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Filing metadata

Accession number: 0001237899-12-000056
Form type: Form 4
Filer: REGENERON PHARMACEUTICALS INC
CIK: CIK 872589
Filed: May 21, 2012
Reporting period: May 18, 2012
Description: Insider transaction

Documents

0001237899-12-000056-index.htm

Complete submission

0001237899-12-000056.txt

directory listing

Filed by

REGENERON PHARMACEUTICALS INC