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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000899140-99-000257
Filing Date
1999-04-06
Accepted
1999-04-06 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 AMENDMENT NO. 1 TO SCHEDULE 13G SC 13G/A 9464
  Complete submission text file 0000899140-99-000257.txt   11493
Mailing Address 466 LEXINGTON AVE NEW YORK NY 10017-3147
Business Address 466 LEXINGTON AVE 10TH FLOOR NEW YORK NY 10017 2125930300
WARBURG PINCUS ASSET MANAGEMENT INC (Filed by) CIK: 0000032835 (see all company filings)

IRS No.: 013267350 | Fiscal Year End: 0531

Mailing Address
Business Address 777 OLD SAW MILL RIVER RD TARRYTOWN NY 10591-6707 9143477000
REGENERON PHARMACEUTICALS INC (Subject) CIK: 0000872589 (see all company filings)

IRS No.: 133444607 | State of Incorp.: NY | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-41938 | Film No.: 99588192
SIC: 2834 Pharmaceutical Preparations