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Biogen Inc. (BIIB)
NASDAQ:BIIB
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Biogen (BIIB) AI Stock Analysis

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BIIB

Biogen

(NASDAQ:BIIB)

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Neutral 68 (OpenAI - 5.2)
Rating:68Neutral
Price Target:
$224.00
▲(10.79% Upside)
Action:Downgraded
Date:07/29/26
BIIB scores in the upper-middle range primarily due to strong cash generation and an improving leverage profile, supported by a constructive earnings update with raised 2026 guidance and growth-portfolio momentum. The score is held back by compressed/volatile profitability versus prior highs, a valuation that is not clearly discounted at ~22x earnings with no dividend yield provided, and only moderate confidence in momentum signals beyond the moving-average uptrend.
Positive Factors
Free cash flow strength
Biogen's consistently positive free cash flow and TTM FCF roughly equaling net income show durable cash conversion. This funds R&D, bolt-on M&A, and debt reduction without reliance on equity, supporting strategic flexibility and investment capacity over the next 2–6 months.
Negative Factors
Compressed profitability
A meaningful decline in operating and net margins versus prior highs reduces return on invested capital and the firm's buffer against setbacks. Sustained lower profitability constrains reinvestment capacity and heightens sensitivity to pricing, access pressures, and competitive threats over the medium term.
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Positive Factors
Negative Factors
Free cash flow strength
Biogen's consistently positive free cash flow and TTM FCF roughly equaling net income show durable cash conversion. This funds R&D, bolt-on M&A, and debt reduction without reliance on equity, supporting strategic flexibility and investment capacity over the next 2–6 months.
Read all positive factors

Biogen Key Performance Indicators (KPIs)

Any
Any
Revenue by Geography
Revenue by Geography
Breaks down Biogen’s sales across regions, showing where its drugs earn the most revenue and where growth or regulatory risk is concentrated. Useful for spotting heavy reliance on the U.S. market, exposure to differing reimbursement rules, and which regions offer room to expand with new approvals or label changes.
Chart InsightsInternational revenue has trended down since the 2021 peak, with a sharp end‑2025 trough and only partial recovery into Q1 2026 — management points to shipment‑timing, VAT and inventory lumpiness as drivers. Growth‑product strength (LEQEMBI, SKYCLARYS, high‑dose SPINRAZA) is lifting overall results but is regionally concentrated; expected contract‑manufacturing revenue in H1 2026 and the Apellis deal will temporarily reshape and bolster the geographic mix, yet near‑term financing/charge and commercialization risks mean a durable international rebound is not assured.
Data provided by:The Fly

Biogen (BIIB) vs. SPDR S&P 500 ETF (SPY)

Biogen Business Overview & Revenue Model

Company Description
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 ad...
How the Company Makes Money
Biogen makes money primarily by selling prescription medicines and earning related revenue from commercialization rights. Its core revenue stream is net product revenue from branded therapies sold to wholesalers, specialty pharmacies, hospitals, a...

Biogen Earnings Call Summary

Earnings Call Date:Jul 29, 2026
(Q2-2026)
|
% Change Since: |
Next Earnings Date:Oct 29, 2026
Earnings Call Sentiment Positive
The call presented a broadly constructive commercial and pipeline narrative: top-line momentum (Q2 revenue up 3% and strong growth-portfolio performance), immediate contributions from the Apellis acquisition (SYFOVRE and Empaveli) and an active late-stage registrational cadence provide tangible near‑ and mid‑term growth catalysts. Offsetting these positives are notable near-term costs, one-time IPR&D/milestone charges, financing-related EPS dilution in 2026, and elevated leverage following the acquisition. Management emphasized strong execution, multiple upcoming data readouts, and guidance improvement, while acknowledging access, competitive and scientific risks.
Positive Updates
Total Revenue and Core Pharmaceuticals Growth
Total revenue for Q2 2026 was $2.7 billion, up 3% year-over-year. Core pharmaceutical revenue was $1.8 billion, up 4% year-over-year and 12% quarter-over-quarter, driven by the growth product portfolio.
Negative Updates
Increased Operating Expenses and One-Time Charges
Non-GAAP core operating expenses (combined R&D and SG&A) increased 20% year-over-year in Q2 2026, reflecting approximately $95 million of Apellis operating expenses plus investments in late‑stage programs. The quarter included $164 million of acquired IPR&D and milestone charges (e.g., $100M to TJ Bio, $45M Ionis milestone, $15M Ionis upfront).
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Q2-2026 Updates
Negative
Total Revenue and Core Pharmaceuticals Growth
Total revenue for Q2 2026 was $2.7 billion, up 3% year-over-year. Core pharmaceutical revenue was $1.8 billion, up 4% year-over-year and 12% quarter-over-quarter, driven by the growth product portfolio.
Read all positive updates
Company Guidance
Biogen raised its 2026 outlook, noting a 60‑point increase in underlying-business guidance and moving total revenue guidance from a mid‑single‑digit decline to a mid‑single‑digit increase; updated full‑year non‑GAAP diluted EPS guidance is $12.00–$13.00. Management expects H2 2026 core operating expenses of $2.65–$2.70 billion, noted Q2 core OpEx rose 20% YoY (including roughly $95 million of Apellis OpEx), and recorded $164 million of acquired IPR&D/milestone charges in Q2 (including $100M to TJ Bio, $45M milestone to Ionis, $15M Ionis upfront). The Apellis deal generated ~$128 million of SYFOVRE/Empaveli revenue post‑close, is expected to cause ~$120–$130 million of other income/expense impact in both 2026 and 2027 (interest/foregone interest), about a $0.85 non‑GAAP EPS dilution in 2026 from financing (with the transaction accretive in 2027), and the company targets at least $250 million of run‑rate synergies by end‑2027; the guidance also incorporates approximately a $3.00 non‑GAAP EPS impact from IPR&D/milestone charges and updated tax and operating assumptions.

Biogen Financial Statement Overview

Summary
Overall fundamentals are solid but mixed. Cash flow is a standout (strong, consistently positive free cash flow and good cash conversion), and the balance sheet has improved with declining debt-to-equity. Offsetting this, the income statement shows pressured profitability versus 2022 (lower net/operating margins) and uneven revenue momentum, keeping the financial picture in the upper-middle range rather than strong.
Income Statement
58
Neutral
Balance Sheet
72
Positive
Cash Flow
78
Positive
BreakdownTTMDec 2025Dec 2024Dec 2023Dec 2022Dec 2021
Income Statement
Total Revenue9.95B9.81B9.68B9.84B10.17B10.98B
Gross Profit6.74B6.91B7.37B7.30B7.90B8.87B
EBITDA1.67B3.10B3.00B2.38B3.54B3.92B
Net Income835.09M1.29B1.63B1.16B3.05B1.56B
Balance Sheet
Total Assets32.09B29.44B28.05B26.84B24.55B23.88B
Cash, Cash Equivalents and Short-Term Investments1.28B3.82B2.38B1.05B4.89B3.80B
Total Debt8.36B6.95B6.63B7.34B6.61B7.60B
Total Liabilities13.24B11.18B11.33B12.05B11.17B12.92B
Stockholders Equity18.85B18.26B16.72B14.80B13.40B10.90B
Cash Flow
Free Cash Flow2.97B2.05B2.52B1.24B1.14B3.38B
Operating Cash Flow2.88B2.20B2.88B1.55B1.38B3.64B
Investing Cash Flow-5.32B-1.37B-799.20M-4.09B1.59B-563.70M
Financing Cash Flow1.04B-301.90M-683.50M137.00M-1.76B-2.09B

Biogen Technical Analysis

Technical Analysis Sentiment
Positive
Last Price202.19
Price Trends
50DMA
203.06
Positive
100DMA
195.05
Positive
200DMA
186.08
Positive
Market Momentum
MACD
1.63
Negative
RSI
56.35
Neutral
STOCH
59.01
Neutral
Evaluating momentum and price trends is crucial in stock analysis to make informed investment decisions. For BIIB, the sentiment is Positive. The current price of 202.19 is below the 20-day moving average (MA) of 204.86, below the 50-day MA of 203.06, and above the 200-day MA of 186.08, indicating a bullish trend. The MACD of 1.63 indicates Negative momentum. The RSI at 56.35 is Neutral, neither overbought nor oversold. The STOCH value of 59.01 is Neutral, not indicating any strong overbought or oversold conditions. Overall, these indicators collectively point to a Positive sentiment for BIIB.

Biogen Risk Analysis

Biogen disclosed 30 risk factors in its most recent earnings report. Biogen reported the most risks in the "Finance & Corporate" category.
Finance & Corporate - Financial and accounting risks. Risks related to the execution of corporate activity and strategy
Latest Risks Added 0 New Risks

Biogen Peers Comparison

Overall Rating
UnderperformOutperform
Sector (51)
Financial Indicators
Name
Overall Rating
Market Cap
P/E Ratio
ROE
Dividend Yield
Revenue Growth
EPS Growth
75
Outperform
$225.00B25.7689.32%2.61%9.89%31.69%
74
Outperform
$130.12B14.2446.75%3.84%3.13%83.17%
72
Outperform
$101.04B15.4728.35%3.50%8.82%48.32%
70
Outperform
$168.47B-53.13-16.28%2.49%6.05%-151.43%
68
Neutral
$30.86B37.094.52%0.53%-45.79%
64
Neutral
$439.59B70.68-136.63%2.63%10.39%68.16%
51
Neutral
$7.86B-0.30-43.30%2.27%22.53%-2.21%
* Healthcare Sector Average
Performance Comparison
Ticker
Company Name
Price
Change
% Change
BIIB
Biogen
210.65
75.71
56.11%
AMGN
Amgen
417.84
136.02
48.27%
BMY
Bristol-Myers Squibb
64.65
19.03
41.71%
GILD
Gilead Sciences
138.14
22.14
19.09%
GSK
GlaxoSmithKline
50.45
12.62
33.37%
ABBV
AbbVie
250.82
52.30
26.34%

Biogen Corporate Events

Executive/Board ChangesShareholder Meetings
Biogen Shareholders Back Board, Auditor and Pay Policies
Positive
Jun 10, 2026
On June 9, 2026, Biogen Inc. held its 2026 Annual Meeting of Stockholders, where shareholders elected ten directors, including CEO Christopher A. Viehbacher, to one-year terms ending at the 2027 annual meeting. The voting results showed broad supp...
Business Operations and StrategyDelistings and Listing ChangesM&A TransactionsPrivate Placements and Financing
Biogen Completes Apellis Acquisition to Strengthen Growth
Positive
May 14, 2026
On May 14, 2026, Biogen completed its approximately $5.3 billion acquisition of Apellis Pharmaceuticals after a tender offer that expired one minute after 11:59 p.m. Eastern Time on May 13, 2026, with about 82.4% of Apellis shares validly tendered...
Glossary
BuyA stock rated as a "Buy" is expected to perform better than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock is likely to deliver higher returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
HoldA stock rated as a "Hold" is expected to perform in line with the overall market or a specific benchmark. This rating indicates that the stock is neither particularly compelling nor unfavorable for investment. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
SellA stock rated as a "Sell" is expected to perform worse than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock may deliver lower returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.

Disclaimer

This AI Analyst Stock Report is automatically generated by our AI systems using advanced algorithms and publicly available financial, technical, and market data. While the information provided aims to be accurate and insightful, it is intended for informational purposes only and should not be considered financial advice. Any content created by an AI (Artificial Intelligence) system may contain inaccuracies and/or contain errors. Investing in stocks carries inherent risks, and past performance is not indicative of future results. This report does not account for your personal financial circumstances, objectives, or risk tolerance. Always conduct your own research or consult with a qualified financial advisor before making investment decisions. The analysis and recommendations provided are based on historical and current data and may not fully reflect future market conditions or unexpected developments. Neither the creators of this report nor its affiliated entities guarantee the accuracy, completeness, or reliability of the information presented. Use this report at your own discretion and risk.Date of analysis: Jul 29, 2026