ALEXION PHARMACEUTICALS INC filings

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SEC filings by ALEXION PHARMACEUTICALS INC (ownership)
TypeFiledFilerSubjectShares OwnedPercent Owned
SC 13G/A2002-02-11CAPITAL RESEARCH & MANAGEMENT COALEXION PHARMACEUTICALS INC-0.0%EDGAR
SC 13G/A2002-02-01SCUDDER KEMPER INVESTMENTS INCALEXION PHARMACEUTICALS INC55.0%EDGAR
SC 13G2001-08-10ORBIMED ADVISERS INC /CTALEXION PHARMACEUTICALS INC950,0005.2%EDGAR
SC 13G2001-08-10ORBIMED ADVISORS LLCALEXION PHARMACEUTICALS INC950,0005.2%EDGAR
SC 13G2001-06-06OPPENHEIMER MANAGEMENT CORPALEXION PHARMACEUTICALS INC2,000,00011.1%EDGAR
SC 13G/A2001-06-05ORBIMED ADVISERS INC /CTALEXION PHARMACEUTICALS INC750,5006.7%EDGAR
SC 13G/A2001-06-05ORBIMED ADVISERS INC /CTALEXION PHARMACEUTICALS INC614,3004.2%EDGAR
SC 13G/A2001-05-10JANUS CAPITAL CORPALEXION PHARMACEUTICALS INC100,0000.6%EDGAR
SC 13G2001-05-10FMR CORPALEXION PHARMACEUTICALS INC1,833,26910.1%EDGAR
SC 13G/A2001-04-09JANUS CAPITAL CORPALEXION PHARMACEUTICALS INC1,201,2256.7%EDGAR
SC 13G/A2001-02-15JANUS CAPITAL CORPALEXION PHARMACEUTICALS INC2,475,34013.7%EDGAR
SC 13G2001-02-15PUTNAM INVESTMENTS INCALEXION PHARMACEUTICALS INC976,2665.4%EDGAR
SC 13G/A2001-02-14SCUDDER KEMPER INVESTMENTS INCALEXION PHARMACEUTICALS INC1,373,4007.6%EDGAR
SC 13G/A2001-02-14BB BIOTECH AGALEXION PHARMACEUTICALS INC874,1134.9%EDGAR
SC 13G2001-02-12CAPITAL RESEARCH & MANAGEMENT COALEXION PHARMACEUTICALS INC--EDGAR
SC 13G2001-02-12CAPITAL RESEARCH & MANAGEMENT COALEXION PHARMACEUTICALS INC--EDGAR
SC 13G/A2001-02-07PRICE T ROWE ASSOCIATES INC /MD/ALEXION PHARMACEUTICALS INC481,1002.6%EDGAR
SC 13G2001-01-31FRANKLIN RESOURCES INCALEXION PHARMACEUTICALS INC967,8005.4%EDGAR
SC 13G/A2001-01-10AMVESCAP PLC \GA\ALEXION PHARMACEUTICALS INC00.0%EDGAR
SC 13G2000-12-05KAUFMANN FUND INCALEXION PHARMACEUTICALS INC236,8001.3%EDGAR
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