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Equity · Healthcare

BIIB

NASDAQ

Biogen (BIIB)

248.51 USD +1.77% vs prior close Nov 6, 2026
Biogen Inc. price graph
64 sessions
260 200 10 Aug 6 Nov

The line runs 207.23 USD on 10 August through 248.51 USD on 6 November, on a scale from 200 to 260. Days the market did not trade hold the previous close, flat.

Track this symbol on TradingView
Market cap
36.7B USD
P/E (TTM)
107.1
Revenue, year to Dec 2025
9.9B USD
EPS, diluted, year to Dec 2025
8.79 USD
52-week range
149 USD – 254.57 USD
Avg volume
84.3K
Mentions, 30 days
1

as of Nov 6, 2026

Have Biogen (BIIB) insiders bought or sold shares recently?

In the 90 days to 9 Nov 2026, no Biogen insider bought or sold shares on the open market; all 4 Form 4 filings in that window were grants, exercises, tax withholding or transfers (SEC Form 4).

Form 4, 90 days to 9 Nov 2026, newest Form 4 filing 30 Oct 2026

Buys 0Sells 0Other filings 4

Have Biogen (BIIB) insiders bought or sold shares recently?
ReportedInsiderTypeSharesValue
30 Oct 2026Grogan JaneHead of ResearchOption exercise695
30 Oct 2026Grogan JaneHead of ResearchTax withheld34587K USD
02 Oct 2026Godbout SeanChief Accounting OfficerOption exercise27
02 Oct 2026Godbout SeanChief Accounting OfficerTax withheld82K USD

Which funds hold Biogen (BIIB)?

1 of the 45 institutional funds we track reported a Biogen position for the quarter ended 30 Sep 2026 — a combined 81.9M USD; the latest of those filings landed 06 Nov 2026.

Form 13F

Which funds hold Biogen (BIIB)?
FundPositionSharesValueShares q/q
Fisher Asset ManagementHeld (±25%)362,77381.9M USD+7.3%

Have members of Congress traded Biogen (BIIB)?

The most recent congressional trade disclosed in Biogen is a sale by Maria Elvira Salazar (house, FL), dated 24 Sep 2026.

STOCK Act disclosures

Have members of Congress traded Biogen (BIIB)?
TradedMemberTypeAmountFiled after
24 Sep 2026Maria Elvira Salazarhouse · Republican–FLSale1K USD–15K USD13 days
18 Aug 2026Kevin Hernhouse · Republican–OKSale1K USD–15K USD14 days
12 May 2026Maria Elvira Salazarhouse · Republican–FLPurchase1K USD–15K USD27 days
30 Jan 2026Gilbert Ray Cisneros, Jr.house · Democrat–CAPurchase1K USD–15K USD14 days
15 May 2025Robert P. Bresnahan, Jr.house · Republican–PAPurchase1K USD–15K USD25 days
08 Apr 2025Robert P. Bresnahan, Jr.house · Republican–PASale1K USD–15K USD30 days
25 Feb 2025Robert P. Bresnahan, Jr.house · Republican–PAPurchase1K USD–15K USD30 days
17 Mar 2022Josh Gottheimerhouse · Democrat–NJSale1K USD–15K USD31 days

What has been filed or recorded for Biogen (BIIB)?

The filings we hold for Biogen, newest first: 6 fails-to-deliver days, 6 quarterly earnings reports, 2 annual reports and 5 reported financial figures, the latest dated 14 Oct 2026. No next earnings date is announced in SEC filings yet.

What has been filed or recorded for Biogen (BIIB)?
And
14 Oct 2026Fails to deliverShares failed to deliver2,091 shares479K USD notional · 0.001% of shares out
09 Oct 2026Fails to deliverShares failed to deliver318 shares69K USD notional · <0.001% of shares out
06 Oct 2026Fails to deliverShares failed to deliver3,117 shares697K USD notional · 0.002% of shares out
05 Oct 2026Fails to deliverShares failed to deliver1,440 shares317K USD notional · 0.001% of shares out
30 Sep 2026Quarterly earningsQ3 2026 reportedEPS −0.14 USDRevenue $2.80B
30 Sep 2026FinancialsTotal assets32.1B USDat period end
30 Sep 2026FinancialsTotal equity incl. minority interest18.9B USDat period end
28 Sep 2026Fails to deliverShares failed to deliver49,163 shares11.2M USD notional · 0.033% of shares out
24 Sep 2026Fails to deliverShares failed to deliver58 shares13K USD notional · <0.001% of shares out
30 Jun 2026Quarterly earningsQ2 2026 reportedEPS 0.66 USDRevenue $2.74B
31 Mar 2026Quarterly earningsQ1 2026 reportedEPS 2.15 USDRevenue $2.48B
31 Dec 2025Annual reportFY 2025 reportedEPS 8.79 USDRevenue $9.89B
31 Dec 2025FinancialsRevenue9.9B USDfiscal year
31 Dec 2025FinancialsNet income1.3B USDfiscal year
31 Dec 2025FinancialsDiluted EPS8.79 USDfiscal year
30 Sep 2025Quarterly earningsQ3 2025 reportedEPS 3.17 USDRevenue $2.53B
30 Jun 2025Quarterly earningsQ2 2025 reportedEPS 4.33 USDRevenue $2.65B
31 Mar 2025Quarterly earningsQ1 2025 reportedEPS 1.64 USDRevenue $2.43B
31 Dec 2024Annual reportFY 2024 reportedEPS 11.18 USDRevenue $9.68B

What is Reddit saying about Biogen (BIIB)?

Reddit mentioned BIIB 1 times in the 30 days to 8 November 2026, in 1 of the communities we track. All of them were scored for sentiment: 100% read bullish, 0% bearish and 0% neither. Reddit data updated 8 November 2026.

30-day window, Method

Mentions, 30 days 1Communities 1

How do Reddit mentions of Biogen (BIIB) compare with its price?

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Post on X Share on Reddit Share on LinkedIn
1 mentions

Where Biogen (BIIB) is discussed

30 days

Where Biogen (BIIB) is discussed
CommunityShareMentionsNet sentiment
r/wallstreetbets100%1+0.12

Biogen (BIIB): frequently asked questions

From live data
248.51

What did Biogen shares close at?

Biogen closed at 248.51 USD on 6 Nov 2026, up 1.77% on the close before. That is the end-of-day price from Finazon, not a live quote.

36.7B

What is Biogen’s market cap?

Biogen is worth 36.7B USD by market value as of 6 Nov 2026, which is the share price times the shares on issue from its SEC filings.

107.1

What is Biogen’s P/E ratio?

Biogen has a price-to-earnings ratio of 107.1, as of 6 Nov 2026: the share price divided by what the company earned per share over the last four reported quarters. A higher number means the market pays more for each dollar of earnings.

9.9B

What is Biogen’s revenue?

Biogen reported revenue of 9.9B USD for the year ended 31 Dec 2025, as filed with the SEC. See Filings

4 filings

Have Biogen insiders bought or sold shares recently?

In the 90 days to 9 Nov 2026, no Biogen insider bought or sold shares on the open market; all 4 Form 4 filings in that window were grants, exercises, tax withholding or transfers (SEC Form 4). See Insiders

1 of 45

Which funds own Biogen?

1 of the 45 funds we track reported a Biogen position for the quarter ended 30 Sep 2026, per their SEC Form 13F filings. The largest reported position was Fisher Asset Management. See Funds

11 trades

Have members of Congress traded Biogen?

Yes. 11 trades in Biogen appear in the congressional disclosures we hold; the latest is a sale by Maria Elvira Salazar (House, FL) dated 24 Sep 2026, filed 7 Oct 2026. Amounts are disclosed as ranges, and a filing can follow the trade by up to 45 days. See Congress

−0.14

When did Biogen last report earnings?

Biogen last reported earnings on 30 Sep 2026 for Q3 2026, with EPS of −0.14 USD; no next date is announced in SEC filings yet. See Filings

0 mentions

What is Reddit saying about Biogen?

Biogen was mentioned 0 times in the last 7 days across the finance subreddits we track, and 1 times over the trailing 30 days. Of the 1 mentions scored for sentiment, 100% read bullish and 0% bearish. That is a social signal, not investment advice. See Reddit

Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.

References
  1. Finazonprior-day close, indicative (IEX-derived, not the official close), some closes dollar-rounded at the source
  2. TradingViewthe price chart widget, drawn by TradingView from their own data
  3. RedditReddit ingest across the tracked finance subreddits
  4. SEC EDGARForm 4 filings (insider transactions)
  5. SEC EDGAR13F filings
  6. House disclosuresU.S. House of Representatives financial disclosures
  7. SECSEC fails-to-deliver (CNS) data
  8. SEC EDGARXBRL company facts, latest period ended 30 Sep 2026
  9. SEC EDGARreported earnings figures and scheduled report dates
  10. SEC EDGARValuation computed from SEC EDGAR filings