What is Biogen Inc.'s Shariah compliance score?

Biogen Inc. (BIIB) has a Shariah compliance score of 65/100 (Grade: B, Acceptable) based on AAOIFI screening standards. Scores above 70 typically indicate strong compliance. The score factors in business activity screening and financial ratio analysis including debt levels, interest-bearing deposits, and prohibited income percentages. View the full breakdown at HalalScreener.app.

Does Biogen Inc. pass AAOIFI screening?

Biogen Inc. (BIIB) passes AAOIFI Shariah screening. AAOIFI requires: (1) no primary involvement in prohibited activities like alcohol, gambling, or conventional banking, (2) debt-to-market-cap below 30% (BIIB: 19.6%), (3) interest-bearing deposits below 30%, and (4) prohibited income below 5%. HalalScreener provides free AAOIFI screening for 6,200+ stocks at halalscreener.app.

How much purification is needed for Biogen Inc. stock?

Muslim investors purify the portion of dividends and realized gains that comes from non-permissible income by donating it to charity. HalalScreener's purification calculator at halalscreener.app/en/purification computes the exact percentage and amount for Biogen Inc. (BIIB) using the latest financial data.

Where can I screen Biogen Inc. for Shariah compliance for free?

HalalScreener (halalscreener.app) offers free Shariah compliance screening for Biogen Inc. (BIIB) and 5,100+ other US-listed stocks, ETFs, and 100+ cryptocurrencies. The screening uses AAOIFI Standard No. 21 and shows the verdict, compliance grade, score, and debt ratio free. No credit card or signup required for basic screening; the full ratio breakdown is part of Pro. HalalScreener also includes an AI Islamic Scholar for follow-up questions about BIIB's compliance across different madhabs (Hanafi, Shafi'i, Maliki, Hanbali, Ja'fari).

BIIB: Is Biogen Inc. Halal?

Biogen Inc.

NASDAQHealthcareUS

$222.67

+0.80%

Market Cap: 32.9B

Compliance Status

Halal

Screened on Aug 31, 2026 · AAOIFI Standard 21

Acceptable

65Score

Is Biogen Inc. (BIIB) halal? Halal. Based on AAOIFI screening, Biogen Inc. passes both qualitative (business activity) and quantitative (financial ratio) screens with a compliance score of 65/100 (Grade: B).

Quote this verdict

HalalScreener rates Biogen Inc. (BIIB) Halal, 65/100, grade B under AAOIFI Standard 21, screened Aug 31, 2026. Source: https://halalscreener.app/en/stock/BIIB

AvoidBorderlineClean

Business activity

What the company sells is permissible.

Passed

Company debt

Within the limit

How much the company borrows, compared to its total value. AAOIFI allows up to 30%.

19.6% of 30.0% limit

What this means for you

You can own BIIB

It passes both the business activity and financial ratio screens under AAOIFI Standard 21.

Purification amount is Pro

We have screened BIIB's prohibited income, but the exact share you would need to purify is part of Pro.

About Biogen Inc.

Biogen Inc. is a leading biotechnology firm dedicated to the discovery, development, production, and distribution of treatments for complex neurological and neurodegenerative conditions. Its established portfolio includes a range of medications addressing multiple sclerosis (MS), such as TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA. For spinal muscular atrophy (SMA), Biogen provides SPINRAZA, while FUMADERM is available for the treatment of plaque psoriasis. Among its other key offerings is ADUHELM, specifically developed for Alzheimer's disease. The company also markets a selection of biosimilar drugs, including BENEPALI (an etanercept biosimilar akin to ENBREL), IMRALDI (an adalimumab biosimilar comparable to HUMIRA), and FLIXABI (an infliximab biosimilar referencing REMICADE). Further extending its therapeutic reach, Biogen supplies RITUXAN, prescribed for conditions like non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, certain types of ANCA-associated vasculitis, and pemphigus vulgaris. RITUXAN HYCELA targets non-Hodgkin's lymphoma and CLL, and GAZYVA is utilized for CLL and follicular lymphoma. OCREVUS addresses both relapsing and primary progressive forms of MS, complementing the company's broader efforts in anti-CD20 therapies. The company maintains a robust research and development pipeline, featuring numerous investigational therapies. These candidates are designed to tackle a wide spectrum of conditions, including multiple sclerosis and neuroimmunological disorders (e.g., BIIB135, BIIB061, BIIB091, BIIB107), Alzheimer's disease and other forms of dementia (e.g., Aducanumab, Lecanemab, BIIB076, BIIB080), neuromuscular disorders (e.g., BIIB067, BIIB078, BIIB105, BIIB100, BIIB110), Parkinson's disease and related movement disorders (e.g., BIIB124, BIIB094, BIIB118, BIIB101, BIIB122), neuropsychiatric conditions (e.g., BIIB125, BIIB104), immunology-related illnesses (e.g., Dapirolizumab pegol, BIIB059), acute neurological events (e.g., BIIB093, BIIB131), and neuropathic pain (e.g., BIIB074). Additionally, several biosimilar candidates, such as BYOOVIZ, BIIB800, and SB15, are progressing through various developmental stages. Biogen actively engages in strategic collaborations and licensing arrangements with various partners, including Acorda Therapeutics, Inc., Alkermes Pharma Ireland Limited, Denali Therapeutics Inc., Eisai Co., Ltd., Genentech, Inc., Neurimmune SubOne AG, Ionis Pharmaceuticals, Inc., Samsung Bioepis Co., Ltd., Sangamo Therapeutics, Inc., and Sage Therapeutics, Inc. Established in 1978, Biogen Inc. maintains its corporate headquarters in Cambridge, Massachusetts.

Sector: Healthcare · Industry: Drug Manufacturers - General

Shariah Compliance Status

AAOIFI Standard 21Updated Aug 31, 2026

Compliance History

Halal, unchanged since May 2026.

No status changes recorded since we began tracking.

Tracked since May 2026. Updates automatically on each re-screen.

Fiscal: Q1 2026Data source: EDGAR

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Frequently Asked Questions

Is Biogen Inc. (BIIB) halal to invest in?

Based on AAOIFI Standard 21 screening, Biogen Inc. (BIIB) is rated Halal with a compliance grade of B (Acceptable). It passes both the business activity screen (no primary involvement in prohibited sectors) and the quantitative financial ratio screen (debt, interest deposits, and prohibited income all below AAOIFI thresholds).

Why did Biogen Inc. get a B compliance rating?

Biogen Inc. (BIIB) received a grade of B (Acceptable) based on three AAOIFI Standard 21 financial ratios: debt-to-market-cap of 19.6% (limit 30%). The grade reflects the margin of safety across all three ratios relative to their thresholds.

What could change Biogen Inc.'s Shariah verdict?

Biogen Inc.'s verdict is re-evaluated at each annual re-screen. Three events could change it: (1) the debt-to-market-cap ratio crossing 30%, typically from new debt issuance or a major drop in share price; (2) interest-bearing deposits exceeding 30% of market cap; or (3) prohibited revenue (alcohol, gambling, conventional finance, etc.) exceeding 5% of total revenue. Verdict flips are tracked in the compliance history section above.

How often is Biogen Inc. re-screened for Shariah compliance?

Biogen Inc. (BIIB) is re-screened annually using the most recent full-year financial data from SEC filings. HalalScreener also triggers an on-demand re-screen whenever the stored data is more than 7 days old, ensuring the ratios reflect the latest available financial statements. Last screened: Aug 31, 2026.

Screened according to AAOIFI Standard No. 21 · For informational purposes only. Consult a qualified Islamic finance advisor before investing.

Disclaimer: This screening is for informational purposes only and does not constitute financial, legal, or religious advice. Compliance is evaluated using AAOIFI financial standards (debt, deposits, and prohibited income ratios) and publicly available data. Ethical, political, social, or environmental considerations are outside the scope of this screening. Individual scholars and methodologies may differ. Always consult a qualified Islamic finance advisor before making investment decisions.