MRK - Merck and Company, Inc.

Amount Invested	Date	# of Shares Purchased	# of Shares on 12-29-23	Stock Price on 12-29-23	Total Value on 12-29-23
$5,000	1-2-1975	74.3494	11417.9942	$109.02	$1,244,789.73**
$5,000	1-2-1980	70.6714	9562.9006	$109.02	$1,042,547.42**
$5,000	1-2-1985	53.6913	6156.1017	$109.02	$671,138.21**
$5,000	1-2-1990	63.5930	1084.0194	$109.02	$118,179.79**
$5,000	1-3-1995	130.7190	652.9784	$109.02	* $71,187.70**
$5,000	1-3-2000	73.9372	167.7061	$109.02	$18,283.32**
$5,000	1-3-2005	159.9488	318.9133	$109.02	$34,767.93**
$5,000	1-4-2010	135.0986	216.8748	$109.02	$23,643.69**
$5,000	1-2-2015	87.4279	115.3992	$109.02	$12,580.82**
$5,000	1-2-2020	54.3242	61.5720	$109.02	$6,712.58**

**In 2021, Merck (MRK) completed its spinoff of Organon & Company (ORG). Organon would have added $16,944.75 to a 1975 investment, $14,191.72 to a 1980 investment, $9,135.90 to a 1985 investment, $1,608.73 to a 1990 investment, $969.05 to a 1995 investment, $248.88 to a 2000 investment, $473.28 to a 2005 investment, $321.85 to a 2010 investment, $171.26 to a 2015 investment, and $91.38 to a 2020 invesmtment.

When calculating the total return for Merck Company, the additional value from the Medco Health and the Organon spinoff should be included. Merck has produced some steady returns over most investment time periods. A $5,000 investment at the beginning of 1975 would be well over $1.3 million by the end of 2023. In more recent years, a $5,000 investment in 2010 would have gained nearly 500% by the end of 2023

*In August 2003, Medco Health Solutions was spun off Merck Company.
*In 2012, Medco was purchased by Express Scripts for $28.80 in cash and .81 ESRX shares.

1975 Investment: Additional $94,990.36 in Medco Health not included in total value.
1980 Investment: Additional $79,557.17 in Medco Health not included in total value.
1985 Investment: Additional $51,214.80 in Medco Health not included in total value.
1990 Investment: Additional $9,018.34 in Medco Health not included in total value.
1995 Investment: Additional $5,432.36 in Medco Health not included in total value.
2000 Investment: Additional $1,395.21 in Medco Health not included in total value.

All calculations assume all dividends are reinvested to purchase additional shares. Taxes and commissions are not factored into calculations. Data is property of 1stock1 and written permission must be granted before redistributing any data (in part or in whole).