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ALXN - As of  05/11/24, 10:27:36 AM:   100 Insider Transactions.

Sector: Healthcare    Industry: Biotechnology
Prev Close:$125.30  Avg Vol(3m): 1,882,510  P/E: 189.50  EPS: 0.66

Email this page to a friend.    Insider Transactions for ALXN

Buy/Sell* Filed Date Subject Symbol Acquirer Pct Owned Details
B 2020-02-14 13:29:49.0 ALEXION PHARMACEUTICALS ALXN STATE STREET CORP 7.57% view
S 2020-01-10 10:25:37.0 ALEXION PHARMACEUTICALS ALXN FMR LLC 7.9% view
B 2019-02-12 12:10:43.0 ALEXION PHARMACEUTICALS ALXN VANGUARD GROUP INC 7.27% view
B 2019-02-04 10:09:24.0 ALEXION PHARMACEUTICALS ALXN FMR LLC 11.122% view
S 2018-06-11 10:19:16.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 9.4% view
S 2018-02-13 13:11:18.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 7.926% view
B 2018-02-12 09:07:12.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 10.0% view
S 2017-02-14 10:42:13.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 3.2% view
S 2017-02-08 19:52:08.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 9.4% view
S 2017-01-19 17:23:56.0 ALEXION PHARMACEUTICALS INC ALXN Capital Research Global Investors 6.8% view
B 2016-08-10 10:57:16.0 ALEXION PHARMACEUTICALS INC ALXN Capital Research Global Investors 12.2% view
B 2016-02-12 08:49:30.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 12.5% view
B 2016-02-10 10:34:59.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 6.9% view
B 2015-02-13 13:57:56.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 10.1% view
B 2015-02-13 09:55:56.0 ALEXION PHARMACEUTICALS INC ALXN VANGUARD GROUP INC 5.37% view
B 2015-02-06 17:52:08.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 6.8% view
B 2014-12-10 13:32:44.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 10.052% view
B 2014-02-12 21:38:25.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 7.5% view
S 2014-02-07 10:32:50.0 ALEXION PHARMACEUTICALS INC ALXN WESTFIELD CAPITAL MANAGEMENT CO LP 0.0% view
S 2014-02-06 15:58:03.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 6.2% view
S 2013-03-08 12:42:05.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 7.696% view
B 2013-02-13 15:04:42.0 ALEXION PHARMACEUTICALS INC ALXN Capital Research Global Investors 9.5% view
B 2013-02-11 15:08:20.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 0.0% view
B 2013-02-06 09:54:37.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 11.49% view
B 2012-02-13 21:29:59.0 ALEXION PHARMACEUTICALS INC ALXN PRICE T ROWE ASSOCIATES INC 0.0% view
S 2012-02-13 12:28:19.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 4.95% view
B 2011-07-11 13:49:25.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 5.1% view
S 2011-02-10 15:32:32.0 ALEXION PHARMACEUTICALS INC ALXN COLUMBIA WANGER ASSET MANAGEMENT LLC n/a view
B 2011-02-03 12:40:02.0 ALEXION PHARMACEUTICALS INC ALXN FMR LLC 14.791% view
S 2010-02-12 13:02:30.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 4.68% view
B 2010-02-09 12:00:15.0 ALEXION PHARMACEUTICALS INC ALXN BlackRock Inc 5.03% view
S 2009-02-17 09:53:28.0 ALEXION PHARMACEUTICALS INC LAXN PRICE T ROWE ASSOCIATES INC 8.6% view
S 2009-02-05 10:25:29.0 ALEXION PHARMACEUTICALS INC LAXN WESTFIELD CAPITAL MANAGEMENT CO LP 4.84% view
B 2008-05-08 21:51:00.0 ALEXION PHARMACEUTICALS INC LAXN PRICE T ROWE ASSOCIATES INC 10.4% view
S 2008-02-25 11:36:11.0 ALEXION PHARMACEUTICALS INC LAXN FMR LLC n/a view
S 2008-02-14 08:21:53.0 ALEXION PHARMACEUTICALS INC LAXN BROOKSIDE CAPITAL PARTNERS FUND LP 2.71% view
S 2008-02-13 16:29:52.0 ALEXION PHARMACEUTICALS INC LAXN SECTORAL ASSET MANAGEMENT INC 4.0% view
S 2008-02-12 21:27:06.0 ALEXION PHARMACEUTICALS INC LAXN PRICE T ROWE ASSOCIATES INC 7.3% view
B 2008-02-11 15:23:37.0 ALEXION PHARMACEUTICALS INC LAXN WESTFIELD CAPITAL MANAGEMENT CO LLC 7.65% view
B 2007-07-27 17:14:26.0 ALEXION PHARMACEUTICALS INC LAXN MILLENCO 5.12% view
B 2007-04-09 13:57:33.0 ALEXION PHARMACEUTICALS INC LAXN MILLENCO 5.5% view
S 2007-03-28 16:14:26.0 ALEXION PHARMACEUTICALS INC LAXN DAVIDSON KEMPNER PARTNERS 4.61% view
S 2007-02-14 16:24:55.0 ALEXION PHARMACEUTICALS INC LAXN FMR CORP 3.3% view
B 2007-02-13 15:02:55.0 ALEXION PHARMACEUTICALS INC LAXN BlackRock Inc 5.2% view
S 2007-02-09 17:18:46.0 ALEXION PHARMACEUTICALS INC LAXN SECTORAL ASSET MANAGEMENT INC 4.38% view
S 2007-01-31 19:16:21.0 ALEXION PHARMACEUTICALS INC LAXN JANUS CAPITAL MANAGEMENT LLC 5.0% view
B 2006-03-06 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn D 6.2% view
B 2006-02-17 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BALYASNY ASSET MANAGEMENT LLC 9.8% view
S 2006-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BAKER FELIX 0.1% view
B 2006-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SECTORAL ASSET MANAGEMENT INC 8.5% view
S 2006-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PRICE T ROWE ASSOCIATES INC 5.9% view
B 2006-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn WESTFIELD CAPITAL MANAGEMENT CO LLC 6.05% view
S 2006-02-10 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn DUQUESNE CAPITAL MANAGEMENT L L C 0.7% view
S 2006-02-08 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn FEDERATED INVESTORS INC 0.01% view
S 2005-11-30 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PICTET & CIE EUROPE SA 5.3% view
B 2005-10-21 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BAKER FELIX 5.5% view
S 2005-02-15 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PRICE T ROWE ASSOCIATES INC 7.9% view
S 2005-02-15 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SECTORAL ASSET MANAGEMENT INC 6.9% view
S 2005-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SAC CAPITAL ADVISORS LLC 5.4% view
S 2005-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn FEDERATED INVESTORS INC n/a view
B 2005-02-08 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PRICE T ROWE ASSOCIATES INC 6.03% view
S 2005-01-07 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SAC CAPITAL ADVISORS LLC 0.0% view
S 2004-02-18 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISORS LLC 0.0% view
S 2004-02-18 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn FMR CORP n/a view
B 2004-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SECTORAL ASSET MANAGEMENT INC 8.7% view
S 2004-02-10 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PRICE T ROWE ASSOCIATES INC 5.8% view
B 2003-09-22 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PICTET & CIE EUROPE SA 5.44% view
B 2003-05-02 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED CAPITAL LLC 5.9% view
S 2003-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISORS LLC n/a view
B 2003-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn OPPENHEIMER FUNDS INC 6.1% view
B 2002-02-15 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ISALY SAMUEL D 5.52% view
S 2002-02-15 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn FRANKLIN RESOURCES INC 2.8% view
S 2002-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn CAPITAL RESEARCH & MANAGEMENT CO 0.0% view
S 2002-02-01 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISERS INC 5.25% view
B 2001-08-10 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn OPPENHEIMER MANAGEMENT CORP 5.0% view
S 2001-06-05 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISERS INC 4.2% view
S 2001-05-10 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn JANUS CAPITAL CORP 0.6% view
B 2001-04-09 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PUTNAM INVESTMENTS INC 12.0% view
S 2001-02-15 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SCUDDER KEMPER INVESTMENTS INC n/a view
B 2001-02-14 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn CAPITAL RESEARCH & MANAGEMENT CO 5.1% view
S 2001-02-12 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PRICE T ROWE ASSOCIATES INC 2.6% view
S 2001-01-31 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn FRANKLIN RESOURCES INC 5.4% view
S 2000-12-05 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn KAUFMANN FUND INC 1.32% view
B 2000-06-08 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn KAUFMANN FUND INC 5.19% view
S 2000-03-24 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISERS INC 4.4% view
S 2000-02-04 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn AMVESCAP PLC 5.4% view
S 2000-01-28 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SCUDDER KEMPER INVESTMENTS INC 6.0% view
B 1999-12-10 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn SCUDDER KEMPER INVESTMENTS INC 7.41% view
B 1999-03-25 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn ORBIMED ADVISERS INC 3.7% view
B 1999-02-26 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn CITIBANK NA 3.7% view
B 1999-02-16 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn COLLINSON HOWE VENTURE PARTNERS INC 3.7% view
B 1999-02-05 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn TYCO INTERNATIONAL LTD 0.0% view
B 1999-01-22 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn TYCO INTERNATIONAL LTD 7.3% view
B 1998-05-27 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BB BIOTECH AG 16.25% view
S 1998-02-19 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BIOTECHNOLOGY INVESTMENT GROUP L L C ET AL 5.5% view
B 1997-12-18 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BB BIOTECH AG 9.03% view
S 1997-11-21 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn PIONEERING MANAGEMENT CORP 100.0% view
B 1997-09-18 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BB BIOTECH AG 8.8% view
B 1997-02-28 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn BIOTECHNOLOGY INVESTMENT GROUP L L C ET AL 6.1% view
B 1997-02-13 00:00:00.0 ALEXION PHARMACEUTICALS INC alxn OAK MANAGEMENT CORP n/a 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.