Corporate Governance | Regeneron Pharmaceuticals Inc.

Date	Name	Title	Filing	Type	Shares Traded	Price	Total Held
Dec 17, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	161	$179.13	1,294,755
Dec 17, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	47	$179.13	1,294,708
Dec 17, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	6,163	$179.13	1,298,648
Dec 17, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	1,814	$179.13	1,296,834
Dec 17, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	230,350	$179.13	1,066,484
Dec 14, 2012	YANCOPOULOS GEORGE Director, EVP CSO Pres Regen Res Labs	Director, EVP CSO Pres Regen Res Labs	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	38,391	$179.13	1,294,650
Feb 15, 2012	YANCOPOULOS GEORGE Director, EVP CSO President Regeneron Re	Director, EVP CSO President Regeneron Re	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	10,103	$109.29	952,840
Feb 15, 2012	YANCOPOULOS GEORGE Director, EVP CSO President Regeneron Re	Director, EVP CSO President Regeneron Re	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	55,191	$109.29	897,649
Feb 15, 2012	YANCOPOULOS GEORGE Director, EVP CSO President Regeneron Re	Director, EVP CSO President Regeneron Re	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	266	$109.29	900,813
Feb 15, 2012	YANCOPOULOS GEORGE Director, EVP CSO President Regeneron Re	Director, EVP CSO President Regeneron Re	Form 4	Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3	1,457	$109.29	899,356

* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.

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