$BIIB

Market closed

Biogen Inc. · NasdaqGS

$244.05

▼ $8.68 (3.43%)

52wk low $138.0052wk high $258.78

Open

$244.93

Prev close

$252.73

Day range

$243.03 – $258.63

Volume

2.32M

Avg volume

1.06M

Market cap

$36.06B

P/E (TTM)

44.86

Forward P/E

14.91

EPS (TTM)

5.44

52wk change

+65.05%

🐂 50% bullish0 community calls50% bearish 🐻

1M performance

+6.72%$228.69 → $244.05

$253.84$218.43

Sep 28Oct 28

Latest news

Biogen Inc (BIIB) (Q3 2026) Earnings Call Highlights: Revenue Climbs 11% as Growth Portfolio ...
GuruFocus.com · 3h ago
Biogen Q3 Earnings Call Highlights
MarketBeat · 6h ago
Biogen Has 'Returned To Growth,' Says CEO — What To Know About Its Report
Investor's Business Daily · 8h ago
Biogen Inc. Q3 2026 Earnings Call Summary
Moby · 11h ago
Biogen (BIIB) Q3 2026 Earnings Call Transcript
Motley Fool · 11h ago
BIIB's Q3 Earnings Beat, New Drugs Aid Sales, '26 EPS View Tightened
Zacks · 12h ago

What moved $BIIB before

Logged catalysts for this stock, with the price reaction measured from real closes.

Browse all factors →

Date	Factor	What happened	Next day	1 week	1 month	vs S&P
Jun 7, 2021	💊 FDA approval or rejection	FDA approves Aduhelm for Alzheimer's disease Surprise approval after an adverse advisory committee vote.	+38.34%	+38.62%	+20.53%	+38.44%

Date

Factor

What happened

Next day

1 week

1 month

vs S&P

Jun 7, 2021

💊 FDA approval or rejection

FDA approves Aduhelm for Alzheimer's disease

Surprise approval after an adverse advisory committee vote.

+38.34%

+38.62%

+20.53%

+38.44%

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Market data from Yahoo Finance. Prices may be delayed. Not financial advice.