Corporate Governance | Regeneron Pharmaceuticals Inc.

Date	Name	Title	Filing	Type	Shares Traded	Price	Total Held
Dec 03, 2009	YANCOPOULOS GEORGE Director, EVP CSO & Pres Regn Res Labs	Director, EVP CSO & Pres Regn 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	45,463	$19.29	642,772
Dec 03, 2009	YANCOPOULOS GEORGE Director, EVP CSO & Pres Regn Res Labs	Director, EVP CSO & Pres Regn 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	22,397	$19.29	620,375
Dec 16, 2008	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	32,946	$16.42	603,157
Dec 16, 2008	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	14,922	$16.42	588,235
Apr 13, 2007	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	38,835	$24.60	118,705
Apr 13, 2007	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	20,326	$24.60	98,379
Jan 03, 2007	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	4,957	$19.69	72,606
Jan 03, 2007	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	2,038	$19.69	70,568
Dec 27, 2005	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	15,865	$15.67	68,085
Dec 27, 2005	YANCOPOULOS GEORGE Director, EVP, CSO, & Pres Regn Res Labs	Director, EVP, CSO, & Pres Regn 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	1,259	$15.67	66,826

* 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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