No.2
Disclosure
2026/10/28 19:23
四半期報告書（10-Q）
BIIB BiogenS&P 500 member / Health Care
2 posts
Biogen (BIIB) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
Biogen (BIIB) Stock Price History
Biogen closed at $248.35 on Nov 6, 2026, +11.4% over 1 month, +59.7% over 1 year.
Price5-day MA25-day MAS&P 500Disclosures
1-Month High$254.46Nov 4
1-Month Low$218.43Oct 8
1-Week Change−2.1%vs Oct 30
1-Month Change+11.4%vs Oct 6
If you had invested $1,000 1 month ago, it would be worth $1,114 today (+11.4%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved −5.7%, while this stock moved +11.4%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Nov 6 (Fri) | $248.35 | +4.42 | +1.81% |
| Nov 5 (Thu) | $243.93 | −10.53 | −4.14% |
| Nov 4 (Wed) | $254.46 | +5.53 | +2.22% |
| Nov 3 (Tue) | $248.93 | −0.08 | −0.03% |
| Nov 2 (Mon) | $249.01 | −4.61 | −1.82% |
| Oct 30 (Fri) | $253.62 | +3.97 | +1.59% |
| Oct 29 (Thu) | $249.65 | +5.60 | +2.29% |
| Oct 28 (Wed) | $244.05 | −8.68 | −3.43% |
| Oct 27 (Tue) | $252.73 | +0.47 | +0.19% |
| Oct 26 (Mon) | $252.26 | +1.57 | +0.63% |
Price5-day MA25-day MAS&P 500Disclosures
3-Month High$254.46Nov 4
3-Month Low$203.89Aug 11
1-Month Change+11.4%vs Oct 6
3-Month Change+20.4%vs Aug 6
If you had invested $1,000 3 months ago, it would be worth $1,204 today (+20.4%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved −4.3%, while this stock moved +20.4%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Nov 6 (Fri) | $248.35 | +4.42 | +1.81% |
| Nov 5 (Thu) | $243.93 | −10.53 | −4.14% |
| Nov 4 (Wed) | $254.46 | +5.53 | +2.22% |
| Nov 3 (Tue) | $248.93 | −0.08 | −0.03% |
| Nov 2 (Mon) | $249.01 | −4.61 | −1.82% |
| Oct 30 (Fri) | $253.62 | +3.97 | +1.59% |
| Oct 29 (Thu) | $249.65 | +5.60 | +2.29% |
| Oct 28 (Wed) | $244.05 | −8.68 | −3.43% |
| Oct 27 (Tue) | $252.73 | +0.47 | +0.19% |
| Oct 26 (Mon) | $252.26 | +1.57 | +0.63% |
Price25-day MA75-day MAS&P 500Disclosures
6-Month High$254.46Nov 4
6-Month Low$187.80May 20
3-Month Change+20.4%vs Aug 6
6-Month Change+30.2%vs May 6
If you had invested $1,000 6 months ago, it would be worth $1,302 today (+30.2%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +0.2%, while this stock moved +30.2%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Nov 2026 | $248.35 | −2.1% |
| Oct 2026 | $253.62 | +12.3% |
| Sep 2026 | $225.88 | +4.3% |
| Aug 2026 | $216.65 | +6.8% |
| Jul 2026 | $202.95 | −6.1% |
| Jun 2026 | $216.06 | +10.2% |
| May 2026 | $196.00 | +3.6% |
Price25-day MA75-day MAS&P 500Disclosures
52-Week High$254.46Nov 4
52-Week Low$155.51Nov 7
Year to Date+41.1%vs Dec 31
From 52-Week High−2.4%Nov 4
If you had invested $1,000 1 year ago, it would be worth $1,597 today (+59.7%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +9.6%, while this stock moved +59.7%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Nov 2026 | $248.35 | −2.1% |
| Oct 2026 | $253.62 | +12.3% |
| Sep 2026 | $225.88 | +4.3% |
| Aug 2026 | $216.65 | +6.8% |
| Jul 2026 | $202.95 | −6.1% |
| Jun 2026 | $216.06 | +10.2% |
| May 2026 | $196.00 | +3.6% |
| Apr 2026 | $189.28 | +3.2% |
| Mar 2026 | $183.33 | −4.4% |
| Feb 2026 | $191.82 | +6.6% |
| Jan 2026 | $179.89 | +2.2% |
| Dec 2025 | $175.99 | −3.3% |
| Nov 2025 | $182.09 | ― |
Price13-week MA26-week MAS&P 500
3-Year High$258.77Dec 25, 2023
3-Year Low$115.17Apr 7, 2025
Annualized Return+3.4%
Max Drawdown−55.5%
If you had invested $1,000 3 years ago, it would be worth $1,105 today (+10.5%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +67.1%, while this stock moved +10.5%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $248.35 | +41.1% |
| 2025 | $175.99 | ― |
Price13-week MA26-week MAS&P 500
5-Year High$318.06May 1, 2023
5-Year Low$115.17Apr 7, 2025
Annualized Return−1.7%
Max Drawdown−63.8%
If you had invested $1,000 5 years ago, it would be worth $918 today (−8.2%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +57.5%, while this stock moved −8.2%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $248.35 | +41.1% |
| 2025 | $175.99 | ― |
Price1-year MA2-year MAS&P 500
All-Time High$422.24Mar 2015
All-Time Low$0.35Dec 1994
Total Change+7,955.5%vs Oct 1991
Annualized Return+13.3%
If you had invested $1,000 in Oct 1991, it would be worth $80,555 today (+7,955.5%).Price change only; dividends and fees are not included.
Over the same period the S&P 500 moved +1,866.0%, while this stock moved +7,955.5%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | $248.35 | +41.1% |
| 2025 | $175.99 | +15.1% |
| 2024 | $152.92 | −40.9% |
| 2023 | $258.77 | −6.6% |
| 2022 | $276.92 | +15.4% |
| 2021 | $239.92 | −2.0% |
| 2020 | $244.86 | −17.5% |
| 2019 | $296.73 | −1.4% |
| 2018 | $300.92 | −5.5% |
| 2017 | $318.57 | +12.3% |
| 2016 | $283.58 | −7.4% |
| 2015 | $306.35 | −9.8% |
| 2014 | $339.45 | +21.4% |
| 2013 | $279.57 | +91.0% |
| 2012 | $146.37 | +33.0% |
| 2011 | $110.05 | +64.1% |
| 2010 | $67.05 | +25.3% |
| 2009 | $53.50 | +12.3% |
| 2008 | $47.63 | −16.3% |
| 2007 | $56.92 | +15.7% |
| 2006 | $49.19 | +8.6% |
| 2005 | $45.28 | −32.0% |
| 2004 | $66.61 | +81.5% |
| 2003 | $36.70 | +10.6% |
| 2002 | $33.17 | −51.9% |
| 2001 | $68.93 | +9.1% |
| 2000 | $63.19 | +92.9% |
| 1999 | $32.75 | +318.1% |
| 1998 | $7.83 | +36.7% |
| 1997 | $5.73 | +44.7% |
| 1996 | $3.96 | +21.8% |
| 1995 | $3.25 | +818.1% |
| 1994 | $0.35 | −63.0% |
| 1993 | $0.96 | −34.3% |
| 1992 | $1.46 | −32.7% |
| 1991 | $2.17 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Oct 1991). Please check the latest prices before trading.
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No.1
Disclosure
2026/10/28 19:07
臨時報告（重要事象）（8-K）
決算発表（経営成績・財政状態）（Item 2.02）／財務諸表および添付資料（Item 9.01）
決算発表（経営成績・財政状態）（Item 2.02）／財務諸表および添付資料（Item 9.01）
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