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Filing Detail
Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001085256-04-000048
Filing Date
2004-02-18
Accepted
2004-02-17 20:12:19
Documents
1

Document Format Files

Seq Description Document Type Size
1 alxn13g.txt SC 13G 12079
  Complete submission text file 0001085256-04-000048.txt   13966
Mailing Address 352 KNOTTER DRIVE CHESHIRE CT 06511
Business Address 352 KNOTTER DRIVE CHESHIRE CT 06511 2037761790
ALEXION PHARMACEUTICALS INC (Subject) CIK: 0000899866 (see all company filings)

IRS No.: 133648318 | State of Incorp.: DE | Fiscal Year End: 0731
Type: SC 13G | Act: 34 | File No.: 005-47771 | Film No.: 04611467
SIC: 2834 Pharmaceutical Preparations

Mailing Address 388 MARKET STREET SUITE 200 SAN FRANCISCO CA 94111
Business Address 388 MARKET STREET SUITE 200 SAN FRANCISCO CA 94111 4155912700
RS INVESTMENT MANAGEMENT CO LLC (Filed by) CIK: 0001085256 (see all company filings)

IRS No.: 943321067