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BIIB · Biogen

USDPartial · stale

Sources: StockAnalysis

Saved price$250.48
Analyst 12M target
$267.40
Difference from current price
+6.8%
12M target range
$175.00 – $350.00
Estimate agreement
39%

Price history & SEC filings

Up day Down day SEC filing
2026-09-16
Open
$216.41
High
$218.29
Low
$214.81
Close
$216.01
Change
-0.2%
Volume
606.5K

Price and SEC filing data

  • 2026-03-17: Open $184.73, High $186.52, Low $183.20, Close $185.29, Volume 810.2K.
  • 2026-03-18: Open $184.13, High $184.32, Low $180.48, Close $182.31, Volume 846.2K.
  • 2026-03-19: Open $182.18, High $185.45, Low $181.68, Close $183.41, Volume 768.6K.
  • 2026-03-20: Open $183.13, High $183.69, Low $180.47, Close $181.46, Volume 2.2M.
  • 2026-03-23: Open $183.48, High $185.00, Low $183.00, Close $183.64, Volume 1M.
  • 2026-03-24: Open $182.63, High $184.84, Low $180.33, Close $183.94, Volume 644.1K.
  • 2026-03-25: Open $184.91, High $189.38, Low $184.91, Close $189.18, Volume 775.2K.
  • 2026-03-26: Open $189.00, High $192.28, Low $188.36, Close $191.06, Volume 879.1K.
  • 2026-03-27: Open $191.06, High $191.06, Low $183.01, Close $183.84, Volume 935.1K.
  • 2026-03-30: Open $186.16, High $190.09, Low $185.51, Close $187.57, Volume 799.9K.
  • 2026-03-31: Open $179.46, High $184.68, Low $171.37, Close $183.33, Volume 2.7M.
  • 2026-04-01: Open $183.16, High $186.31, Low $181.71, Close $183.78, Volume 1.4M.
  • 2026-04-02: Open $181.46, High $182.23, Low $176.39, Close $177.34, Volume 1.3M.
  • 2026-04-06: Open $177.00, High $177.39, Low $168.64, Close $172.34, Volume 2.1M.
  • 2026-04-07: Open $172.20, High $175.64, Low $170.43, Close $175.61, Volume 1.5M.
  • 2026-04-08: Open $178.24, High $180.24, Low $176.35, Close $179.90, Volume 1.3M.
  • 2026-04-09: Open $177.81, High $180.06, Low $174.97, Close $177.11, Volume 1.3M.
  • 2026-04-10: Open $177.97, High $177.97, Low $172.32, Close $172.97, Volume 1.5M.
  • 2026-04-13: Open $172.62, High $176.79, Low $171.22, Close $176.37, Volume 1.4M.
  • 2026-04-14: Open $177.71, High $181.77, Low $177.45, Close $178.96, Volume 1.6M.
  • 2026-04-15: Open $179.36, High $180.87, Low $177.70, Close $180.54, Volume 1.2M.
  • 2026-04-16: Open $178.82, High $179.99, Low $174.85, Close $176.02, Volume 953.5K.
  • 2026-04-17: Open $176.29, High $178.41, Low $175.69, Close $177.35, Volume 1.2M.
  • 2026-04-20: Open $179.54, High $184.26, Low $178.72, Close $183.34, Volume 1.5M.
  • 2026-04-21: Open $184.52, High $187.74, Low $181.75, Close $185.95, Volume 1.1M.
  • 2026-04-22: Open $189.31, High $192.75, Low $188.67, Close $190.07, Volume 1.3M.
  • 2026-04-23: Open $189.46, High $190.32, Low $187.01, Close $187.88, Volume 816.3K.
  • 2026-04-24: Open $186.65, High $186.65, Low $183.17, Close $184.38, Volume 723.3K.
  • 2026-04-27: Open $183.16, High $186.15, Low $179.15, Close $180.67, Volume 1.1M.
  • 2026-04-28: Open $182.45, High $184.41, Low $181.89, Close $183.38, Volume 1.2M.
  • 2026-04-29: Open $183.12, High $195.89, Low $180.18, Close $194.38, Volume 2.5M.
  • 2026-04-30: Open $194.02, High $195.98, Low $187.16, Close $189.28, Volume 1.6M.
  • 2026-05-01: Open $189.28, High $190.57, Low $186.14, Close $187.06, Volume 696.8K.
  • 2026-05-04: Open $186.28, High $187.51, Low $185.44, Close $187.21, Volume 626.6K.
  • 2026-05-05: Open $187.38, High $189.69, Low $186.00, Close $189.13, Volume 586.1K.
  • 2026-05-06: Open $189.13, High $191.17, Low $188.30, Close $190.68, Volume 741.3K.
  • 2026-05-07: Open $190.34, High $192.10, Low $188.86, Close $191.38, Volume 735.6K.
  • 2026-05-08: Open $189.68, High $195.20, Low $189.50, Close $193.45, Volume 931.5K.
  • 2026-05-11: Open $194.76, High $200.31, Low $194.75, Close $197.95, Volume 1.8M.
  • 2026-05-12: Open $198.47, High $202.40, Low $196.47, Close $199.36, Volume 1.1M.
  • 2026-05-13: Open $199.33, High $205.97, Low $198.86, Close $204.53, Volume 1.3M.
  • 2026-05-14: Open $200.25, High $205.00, Low $189.49, Close $191.37, Volume 2.8M.
  • 2026-05-15: Open $191.83, High $194.91, Low $190.66, Close $192.95, Volume 1.3M.
  • 2026-05-18: Open $191.25, High $193.37, Low $189.19, Close $191.91, Volume 1.1M.
  • 2026-05-19: Open $191.72, High $193.03, Low $188.64, Close $190.56, Volume 1.1M.
  • 2026-05-20: Open $191.41, High $193.38, Low $186.37, Close $187.80, Volume 919.7K.
  • 2026-05-21: Open $187.40, High $190.27, Low $185.85, Close $189.47, Volume 1.5M.
  • 2026-05-22: Open $190.53, High $194.75, Low $190.01, Close $193.76, Volume 892.9K.
  • 2026-05-26: Open $194.30, High $195.50, Low $192.27, Close $193.08, Volume 930.1K.
  • 2026-05-27: Open $194.11, High $199.80, Low $194.11, Close $196.97, Volume 893K.
  • 2026-05-28: Open $196.97, High $198.00, Low $194.50, Close $196.39, Volume 556.2K.
  • 2026-05-29: Open $195.55, High $198.46, Low $195.11, Close $196.00, Volume 1.9M.
  • 2026-06-01: Open $194.50, High $195.28, Low $191.67, Close $192.23, Volume 841.5K.
  • 2026-06-02: Open $190.09, High $190.58, Low $184.90, Close $188.83, Volume 1.1M.
  • 2026-06-03: Open $187.69, High $196.51, Low $187.48, Close $195.96, Volume 891.5K.
  • 2026-06-04: Open $198.00, High $199.90, Low $196.35, Close $196.45, Volume 719.1K.
  • 2026-06-05: Open $196.45, High $200.66, Low $195.14, Close $195.34, Volume 880.4K.
  • 2026-06-08: Open $197.25, High $198.70, Low $192.18, Close $192.62, Volume 1.2M.
  • 2026-06-09: Open $195.51, High $199.63, Low $193.45, Close $199.10, Volume 934.2K.
  • 2026-06-10: Open $200.21, High $201.94, Low $194.10, Close $194.24, Volume 1.1M.
  • 2026-06-11: Open $195.49, High $201.18, Low $194.24, Close $199.96, Volume 914.7K.
  • 2026-06-12: Open $200.57, High $203.45, Low $199.06, Close $200.05, Volume 837.3K.
  • 2026-06-15: Open $198.37, High $199.37, Low $195.89, Close $198.64, Volume 883.9K.
  • 2026-06-16: Open $199.69, High $200.26, Low $194.04, Close $195.61, Volume 1.1M.
  • 2026-06-17: Open $195.14, High $201.75, Low $194.04, Close $198.67, Volume 1M.
  • 2026-06-18: Open $200.22, High $200.99, Low $193.20, Close $196.58, Volume 1.7M.
  • 2026-06-22: Open $199.48, High $200.98, Low $194.74, Close $199.71, Volume 1.7M.
  • 2026-06-23: Open $198.88, High $201.22, Low $197.01, Close $197.19, Volume 1.1M.
  • 2026-06-24: Open $199.34, High $202.06, Low $198.66, Close $199.59, Volume 1.3M.
  • 2026-06-25: Open $201.63, High $206.67, Low $200.20, Close $201.96, Volume 1.3M.
  • 2026-06-26: Open $202.53, High $218.06, Low $202.29, Close $216.03, Volume 2.4M.
  • 2026-06-29: Open $215.74, High $219.72, Low $214.08, Close $216.63, Volume 1.3M.
  • 2026-06-30: Open $218.00, High $218.00, Low $212.58, Close $216.06, Volume 1.1M.
  • 2026-07-01: Open $215.25, High $215.81, Low $209.67, Close $209.74, Volume 1.1M.
  • 2026-07-02: Open $212.74, High $219.02, Low $210.75, Close $216.12, Volume 1.2M.
  • 2026-07-06: Open $215.95, High $215.95, Low $208.27, Close $208.46, Volume 1.2M.
  • 2026-07-07: Open $211.86, High $212.00, Low $205.65, Close $205.70, Volume 1.2M.
  • 2026-07-08: Open $204.86, High $206.75, Low $198.93, Close $200.36, Volume 1.9M.
  • 2026-07-09: Open $198.92, High $201.01, Low $196.00, Close $198.91, Volume 1.7M.
  • 2026-07-10: Open $197.63, High $199.98, Low $194.37, Close $199.15, Volume 1.1M.
  • 2026-07-13: Open $199.33, High $210.87, Low $197.74, Close $209.03, Volume 2.3M.
  • 2026-07-14: Open $200.34, High $202.00, Low $189.40, Close $191.95, Volume 3.9M.
  • 2026-07-15: Open $191.21, High $198.58, Low $186.03, Close $197.24, Volume 2.1M.
  • 2026-07-16: Open $198.26, High $209.64, Low $194.67, Close $208.92, Volume 1.9M.
  • 2026-07-17: Open $208.60, High $215.79, Low $203.40, Close $205.99, Volume 1.2M.
  • 2026-07-20: Open $204.08, High $205.65, Low $199.62, Close $199.95, Volume 962.7K.
  • 2026-07-21: Open $199.47, High $203.70, Low $198.59, Close $203.16, Volume 652.8K.
  • 2026-07-22: Open $203.70, High $204.31, Low $197.40, Close $197.74, Volume 841.3K.
  • 2026-07-23: Open $197.04, High $203.60, Low $196.92, Close $200.62, Volume 1M.
  • 2026-07-24: Open $202.24, High $203.30, Low $200.04, Close $202.19, Volume 596.3K.
  • 2026-07-27: Open $202.75, High $204.47, Low $199.83, Close $200.14, Volume 762.6K.
  • 2026-07-28: Open $201.01, High $207.72, Low $199.40, Close $205.61, Volume 1.8M.
  • 2026-07-29: Open $210.50, High $218.59, Low $206.27, Close $209.23, Volume 2.4M.
  • 2026-07-30: Open $204.38, High $210.19, Low $203.09, Close $207.93, Volume 892.9K.
  • 2026-07-31: Open $207.51, High $208.05, Low $202.57, Close $202.95, Volume 1.1M.
  • 2026-08-03: Open $203.34, High $203.85, Low $199.58, Close $201.82, Volume 940.9K.
  • 2026-08-04: Open $200.96, High $209.74, Low $199.93, Close $208.45, Volume 1.2M.
  • 2026-08-05: Open $210.60, High $212.18, Low $205.80, Close $206.63, Volume 873.7K.
  • 2026-08-06: Open $208.75, High $209.03, Low $202.03, Close $206.28, Volume 892.6K.
  • 2026-08-07: Open $207.38, High $208.31, Low $204.16, Close $207.94, Volume 840.5K.
  • 2026-08-10: Open $206.70, High $210.02, Low $206.29, Close $207.13, Volume 706.4K.
  • 2026-08-11: Open $206.63, High $207.57, Low $203.53, Close $203.89, Volume 936.8K.
  • 2026-08-12: Open $203.52, High $209.22, Low $201.00, Close $208.87, Volume 789K.
  • 2026-08-13: Open $212.98, High $215.61, Low $208.79, Close $210.65, Volume 860.1K.
  • 2026-08-14: Open $210.01, High $210.79, Low $208.22, Close $209.83, Volume 554.4K.
  • 2026-08-17: Open $208.36, High $210.49, Low $207.62, Close $209.15, Volume 617.1K.
  • 2026-08-18: Open $211.00, High $214.07, Low $210.01, Close $212.55, Volume 694K.
  • 2026-08-19: Open $215.33, High $222.15, Low $215.08, Close $221.56, Volume 886.8K.
  • 2026-08-20: Open $217.98, High $221.29, Low $214.16, Close $214.35, Volume 808.6K.
  • 2026-08-21: Open $217.76, High $219.12, Low $215.00, Close $216.78, Volume 722.3K.
  • 2026-08-24: Open $216.40, High $218.50, Low $213.96, Close $218.12, Volume 649.8K.
  • 2026-08-25: Open $218.93, High $222.85, Low $218.00, Close $220.77, Volume 495.4K.
  • 2026-08-26: Open $219.34, High $222.00, Low $218.69, Close $221.07, Volume 647.2K.
  • 2026-08-27: Open $219.39, High $222.11, Low $217.53, Close $221.50, Volume 497.3K.
  • 2026-08-28: Open $221.17, High $222.00, Low $216.78, Close $218.50, Volume 517.4K.
  • 2026-08-31: Open $216.47, High $218.89, Low $213.58, Close $216.65, Volume 831K.
  • 2026-09-01: Open $218.11, High $219.30, Low $213.60, Close $216.04, Volume 785.5K.
  • 2026-09-02: Open $218.20, High $225.59, Low $216.97, Close $222.67, Volume 1.3M.
  • 2026-09-03: Open $225.44, High $225.80, Low $221.23, Close $224.51, Volume 550.7K.
  • 2026-09-04: Open $221.15, High $223.82, Low $219.82, Close $220.83, Volume 465.1K.
  • 2026-09-08: Open $215.45, High $217.28, Low $210.54, Close $212.50, Volume 617.6K.
  • 2026-09-09: Open $210.50, High $213.48, Low $209.00, Close $210.73, Volume 694.6K.
  • 2026-09-10: Open $209.92, High $216.70, Low $208.93, Close $215.43, Volume 936.6K.
  • 2026-09-11: Open $216.75, High $219.76, Low $214.71, Close $217.15, Volume 1.1M.
  • 2026-09-14: Open $221.00, High $222.25, Low $215.56, Close $217.36, Volume 629.9K.
  • 2026-09-15: Open $216.71, High $216.71, Low $213.54, Close $216.17, Volume 756K.
  • 2026-09-16: Open $216.41, High $218.29, Low $214.81, Close $216.01, Volume 606.5K.
  • 4 · Other transactions. Filed 2026-11-02. Accession 0000875045-26-000098.View filing
  • 4 · Other transactions. Filed 2026-10-05. Accession 0000875045-26-000084.View filing
  • 4 · Transaction details unavailable. Filed 2026-09-03. Accession 0000875045-26-000082.View filing

Analyst estimates

Source12M Target12M RangeAnalystsUpdated
StockAnalysis$268.26USD$175.00 – $350.00USD32—

MarketBeat data unavailable

Signal track record

First tracked2026-11-04 (8d ago)
Entry price$254.46
Initial 12M target$255.23
Initial 12M expected gap
+0.3%
Initial confidence
47%
Realized return
-1.6%-513.6% of target

Available. Fiscal quarters are based on SEC filings. Year-over-year change uses the corresponding quarter one year earlier.

Last checked

Revenue

Revenue by fiscal quarter, with SEC filing evidence
Fiscal quarterPeriodValueChange YoYSEC filing
FY2026 Q3 – 2,804,100,000 USD+10.6%
10-Q · Oct 28, 2026, accession 0000875045-26-000096 (opens in a new tab)
FY2026 Q2 – 2,736,000,000 USD+3.4%
10-Q · Jul 29, 2026, accession 0000875045-26-000075 (opens in a new tab)
FY2026 Q1 – 2,477,800,000 USD+1.9%
10-Q · Apr 29, 2026, accession 0000875045-26-000045 (opens in a new tab)
FY2025 Q4 – 2,279,400,000 USD-7.1%
10-K · Feb 6, 2026, accession 0000875045-26-000013 (opens in a new tab)10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)
FY2025 Q3 – 2,534,700,000 USD+2.8%
10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)
FY2025 Q2 – 2,645,500,000 USD+7.3%
10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)
FY2025 Q1 – 2,431,000,000 USD+6.1%
10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)
FY2024 Q4 – 2,454,700,000 USD+2.9%
10-K · Feb 12, 2025, accession 0000875045-25-000009 (opens in a new tab)10-Q · Apr 24, 2024, accession 0000875045-24-000016 (opens in a new tab)10-Q · Aug 1, 2024, accession 0000875045-24-000025 (opens in a new tab)10-Q · Oct 30, 2024, accession 0000875045-24-000032 (opens in a new tab)

Net income or loss

Net income or loss by fiscal quarter, with SEC filing evidence
Fiscal quarterPeriodValueChange YoYSEC filing
FY2026 Q3 – -20,600,000 USD-104.4%
10-Q · Oct 28, 2026, accession 0000875045-26-000096 (opens in a new tab)
FY2026 Q2 – 97,500,000 USD-84.6%
10-Q · Jul 29, 2026, accession 0000875045-26-000075 (opens in a new tab)
FY2026 Q1 – 319,500,000 USD+32.8%
10-Q · Apr 29, 2026, accession 0000875045-26-000045 (opens in a new tab)
FY2025 Q4 – -48,900,000 USD-118.3%
10-K · Feb 6, 2026, accession 0000875045-26-000013 (opens in a new tab)10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)
FY2025 Q3 – 466,500,000 USD+20.1%
10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)
FY2025 Q2 – 634,800,000 USD+8.8%
10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)
FY2025 Q1 – 240,500,000 USD-38.9%
10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)
FY2024 Q4 – 266,700,000 USD+6.8%
10-K · Feb 12, 2025, accession 0000875045-25-000009 (opens in a new tab)10-Q · Apr 24, 2024, accession 0000875045-24-000016 (opens in a new tab)10-Q · Aug 1, 2024, accession 0000875045-24-000025 (opens in a new tab)10-Q · Oct 30, 2024, accession 0000875045-24-000032 (opens in a new tab)

Operating cash flow

Operating cash flow by fiscal quarter, with SEC filing evidence
Fiscal quarterPeriodValueChange YoYSEC filing
FY2026 Q3 – 640,800,000 USD-49.6%
10-Q · Oct 28, 2026, accession 0000875045-26-000096 (opens in a new tab)10-Q · Jul 29, 2026, accession 0000875045-26-000075 (opens in a new tab)
FY2026 Q2 – 448,900,000 USD+179.0%
10-Q · Jul 29, 2026, accession 0000875045-26-000075 (opens in a new tab)10-Q · Apr 29, 2026, accession 0000875045-26-000045 (opens in a new tab)
FY2026 Q1 – 645,500,000 USD+148.9%
10-Q · Apr 29, 2026, accession 0000875045-26-000045 (opens in a new tab)
FY2025 Q4 – 511,900,000 USD-32.7%
10-K · Feb 6, 2026, accession 0000875045-26-000013 (opens in a new tab)10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)
FY2025 Q3 – 1,272,500,000 USD+36.0%
10-Q · Oct 30, 2025, accession 0000875045-25-000049 (opens in a new tab)10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)
FY2025 Q2 – 160,900,000 USD-74.3%
10-Q · Jul 31, 2025, accession 0000875045-25-000033 (opens in a new tab)10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)
FY2025 Q1 – 259,300,000 USD-53.1%
10-Q · May 1, 2025, accession 0000875045-25-000018 (opens in a new tab)
FY2024 Q4 – 760,900,000 USD+5987.2%
10-K · Feb 12, 2025, accession 0000875045-25-000009 (opens in a new tab)10-Q · Apr 24, 2024, accession 0000875045-24-000016 (opens in a new tab)10-Q · Aug 1, 2024, accession 0000875045-24-000025 (opens in a new tab)10-Q · Oct 30, 2024, accession 0000875045-24-000032 (opens in a new tab)

Insider activity

4 other transactions reported.

Checked Nov 13, 2026

View reported transactions (4 rows · 3 filings)

Other transactionsGrogan Jane

View Form 4 filing at SEC

Filing context

Reporting owners and roles: Grogan Jane (officer (Head of Research))

  • Grogan JaneOption exercise or conversion695 shares · Value unavailable
    Transaction details

    officer (Head of Research) · Direct ownership · Common Stock · Code M/A

  • Grogan JaneTax/exercise-price payment345 shares · $87,498.90
    Transaction details

    officer (Head of Research) · Direct ownership · Common Stock · Code F/D

Other transactionsGodbout Sean

View Form 4 filing at SEC

Filing context

Reporting owners and roles: Godbout Sean (officer (Chief Accounting Officer))

  • Godbout SeanOption exercise or conversion27 shares · Value unavailable
    Transaction details

    officer (Chief Accounting Officer) · Direct ownership · Common Stock · Code M/A

  • Godbout SeanTax/exercise-price payment8 shares · $1,759.04
    Transaction details

    officer (Chief Accounting Officer) · Direct ownership · Common Stock · Code F/D

Transaction details unavailableParini Michael

View Form 4 filing at SEC

Filing context

Reporting owners and roles: Parini Michael (officer (Chief Legal Officer))

Transaction details unavailable.

Options, grants, withholding, and gifts are context, not voluntary market purchases or sales.

Purchase and sale labels describe reported transaction codes; they do not indicate whether the transaction is favorable.