Alexion Pharmaceuticals, Inc. Watch

Other Revised 05/11/21 Alexion Pharmaceuticals, Inc. - Shareholder/Analyst Call 05/11/21 Other Revised 01/12/21 Alexion Pharmaceuticals, Inc. Presents at 39th Annual JPMorgan Virtual Healthcare Conference, Jan-12-2021 04:30 AM 01/12/21

Other Revised 12/01/20 Alexion Pharmaceuticals, Inc. Presents at Evercore ISI 3rd Annual HealthCONx Conference, Dec-01-2020 08:50 AM 12/01/20 Other Revised 11/17/20 Alexion Pharmaceuticals, Inc. Presents at 2020 Stifel Virtual Healthcare Conference, Nov-17-2020 10:00 AM 11/17/20 Earnings Revised 10/29/20 Alexion Pharmaceuticals, Inc., Q3 2020 Earnings Call, Oct 29, 2020 10/29/20 Other Revised 10/06/20 Alexion Pharmaceuticals, Inc. - Analyst/Investor Day 10/06/20 Other Revised 09/14/20 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley 18th Annual Global Healthcare Conference, Sep-14-2020 02:15 PM 09/14/20 Other Revised 09/10/20 Alexion Pharmaceuticals, Inc. Presents at Citi 15th Annual Biopharma Virtual Conference 2020, Sep-10-2020 10:45 AM 09/10/20 Earnings Revised 07/30/20 Alexion Pharmaceuticals, Inc., Q2 2020 Earnings Call, Jul 30, 2020 07/30/20 Other Revised 06/22/20 Alexion Pharmaceuticals, Inc. Presents at Bank of America Napa Healthcare Conference, Jun-22-2020 11:00 AM 06/22/20 Other Revised 06/09/20 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 41st Annual Global Healthcare Conference, Jun-09-2020 10:20 AM 06/09/20 Other Revised 05/13/20 Alexion Pharmaceuticals, Inc. - Shareholder/Analyst Call 05/13/20 Other Revised 05/12/20 Alexion Pharmaceuticals, Inc. Presents at BofA Securities 2020 Health Care Conference, May-12-2020 01:00 PM 05/12/20 Earnings Revised 05/06/20 Alexion Pharmaceuticals, Inc., Q1 2020 Earnings Call, May 06, 2020 05/06/20 Other Revised 05/05/20 Portola Pharmaceuticals, Inc., Alexion Pharmaceuticals, Inc. - M&A Call 05/05/20 Other Revised 03/03/20 Alexion Pharmaceuticals, Inc. Presents at Cowen and Company 40th Annual Health Care Conference, Mar-03-2020 09:20 AM 03/03/20 Other Revised 02/25/20 Alexion Pharmaceuticals, Inc. Presents at 9th Annual SVB Leerink Global Healthcare Conference, Feb-25-2020 09:30 AM 02/25/20 Earnings Revised 01/30/20 Alexion Pharmaceuticals, Inc., Q4 2019 Earnings Call, Jan 30, 2020 01/30/20 Other Revised 01/14/20 Alexion Pharmaceuticals, Inc. Presents at 38th Annual J.P Morgan Healthcare Conference, Jan-13-2020 through Jan-16-2020 01/14/20

Other Revised 12/03/19 Alexion Pharmaceuticals, Inc. Presents at Evercore ISI 2nd Annual HealthCONx Conference, Dec-03-2019 08:45 AM 12/03/19 Other Revised 11/19/19 Alexion Pharmaceuticals, Inc. Presents at Stifel 2019 Healthcare Conference, Nov-19-2019 08:35 AM 11/19/19 Earnings Revised 10/23/19 Alexion Pharmaceuticals, Inc., Q3 2019 Earnings Call, Oct 23, 2019 10/23/19 Other Revised 10/16/19 Achillion Pharmaceuticals, Inc., Alexion Pharmaceuticals, Inc. - M&A Call 10/16/19 Other Revised 09/09/19 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley 17th Annual Global Healthcare Conference, Sep-09-2019 08:45 AM 09/09/19 Other Revised 09/04/19 Alexion Pharmaceuticals, Inc. Presents at Citi's 14th Annual Biotech Conference, Sep-04-2019 12:00 PM 09/04/19 Earnings Revised 07/24/19 Alexion Pharmaceuticals, Inc., Q2 2019 Earnings Call, Jul 24, 2019 07/24/19 Other Revised 05/21/19 Alexion Pharmaceuticals, Inc. Presents at RBC Capital Markets 2019 Global Healthcare Conference, May-21-2019 09:30 AM 05/21/19 Other Revised 05/20/19 Alexion Pharmaceuticals, Inc. Presents at UBS Global Healthcare Conference 2019, May-20-2019 11:30 AM 05/20/19 Earnings Revised 04/25/19 Alexion Pharmaceuticals, Inc., Q1 2019 Earnings Call, Apr 25, 2019 04/25/19 Other Revised 03/20/19 Alexion Pharmaceuticals, Inc. - Analyst/Investor Day 03/20/19 Other Revised 03/12/19 Alexion Pharmaceuticals, Inc. Presents at 39th Annual Cowen Health Care Conference, Mar-12-2019 11:20 AM 03/12/19 Other Revised 02/27/19 Alexion Pharmaceuticals, Inc. Presents at 8th Annual SVB Leerink Global Healthcare Conference, Feb-27-2019 11:00 AM 02/27/19 Earnings Revised 02/04/19 Alexion Pharmaceuticals, Inc., Q4 2018 Earnings Call, Feb 04, 2019 02/04/19 Other Revised 01/08/19 Alexion Pharmaceuticals, Inc. Presents at The 37th Annual J.P. Morgan Healthcare Conference, Jan-07-2019 through Jan-10-2019 01/08/19 Other Revised 01/03/19 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 11th Annual Healthcare CEOs Unscripted: A View from the Top Conference, Jan-03-2019 08:00 AM 01/03/19

Other Revised 11/27/18 Alexion Pharmaceuticals, Inc. Presents at Evercore HEALTHCONx Healthcare Conference, Nov-27-2018 08:45 AM 11/27/18 Other Revised 11/13/18 Alexion Pharmaceuticals, Inc. Presents at 27th Annual Credit Suisse Healthcare Conference, Nov-13-2018 08:00 AM 11/13/18 Earnings Revised 10/24/18 Alexion Pharmaceuticals, Inc., Q3 2018 Earnings Call, Oct 24, 2018 10/24/18 Other Revised 10/02/18 Alexion Pharmaceuticals, Inc. Presents at Leerink Partners Roundtable Series: Rare Disease & Oncology 2018, Oct-02-2018 10:00 AM 10/02/18 Other Revised 09/26/18 Alexion Pharmaceuticals, Inc., Syntimmune, Inc. - M&A Call 09/26/18 Other Revised 09/24/18 Alexion Pharmaceuticals, Inc. - Special Call 09/24/18 Other Revised 09/14/18 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley 16th Annual Global Healthcare Conference, Sep-14-2018 11:05 AM 09/14/18 Other Revised 09/06/18 Alexion Pharmaceuticals, Inc. Presents at Citi's 13th Annual Biotech Conference, Sep-06-2018 08:15 AM 09/06/18 Earnings Revised 07/26/18 Alexion Pharmaceuticals, Inc., Q2 2018 Earnings Call, Jul 26, 2018 07/26/18 Other Revised 06/12/18 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 39th Annual Global Healthcare Conference, Jun-12-2018 11:20 AM 06/12/18 Other Revised 05/16/18 Alexion Pharmaceuticals, Inc. Presents at Bank of America Merrill Lynch 2018 Healthcare Conference, May-16-2018 02:20 PM 05/16/18 Earnings Revised 04/26/18 Alexion Pharmaceuticals, Inc., Q1 2018 Earnings Call, Apr 26, 2018 04/26/18 Other Revised 03/15/18 Alexion Pharmaceuticals, Inc. - Special Call 03/15/18 Other Revised 02/14/18 Alexion Pharmaceuticals, Inc. Presents at Leerink Partners 7th Annual Global Healthcare Conference, Feb-14-2018 11:00 AM 02/14/18 Earnings Revised 02/08/18 Alexion Pharmaceuticals, Inc., Q4 2017 Earnings Call, Feb 08, 2018 02/08/18 Other Revised 01/08/18 Alexion Pharmaceuticals, Inc. Presents at 36th Annual J.P. Morgan Healthcare Conference, Jan-08-2018 through Jan-11-2018 01/08/18

Other Revised 12/07/17 Alexion Pharmaceuticals, Inc. Presents at Citi Global Healthcare Conference, Dec-07-2017 09:30 AM 12/07/17 Other Revised 11/07/17 Alexion Pharmaceuticals, Inc. Presents at Credit Suisse 26th Annual Healthcare Conference, Nov-07-2017 10:20 AM 11/07/17 Earnings Revised 10/26/17 Alexion Pharmaceuticals, Inc., Q3 2017 Earnings Call, Oct 26, 2017 10/26/17 Other Revised 09/27/17 Alexion Pharmaceuticals, Inc. Presents at LEERINK Partners Roundtable Series on Rare Disease and Immuno-Oncology, Sep-27-2017 09:00 AM 09/27/17 Other Revised 09/12/17 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley 15th Annual Global Healthcare Conference, Sep-12-2017 02:55 PM 09/12/17 Other Revised 09/12/17 Alexion Pharmaceuticals, Inc. - Special Call 09/12/17 Earnings Revised 07/27/17 Alexion Pharmaceuticals, Inc., Q2 2017 Earnings Call, Jul 27, 2017 07/27/17 Other Revised 06/14/17 Alexion Pharmaceuticals, Inc. Presents at The William Blair 2017 Growth Stock Conference, Jun-14-2017 11:20 AM 06/14/17 Other Revised 06/13/17 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 38th Annual Global Healthcare Conference, Jun-13-2017 11:20 AM 06/13/17 Other Revised 05/16/17 Alexion Pharmaceuticals, Inc. Presents at Bank of America Merrill Lynch 2017 Healthcare Conference, May-16-2017 10:40 AM 05/16/17 Earnings Revised 04/27/17 Alexion Pharmaceuticals, Inc., Q1 2017 Earnings Call, Apr 27, 2017 04/27/17 Other Revised 03/07/17 Alexion Pharmaceuticals, Inc. Presents at The Raymond James 38th Annual Institutional Investors Conference 2017, Mar-07-2017 01:05 PM 03/07/17 Other Revised 03/06/17 Alexion Pharmaceuticals, Inc. Presents at Cowen and Company 37th Annual Health Care Conference, Mar-06-2017 01:20 PM 03/06/17 Earnings Revised 02/16/17 Alexion Pharmaceuticals, Inc., Q4 2016 Earnings Call, Feb 16, 2017 02/16/17 Other Revised 01/09/17 Alexion Pharmaceuticals, Inc. Presents at 35th Annual JP Morgan Healthcare Conference, Jan-09-2017 08:00 AM 01/09/17

Other Revised 12/12/16 Alexion Pharmaceuticals, Inc. - Special Call 12/12/16 Other Revised 12/07/16 Alexion Pharmaceuticals, Inc. Presents at Citi Global Healthcare Conference, Dec-07-2016 11:00 AM 12/07/16 Earnings Revised 10/27/16 Alexion Pharmaceuticals, Inc., Q3 2016 Earnings Call, Oct 27, 2016 10/27/16 Other Revised 09/13/16 Alexion Pharmaceuticals, Inc. Presents at The 2016 Morgan Stanley Global Healthcare Conference, Sep-13-2016 09:10 AM 09/13/16 Earnings Revised 07/28/16 Alexion Pharmaceuticals, Inc., Q2 2016 Earnings Call, Jul 28, 2016 07/28/16 Other Revised 06/08/16 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 37th Annual Global Healthcare Conference, Jun-08-2016 08:40 AM 06/08/16 Other Revised 06/06/16 Alexion Pharmaceuticals, Inc. - Special Call 06/06/16 Other Revised 05/10/16 Alexion Pharmaceuticals, Inc. Presents at Bank of America Merrill Lynch 2016 Healthcare Conference, May-10-2016 10:40 AM 05/10/16 Earnings Revised 04/28/16 Alexion Pharmaceuticals, Inc., Q1 2016 Earnings Call, Apr 28, 2016 04/28/16 Other Revised 03/16/16 Alexion Pharmaceuticals, Inc. Presents at Barclays Global Healthcare Conference, Mar-16-2016 04:50 PM 03/16/16 Earnings Revised 02/03/16 Alexion Pharmaceuticals, Inc., Q4 2015 Earnings Call, Feb 03, 2016 02/03/16 Other Revised 01/12/16 Alexion Pharmaceuticals, Inc. Presents at JPMorgan 34th Annual Healthcare Conference, Jan-12-2016 10:30 AM 01/12/16

Other Revised 12/10/15 Alexion Pharmaceuticals, Inc. - Analyst/Investor Day 12/10/15 Other Revised 12/08/15 Alexion Pharmaceuticals, Inc. - Special Call 12/08/15 Earnings Revised 10/29/15 Alexion Pharmaceuticals, Inc., Q3 2015 Earnings Call, Oct 29, 2015 10/29/15 Other Revised 10/26/15 Alexion Pharmaceuticals, Inc. - Special Call 10/26/15 Other Revised 09/16/15 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley Global Healthcare Conference - New York, Sep-16-2015 04:50 PM 09/16/15 Earnings Revised 07/30/15 Alexion Pharmaceuticals, Inc., Q2 2015 Earnings Call, Jul 30, 2015 07/30/15 Other Revised 06/10/15 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 36th Annual Global Healthcare Conference, Jun-10-2015 08:40 AM 06/10/15 Other Revised 05/13/15 Alexion Pharmaceuticals, Inc. Presents at Bank of America Merrill Lynch 2015 Health Care Conference, May-13-2015 01:00 PM 05/13/15 Other Revised 05/06/15 Alexion Pharmaceuticals, Inc., Synageva BioPharma Corp. - M&A Call 05/06/15 Earnings Revised 04/23/15 Alexion Pharmaceuticals, Inc., Q1 2015 Earnings Call, Apr 23, 2015 04/23/15 Other Revised 03/12/15 Alexion Pharmaceuticals, Inc. Presents at Barclays Global Healthcare Conference, Mar-12-2015 09:30 AM 03/12/15 Earnings Revised 01/29/15 Alexion Pharmaceuticals, Inc., Q4 2014 Earnings Call, Jan 29, 2015 01/29/15 Other Revised 01/12/15 Alexion Pharmaceuticals, Inc. Presents at 33rd Annual J.P. Morgan Healthcare Conference, Jan-12-2015 10:30 AM 01/12/15

Earnings Revised 10/23/14 Alexion Pharmaceuticals, Inc., Q3 2014 Earnings Call, Oct 23, 2014 10/23/14 Other Revised 09/08/14 Alexion Pharmaceuticals, Inc. Presents at 2014 Morgan Stanley Global Healthcare Conference, Sep-08-2014 01:25 PM 09/08/14 Earnings Revised 07/24/14 Alexion Pharmaceuticals, Inc., Q2 2014 Earnings Call, Jul 24, 2014 07/24/14 Other Revised 06/10/14 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 35th Annual Global Healthcare Conference, Jun-10-2014 08:40 AM 06/10/14 Other Revised 05/19/14 Alexion Pharmaceuticals, Inc. Presents at UBS Global Healthcare Conference, May-19-2014 09:30 AM 05/19/14 Other Revised 05/14/14 Alexion Pharmaceuticals, Inc. Presents at Bank of America Merrill Lynch Health Care Conference, May-14-2014 01:00 PM 05/14/14 Other Revised 05/08/14 Alexion Pharmaceuticals, Inc. Presents at Deutsche Bank Securities 39th Annual Health Care Conference, May-08-2014 10:00 AM 05/08/14 Earnings Revised 04/24/14 Alexion Pharmaceuticals, Inc., Q1 2014 Earnings Call, Apr 24, 2014 04/24/14 Other Revised 03/12/14 Alexion Pharmaceuticals, Inc. Presents at Barclays Capital 2014 Global Healthcare Conference, Mar-12-2014 08:00 AM 03/12/14 Earnings Revised 01/30/14 Alexion Pharmaceuticals, Inc., Q4 2013 Earnings Call, Jan 30, 2014 01/30/14 Other Revised 01/15/14 Alexion Pharmaceuticals, Inc. Presents at The JPMorgan 32nd Annual Healthcare Conference, Jan-15-2014 09:30 AM 01/15/14

Other Revised 11/14/13 Alexion Pharmaceuticals, Inc. Presents at 2013 Credit Suisse Annual Healthcare Conference, Nov-14-2013 09:30 AM 11/14/13 Earnings Revised 10/24/13 Alexion Pharmaceuticals, Inc., Q3 2013 Earnings Call, Oct 24, 2013 10/24/13 Other Revised 09/11/13 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley Global Healthcare Conference, Sep-11-2013 12:55 PM 09/11/13 Earnings Revised 07/25/13 Alexion Pharmaceuticals, Inc., Q2 2013 Earnings Call, Jul 25, 2013 07/25/13 Other Revised 06/12/13 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 34th Annual Global Healthcare Conference, Jun-12-2013 08:40 AM 06/12/13 Other Revised 05/30/13 Alexion Pharmaceuticals, Inc. Presents at 38th Annual Deutsche Bank Health Care Conference, May-30-2013 03:30 PM 05/30/13 Other Revised 05/15/13 Alexion Pharmaceuticals, Inc. Presents at Merrill Lynch 2013 Health Care Conference, May-15-2013 08:00 AM 05/15/13 Earnings Revised 04/25/13 Alexion Pharmaceuticals, Inc., Q1 2013 Earnings Call, Apr 25, 2013 04/25/13 Other Revised 03/12/13 Alexion Pharmaceuticals, Inc. Presents at Barclays Global Healthcare Conference, Mar-12-2013 10:45 AM 03/12/13 Earnings Revised 02/14/13 Alexion Pharmaceuticals, Inc., Q4 2012 Earnings Call, Feb 14, 2013 02/14/13 Other Revised 01/07/13 Alexion Pharmaceuticals, Inc. Presents at 31st Annual JPMorgan Healthcare Conference, Jan-07-2013 09:00 AM 01/07/13

Earnings Revised 10/24/12 Alexion Pharmaceuticals, Inc., Q3 2012 Earnings Call, Oct 24, 2012 10/24/12 Other Revised 09/12/12 Alexion Pharmaceuticals, Inc. Presents at Morgan Stanley Global Healthcare Conference, Sep-12-2012 09:45 AM 09/12/12 Earnings Revised 07/25/12 Alexion Pharmaceuticals, Inc., Q2 2012 Earnings Call, Jul 25, 2012 07/25/12 Other Revised 06/05/12 Alexion Pharmaceuticals, Inc. Presents at Goldman Sachs 33rd Annual Global Healthcare Conference, Jun-05-2012 01:20 PM 06/05/12 Other Revised 05/17/12 Alexion Pharmaceuticals, Inc. Presents at BofA Merrill Lynch 2012 Health Care Conference, May-17-2012 08:00 AM 05/17/12 Other Revised 05/07/12 Alexion Pharmaceuticals, Inc. Presents at Deutsche Bank Securities' 37th Annual Health Care Conference, May-07-2012 11:20 AM 05/07/12 Earnings Revised 04/24/12 Alexion Pharmaceuticals, Inc., Q1 2012 Earnings Call, Apr 24, 2012 04/24/12 Other Revised 03/13/12 Alexion Pharmaceuticals, Inc. Presents at Barclays Capital 2012 Global Healthcare Conference, Mar-13-2012 03:30 PM 03/13/12 Earnings Revised 02/09/12 Alexion Pharmaceuticals, Inc., Q4 2011 Earnings Call, Feb 09, 2012 02/09/12

Other Revised 12/29/11 Alexion Pharmaceuticals, Inc., Enobia Pharma, Inc. - M&A Call 12/29/11 Earnings Revised 10/20/11 Alexion Pharmaceuticals, Inc., Q3 2011 Earnings Call, Oct 20, 2011 10/20/11 Other Revised 09/26/11 Alexion Pharmaceuticals, Inc. - Special Call 09/26/11 Other Revised 09/21/11 Alexion Pharmaceuticals, Inc. Presents at UBS Investment Bank's Global Life Sciences Conference, Sep-21-2011 02:30 PM 09/21/11 Other Revised 09/13/11 Alexion Pharmaceuticals, Inc. Presents at The 2011 Morgan Stanley Global Healthcare Conference, Sep-13-2011 08:00 AM 09/13/11 Earnings Revised 07/21/11 Alexion Pharmaceuticals, Inc., Q2 2011 Earnings Call, Jul 21, 2011 07/21/11 Earnings Revised 04/21/11 Alexion Pharmaceuticals, Inc., Q1 2011 Earnings Call, Apr 21, 2011 04/21/11 Earnings Revised 02/10/11 Alexion Pharmaceuticals, Inc., Q4 2010 Earnings Call, Feb 10, 2011 02/10/11

Earnings Revised 10/21/10 Alexion Pharmaceuticals, Inc., Q3 2010 Earnings Call, Oct 21, 2010 10/21/10 Earnings Revised 07/22/10 Alexion Pharmaceuticals, Inc., Q2 2010 Earnings Call, Jul-22-2010 07/22/10 Earnings Revised 04/22/10 Alexion Pharmaceuticals, Inc., Q1 2010 Earnings Call, Apr-22-2010 04/22/10 Earnings Revised 02/11/10 Alexion Pharmaceuticals, Inc., Q4 2009 Earnings Call, Feb-11-2010 02/11/10

Earnings Revised 10/22/09 Alexion Pharmaceuticals, Inc., Q3 2009 Earnings Call, Oct-22-2009 10/22/09 Earnings Revised 07/23/09 Alexion Pharmaceuticals, Inc., Q2 2009 Earnings Call, Jul-23-2009 07/23/09 Earnings Revised 04/23/09 Alexion Pharmaceuticals, Inc., Q1 2009 Earnings Call, Apr 23, 2009 04/23/09

Earnings Revised 10/23/08 Alexion Pharmaceuticals, Inc., Q3 2008 Earnings Call, Oct-23-2008 10/23/08 Earnings Revised 07/29/08 Alexion Pharmaceuticals, Inc., Q2 2008 Earnings Call, Jul-29-2008 07/29/08 Earnings Revised 04/30/08 Alexion Pharmaceuticals, Inc., Q1 2008 Earnings Call, Apr-30-2008 04/30/08 Earnings Revised 02/14/08 Alexion Pharmaceuticals, Inc., Q4 2007 Earnings Call, Feb-14-2008 02/14/08