Biogen Inc. Stock Performance

Open $220.70	Prev. Close $218.32	Circuit Range N/A
Day Range $219.27 - $226.88	Year Range $138.13 - $230.47	Volume 53,667
Average Traded $223.30

Biogen Inc. Share Price Today

As of 10 October 2026, Biogen Inc.'s share price is $225.73. The stock opened at $220.70, compared to its previous close of $218.32. During today's trading session, Biogen Inc.'s share price traded between $219.27 and $226.88, with an average price of $223.07. Over the past 52 weeks, the stock has recorded a high of $230.47 and a low of $138.13. In terms of performance, Biogen Inc.'s share price has risen by 19.18% over the last six months and is up 46.16% on a year-on-year basis.

Biogen Inc. Share Price Chart

$219.27$226.88

Biogen Inc. Stock Fundamentals & Key Indicators

Market Cap $33.07B	PE Ratio (TTM) 38.67	Dividend Yield 0.00%
EPS (TTM) $5.65	Revenue (TTM) $9.89B	Return On Equity (TTM) 4.43%
Profit Margin 13.04%	Debt to Equity 0.43	Quarterly Earnings Growth YoY -79.10%

Biogen Inc. Quarterly Profit & Loss

All figures in USD

Particulars	Sep 2025	Dec 2025	Mar 2026	Jun 2026
Revenue	$2534.70	$2279.40	$2477.80	$2736.00
Net Profit	$466.50	-$48.90	$319.50	$97.50
Net Profit Margin	18.40%	-2.15%	12.89%	3.56%
Income Change	N/A	-110.48%	753.37%	-69.48%

Biogen Inc. Annual Profit & Loss

All figures in USD

Particulars	2022	2023	2024	2025
Revenue	$10.17	$9.84	$9.68	$9.89
Net Profit	$3.05	$1.16	$1.63	$1.29
Net Profit Margin	29.99%	11.79%	16.84%	13.04%
Income Change	N/A	-61.97%	40.52%	-20.86%

About Biogen Inc.

Biogen is an established biopharmaceutical company focused on treatments for neurodegenerative and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 40% of total revenue in 2025. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (19% of total in 2025), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).

Biogen Inc. Historical Returns

Month	Open	Close	Change %
Oct 2026	$224.96	$225.74	-0.18%
Sep 2026	$218.11	$226.14	+2.10%
Aug 2026	$202.63	$221.49	+9.17%
Jul 2026	$215.13	$202.89	-6.07%
Jun 2026	$192.64	$216.00	+10.13%
May 2026	$187.60	$196.13	+3.55%
Apr 2026	$183.49	$189.40	+3.29%
Mar 2026	$190.23	$183.37	-4.34%
Feb 2026	$179.69	$191.69	+6.54%
Jan 2026	$174.93	$179.91	+2.28%
Dec 2025	$181.06	$175.90	-3.38%
Nov 2025	$153.99	$182.06	+17.88%

BIIB Share Price FAQs

What is Biogen Inc. share price today?

Biogen Inc. share price today is $225.73 as on October 10, 2026 at 1:29 am IST.

What is the 52 week high and 52 week low of Biogen Inc. stock?

The 52 week high of Biogen Inc. stock is $230.47, while the 52 week low is $138.13 as of 10 Oct '26.

What is BIIB's market capitalisation today?

BIIB market capitalisation is $33.07B as of October 10, 2026, at 4:42 am IST.

What is BIIB's net income for the last quarter?

BIIB's net income for the last quarter is 97.50B USD.

What is the 5 year returns of BIIB?

The 5 year returns of BIIB is -15.38% as on 10 Oct '26.

What is the high & low stock price of BIIB today?

BIIB stock price hit a high of $226.88 and low of $219.27 as of 10 Oct '26.

Can I buy BIIB shares in India?

Yes. You can buy BIIB in India by opening an international trading account.