Stock detail

Biogen (BIIB) stock price, chart, and key data

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BIIB

Stock detail

Biogen

BIIB · XNAS

$218.29

+1.33%

+$2.86

XNASMarket openLast updated: Sep 12, 01:31 AM

Key metrics

52-week range

$8.75 - $6.00

Close price

$215.43

Market cap

$31.8B

P/E ratio

326.41

Beta

0.8

About the company

Biogen Inc.

Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, United States specializing in the treatment of neurological diseases. The company's primary products are dimethyl fumarate, diroximel fumarate, interferon beta-1a, peginterferon beta-1a, and natalizumab, all for the treatment of multiple sclerosis; nusinersen for the treatment of spinal muscular atrophy; omaveloxolone for the treatment of Friedreich's ataxia; tofersen for the treatment of ALS; and dimethyl fumarate for the treatment of severe plaque psoriasis. The company also produces 5 biosimilars and has collaborations with Genentech for several drugs. The company is ranked 424th on the Fortune 500 and 845th on the Forbes Global 2000.

Analyst rating summary

A current read on analyst sentiment from the insight feed.

Mean target

$237

Low$175High$300

17

Buy

/ 27

Recent calls

09/10/2026

HSBC

Morten Herholdt

Sell · Price target $175

09/09/2026

BMO Capital

Evan Seigerman

Hold

09/03/2026

Piper Sandler

David Amsellem

Buy · Price target $245

Ticker holders

Review politician disclosures and insider transactions in tabs.

Holder directory

Select a heading to reorder by name, activity date, buy/sell, or displayed value.

11/11

#1Ro Khanna

democrat · House · CA-17

child
  • Sell$1,001 / $8,001 / $15,000
  • Sell$1,000 / $8,000 / $15,000
  • Buy$1,001 / $8,001 / $15,000
  • Buy$1,000 / $8,000 / $15,000
$4,002/$32,001/$60,000

#2Alan Armstrong

self
  • Buy$1,001 / $8,001 / $15,000
$1,001/$8,001/$15,000

#3Donald J Trump

republican · Executive

self
  • 327 / 661 / 996
327/661/996

#4James French Hill

republican · House · AR-2

self
  • 284 / 426 / 568
284/426/568

#5Maria Elvira

republican · House

self
  • 183 / 287 / 391
183/287/391

#6Gilbert Cisneros

democrat · House · CA-31

self
  • Buy$1,001 / $8,001 / $15,000
  • 10 / 85 / 160
10/85/160

#7Ro Khanna

democrat · House · CA-17

spouse
  • Sell$1,001 / $8,001 / $15,000
  • 7 / 56 / 106
7/56/106

#8Rob Bresnahan

republican · House · PA-8

self
  • Buy$1,001 / $8,001 / $15,000
  • Sell$1,001 / $8,001 / $15,000
  • Buy$1,000 / $8,000 / $15,000
  • 5 / 45 / 85
5/45/85

#9Kevin Hern

republican · House · OK-1

self
  • 0 / 7 / 14
0/7/14

#10Shaun Finnie

self
  • 1 / 2 / 5
1/2/5

#11Shaun Finnie

spouse
  • 1 / 2 / 5
1/2/5

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