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): $39,001,778.93

Merck & Co., Inc. Insider Trading History Chart

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

^$111.26

▼ -1.045 (-0.93%)

As of 05/8/2026 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
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
8/14/2023	Steven Mizell	EVP	Sell	4,250	$109.01	$463,292.50	22,935
8/3/2023	Steven Mizell	EVP	Sell	4,500	$105.49	$474,705.00	27,185
4/26/2023	Joseph Romanelli	Insider	Buy	3	$113.68	$341.04	20,599
3/24/2023	Joseph Romanelli	Insider	Sell	35	$104.65	$3,662.75	20,596
3/20/2023	Joseph Romanelli	Insider	Buy	136	$105.47	$14,343.92	20,631
2/21/2023	Joseph Romanelli	Insider	Buy	11	$109.20	$1,201.20	20,495

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
5/8/2026	PNC Financial Services Group Inc.	7,530,441	$905.84M	0.5%	-1.2%	0.305%
5/8/2026	Oslo Pensjonsforsikring AS	11,647	$1.40M	0.2%	N/A	0.000%
5/8/2026	HORAN Wealth LLC	46,275	$5.47M	0.5%	+1.9%	0.002%
5/8/2026	DJE Kapital AG	1,306,098	$156.69M	3.5%	N/A	0.053%
5/8/2026	Burling Wealth Partners LLC	26,963	$3.24M	0.5%	-6.7%	0.001%
5/8/2026	Andra AP fonden	364,485	$43.84M	0.5%	-14.9%	0.015%
5/8/2026	Wilkerson Advisory Group LLC	3,645	$0.44M	0.2%	+333.4%	0.000%
5/8/2026	Stone Loft Wealth Management LLC	2,744	$0.33M	0.2%	N/A	0.000%
5/8/2026	Dale Q Rice Investment Management Ltd	3,967	$0.48M	0.4%	-3.7%	0.000%
5/8/2026	Glenview Trust Co	376,892	$45.34M	0.7%	+2.6%	0.015%
5/8/2026	Cura Wealth Advisors LLC	2,610	$0.31M	0.1%	-18.4%	0.000%
5/8/2026	One Charles Private Wealth Services LLC	3,881	$0.47M	0.1%	+11.6%	0.000%
5/8/2026	Summit Global Investments	67,598	$8.13M	0.5%	-5.2%	0.003%
5/8/2026	Cassaday & Co Wealth Management LLC	29,052	$3.50M	0.1%	+248.5%	0.001%
5/8/2026	JMG Financial Group Ltd.	2,777	$0.33M	0.0%	+44.3%	0.000%
5/8/2026	Cutler Investment Counsel LLC	87,631	$10.61M	1.1%	-1.1%	0.004%
5/8/2026	Johnson Financial Group Inc.	22,070	$2.67M	0.1%	-14.7%	0.001%
5/8/2026	Convergence Investment Partners LLC	46,800	$5.63M	0.9%	+16.2%	0.002%
5/8/2026	JSF Financial LLC	2,323	$0.28M	0.1%	+21.6%	0.000%
5/8/2026	Commerzbank Aktiengesellschaft FI	199,356	$23.98M	0.5%	-43.2%	0.008%
5/7/2026	Florida Financial Advisors LLC	3,920	$0.47M	0.1%	+47.9%	0.000%
5/7/2026	Beta Wealth Group Inc.	5,620	$0.68M	0.3%	+7.7%	0.000%
5/7/2026	AlTi Global Inc.	23,514	$2.85M	0.1%	+8.4%	0.001%
5/7/2026	Earned Wealth Advisors LLC	11,856	$1.43M	0.1%	+6.0%	0.000%
5/7/2026	Grant Street Asset Management Inc.	2,120	$0.26M	0.0%	N/A	0.000%
5/7/2026	Basepoint Wealth LLC	1,482	$0.18M	0.1%	-13.3%	0.000%
5/7/2026	Carl P. Sherr & Co. LLC	6,797	$0.82M	0.4%	+6.3%	0.000%
5/7/2026	Hollencrest Capital Management	4,777	$0.58M	0.0%	+5.6%	0.000%
5/7/2026	Meeder Asset Management Inc.	84,741	$10.19M	0.6%	+12.5%	0.003%
5/7/2026	Meeder Advisory Services Inc.	62,281	$7.49M	0.3%	+10.2%	0.003%
5/7/2026	Lowe Brockenbrough & Co. Inc.	91,627	$11.02M	0.5%	-0.7%	0.004%
5/7/2026	Symphony Financial Services Inc.	1,921	$0.23M	0.1%	N/A	0.000%
5/7/2026	Hamel Associates Inc.	92,801	$11.16M	3.2%	-0.4%	0.004%
5/7/2026	Dimensional Fund Advisors LP	15,456,039	$1.86B	0.4%	+23.8%	0.626%
5/7/2026	Human Investing LLC	3,278	$0.39M	0.1%	-22.3%	0.000%
5/7/2026	Balefire LLC	8,819	$1.06M	0.2%	+3.8%	0.000%
5/7/2026	Parallel Advisors LLC	56,169	$6.76M	0.1%	+7.6%	0.002%
5/7/2026	Boston Common Asset Management LLC	198,680	$23.90M	1.5%	-2.2%	0.008%
5/7/2026	Planning Alternatives Ltd. ADV	3,598	$0.43M	0.1%	+69.2%	0.000%
5/7/2026	Broderick Brian C	22,250	$2.68M	0.5%	+1.2%	0.001%
5/7/2026	KBC Group NV	1,217,611	$146.47M	0.4%	-4.7%	0.049%
5/7/2026	Koss Olinger Consulting LLC	2,174	$0.26M	0.0%	-35.1%	0.000%
5/7/2026	Next Capital Management LLC	1,739	$0.21M	0.1%	N/A	0.000%
5/7/2026	Regimen Wealth LLC	2,649	$0.32M	0.1%	-16.4%	0.000%
5/7/2026	Little House Capital LLC	25,476	$3.06M	0.8%	+87.1%	0.001%
5/7/2026	True North Advisors LLC	4,585	$0.55M	0.1%	-65.3%	0.000%
5/7/2026	SEB Asset Management AB	1,642,285	$197.55M	0.8%	N/A	0.066%
5/7/2026	Swiss National Bank	7,284,151	$876.21M	0.5%	+6.4%	0.295%
5/7/2026	World Equity Group Inc.	10,296	$1.24M	0.3%	+1.2%	0.000%
5/7/2026	Valley Wealth Managers Inc.	47,344	$5.70M	0.4%	-4.3%	0.002%
5/7/2026	AIA Group Ltd	375,724	$45.20M	0.7%	-1.7%	0.015%
5/7/2026	Legacy Wealth Advisors LLC	2,443	$0.29M	0.2%	N/A	0.000%
5/7/2026	Mediolanum International Funds Ltd	513,788	$60.68M	0.6%	-43.9%	0.021%
5/7/2026	Spartan Wealth Advisory Services LLC	2,564	$0.31M	0.0%	N/A	0.000%
5/7/2026	Ascent Wealth Partners LLC	16,833	$2.03M	0.2%	+2.4%	0.001%
5/7/2026	Paces Ferry Wealth Advisors LLC	3,979	$0.48M	0.2%	+3.0%	0.000%
5/6/2026	Jennison Associates LLC	6,249,337	$751.73M	0.5%	+12.4%	0.253%
5/6/2026	Aviance Capital Partners LLC	41,782	$5.03M	0.6%	+7.7%	0.002%
5/6/2026	Annis Gardner Whiting Capital Advisors LLC	8,133	$0.98M	0.2%	-6.6%	0.000%
5/6/2026	German American Bancorp Inc.	3,581	$0.43M	0.0%	N/A	0.000%
5/6/2026	IMA Advisory Services Inc.	19,570	$2.37M	0.2%	-5.3%	0.001%
5/6/2026	Dorsey Wright & Associates	11,225	$1.35M	0.2%	N/A	0.000%
5/6/2026	California Public Employees Retirement System	7,383,088	$888.11M	0.5%	-13.8%	0.299%
5/6/2026	Ceera Investments LLC	4,619	$0.56M	0.2%	N/A	0.000%
5/6/2026	Clifford Swan Investment Counsel LLC	76,120	$9.16M	0.3%	+0.5%	0.003%
5/6/2026	Quadrant Private Wealth Management LLC	30,927	$3.75M	0.6%	+4.6%	0.001%
5/6/2026	Bartlett & CO. Wealth Management LLC	117,337	$13.27M	0.2%	-6.0%	0.005%
5/6/2026	Heartland Bank & Trust Co	16,589	$2M	0.5%	+106.3%	0.001%
5/6/2026	Zhang Financial LLC	23,249	$2.80M	0.1%	+2.0%	0.001%
5/6/2026	Centennial Bank AR	6,929	$0.83M	0.3%	-5.2%	0.000%
5/6/2026	Atlas Wealth LLC	314,776	$37.86M	4.6%	N/A	0.013%
5/6/2026	Simon Quick Advisors LLC	4,946	$0.60M	0.0%	-23.5%	0.000%
5/6/2026	FSA Advisors Inc.	2,097	$0.25M	0.2%	-81.4%	0.000%
5/6/2026	John G Ullman & Associates Inc.	94,272	$11.34M	1.5%	-7.0%	0.004%
5/6/2026	Kera Capital Partners Inc.	19,037	$2.29M	0.3%	-1.1%	0.001%
5/6/2026	Cornerstone Planning Group LLC	2,980	$0.34M	0.0%	+11.0%	0.000%
5/6/2026	Gryphon Financial Partners LLC	13,352	$1.61M	0.2%	+13.9%	0.001%
5/6/2026	Modera Wealth Management LLC	49,014	$5.90M	0.1%	+11.1%	0.002%
5/6/2026	Advisortrust Partners LLC	41,615	$5.01M	2.1%	+7.9%	0.002%
5/6/2026	Forty three Eighteen Advisors LLC	21,894	$2.63M	2.0%	N/A	0.001%
5/6/2026	Assetmark Inc.	232,295	$27.94M	0.1%	+32.8%	0.009%
5/6/2026	PeakShares LLC	4,408	$0.53M	0.5%	-12.2%	0.000%
5/6/2026	Paradigm Capital Management LLC NV	30,469	$3.67M	3.4%	-1.6%	0.001%
5/6/2026	Gould Asset Management LLC CA	2,882	$0.35M	0.1%	+3.4%	0.000%
5/6/2026	Main Street Group LTD	515	$62K	0.0%	N/A	0.000%
5/6/2026	Angeles Wealth Management LLC	37,583	$4.55M	0.2%	+9.1%	0.002%
5/6/2026	AXS Investments LLC	408	$49K	0.0%	-22.6%	0.000%
5/6/2026	Brown Shipley& Co Ltd	35,849	$4.31M	2.6%	-3.6%	0.001%
5/6/2026	Clearstead Trust LLC	19,453	$2.34M	0.4%	+1.1%	0.001%
5/6/2026	Financiere des Professionnels Fonds d investissement inc.	95,016	$11.43M	0.7%	+29.7%	0.004%
5/6/2026	Bessemer Group Inc.	1,081,897	$130.14M	0.2%	-47.3%	0.044%
5/6/2026	Avalon Trust Co	13,259	$1.60M	0.1%	+5.6%	0.001%
5/6/2026	Gerald Baker Financial Group LLC	12,878	$1.55M	0.5%	N/A	0.001%
5/6/2026	Allspring Global Investments Holdings LLC	672,535	$81.27M	0.1%	-25.5%	0.027%
5/6/2026	One Day In July LLC	4,012	$0.48M	0.0%	-5.6%	0.000%
5/6/2026	Independent Financial Group LLC	37,402	$4.50M	0.1%	N/A	0.002%
5/6/2026	Enterprise Financial Services Corp	18,627	$2.24M	1.1%	+0.6%	0.001%
5/6/2026	Prosperity Consulting Group LLC	25,632	$3.08M	0.1%	-38.5%	0.001%
5/6/2026	Aware Super Pty Ltd as trustee of Aware Super	143,224	$17.23M	0.3%	N/A	0.006%
5/6/2026	W.G. Shaheen & Associates DBA Whitney & Co	109,150	$13.13M	1.1%	-1.1%	0.004%

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: $111.26

$111.18

$113.01

50 Day Range

MA: $117.07

$109.33

$123.45

52 Week Range

Now: $111.26

$73.31

$125.14

Volume

5,710,334 shs

Average Volume

9,559,194 shs

Market Capitalization

$274.78 billion

P/E Ratio

31.34

Dividend Yield

3.03%

Beta

0.18

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:
Bank of New York Mellon Corp — 0.76%
Dimensional Fund Advisors LP — 0.63%
PNC Financial Services Group Inc. — 0.30%
California Public Employees Retirement System — 0.30%
Swiss National Bank — 0.29%
Swedbank AB — 0.29%
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:
Cardano Risk Management B.V.
California Public Employees Retirement System
Bessemer Group Inc.
Sumitomo Mitsui Trust Group Inc.
Swedbank AB
Bank of New York Mellon Corp
Mediolanum International Funds Ltd
Ferguson Wellman Capital Management 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)
David Michael Williams (EVP)
Johannes Jacobus Oosthuizen (Insider)
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:
Dimensional Fund Advisors LP
Diamant Asset Management Inc.
SEB Asset Management AB
DJE Kapital AG
Fifth Third Bancorp
Jennison Associates LLC
Swiss National Bank
Fjarde AP Fonden Fourth Swedish National Pension Fund