,684	$4.61M	0.5%	+1.3%	0.001%
8/21/2026	Secure Asset Management LLC	4,350	$559K	0.1%	-83.5%	0.000%
8/21/2026	R. W. Roge & Company Inc.	1,775	$228K	0.1%	N/A	0.000%
8/21/2026	Banco de Sabadell S.A	11,969	$1.54M	0.9%	-0.6%	0.000%
8/21/2026	Chesapeake Wealth Management	15,024	$1.93M	0.5%	+1.8%	0.001%
8/21/2026	Retirement Income Solutions Inc.	6,163	$741K	0.1%	+4.1%	0.000%
8/21/2026	Independence Bank of Kentucky	30,740	$3.95M	0.4%	-11.6%	0.001%
8/21/2026	Bedel Financial Consulting Inc.	7,015	$901K	0.1%	+1.2%	0.000%
8/21/2026	Acorn Wealth Advisors LLC	6,368	$818K	0.2%	+4.6%	0.000%
8/21/2026	Investors Research Corp	8,779	$1.13M	0.2%	-2.0%	0.000%
8/21/2026	Keeler Thomas Management LLC	12,894	$1.66M	0.6%	+7.4%	0.001%
8/21/2026	Triumph Capital Management	2,699	$347K	0.1%	-3.8%	0.000%
8/21/2026	Legacy Financial Advisors Inc.	28,939	$3.72M	0.5%	+2.9%	0.001%
8/20/2026	First PREMIER Bank	21,539	$2.77M	0.4%	-2.1%	0.001%
8/20/2026	Proficio Capital Partners LLC	36,360	$4.67M	0.2%	+93.1%	0.001%
8/20/2026	Community Bank & Trust Waco Texas	39,889	$5.13M	0.9%	-2.1%	0.002%
8/20/2026	Nwam LLC	20,971	$2.70M	0.1%	+93.3%	0.001%
8/20/2026	Piedmont Capital Management LLC	9,878	$1.24M	0.6%	-2.8%	0.000%
8/20/2026	Gill Capital Partners LLC	766	$98K	0.0%	+79.8%	0.000%
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8/20/2026	Clifford Swan Investment Counsel LLC	75,680	$9.73M	0.3%	-0.6%	0.003%
8/20/2026	Rehmann Capital Advisory Group	29,611	$3.81M	0.2%	+1.6%	0.001%
8/20/2026	CMH Wealth Management LLC	28,358	$3.67M	0.6%	+1.9%	0.001%
8/20/2026	A. D. Beadell Investment Counsel Inc.	29,714	$3.82M	2.4%	-1.0%	0.001%
8/20/2026	Advocacy Wealth Management LLC	1,722	$221K	0.0%	N/A	0.000%
8/20/2026	CTC Alternative Strategies Ltd.	1,900	$244K	0.4%	N/A	0.000%
8/20/2026	M Holdings Securities Inc.	62,566	$7.99M	1.1%	+1.4%	0.003%
8/20/2026	Oarsman Capital Inc.	2,279	$293K	0.0%	N/A	0.000%
8/20/2026	Headlands Technologies LLC	10,997	$1.41M	0.2%	N/A	0.000%
8/20/2026	Ancora Advisors LLC	20,902	$2.69M	0.1%	-6.2%	0.001%

MRK Institutional Ownership - Frequently Asked Questions

During the previous two years, 4,180 institutional investors and hedge funds held shares of Merck & Co., Inc.. The most heavily invested institutionals were California State Teachers Retirement System ($62.29B), BlackRock Inc. ($29.17B), Vanguard Group Inc. ($26.77B), State Street Corp ($12.74B), Wellington Management Group LLP ($11.08B), Geode Capital Management LLC ($6.31B), and Charles Schwab Investment Management Inc. ($5.11B).Learn more on Merck & Co., Inc.'s institutional investors.

76.07% of Merck & Co., Inc.'s stock is owned by institutional investors. Learn more on MRK's institutional investor holdings.

Of the 3,551 institutional investors that purchased Merck & Co., Inc.'s stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: California State Teachers Retirement System ($480.90M), Norges Bank ($109.07M), DLD Asset Management LP ($47.50M), Charles Schwab Investment Management Inc. ($35.57M), Wellington Management Group LLP ($22.28M), Nuveen LLC ($11.10M), and Franklin Resources Inc. ($10.80M).

Institutional investors have bought a total of 697,987,316 shares in the last 24 months. This purchase volume represents approximately $83.97B in transactions.

Of the 1,928 institutional investors that sold Merck & Co., Inc.'s stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Arrowstreet Capital Limited Partnership ($16.52M), Franklin Resources Inc. ($10.97M), Cardano Risk Management B.V. ($8.65M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($6.57M), Pacer Advisors Inc. ($5.31M), Charles Schwab Investment Management Inc. ($5.14M), and Assenagon Asset Management S.A. ($4.96M).

Institutional investors have sold a total of 161,405,238 shares in the last 24 months. This volume of shares sold represents approximately $16.53B in transactions.

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Institutional ownership data for NYSE:MRK is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/25/2026. New 13F filings are added each quarter as they're published.

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Merck & Co., Inc. (MRK) Institutional Ownership

MRK Institutional Buying and Selling by Quarter

Merck & Co., Inc. Major Shareholders & Ownership History

MRK Institutional Ownership - Frequently Asked Questions

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Merck & Co., Inc. (MRK) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Merck & Co., Inc. (NYSE:MRK)

MRK Institutional Buying and Selling by Quarter

Merck & Co., Inc. Major Shareholders & Ownership History

MRK Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of MRK shares?

What percentage of Merck & Co., Inc.'s stock is owned by institutional investors?

Which institutional investors have been buying Merck & Co., Inc.'s stock?

How much institutional buying is happening at Merck & Co., Inc.?

Which of Merck & Co., Inc.'s major shareholders have been selling company stock?

How much institutional selling is happening at Merck & Co., Inc.?

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