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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0001125282-06-001440
Filing Date
2006-03-06
Accepted
2006-03-06 17:28:50
Documents
1
Group Members
D. E. SHAW & CO., L.P.DAVID E. SHAW

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G b412126_13g.txt SC 13G 16940
  Complete submission text file 0001125282-06-001440.txt   18897
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: 1231
Type: SC 13G | Act: 34 | File No.: 005-47771 | Film No.: 06668171
SIC: 2834 Pharmaceutical Preparations

Mailing Address 120 W. 45TH STREET 39 FLOOR NEW YORK NY 10036
Business Address 120 W. 45TH STREET 39 FLOOR NEW YORK NY 10036 (212) 478-0000
D. E. Shaw Valence Portfolios, L.L.C. (Filed by) CIK: 0001294704 (see all company filings)

IRS No.: 134046559 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G