REGENERON PHARMACEUTICALS, INC. - FORM 10-K - EX-21.1 - SUBSIDIARIES OF REGENERON PHARMACEUTICALS, INC.

file	filename
EX-10.2.15 - RESTRICTED STOCK AWARD AGREEMENT AND NOTICE OF GRANT TO EXECUTIVE OFFICERS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10215xar2014ltiprs.htm
EX-32 - CERTIFICATION OF CEO AND CFO PURSUANT TO 18 U.S.C. SECTION 1350 - REGENERON PHARMACEUTICALS, INC.	regn-ex_32x12312017x10k.htm
10-K - FORM 10-K - REGENERON PHARMACEUTICALS, INC.	regn-123117x10k.htm
EX-31.2 - CERTIFICATION OF CFO PURSUANT TO RULE 13A-14(A) - REGENERON PHARMACEUTICALS, INC.	regn-ex_312x12312017x10k.htm
EX-31.1 - CERTIFICATION OF CEO PURSUANT TO RULE 13A-14(A) - REGENERON PHARMACEUTICALS, INC.	regn-ex_311x12312017x10k.htm
EX-23.1 - CONSENT OF PRICEWATERHOUSECOOPERS LLP - REGENERON PHARMACEUTICALS, INC.	regn-ex_231x12312017x10k.htm
EX-10.2.16 - STOCK OPTION AGREEMENT AND NOTICE OF GRANT (NQ) TO NON-EMPLOYEE DIRECTORS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10216xar2014ltipnq.htm
EX-10.2.14 - STOCK OPTION AGREEMENT AND NOTICE OF GRANT (ISO) TO P. ROY VAGELOS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10214xar2014ltipis.htm
EX-10.2.13 - STOCK OPTION AGREEMENT AND NOTICE OF GRANT (NQ) TO P. ROY VAGELOS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10213xar2014ltipnq.htm
EX-10.2.12 - STOCK OPTION AGREEMENT AND NOTICE OF GRANT (ISO) TO EXECUTIVE OFFICERS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10212xar2014ltipis.htm
EX-10.2.11 - STOCK OPTION AGREEMENT AND NOTICE OF GRANT (NQ) TO EXECUTIVE OFFICERS - REGENERON PHARMACEUTICALS, INC.	regn-ex_10211xar2014ltipnq.htm

Exhibit 21.1

SUBSIDIARIES OF REGENERON PHARMACEUTICALS, INC.



	Name of Subsidiary*		State or Other Jurisdiction of Incorporation or Organization
	Loop Road Holdings LLC		New York
	Old Saw Mill Holdings LLC		New York
	OSMR Holdings		Bermuda
	OSMR International		Bermuda
	Regeneron Assurance, Inc.		New York
	Regeneron Belgium BVBA		Belgium
	Regeneron Capital International B.V.		The Netherlands
	Regeneron Genetics Center LLC		Delaware
	Regeneron Healthcare Solutions, Inc.		New York
	Regeneron International Holdings LLC		Delaware
	Regeneron International Unlimited Company		Ireland
	Regeneron Ireland Holdings Unlimited Company		Ireland
	Regeneron Ireland Unlimited Company		Ireland
	Regeneron Spain, S.L.U.		Spain
	Regeneron UK Limited		United Kingdom
	Rockwood Road Holdings LLC		New York
	_____________
	* Directly or indirectly wholly owned by Regeneron Pharmaceuticals, Inc.

REGENERON PHARMACEUTICALS, INC. - FORM 10-K - EX-21.1 - SUBSIDIARIES OF REGENERON PHARMACEUTICALS, INC. - February 8, 2018