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ALNY
Alnylam Pharmaceuticals, Inc.
stock NASDAQ

Market Open

Aug 20, 2026 3:46:16 PM EDT

228.96USD-5.628%(-13.65)1,261,349

217.70Bid 244.44Ask 26.74Spread

Pre-market

Aug 20, 2026 9:19:30 AM EDT

241.13USD-0.610%(-1.48)515

After-hours

Aug 18, 2026 4:59:30 PM EDT

229.03USD+0.157%(+0.36)0

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Market Cap

30.71B

CEO

John Maraganore

Headquarters

Cambridge, Massachusetts, USA

Industry

Biotechnology

REGN MDCO NVS SNY TEVA SRPT IONS ARWR OPK XLV

ALNY Stats

Avg. Vol. 10 Day

1,646,908

Avg. Vol. 30 Day

2,206,082

Employees

749

Market Cap

30,708,296,060

Shares Out.

133,809,118

On/Off Exchange

51%/49%

6 Month Beta

0.15

1 Year Beta

0.31

2 Year Beta

0.78

3 Year Beta

0.69

52 Week Low

197.81

52 Week High

495.55

SMA50

269.11

SMA200

333.15

1 Week

+1.05%

1 Month

-15.84%

3 Month

-23.11%

6 Month

-31.74%

1 Year

-49.93%

2 Year

-18.26%

5 Year

+16.04%

Profile

alnylam is developing an entirely new class of innovative medicines based on a breakthrough discovery in biology known as rna interference, or rnai. with rnai technology, we have the opportunity to treat disease and impact the lives of patients in a fundamentally new way by silencing disease-causing genes upstream of today's medicines.

ALNY Stock Summary

Alnylam Pharmaceuticals, Inc. (NASDAQ:ALNY) stock price today is $228.96, and today's volume is 1,261,349. ALNY is down -5.628% today. The 30 day average volume is 2,206,082. ALNY market cap is 30.71B with 133,809,118 shares outstanding.