Stock Overview

Alnylam Pharmaceuticals Inc (ALNY)

NASDAQ · Healthcare · Biotechnology

Alnylam Pharmaceuticals Inc is a Healthcare company with a market capitalization of $30.70B and a trailing P/E ratio of 40.0.

Market Cap
$30.70B
P/E (TTM)
40.0
Forward P/E
26.4
Price/Sales
6.4
Price/Book
22.7
EV/EBITDA
26.0
Beta
0.28
EPS (TTM)
$5.74
Profit Margin
13.5%
ROE
96.6%
Short % of Float
4.3%
Days to Cover
3.2
52W High
$491.22
52W Low
$205.48

5-Year Price History

Latest Annual Financials · FY ending December 31, 2025

Revenue
$3.71B
Gross Profit
$3.04B
Operating Income
$501.58M
Net Income
$313.75M
Free Cash Flow
$465.38M
Total Debt
$1.05B
Cash & Equivalents
$1.66B
Shareholder Equity
$789.18M

Recent Quarterly Earnings (EPS)

QuarterReportedActual EPSEstimateSurprise
Q1 2026April 30, 2026$1.99$1.47+35.4%
Q4 2025February 12, 2026$1.25$1.50-16.7%
Q3 2025October 30, 2025$2.90$1.75+65.7%
Q2 2025July 31, 2025$0.32$0.15+113.3%
Q1 2025May 1, 2025$-0.01$-0.37+97.3%
Q4 2024February 13, 2025$0.06$-0.14+142.9%

Short Interest

FINRA-reported short interest for semi-monthly settlement dates, published about nine business days after each settlement. Share counts are adjusted to the current split basis.

SettlementShares Short% of Shares OutDays to CoverChange
July 15, 20265,773,3734.18%3.2-0.5%
June 30, 20265,799,7884.20%4.2+6.7%
June 15, 20265,437,3373.93%4.8+2.6%
May 29, 20265,300,0153.83%5.8-1.8%
May 15, 20265,398,8043.91%5.1+13.1%
April 30, 20264,773,2143.45%4.0-5.2%
April 15, 20265,034,0633.69%5.1-0.4%
March 31, 20265,056,4083.71%4.0+15.7%

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Frequently Asked Questions

What is Alnylam Pharmaceuticals Inc's market cap?

As of August 13, 2026, Alnylam Pharmaceuticals Inc (ALNY) has a market capitalization of $30.70B.

What is Alnylam Pharmaceuticals Inc's P/E ratio?

Alnylam Pharmaceuticals Inc trades at a trailing price-to-earnings (P/E) ratio of 40.0. Its forward P/E is 26.4.

Does Alnylam Pharmaceuticals Inc pay a dividend?

Alnylam Pharmaceuticals Inc does not currently pay a dividend.

What sector is ALNY in?

Alnylam Pharmaceuticals Inc is in the Healthcare sector, specifically the Biotechnology industry.

What is Alnylam Pharmaceuticals Inc's short interest?

As of the July 15, 2026 FINRA settlement, 5,773,373 ALNY shares were sold short, or 4.18% of shares outstanding. Days to cover: 3.2. FINRA publishes short interest twice a month, about nine business days after each settlement date.

What was Alnylam Pharmaceuticals Inc's revenue?

In its latest reported fiscal year (ending December 31, 2025), Alnylam Pharmaceuticals Inc reported revenue of $3.71B and net income of $313.75M.

Ask your own questions about ALNY

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Data as of August 13, 2026. Figures are sourced from company filings and market data and may be delayed or revised. For informational purposes only — not investment advice.