MRK Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 0.17%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $68,979,561.95

Merck & Co., Inc. Insider Trading History Chart

Merck & Co., Inc. Share Price & Price History

^$146.53

▼ -0.345 (-0.23%)

As of 09/18/2026 03:59 PM ET

Days: 30 | 90 | 365

Merck & Co., Inc. Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
8/13/2026	Chirfi Guindo	EVP	Sell	10,000	$135.00	$1,350,000.00	36,613
8/12/2026	Jennifer Zachary	EVP	Sell	80,315	$133.46	$10,718,839.90	45,509
8/12/2026	Richard R. Deluca	EVP	Sell	11,699	$131.63	$1,539,939.37	110,167
8/11/2026	Richard R. Deluca	EVP	Sell	12,837	$131.76	$1,691,403.12	121,866
8/10/2026	Richard R. Deluca	EVP	Sell	20,784	$130.43	$2,710,857.12	134,703
8/6/2026	Chirfi Guindo	EVP	Sell	15,000	$131.00	$1,965,000.00	46,613
8/6/2026	Richard R. Deluca	EVP	Sell	6,050	$130.38	$788,799.00	155,487
8/5/2026	David Michael Williams	EVP	Sell	52,847	$128.77	$6,805,108.19	31,716
8/5/2026	David R Maraldo	EVP	Sell	18,706	$128.72	$2,407,836.32	18,212
2/9/2026	Chirfi Guindo	CMO	Sell	10,000	$118.41	$1,184,100.00	70,615
2/9/2026	Jennifer Zachary	EVP	Sell	121,573	$119.15	$14,485,422.95	68,916
2/6/2026	David Michael Williams	EVP	Sell	5,000	$121.91	$609,550.00	30,838
2/6/2026	Johannes Jacobus Oosthuizen	Insider	Sell	15,000	$121.87	$1,828,050.00	21,197
2/6/2026	Richard R. Deluca	EVP	Sell	37,685	$120.92	$4,556,870.20	160,174
2/5/2026	Chirfi Guindo	CMO	Sell	20,000	$121.88	$2,437,600.00	80,615
2/4/2026	Caroline Litchfield	CFO	Sell	41,997	$119.61	$5,023,261.17	90,192
2/4/2026	E Smart III	SVP	Sell	6,400	$119.67	$765,888.00	8,205
2/4/2026	Dean Y Li	VP	Sell	15,087	$118.77	$1,791,882.99	102,270
2/4/2026	Robert M. Davis	CEO	Sell	47,434	$118.04	$5,599,109.36	443,602
11/3/2025	David Michael Williams	EVP	Sell	8,614	$83.59	$720,044.26	24,578
4/25/2025	E Smart III	SVP	Sell	4,262	$82.76	$352,723.12	7,778
2/6/2025	Cristal N. Downing	Insider	Sell	2,361	$88.76	$209,562.36	7,085
2/6/2025	Inge G. Thulin	Director	Buy	2,833	$88.25	$250,012.25	2,933
2/13/2024	Joseph Romanelli	Insider	Sell	1,000	$124.89	$124,890.00	19,569
2/2/2024	Steven Mizell	EVP	Sell	50,694	$126.65	$6,420,395.10	23,619
11/9/2023	Johannes Jacobus Oosthuizen	Insider	Sell	2,081	$102.38	$213,052.78	18,191
11/8/2023	Richard R. Deluca	EVP	Sell	43,823	$105.03	$4,602,729.69	111,764

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

76.07% of Merck & Co., Inc. stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Merck & Co., Inc. Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/18/2026	Security National Bank of SO Dak	929	$0.12M	0.1%	N/A	0.000%
9/18/2026	Security National Bank of Sioux City Iowa IA	3,514	$0.45M	0.2%	+6.8%	0.000%
9/15/2026	Anchor Investment Management LLC	63,047	$8.10M	0.6%	-3.7%	0.003%
9/11/2026	Bullseye Investment Management LLC	209	$27K	0.0%	N/A	0.000%
9/11/2026	Smith Chas P & Associates PA Cpas	359,598	$46.21M	2.2%	-2.2%	0.015%
9/11/2026	Talon Private Wealth LLC	7,741	$1M	0.1%	N/A	0.000%
9/11/2026	Marathon Wealth Advisors LLC	20,801	$2.67M	0.9%	+1.0%	0.001%
9/9/2026	Rench Wealth Management Inc.	43,770	$5.62M	1.5%	+0.2%	0.002%
9/9/2026	Bouchey Financial Group Ltd.	3,672	$0.48M	0.0%	+13.7%	0.000%
9/9/2026	The Manufacturers Life Insurance Company	2,073,176	$266.40M	0.1%	+12.3%	0.084%
9/9/2026	Blue Edge Capital LLC	11,499	$1.48M	0.2%	N/A	0.000%
9/9/2026	Sequoia Financial Advisors LLC	292,117	$37.54M	0.2%	-1.7%	0.012%
9/9/2026	Van Hulzen Asset Management LLC	13,759	$1.77M	0.1%	-2.1%	0.001%
9/9/2026	Cahill Financial Advisors Inc.	4,446	$0.57M	0.1%	-6.5%	0.000%
9/9/2026	IPG Investment Advisors LLC	2,702	$0.35M	0.1%	-82.9%	0.000%
9/9/2026	MCF Advisors LLC	23,882	$3.08M	0.1%	-1.8%	0.001%
9/9/2026	Archford Capital Strategies LLC	27,354	$3.52M	0.4%	-20.4%	0.001%
9/9/2026	National Pension Service	5,791,782	$744.24M	0.5%	+0.5%	0.235%
9/9/2026	Cidel Asset Management Inc.	18,925	$2.43M	0.1%	-3.7%	0.001%
9/9/2026	Plimoth Trust Co. LLC	63,317	$8.14M	1.6%	-2.6%	0.003%
9/9/2026	Capital Analysts LLC	72,378	$9.30M	0.2%	-2.2%	0.003%
9/9/2026	Summit Financial Strategies Inc.	5,052	$0.65M	0.0%	-16.6%	0.000%
9/9/2026	SVB Wealth LLC	44,766	$5.75M	0.3%	-6.2%	0.002%
9/9/2026	Capital Advantage Inc.	7,767	$1M	0.1%	-5.0%	0.000%
9/9/2026	Pinnacle Wealth Management Advisory Group LLC	76,268	$9.80M	0.6%	+2.6%	0.003%
9/9/2026	NorthRock Partners LLC	36,249	$4.66M	0.1%	+5.8%	0.001%
9/9/2026	Integrated Wealth Concepts LLC	128,068	$16.46M	0.1%	+12.1%	0.005%
9/9/2026	Community Bank N.A.	112,906	$14.51M	1.6%	-1.7%	0.005%
9/9/2026	RFG Advisory LLC	20,666	$2.66M	0.0%	-20.0%	0.001%
9/9/2026	NewEdge Advisors LLC	455,515	$58.53M	0.2%	+10.1%	0.018%
9/9/2026	IFP Advisors Inc	30,895	$3.97M	0.1%	+4.0%	0.001%
9/9/2026	Baird Financial Group Inc.	1,064,683	$136.81M	0.2%	-8.5%	0.043%
9/9/2026	Arcus Capital Partners LLC	1,615	$0.21M	0.1%	N/A	0.000%
9/9/2026	Beacon Investment Advisory Services Inc.	25,298	$3.25M	0.1%	-4.8%	0.001%
9/9/2026	Sterling Investment Advisors Ltd.	25,499	$3.28M	0.5%	-2.1%	0.001%
9/9/2026	XY Planning Network Inc.	2,758	$0.35M	0.0%	+23.5%	0.000%
9/8/2026	Ramsay Stattman Vela & Price Inc.	16,523	$2.12M	0.4%	+1.8%	0.001%
9/8/2026	Mraz Amerine & Associates Inc.	15,118	$1.94M	0.3%	-0.6%	0.001%
9/8/2026	Allworth Financial LP	208,546	$26.80M	0.1%	-20.7%	0.008%
9/8/2026	Arizona State Retirement System	686,042	$88.16M	0.4%	+0.9%	0.028%
9/8/2026	Edge Wealth Management LLC	123,674	$15.88M	2.5%	+0.2%	0.005%
9/8/2026	West Family Investments Inc.	12,703	$1.63M	0.5%	+1.5%	0.001%
9/8/2026	Waverly Advisors LLC	260,499	$33.47M	0.2%	+0.7%	0.011%
9/8/2026	Bank OZK	21,993	$2.83M	0.9%	-2.5%	0.001%
9/8/2026	Lipe & Dalton	9,883	$1.27M	0.6%	-1.4%	0.000%
9/8/2026	Empirical Finance LLC	93,774	$12.05M	0.5%	+3.1%	0.004%
9/8/2026	Nykredit A S	718,471	$92.32M	0.3%	N/A	0.029%
9/4/2026	Parkside Financial Bank & Trust	25,116	$3.23M	0.2%	-2.7%	0.001%
9/2/2026	MLG Wealth Management DBA Pine Grove Financial Group	3,428	$0.44M	0.0%	-7.9%	0.000%
9/2/2026	Second Line Capital LLC	5,534	$0.72M	0.1%	-5.8%	0.000%
9/2/2026	Range Advisory LLC	6,452	$0.83M	0.1%	+31.3%	0.000%
8/28/2026	Cornerstone Financial Management LLC	965	$0.12M	0.1%	+17.4%	0.000%
8/27/2026	Corient Private Wealth LP	2,391,313	$307.32M	0.4%	-1.5%	0.097%
8/26/2026	HORAN Wealth LLC	46,341	$5.96M	0.7%	+0.1%	0.002%
8/26/2026	Amundi	12,342,274	$1.59B	0.4%	-10.3%	0.500%
8/26/2026	HighTower Advisors LLC	3,679,920	$472.87M	0.5%	+1.2%	0.149%
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	$0.23M	0.1%	N/A	0.000%
8/24/2026	Strategic Financial Services Inc.	18,756	$2.41M	0.1%	-1.3%	0.001%
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	$1M	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%
8/23/2026	Endeavor Private Wealth Inc.	1,999	$0.26M	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	$0.63M	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	$0.35M	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	$0.21M	0.1%	N/A	0.000%
8/22/2026	Rose Capital Advisors LLC	4,482	$0.58M	0.3%	N/A	0.000%
8/22/2026	Compass Financial Management LLC	2,732	$0.35M	0.0%	N/A	0.000%
8/22/2026	NI Acquisitions Company LLC	2,087	$0.27M	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	$0.42M	0.2%	N/A	0.000%
8/22/2026	Tenet Wealth Partners LLC	1,750	$0.23M	0.2%	N/A	0.000%
8/22/2026	Maloon Powers Pitre Higgins & Dennehy LLC	6,865	$0.88M	0.3%	N/A	0.000%
8/22/2026	Markowski Investments	2,585	$0.33M	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	$0.27M	0.2%	-4.2%	0.000%
8/22/2026	Blalock Williams LLC	2,106	$0.27M	0.2%	+7.7%	0.000%
8/22/2026	MOR Wealth Management LLC	5,136	$0.66M	0.3%	N/A	0.000%
8/22/2026	BAM Wealth Management LLC	2,194	$0.28M	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%
8/22/2026	Tudor Financial Inc.	4,288	$0.55M	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	$0.76M	0.2%	-26.1%	0.000%

Data available starting January 2016

Merck & Co., Inc. is a health care company, which engages in the provision of health solutions through its prescription medicines, vaccines, biologic therapies, animal health, and consumer care products. It operates through the following segments: Pharmaceutical, Animal Health, and Other. The Pharmaceutical segment includes human health pharmaceutical and vaccine products. The Animal Health segment discovers, develops, manufactures, and markets animal health products, such as pharmaceutical and vaccine products, for the prevention, treatment and control of disease in livestock, and companion animal species. The Other segment consists of sales for the non-reportable segments of healthcare services. The company was founded in 1891 and is headquartered in Rahway, NJ.

Today's Range

Now: $146.53

$145.74

$147.84

50 Day Range

MA: $138.45

$120.91

$156.54

52 Week Range

Now: $146.53

$77.58

$156.92

Volume

31,138,834 shs

Average Volume

9,812,507 shs

Market Capitalization

$361.50 billion

P/E Ratio

117.22

Dividend Yield

2.32%

Beta

0.21

Who are the company insiders with the largest holdings of Merck & Co., Inc.?: Merck & Co., Inc.'s top insider shareholders include:
Kenneth C Frazier (Chairman)
Kenneth C Frazier (CEO)
Kenneth C Frazier (Insider)
Robert M Davis (CEO)
Kenneth C Frazier (CEO)
Robert M Davis (CFO)
Roger M Perlmutter (Insider)
Robert M Davis (EVP)
Kenneth Frazier (CEO)
Adam H Schechter (EVP)
Learn More about top insider investors at Merck & Co., Inc..
Who are the major institutional investors of Merck & Co., Inc.?: Merck & Co., Inc.'s top institutional shareholders include:
BlackRock Inc. — 9.19%
Wellington Management Group LLP — 3.50%
UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC — 0.79%
Bank of New York Mellon Corp — 0.74%
Amundi — 0.50%
Deutsche Bank AG — 0.48%
Learn More about top institutional investors of Merck & Co., Inc. stock.
Which institutional investors are selling Merck & Co., Inc. stock?: During the previous quarter, MRK stock was sold by these institutional investors:
Jennison Associates LLC
Amundi
UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
Deutsche Bank AG
Van ECK Associates Corp
Bank of New York Mellon Corp
ANTIPODES PARTNERS Ltd
QV Investors Inc.
Within the previous year, company insiders that have sold Merck & Co., Inc. company stock include:
Robert M Davis (CEO)
Richard R Deluca (EVP)
Dean Y Li (VP)
Caroline Litchfield (CFO)
Chirfi Guindo (CMO)
Jennifer Zachary (EVP)
Chirfi Guindo (EVP)
David Michael Williams (EVP)
Johannes Jacobus Oosthuizen (Insider)
David R Maraldo (EVP)
Dalton E Smart III (SVP)
Learn More investors selling Merck & Co., Inc. stock.
Which institutional investors are buying Merck & Co., Inc. stock?: Within the previous quarter, MRK stock was purchased by institutional investors including:
Assenagon Asset Management S.A.
Wellington Management Group LLP
BlackRock Inc.
Nykredit A S
Nykredit A S
VIRGINIA RETIREMENT SYSTEMS ET Al
Mitsubishi UFJ Asset Management Co. Ltd.
Munich Reinsurance Co Stock Corp in Munich