Alnylam Pharmaceuticals (ALNY) - Market capitalization

Market cap: $53.43 Billion USD

As of December 2025 Alnylam Pharmaceuticals has a market cap of $53.43 Billion USD. This makes Alnylam Pharmaceuticals the world's 434th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Alnylam Pharmaceuticals from 2004 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	$53.43 B	74.09%
2024	$30.69 B	27.78%
2023	$24.02 B	-17.84%
2022	$29.23 B	44.16%
2021	$20.28 B	34.32%
2020	$15.10 B	16.87%
2019	$12.92 B	75.15%
2018	$7.37 B	-41.45%
2017	$12.59 B	292.16%
2016	$3.21 B	-59.89%
2015	$8.01 B	6.97%
2014	$7.48 B	82.71%
2013	$4.09 B	327.85%
2012	$0.95 B	175.09%
2011	$0.34 B	-16.59%
2010	$0.41 B	-43.36%
2009	$0.73 B	-28.02%
2008	$1.02 B	-13.62%
2007	$1.18 B	49.54%
2006	$0.79 B	207.77%
2005	$0.25 B	78.85%
2004	$0.14 B

End of Day market cap according to different sources

On Dec 10th, 2025 the market cap of Alnylam Pharmaceuticals was reported to be:

$53.43 Billion USD

by Nasdaq

$53.43 Billion USD

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Arrowhead Pharmaceuticals ARWR	$9.52 B	-82.18%	🇺🇸 USA
Regeneron Pharmaceuticals REGN	$76.96 B	44.04%	🇺🇸 USA
Sarepta Therapeutics SRPT	$2.32 B	-95.65%	🇺🇸 USA
OPKO Health OPK	$1.08 B	-97.96%	🇺🇸 USA
Regulus Therapeutics RGLS	$0.56 B	-98.94%	🇺🇸 USA
Novartis NVS	$251.72 B	371.09%	🇨🇭 Switzerland
Sanofi SNY	$117.79 B	120.45%	🇫🇷 France
Teva Pharmaceutical Industries TEVA	$34.18 B	-36.02%	🇮🇱 Israel

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Alnylam Pharmaceuticals (ALNY)

Market cap: $53.43 Billion USD