Biogen Inc. · BIIB · FY2023 Q4 · Calendar Q1 2024

Biogen pivots growth toward new launches as MS revenue declines

Biogen’s near-term growth case depends on whether LEQEMBI and other recent launches can offset ongoing MS and contract-manufacturing declines. The supplied analysis supports progress in launches and cost reduction, but access constraints, competition and pipeline risk remain material tests.

Reported Before market openNASDAQHealthcare $34.50B market cap
100quality score

Earnings scorecard

Reported versus consensus
Reported EPS $2.95 Consensus $3.16
EPS surprise -6.6% Reported versus consensus
Reported revenue $2.39B Consensus $2.47B
Revenue surprise -3.2% Reported versus consensus

Market reaction

prior-close to event-session close
Stock move -7.4% Event window
SPY move -1.4% Same window
Abnormal move -6.0% Stock minus SPY
Volume 3.6× Versus trailing sessions
Subsequent drift -0.0% Up to 20 sessions
BIIBSPY benchmark

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What changed

The emphasis shifted further toward four recent launches and cost efficiency as offsets to a low-single-digit revenue decline. The supplied analysis also highlighted January LEQEMBI enrollment growth, broader international rollout plans and multiple 2024 pipeline readouts.

Guidance delta

Guidance was maintained. Management’s 2024 outlook called for non-GAAP EPS of $15-$16, or about 5% year-over-year growth at the midpoint, despite a low-single-digit revenue decline.

Key takeaways

  • Management said growth is increasingly anchored by LEQEMBI, SKYCLARYS, ZURZUVAE and QALSODY.
  • LEQEMBI enrollment grew in January, while Biogen focused on broader access and international rollout.
  • Cost savings and new-product revenue are intended to offset pressure from the MS franchise and contract manufacturing.

Management priorities

  • Expand LEQEMBI access in the United States, Japan, China and Europe.
  • Advance Alzheimer’s, Angelman syndrome and lupus pipeline programs toward planned readouts and filings.
  • Continue Fit for Growth savings, evaluate strategic alternatives for biosimilars and assess further M&A.

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Earnings History

Estimate Beat Miss Match
BIIB EPS earnings history estimate and actual scatter chart 9 reported fiscal quarters and 3 future estimate-only quarters. Q4 '23 estimate $3.16 Q4 '23 actual $2.95, miss Q1 '24 estimate $3.47 Q1 '24 actual $3.67, beat Q2 '24 estimate $4.07 Q2 '24 actual $5.28, beat Q3 '24 estimate $3.77 Q3 '24 actual $4.08, beat Q2 '25 estimate $3.90 Q2 '25 actual $5.47, beat Q3 '25 estimate $3.88 Q3 '25 actual $4.81, beat Q4 '25 estimate $1.63 Q4 '25 actual $1.99, beat Q1 '26 estimate $3.05 Q1 '26 actual $3.57, beat Q2 '26 estimate $2.94 Q2 '26 actual $3.60, beat Q3 '26 estimate $1.98 Q4 '26 estimate $3.54 Q1 '27 estimate $3.69
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Analyst Consensus ?

ConsensusBuy49 ratings
Bullish3265.3%
Neutral1632.7%
Bearish12.0%

Analyst 52W Price Targets

$233.48Current
$157Low
$246.98Average
$405High

Latest persisted target per named analyst; persisted current price from FN2's market snapshot as of Oct 20, 2026. Not an FN2 forecast.

Firm-level rating actions

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

FirmRatingPrior ratingActionDate
JP Morgan Overweight NeutralUpgradeOct 12, 2026
UBS Buy BuyMaintainOct 9, 2026
RBC Capital Outperform OutperformMaintainOct 8, 2026
HSBC Reduce ReduceMaintainSep 10, 2026
Piper Sandler Overweight OverweightMaintainSep 3, 2026
Show 44 more rating actions

Named analyst price targets

Upside is calculated against the persisted current price $233.48. FMP does not supply a rating on these named-analyst rows.

FirmAnalyst52W targetPrice when postedUpsideDate
BMO CapitalAnalyst unavailable$220$232.95 -5.8%Oct 12, 2026
UBSAnalyst unavailable$270$223.25 +15.6%Oct 9, 2026
RBC CapitalAnalyst unavailable$256$219.91 +9.6%Oct 8, 2026
Stifel NicolausPaul Matteis$242$214.77 +3.6%Sep 10, 2026
HSBCAnalyst unavailable$175$210.73 -25.0%Sep 10, 2026
See 139 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 · 2026-05-11T10:29:34.698584+00:00
  2. FN2 earnings calendar · 2024-11-11T06:39:45.180704+00:00
  3. Polygon adjusted daily market bars · 2026-10-20T05:00:45.126701+00:00
  4. Financial Modeling Prep analyst price-target consensus and quote snapshot · 2026-10-20T05:00:45.124936+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 2026-10-20. For educational purposes only; not investment advice.