Biogen Inc. · BIIB · FY2026 Q2 · Calendar Q3 2026

BIIB Raises Guidance as Growth Portfolio Broadens Beyond MS

The supplied analysis supports a more constructive operating trajectory for BIIB: growth products now exceed the legacy MS franchise, high-dose SPINRAZA conversion is ahead of internal expectations, and management raised guidance. The thesis remains dependent on commercial access, Apellis execution, and clinical pipeline delivery.

Reported Before market openNASDAQHealthcare $33.30B market cap
100quality score

Earnings scorecard

Reported versus consensus
Reported EPS $3.60 Consensus $2.94
EPS surprise +22.4% Reported versus consensus
Reported revenue $2.74B Consensus $2.46B
Revenue surprise +11.2% Reported versus consensus

Market reaction

prior-close to event-session close
Stock move +1.8% Event window
SPY move -1.5% Same window
Abnormal move +3.3% Stock minus SPY
Volume 1.7× Versus trailing sessions
Subsequent drift +5.7% Up to 20 sessions
BIIBSPY benchmark

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Transcript intelligence

What changed

Compared with the prior quarter, management moved from maintained guidance to raised guidance, while the Apellis transaction closed and its assets contributed to the growth portfolio. The Q2 analysis also identified faster-than-expected SPINRAZA conversion and the launch of LEQEMBI IQLIK home dosing as new or strengthened drivers.

Guidance delta

Management raised full-year guidance to a mid-single-digit increase in revenue; the analysis also notes a diluted non-GAAP EPS impact of $0.85 in 2026 and expected accretion in 2027.

Key takeaways

  • Management said high-dose SPINRAZA conversion is running faster than internal expectations across markets.
  • LEQEMBI IQLIK home dosing and the acquired SYFOVRE and Empaveli franchises are central to the growth portfolio.
  • The company highlighted five late-stage readouts across lupus, AMR, and Dravet syndrome.
  • The outlook is stronger, but reimbursement, integration, competition, and clinical execution remain key variables.

Management priorities

  • Continue global rollout and patient conversion for high-dose SPINRAZA.
  • Launch LEQEMBI IQLIK with field-team training and payer engagement.
  • Integrate Apellis assets while supporting SYFOVRE and Empaveli growth.
  • Advance late-stage studies and add early-stage pipeline programs.

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Earnings History

Estimate Beat Miss Match
BIIB REVENUE earnings history estimate and actual scatter chart 9 reported fiscal quarters and 3 future estimate-only quarters. Q1 '24 estimate $2B Q1 '24 actual $2B, miss Q2 '24 estimate $2B Q2 '24 actual $2B, miss Q3 '24 estimate $2B Q3 '24 actual $2B, beat Q2 '25 estimate $2B Q2 '25 actual $3B, beat Q3 '25 estimate $2B Q3 '25 actual $2B, beat Q4 '25 estimate $2B Q4 '25 actual $2B, beat Q1 '26 estimate $2B Q1 '26 actual $2B, beat Q2 '26 estimate $2B Q2 '26 actual $3B, beat Q3 '26 estimate $3B Q4 '26 estimate $3B Q1 '27 estimate $3B
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Analyst Consensus ?

ConsensusBuy49 ratings
Bullish3163.3%
Neutral1734.7%
Bearish12.0%

Analyst 52W Price Targets

$227.53Current
$157Low
$250.52Average
$415High

Latest persisted target per named analyst; persisted current price from FN2's market snapshot as of Sep 23, 2026. Not an FN2 forecast.

Firm-level rating actions

FMP grade actions identify the grading firm, not a named analyst.

FirmRatingPrior ratingActionDate
HSBC Reduce ReduceMaintainSep 10, 2026
Piper Sandler Overweight OverweightMaintainSep 3, 2026
RBC Capital Outperform OutperformMaintainAug 25, 2026
Wolfe Research Outperform Peer PerformUpgradeAug 13, 2026
Mizuho Outperform OutperformMaintainAug 4, 2026
Show 44 more rating actions

Named analyst price targets

Upside is calculated against the persisted current price $227.53. FMP does not supply a rating on these named-analyst rows.

FirmAnalyst52W targetPrice when postedUpsideDate
Stifel NicolausPaul Matteis$242$214.77 +6.4%Sep 10, 2026
HSBCAnalyst unavailable$175$210.73 -23.1%Sep 10, 2026
Piper SandlerAnalyst unavailable$245$222.67 +7.7%Sep 3, 2026
RBC CapitalAnalyst unavailable$260$218.12 +14.3%Aug 25, 2026
Wolfe ResearchAnalyst unavailable$300$208.87 +31.9%Aug 13, 2026
See 136 more

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Company context

Snapshot as of publication

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).…

Historical context

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Sources

  1. Earnings call transcript and parsed analysis · 2026-07-29T16:07:47.985132+00:00
  2. FN2 earnings calendar · 2026-09-03T01:23:14.877038+00:00
  3. Polygon adjusted daily market bars · 2026-09-23T21:00:52.517685+00:00
  4. Financial Modeling Prep analyst price-target consensus and quote snapshot · 2026-09-23T21:00:52.514982+00:00

Methodology

Reported and consensus figures come from FN2's earnings event records. Market reaction and volume are calculated from daily adjusted bars around the event; abnormal move subtracts the SPY move over the same window.

Analyst target low, average, and high values are derived at request time from each named analyst's latest persisted FMP target. The current-price marker comes from FN2's persisted market snapshot. They are sell-side estimates, not an FN2 valuation or recommendation.

Transcript intelligence is a structured synthesis of the current and prior earnings-call analyses. Missing values stay missing and are never estimated.

By FN2 Research · Updated · As of 2026-09-23. For educational purposes only; not investment advice.