KEISER DAVID W

CIK 00012319531 companyCHESHIRE, CT

SEC Profile

Transactions

Companies

Filings

CIK

0001231953

Recent Transactions

50 trades

Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-09-11$40.36/sh−319→ 219,045 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-09-11$40.12/sh−319→ 219,045 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-09-11$40.36/sh−319→ 219,045 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-09-11$40.12/sh−319→ 219,045 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-07-25$80.00/sh−20,000→ 109,682 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-07-25$20.72/sh+4,375→ 129,682 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-07-25$21.00/sh+8,941→ 118,623 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock
2008-07-25−8,941→ 29,970 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-07-25$20.38/sh+5,500→ 125,307 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2008-07-25$17.67/sh+1,184→ 119,807 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock
2008-07-25−4,375→ 1,875 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock
2008-07-25−5,500→ 0 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock
2008-07-25−1,184→ 0 total
Award
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock
2007-07-11+20,000→ 20,000 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2007-05-08$10.50/sh+9,375→ 114,793 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2007-05-08$10.50/sh+9,375→ 114,793 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2007-05-08$47.00/sh−9,375→ 105,418 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001 per share
2007-05-08−9,375→ 9,375 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001 per share
2007-05-08$47.00/sh−9,375→ 105,418 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001 per share
2007-05-08−9,375→ 9,375 total
Award
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2006-01-09+10,000→ 10,000 total
Award
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2006-01-09+10,000→ 10,000 total
Award
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2006-01-09$20.72/sh+4,000→ 91,009 total
Award
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2006-01-09$20.72/sh+4,000→ 91,009 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2005-10-03−5,568→ 0 total
Tax Payment
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-10-03$28.03/sh−1,986→ 81,441 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-10-03$10.00/sh+5,568→ 87,009 total
Tax Payment
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-10-03$28.03/sh−1,986→ 81,441 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-10-03$10.00/sh+5,568→ 87,009 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2005-10-03−5,568→ 0 total
Award
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2005-09-21+8,000→ 8,000 total
Tax Payment
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-09-02$28.57/sh−7,500→ 62,000 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2005-09-02$10.00/sh+21,427→ 83,427 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2005-09-02−21,427→ 5,568 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$2.38/sh+4,000→ 55,500 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.70/sh−4,100→ 58,900 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2004-12-29−4,000→ 0 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.75/sh−200→ 58,500 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2004-12-29−7,500→ 11,500 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2004-12-29−4,000→ 0 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.75/sh−200→ 58,500 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.71/sh−200→ 58,700 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.70/sh−4,100→ 58,900 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$2.38/sh+7,500→ 63,000 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$24.71/sh−200→ 58,700 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2004-12-29−7,500→ 11,500 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$2.38/sh+7,500→ 63,000 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-12-29$2.38/sh+4,000→ 55,500 total
Exercise/Conversion
ALEXION PHARMACEUTICALS, INC.
Option to Purchase Common Stock, par value $.0001
2004-09-29−11,500→ 2,000 total
Sale
ALEXION PHARMACEUTICALS, INC.
Common Stock, par value $.0001
2004-09-29$18.06/sh−3,800→ 39,200 total

Companies

ALEXION PHARMACEUTICALS, INC.
Director, President & COO

Recent Filings

Address

C/O ALEXION PHARMACEUTICALS INC 352 KNOTTER DRIVE

CHESHIRE, CT, 06410

View on SEC.gov