Stock price history for Alnylam Pharmaceuticals (ALNY)

Highest end of day price: £366.99 GBp on 2025-10-20

Lowest end of day price: £2.95 GBp on 2004-08-16

Stock price history of Alnylam Pharmaceuticals from 2004 to 2026

Annual Stock Price Performance

Year	Performance
2026	-7.74%
2025	70.21%
2024	20.72%
2023	-18.06%
2022	36.65%
2021	32.38%
2020	12.41%
2019	58.29%
2018	-44.70%
2017	228.80%
2016	-59.75%
2015	-3.71%
2014	51.89%
2013	235.42%
2012	110.74%
2011	-18.58%
2010	-45.64%
2009	-29.94%
2008	-14.49%
2007	34.82%
2006	65.12%
2005	75.73%
2004	6.71%

Stock price for similar companies or competitors

Company	Stock price	Change 1d%	Country
Arrowhead Pharmaceuticals ARWR	£49.84	1.21%	🇺🇸 USA
Regeneron Pharmaceuticals REGN	£555.54	-1.40%	🇺🇸 USA
Sarepta Therapeutics SRPT	£16.03	-5.88%	🇺🇸 USA
OPKO Health OPK	£0.96	-1.54%	🇺🇸 USA
Regulus Therapeutics RGLS	£6.10	0.00%	🇺🇸 USA
Novartis NVS	£107.13	-1.90%	🇨🇭 Switzerland
Sanofi SNY	£35.49	-0.79%	🇫🇷 France
Teva Pharmaceutical Industries TEVA	£24.34	-0.17%	🇮🇱 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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