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BIIB - As of  11/10/24, 12:58:05 PM:   143 Insider Transactions.

Sector: Healthcare    Industry: Biotechnology
Prev Close:$252.54  Avg Vol(3m): 1,811,690  P/E: 15.50  EPS: 16.27

Email this page to a friend.    Insider Transactions for BIIB

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-02-12 14:40:04.0 BIOGEN INC BIIB PRIMECAP MANAGEMENT CO 8.42% view
B 2020-02-12 11:01:00.0 BIOGEN INC BIIB VANGUARD GROUP INC 7.68% view
B 2020-02-05 11:25:46.0 BIOGEN INC BIIB BlackRock Inc 8.7% view
B 2019-02-11 11:44:18.0 BIOGEN INC BIIB VANGUARD GROUP INC 7.52% view
B 2019-02-08 15:52:45.0 BIOGEN INC BIIB PRIMECAP MANAGEMENT CO 7.31% view
B 2019-02-04 10:22:55.0 BIOGEN INC BIIB BlackRock Inc 8.2% view
B 2018-02-08 12:18:03.0 BIOGEN INC BIIB VANGUARD GROUP INC 7.03% view
B 2018-01-29 16:40:21.0 BIOGEN INC BIIB BlackRock Inc 7.9% view
S 2017-02-14 10:47:47.0 BIOGEN INC BIIB FMR LLC 3.865% view
B 2017-02-10 12:16:08.0 BIOGEN INC BIIB VANGUARD GROUP INC 6.43% view
B 2017-01-19 17:24:56.0 BIOGEN INC BIIB BlackRock Inc 7.9% view
S 2016-02-12 08:57:56.0 BIOGEN INC BIIB FMR LLC 5.798% view
S 2016-02-12 06:19:50.0 BIOGEN INC BIIB PRIMECAP MANAGEMENT CO 7.09% view
S 2016-02-11 16:07:58.0 BIOGEN INC BIIB PRICE T ROWE ASSOCIATES INC 2.8% view
B 2016-02-10 10:15:58.0 BIOGEN INC BIIB BlackRock Inc 7.5% view
B 2016-02-10 08:47:12.0 BIOGEN INC BIIB VANGUARD GROUP INC 5.93% view
S 2015-02-13 13:50:31.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 7.27% view
S 2015-02-13 10:04:23.0 BIOGEN IDEC INC BIIB FMR LLC 8.379% view
B 2015-02-12 14:30:08.0 BIOGEN IDEC INC BIIB PRICE T ROWE ASSOCIATES INC 5.1% view
B 2015-02-10 17:45:27.0 BIOGEN IDEC INC BIIB VANGUARD GROUP INC 5.39% view
B 2015-01-29 14:20:17.0 BIOGEN IDEC INC BIIB BlackRock Inc 6.5% view
S 2014-02-14 15:59:46.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 7.53% view
B 2014-02-14 06:45:37.0 BIOGEN IDEC INC BIIB FMR LLC 10.209% view
S 2014-02-04 15:54:54.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 4.36% view
B 2014-02-04 15:48:32.0 BIOGEN IDEC INC BIIB BlackRock Inc 6.0% view
S 2013-02-14 13:49:31.0 BIOGEN IDEC INC BIIB FMR LLC 9.832% view
B 2013-02-14 11:56:35.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 5.05% view
S 2013-02-12 16:41:43.0 BIOGEN IDEC INC BIIB Capital Research Global Investors 4.6% view
S 2013-02-08 16:18:30.0 BIOGEN IDEC INC BIIB BlackRock Inc 5.4% view
B 2013-01-30 08:01:08.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 5.05% view
B 2012-08-10 11:06:58.0 BIOGEN IDEC INC BIIB FMR LLC 10.144% view
B 2012-02-14 12:12:29.0 BIOGEN IDEC INC BIIB FMR LLC 8.683% view
S 2012-02-14 08:47:54.0 BIOGEN IDEC INC BIIB Clearbridge Advisors 4.9% view
S 2012-02-13 21:29:52.0 BIOGEN IDEC INC BIIB Capital Research Global Investors 5.8% view
S 2012-02-13 13:28:39.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 9.81% view
B 2012-02-13 10:22:29.0 BIOGEN IDEC INC BIIB BlackRock Inc 7.1% view
S 2012-01-27 06:59:27.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 4.98% view
S 2011-11-03 14:40:13.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 9.96% view
S 2011-06-22 16:13:38.0 BIOGEN IDEC INC BIIB ICAHN CARL C 3.4% view
B 2011-05-23 17:04:53.0 BIOGEN IDEC INC BIIB ICAHN CARL C 5.56% view
S 2011-02-14 11:50:45.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 10.86% view
B 2011-02-11 17:26:15.0 BIOGEN IDEC INC BIIB GOLDMAN SACHS ASSET MANAGEMENT LP 3.4% view
S 2011-02-11 12:48:18.0 BIOGEN IDEC INC BIIB Clearbridge Advisors 6.94% view
B 2011-02-10 10:37:45.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 5.26% view
B 2011-02-09 15:29:05.0 BIOGEN IDEC INC BIIB Capital Research Global Investors 8.8% view
S 2011-02-02 16:11:41.0 BIOGEN IDEC INC BIIB BlackRock Inc 5.67% view
B 2010-08-10 12:19:55.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 10.89% view
B 2010-03-22 17:30:40.0 BIOGEN IDEC INC BIIB ICAHN CARL C n/a view
B 2010-02-16 12:46:38.0 BIOGEN IDEC INC BIIB FMR LLC 5.962% view
B 2010-01-29 14:13:54.0 BIOGEN IDEC INC BIIB BlackRock Inc 8.0% view
S 2010-01-28 17:24:40.0 BIOGEN IDEC INC BIIB ICAHN CARL C n/a view
B 2009-02-11 20:36:06.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 8.53% view
S 2009-02-06 17:22:46.0 BIOGEN IDEC INC BIIB ICAHN CARL C 5.51% view
S 2009-02-03 12:41:57.0 BIOGEN IDEC INC BIIB BARCLAYS GLOBAL INVESTORS NA 2.84% view
B 2008-08-11 17:28:48.0 BIOGEN IDEC INC BIIB ICAHN CARL C 6.03% view
S 2008-02-27 11:00:40.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 4.69% view
S 2008-02-14 16:16:01.0 BIOGEN IDEC INC BIIB FMR LLC n/a view
S 2008-02-14 15:31:35.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 8.17% view
S 2008-02-14 09:20:30.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 4.69% view
B 2008-02-14 09:05:08.0 BIOGEN IDEC INC BIIB Clearbridge Advisors 12.1% view
B 2008-02-05 15:37:41.0 BIOGEN IDEC INC BIIB BARCLAYS GLOBAL INVESTORS NA 4.38% view
B 2008-02-05 15:35:51.0 BIOGEN IDEC INC BIIB BARCLAYS GLOBAL INVESTORS NA 4.38% view
B 2008-02-05 15:32:58.0 BIOGEN IDEC INC BIIB BARCLAYS GLOBAL INVESTORS NA 4.38% view
S 2007-02-14 16:33:57.0 BIOGEN IDEC INC BIIB FMR CORP n/a view
S 2007-02-14 15:07:18.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 9.64% view
S 2007-02-14 12:23:17.0 BIOGEN IDEC INC BIIB VANGUARD CHESTER FUNDS 5.2% view
S 2007-02-09 17:39:23.0 BIOGEN IDEC INC BIIB CAPITAL RESEARCH & MANAGEMENT CO 4.2% view
B 2007-02-06 12:46:13.0 BIOGEN IDEC INC BIIB Clearbridge Advisors 10.62% view
S 2006-12-11 17:16:33.0 BIOGEN IDEC INC BIIB FMR CORP n/a view
S 2006-10-11 14:13:41.0 BIOGEN IDEC INC BIIB PRIMECAP MANAGEMENT CO 9.87% view
S 2006-02-14 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 10.02% view
S 2006-02-14 00:00:00.0 BIOGEN IDEC INC IDPH FMR CORP n/a view
S 2006-02-13 00:00:00.0 BIOGEN IDEC INC IDPH VANGUARD CHESTER FUNDS 5.34% view
S 2006-02-10 00:00:00.0 BIOGEN IDEC INC IDPH CAPITAL RESEARCH & MANAGEMENT CO 5.5% view
B 2006-01-10 00:00:00.0 BIOGEN IDEC INC IDPH CAM North America 6.39% view
S 2006-01-05 00:00:00.0 BIOGEN IDEC INC IDPH CITIGROUP INC 1.6% view
B 2005-11-08 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 10.04% view
S 2005-03-31 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 9.61% view
S 2005-02-14 00:00:00.0 BIOGEN IDEC INC IDPH VANGUARD CHESTER FUNDS 5.51% view
S 2005-02-14 00:00:00.0 BIOGEN IDEC INC IDPH FMR CORP n/a view
B 2005-02-11 00:00:00.0 BIOGEN IDEC INC IDPH CAPITAL RESEARCH & MANAGEMENT CO 5.5% view
B 2005-02-09 00:00:00.0 BIOGEN IDEC INC IDPH CITIGROUP INC 9.0% view
S 2004-04-21 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 9.74% view
B 2004-03-12 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 10.03% view
S 2004-02-17 00:00:00.0 BIOGEN IDEC INC IDPH FMR CORP n/a view
S 2004-02-12 00:00:00.0 BIOGEN IDEC INC IDPH WELLINGTON MANAGEMENT CO LLP 1.893% view
S 2004-02-11 00:00:00.0 BIOGEN IDEC INC IDPH CITIGROUP INC 8.6% view
B 2004-02-04 00:00:00.0 BIOGEN IDEC INC IDPH VANGUARD PRIMECAP FUND 5.8% view
B 2003-12-12 00:00:00.0 BIOGEN IDEC INC IDPH PRIMECAP MANAGEMENT CO 9.88% view
B 2003-08-11 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH PRIMECAP MANAGEMENT CO 9.6% view
S 2003-05-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
B 2003-03-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH WELLINGTON MANAGEMENT CO LLP 5.86% view
S 2003-02-13 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2003-02-13 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH MORGAN STANLEY 1.8824% view
B 2003-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH WELLINGTON MANAGEMENT CO LLP 5.74% view
B 2003-02-04 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CITIGROUP INC 11.0% view
S 2002-07-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2002-02-14 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2002-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH MORGAN STANLEY DEAN WITTER & CO 5.14% view
S 2002-01-24 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CITIGROUP INC 10.1% view
S 2001-12-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
B 2001-02-16 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CITIGROUP INC 10.4% view
S 2001-02-14 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2001-02-14 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH GENENTECH INC 3.58% view
B 2001-02-07 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH MORGAN STANLEY DEAN WITTER & CO 7.68% view
S 2001-01-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMVESCAP PLC 0.0% view
S 2000-12-01 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH WELLINGTON MANAGEMENT CO LLP 2.42% view
S 2000-07-19 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH GENENTECH INC 5.16% view
S 2000-04-07 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2000-03-21 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH GENENTECH INC 5.8% view
S 2000-02-11 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 2000-02-11 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH WELLINGTON MANAGEMENT CO LLP 6.39% view
B 2000-02-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH VANGUARD 4.27% view
B 2000-02-08 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CITIGROUP INC 8.4% view
B 2000-02-04 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMVESCAP PLC 2.77% view
S 1999-03-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
B 1999-02-16 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMERICAN CENTURY INVESTMENT MANAGEMENT INC 12.0% view
B 1999-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FMR CORP n/a view
S 1999-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FEINBERG LARRY N 4.25% view
B 1999-02-11 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH VANGUARD SPECIALIZED PORTFOLIOS INC 5.21% view
B 1999-02-08 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH WELLINGTON MANAGEMENT CO LLP 9.71% view
S 1999-02-05 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH MORGAN STANLEY DEAN WITTER & CO 2.86% view
B 1999-01-22 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CITIGROUP INC 7.0% view
S 1998-10-13 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMVESCAP PLC n/a view
S 1998-09-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMVESCAP PLC n/a view
B 1998-03-04 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FEINBERG LARRY N 8.2% view
B 1998-02-17 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH MORGAN STANLEY DEAN WITTER DISCOVER & CO 6.25% view
S 1998-02-13 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH GENENTECH INC 7.8% view
S 1998-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH INVESCO PLC 1.6% view
S 1998-02-11 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CAPITAL GROUP COMPANIES INC ET AL 4.8% view
B 1998-02-06 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH TRAVELERS GROUP INC 5.1% view
B 1998-02-04 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMERICAN CENTURY COMPANIES INC 6.0% view
B 1997-07-24 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FEINBERG LARRY N 8.18% view
B 1997-05-07 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH ML VENTURE PARTNERS II LP 2.02% view
S 1997-03-17 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH SMITHKLINE BEECHAM CORP 3.5% view
B 1997-03-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH FEINBERG LARRY N 5.47% view
S 1997-03-03 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH SMITHKLINE BEECHAM CORP 6.1% view
B 1997-02-14 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH INVESCO PLC 5.5% view
B 1997-02-12 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH CAPITAL GROUP COMPANIES INC ET AL 5.1% view
S 1996-12-13 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH SMITHKLINE BEECHAM CORP 8.0% view
B 1996-09-26 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH SMITHKLINE BEECHAM CORP 8.3% view
B 1996-07-10 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH AMERINDO INVESTMENT ADVISORS INC 2.96% view
B 1996-05-21 00:00:00.0 IDEC PHARMACEUTICALS CORP IDPH GENENTECH INC 9.5% view
* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.