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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in REGENERON PHARMACEUTICALS, INC.. Get notifications about new insider transactions in REGENERON PHARMACEUTICALS, INC. for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.53	100	953	7,317	7.4 K to 7.3 K (-1.35 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.50	300	2,850	7,417	7.7 K to 7.4 K (-3.89 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.49	1,300	12,337	7,717	9 K to 7.7 K (-14.42 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.48	1,200	11,376	9,017	10.2 K to 9 K (-11.75 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.45	100	945	10,217	10.3 K to 10.2 K (-0.97 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.44	900	8,496	10,317	11.2 K to 10.3 K (-8.02 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.43	2,881	27,168	11,217	14.1 K to 11.2 K (-20.44 %)
Aug 05 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Sell	S	9.42	1,950	18,369	14,098	16 K to 14.1 K (-12.15 %)
Jul 21 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Sell	S	10.00	2,177	21,770	36,516	38.7 K to 36.5 K (-5.63 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.55	129	1,232	18,667	18.8 K to 18.7 K (-0.69 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.53	28	267	18,796	18.8 K to 18.8 K (-0.15 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.52	28	267	18,824	18.9 K to 18.8 K (-0.15 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.51	291	2,767	18,852	19.1 K to 18.9 K (-1.52 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.50	657	6,242	19,143	19.8 K to 19.1 K (-3.32 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.49	29	275	19,800	19.8 K to 19.8 K (-0.15 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.47	28	265	19,829	19.9 K to 19.8 K (-0.14 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.46	43	407	19,857	19.9 K to 19.9 K (-0.22 %)
Jul 11 2005	REGN	REGENERON PHARMACE ...	KOLINSKI STUART	VP, Gen Counsel & S ...	Sell	S	9.45	388	3,667	19,900	20.3 K to 19.9 K (-1.91 %)
Jun 28 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Gift	G	0.00	24,252	0	440,968	465.2 K to 441 K (-5.21 %)
Jun 28 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Gift	G	0.00	348,923	0	348,923	0 to 348.9 K
Jun 28 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Gift	G	0.00	348,923	0	1,128	350.1 K to 1.1 K (-99.68 %)
May 10 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Sell	J	0.00	156,097	0	43,903	200 K to 43.9 K (-78.05 %)
May 10 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Gift	G	0.00	39,292	0	465,220	504.5 K to 465.2 K (-7.79 %)
May 10 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Buy	J	0.00	156,097	0	157,225	1.1 K to 157.2 K (+13,838.39 %)
Jun 16 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Sell	J	0.00	10,655	0	0	10.7 K to 0 (-100.00 %)
Jun 16 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Sell	J	0.00	182,171	0	63,511	245.7 K to 63.5 K (-74.15 %)
Jun 16 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Buy	J	0.00	10,655	0	350,051	339.4 K to 350.1 K (+3.14 %)
Jun 16 2005	REGN	REGENERON PHARMACE ...	VAGELOS P ROY	Director	Buy	J	0.00	182,171	0	339,396	157.2 K to 339.4 K (+115.87 %)
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Option Exercise	M	6.00	5,000	30,000	0
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Option Exercise	M	6.00	16,354	98,124	5,000
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Sell	S	6.29	5,000	31,450	17,975	23 K to 18 K (-21.76 %)
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Buy	M	6.00	5,000	30,000	22,975	18 K to 23 K (+27.82 %)
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Sell	S	6.29	16,354	102,867	17,975	34.3 K to 18 K (-47.64 %)
Mar 01 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Buy	M	6.00	16,354	98,124	34,329	18 K to 34.3 K (+90.98 %)
Feb 16 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	5,000	30,000	0
Feb 16 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.02	5,000	35,100	0	5 K to 0 (-100.00 %)
Feb 16 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	5,000	30,000	5,000	0 to 5 K
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.25	474	2,963	0
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.25	306	1,913	474
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.25	210	1,313	780
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.25	4,010	25,063	990
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.00	980	5,880	0
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.00	700	4,200	980
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.00	600	3,600	1,680
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.00	2,094	12,564	2,280
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Option Exercise	M	6.00	626	3,756	4,374
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.41	980	6,282	590	1.6 K to 590 (-62.42 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.00	980	5,880	1,570	590 to 1.6 K (+166.10 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.42	700	4,494	590	1.3 K to 590 (-54.26 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.00	700	4,200	1,290	590 to 1.3 K (+118.64 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.43	600	3,858	590	1.2 K to 590 (-50.42 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.00	600	3,600	1,190	590 to 1.2 K (+101.69 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.44	2,094	13,485	590	2.7 K to 590 (-78.02 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.00	2,094	12,564	2,684	590 to 2.7 K (+354.92 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.45	626	4,038	590	1.2 K to 590 (-51.48 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.00	626	3,756	1,216	590 to 1.2 K (+106.10 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.45	474	3,057	590	1.1 K to 590 (-44.55 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.25	474	2,963	1,064	590 to 1.1 K (+80.34 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.46	306	1,977	590	896 to 590 (-34.15 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.25	306	1,913	896	590 to 896 (+51.86 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.47	210	1,359	590	800 to 590 (-26.25 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.25	210	1,313	800	590 to 800 (+35.59 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Sell	S	6.65	4,010	26,667	590	4.6 K to 590 (-87.17 %)
Feb 23 2005	REGN	REGENERON PHARMACE ...	BAKER CHARLES A	Director	Buy	M	6.25	4,010	25,063	4,600	590 to 4.6 K (+679.66 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Option Exercise	M	6.00	11,100	66,600	0
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Option Exercise	M	6.00	11,900	71,400	11,100
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Option Exercise	M	6.00	20,000	120,000	23,000
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Sell	S	7.00	11,100	77,700	5,258	16.4 K to 5.3 K (-67.86 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Buy	M	6.00	11,100	66,600	16,358	5.3 K to 16.4 K (+211.11 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Sell	S	7.01	11,900	83,360	5,258	17.2 K to 5.3 K (-69.36 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Buy	M	6.00	11,900	71,400	17,158	5.3 K to 17.2 K (+226.32 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Sell	S	7.01	20,000	140,200	5,258	25.3 K to 5.3 K (-79.18 %)
Feb 14 2005	REGN	REGENERON PHARMACE ...	BROWN MICHAEL S	Director	Buy	M	6.00	20,000	120,000	25,258	5.3 K to 25.3 K (+380.37 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	7,500	45,000	5,000
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	2,500	15,000	12,500
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	5,000	30,000	15,000
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.32	7,500	54,900	0	7.5 K to 0 (-100.00 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	7,500	45,000	7,500	0 to 7.5 K
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.40	2,500	18,505	0	2.5 K to 0 (-100.00 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	2,500	15,000	2,500	0 to 2.5 K
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.45	5,000	37,250	0	5 K to 0 (-100.00 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	5,000	30,000	5,000	0 to 5 K
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Option Exercise	M	6.25	5,000	31,250	0
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Option Exercise	M	6.00	18,646	111,876	21,354
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Sell	S	7.50	18,646	139,845	17,975	36.6 K to 18 K (-50.92 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Buy	M	6.00	18,646	111,876	36,621	18 K to 36.6 K (+103.73 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Sell	S	7.50	5,000	37,500	17,975	23 K to 18 K (-21.76 %)
Feb 09 2005	REGN	REGENERON PHARMACE ...	GILMAN ALFRED G	Director	Buy	M	6.25	5,000	31,250	22,975	18 K to 23 K (+27.82 %)
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	73	438	20,000
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	14,927	89,562	20,073
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.05	73	515	0	73 to 0 (-100.00 %)
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	73	438	73	0 to 73
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.00	14,927	104,489	0	14.9 K to 0 (-100.00 %)
Feb 01 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	14,927	89,562	14,927	0 to 14.9 K
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	12,500	75,000	35,000
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	2,500	15,000	47,500
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.10	12,500	88,750	0	12.5 K to 0 (-100.00 %)
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	12,500	75,000	12,500	0 to 12.5 K
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.15	2,500	17,875	0	2.5 K to 0 (-100.00 %)
Jan 25 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	2,500	15,000	2,500	0 to 2.5 K
Jan 20 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Option Exercise	M	6.00	15,000	90,000	50,000
Jan 20 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Sell	S	7.67	15,000	115,110	0	15 K to 0 (-100.00 %)
Jan 20 2005	REGN	REGENERON PHARMACE ...	GOLDSTEIN JOSEPH L	Director	Buy	M	6.00	15,000	90,000	15,000	0 to 15 K
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	D	50.38	263,000	13,249,940	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	D	25.43	70,000	1,780,100	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	D	25.43	333,000	8,468,190	70,000
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	D	19.43	194,854	3,786,013	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	A	8.50	3,430	29,155	133,332
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	A	8.50	129,902	1,104,167	129,902
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	A	8.50	222,000	1,887,000	356,332
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	A	8.50	46,666	396,661	134,332
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	A	8.50	87,666	745,161	87,666
Jan 07 2005	REGN	REGENERON PHARMACE ...	YANCOPOULOS GEORGE	EVP, CSO, & Pres Re ...	Option Exercise	D	19.43	5,146	99,987	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	D	37.78	37,354	1,411,234	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	D	28.01	50,000	1,400,500	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	A	8.50	3,431	29,164	3,431
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	A	8.50	25,000	212,500	25,000
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	A	8.50	12,451	105,834	13,333
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	A	8.50	882	7,497	882
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	D	37.78	2,646	99,966	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	GOLDBERG MURRAY A	SVP Fin & Admin, CF ...	Option Exercise	D	19.43	5,147	100,006	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	D	37.78	45,200	1,707,656	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	D	28.01	100,000	2,801,000	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	D	19.43	94,851	1,842,955	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	A	8.50	63,234	537,489	66,666
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	A	8.50	3,432	29,172	3,432
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	A	8.50	50,000	425,000	50,000
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	A	8.50	15,066	128,061	16,666
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	A	8.50	1,600	13,600	1,600
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	D	37.78	4,800	181,344	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	STAHL NEIL	SVP, PreclinDevel & ...	Option Exercise	D	19.43	5,149	100,045	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	D	37.78	25,784	974,120	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	D	28.01	30,000	840,300	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	D	19.43	44,853	871,494	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	A	8.50	29,902	254,167	33,333
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	A	8.50	3,431	29,164	3,431
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	A	8.50	15,000	127,500	15,000
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	A	8.50	8,594	73,049	9,999
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	A	8.50	1,405	11,943	1,405
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	D	37.78	4,216	159,280	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	RUPP RANDALL	SVP, Manuf & Proce ...	Option Exercise	D	19.43	5,147	100,006	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	D	37.78	13,650	515,697	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	D	28.01	20,000	560,200	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	D	19.43	19,853	385,744	0
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	A	8.50	858	7,293	14,093
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	A	8.50	13,235	112,498	13,235
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	A	8.50	10,000	85,000	10,000
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	A	8.50	529	4,497	5,079
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	A	8.50	4,550	38,675	4,550
Jan 07 2005	REGN	REGENERON PHARMACE ...	ROBERTS WILLIAM	VP, Regulatory Deve ...	Option Exercise	D	37.78	6,350	239,903	0

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