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

Overview of all insider trading transactions in REPLIGEN CORP. Get notifications about new insider transactions in REPLIGEN CORP for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
May 20 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.01	6,000	54,030	0	6 K to 0 (-100.00 %)
May 20 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.95	10,000	89,524	48,380	58.4 K to 48.4 K (-17.13 %)
May 20 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.95	4,000	35,801	58,380	62.4 K to 58.4 K (-6.41 %)
May 16 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.00	1,000	9,000	62,380	63.4 K to 62.4 K (-1.58 %)
May 16 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.99	264	2,374	63,380	63.6 K to 63.4 K (-0.41 %)
May 16 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.99	697	6,269	63,644	64.3 K to 63.6 K (-1.08 %)
May 16 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Grant	A	0.00	5,342	0	64,341	59 K to 64.3 K (+9.05 %)
May 16 2013	RGEN	REPLIGEN CORP	GRIFFITH MICHAEL A	Director	Grant	A	0.00	5,342	0	7,342	2 K to 7.3 K (+267.10 %)
May 16 2013	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Grant	A	0.00	5,342	0	21,380	16 K to 21.4 K (+33.31 %)
May 16 2013	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Grant	A	0.00	5,342	0	37,380	32 K to 37.4 K (+16.67 %)
May 16 2013	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Grant	A	0.00	5,342	0	31,380	26 K to 31.4 K (+20.52 %)
May 16 2013	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Grant	A	0.00	5,342	0	32,880	27.5 K to 32.9 K (+19.40 %)
May 16 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Sell	S	8.85	1,514	13,399	537,793	539.3 K to 537.8 K (-0.28 %)
May 16 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Gift	G	0.00	10,000	0	539,307	549.3 K to 539.3 K (-1.82 %)
May 16 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Sell	S	8.98	38,486	345,450	549,307	587.8 K to 549.3 K (-6.55 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	M	3.10	14,884	46,140	95,000
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	M	3.10	116	360	109,884
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	M	3.38	15,000	50,700	110,000
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	M	1.91	15,000	28,650	125,000
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	M	7.56	39,000	294,840	140,000
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.96	14,884	133,423	58,999	73.9 K to 59 K (-20.15 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Buy	M	3.10	14,884	46,140	73,883	59 K to 73.9 K (+25.23 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.07	1,611	14,612	58,999	60.6 K to 59 K (-2.66 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.05	428	3,873	60,610	61 K to 60.6 K (-0.70 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.95	116	1,038	61,038	61.2 K to 61 K (-0.19 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Buy	M	3.10	116	360	61,154	61 K to 61.2 K (+0.19 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	8.93	15,000	133,967	61,038	76 K to 61 K (-19.73 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Buy	M	3.38	15,000	50,700	76,038	61 K to 76 K (+24.57 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.04	15,000	135,629	61,038	76 K to 61 K (-19.73 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Buy	M	1.91	15,000	28,650	76,038	61 K to 76 K (+24.57 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Sell	S	9.04	39,000	352,634	61,038	100 K to 61 K (-38.99 %)
May 15 2013	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Buy	M	7.56	39,000	294,840	100,038	61 K to 100 K (+63.89 %)
May 08 2013	RGEN	REPLIGEN CORP	Kelly William J	Chief Accounting Of ...	Option Exercise	M	4.82	20,000	96,400	55,000
May 08 2013	RGEN	REPLIGEN CORP	Kelly William J	Chief Accounting Of ...	Sell	S	9.14	20,000	182,734	0	20 K to 0 (-100.00 %)
May 08 2013	RGEN	REPLIGEN CORP	Kelly William J	Chief Accounting Of ...	Buy	M	4.82	20,000	96,400	20,000	0 to 20 K
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Option Exercise	M	3.33	10,000	33,300	142,036
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Option Exercise	M	4.25	12,964	55,097	152,036
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Payment of Exercise	F	8.84	3,767	33,300	22,964	26.7 K to 23 K (-14.09 %)
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Buy	M	3.33	10,000	33,300	26,731	16.7 K to 26.7 K (+59.77 %)
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Payment of Exercise	F	8.84	6,233	55,100	16,731	23 K to 16.7 K (-27.14 %)
May 07 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Buy	M	4.25	12,964	55,097	22,964	10 K to 23 K (+129.64 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	3.33	20,000	66,600	135,000
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	5.87	80,000	469,600	155,000
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	3.05	50,000	152,500	235,000
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	8.93	7,458	66,600	587,793	595.3 K to 587.8 K (-1.25 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	3.33	20,000	66,600	595,251	575.3 K to 595.3 K (+3.48 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	8.93	52,587	469,602	575,251	627.8 K to 575.3 K (-8.38 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	5.87	80,000	469,600	627,838	547.8 K to 627.8 K (+14.60 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	8.93	17,078	152,507	547,838	564.9 K to 547.8 K (-3.02 %)
May 06 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	3.05	50,000	152,500	564,916	514.9 K to 564.9 K (+9.71 %)
Mar 27 2013	RGEN	REPLIGEN CORP	WITT DANIEL P	Senior Vice Preside ...	Option Exercise	M	5.51	10,000	55,100	137,500
Mar 27 2013	RGEN	REPLIGEN CORP	WITT DANIEL P	Senior Vice Preside ...	Payment of Exercise	F	6.89	7,998	55,106	47,709	55.7 K to 47.7 K (-14.36 %)
Mar 27 2013	RGEN	REPLIGEN CORP	WITT DANIEL P	Senior Vice Preside ...	Buy	M	5.51	10,000	55,100	55,707	45.7 K to 55.7 K (+21.88 %)
Mar 27 2013	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	M	5.51	25,000	137,750	140,000
Mar 27 2013	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Payment of Exercise	F	6.89	19,993	137,752	147,128	167.1 K to 147.1 K (-11.96 %)
Mar 27 2013	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Buy	M	5.51	25,000	137,750	167,121	142.1 K to 167.1 K (+17.59 %)
Mar 27 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	5.51	65,000	358,150	285,000
Mar 27 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	6.89	51,982	358,156	514,916	566.9 K to 514.9 K (-9.17 %)
Mar 27 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	5.51	65,000	358,150	566,898	501.9 K to 566.9 K (+12.95 %)
Mar 12 2013	RGEN	REPLIGEN CORP	WITT DANIEL P	Sr. VP, Global Oper ...	Option Exercise	A	6.23	40,000	249,200	147,500
Mar 12 2013	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	A	6.23	40,000	249,200	165,000
Mar 12 2013	RGEN	REPLIGEN CORP	Kelly William J	CAO	Option Exercise	A	6.23	40,000	249,200	75,000
Mar 12 2013	RGEN	REPLIGEN CORP	Lieber Jonathan I	CFO	Option Exercise	A	6.23	40,000	249,200	150,000
Mar 12 2013	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	A	6.23	85,000	529,550	350,000
Mar 12 2013	RGEN	REPLIGEN CORP	Benjamin Howard	VP Business Develop ...	Option Exercise	A	6.23	40,000	249,200	165,000
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	6.09	1,133	6,900	154,121	155.3 K to 154.1 K (-0.73 %)
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	6.00	100	600	155,254	155.4 K to 155.3 K (-0.06 %)
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	5.93	476	2,823	155,354	155.8 K to 155.4 K (-0.31 %)
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	5.92	100	592	155,830	155.9 K to 155.8 K (-0.06 %)
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	5.91	1,138	6,726	155,930	157.1 K to 155.9 K (-0.72 %)
Oct 02 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Sell	S	5.90	2,053	12,113	157,068	159.1 K to 157.1 K (-1.29 %)
Sep 24 2012	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Buy	P	6.08	2,000	12,159	26,038	24 K to 26 K (+8.32 %)
Sep 24 2012	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Buy	P	6.09	3,000	18,265	24,038	21 K to 24 K (+14.26 %)
Sep 24 2012	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Buy	P	6.09	5,000	30,450	21,038	16 K to 21 K (+31.18 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Option Exercise	M	3.33	10,000	33,300	35,000
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Option Exercise	M	4.82	80,000	385,600	45,000
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.63	100	563	0	100 to 0 (-100.00 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.62	107	601	100	207 to 100 (-51.69 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.61	100	561	207	307 to 207 (-32.57 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.60	400	2,240	307	707 to 307 (-56.58 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.59	1,500	8,385	707	2.2 K to 707 (-67.97 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.57	800	4,456	2,207	3 K to 2.2 K (-26.60 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.56	4,803	26,705	3,007	7.8 K to 3 K (-61.50 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.55	9,900	54,945	7,810	17.7 K to 7.8 K (-55.90 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.54	8,000	44,320	17,710	25.7 K to 17.7 K (-31.12 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.53	9,681	53,536	25,710	35.4 K to 25.7 K (-27.35 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.52	10,700	59,064	35,391	46.1 K to 35.4 K (-23.21 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.51	8,500	46,835	46,091	54.6 K to 46.1 K (-15.57 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Sell	S	5.50	40,409	222,250	54,591	95 K to 54.6 K (-42.54 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Buy	M	3.33	10,000	33,300	95,000	85 K to 95 K (+11.76 %)
Sep 04 2012	RGEN	REPLIGEN CORP	Kelly William J	CFO	Buy	M	4.82	80,000	385,600	85,000	5 K to 85 K (+1,600.00 %)
Aug 20 2012	RGEN	REPLIGEN CORP	GRIFFITH MICHAEL A	Director	Buy	P	4.87	200	974	2,000	1.8 K to 2 K (+11.11 %)
Aug 20 2012	RGEN	REPLIGEN CORP	GRIFFITH MICHAEL A	Director	Buy	P	4.88	200	976	1,800	1.6 K to 1.8 K (+12.50 %)
Aug 20 2012	RGEN	REPLIGEN CORP	GRIFFITH MICHAEL A	Director	Buy	P	4.88	1,600	7,808	1,600	0 to 1.6 K
Jun 20 2012	RGEN	REPLIGEN CORP	GRIFFITH MICHAEL A	Director	Option Exercise	A	4.53	24,000	108,720	24,000
Jun 20 2012	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Grant	A	0.00	11,038	0	61,038	50 K to 61 K (+22.08 %)
Jun 20 2012	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Grant	A	0.00	11,038	0	16,038	5 K to 16 K (+220.76 %)
Jun 20 2012	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Grant	A	0.00	11,038	0	32,038	21 K to 32 K (+52.56 %)
Jun 20 2012	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Grant	A	0.00	11,038	0	27,538	16.5 K to 27.5 K (+66.90 %)
Jun 20 2012	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Grant	A	0.00	11,038	0	16,038	5 K to 16 K (+220.76 %)
Mar 28 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	1.83	50,000	91,500	265,000
Mar 28 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	5.37	17,040	91,505	501,898	518.9 K to 501.9 K (-3.28 %)
Mar 28 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	1.83	50,000	91,500	518,938	468.9 K to 518.9 K (+10.66 %)
Mar 28 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	M	1.83	25,000	45,750	125,000
Mar 28 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Payment of Exercise	F	5.37	8,520	45,752	159,121	167.6 K to 159.1 K (-5.08 %)
Mar 28 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Buy	M	1.83	25,000	45,750	167,641	142.6 K to 167.6 K (+17.53 %)
Mar 26 2012	RGEN	REPLIGEN CORP	WITT DANIEL P	Vice President	Option Exercise	M	3.24	10,000	32,400	107,500
Mar 26 2012	RGEN	REPLIGEN CORP	WITT DANIEL P	Vice President	Payment of Exercise	F	4.99	6,493	32,400	45,707	52.2 K to 45.7 K (-12.44 %)
Mar 26 2012	RGEN	REPLIGEN CORP	WITT DANIEL P	Vice President	Buy	M	3.24	10,000	32,400	52,200	42.2 K to 52.2 K (+23.70 %)
Mar 26 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	M	3.24	25,000	81,000	150,000
Mar 26 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Payment of Exercise	F	4.99	16,233	81,003	142,641	158.9 K to 142.6 K (-10.22 %)
Mar 26 2012	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Buy	M	3.24	25,000	81,000	158,874	133.9 K to 158.9 K (+18.67 %)
Mar 19 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	M	3.24	50,000	162,000	315,000
Mar 19 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Payment of Exercise	F	4.87	33,265	162,001	468,938	502.2 K to 468.9 K (-6.62 %)
Mar 19 2012	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Buy	M	3.24	50,000	162,000	502,203	452.2 K to 502.2 K (+11.06 %)
Dec 19 2011	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	A	3.22	15,000	48,300	179,000
Dec 19 2011	RGEN	REPLIGEN CORP	RICH ALEXANDER	Director	Option Exercise	A	3.22	15,000	48,300	105,000
Dec 19 2011	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Option Exercise	A	3.22	15,000	48,300	99,000
Dec 19 2011	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Option Exercise	A	3.22	15,000	48,300	99,000
Dec 19 2011	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Option Exercise	A	3.22	15,000	48,300	149,000
Dec 19 2011	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Option Exercise	A	3.22	15,000	48,300	59,000
Aug 15 2011	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Buy	P	3.49	10,000	34,946	150,500	140.5 K to 150.5 K (+7.12 %)
Aug 12 2011	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Buy	P	3.43	21,000	71,986	105,000	84 K to 105 K (+25.00 %)
Jun 15 2011	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Buy	P	3.65	3,900	14,235	5,000	1.1 K to 5 K (+354.55 %)
Jun 15 2011	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Buy	P	3.54	1,100	3,897	1,100	0 to 1.1 K
Jun 15 2011	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Buy	P	3.56	700	2,490	6,500	5.8 K to 6.5 K (+12.07 %)
Jun 15 2011	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Buy	P	3.53	200	706	5,800	5.6 K to 5.8 K (+3.57 %)
Jun 15 2011	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Buy	P	3.58	3,600	12,888	5,600	2 K to 5.6 K (+180.00 %)
Mar 31 2011	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	D	2.66	50,000	133,000	0
Mar 31 2011	RGEN	REPLIGEN CORP	WITT DANIEL P	Vice President	Option Exercise	D	2.66	10,000	26,600	0
Mar 31 2011	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	M	2.66	5,000	13,300	0
Mar 31 2011	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	D	2.66	20,000	53,200	5,000
Mar 31 2011	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Buy	P	2.66	5,000	13,300	5,000	0 to 5 K
Sep 29 2010	RGEN	REPLIGEN CORP	WITT DANIEL P	Vice President	Option Exercise	A	3.33	25,000	83,250	127,500
Sep 29 2010	RGEN	REPLIGEN CORP	RUSCHE JAMES R	Senior Vice Preside ...	Option Exercise	A	3.33	25,000	83,250	200,000
Sep 29 2010	RGEN	REPLIGEN CORP	Kelly William J	CFO	Option Exercise	A	3.33	25,000	83,250	125,000
Sep 29 2010	RGEN	REPLIGEN CORP	HERLIHY WALTER C	PRESIDENT, CEO	Option Exercise	A	3.33	50,000	166,500	415,000
Sep 28 2010	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Option Exercise	A	3.30	20,000	66,000	44,000
Sep 28 2010	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	A	3.30	20,000	66,000	164,000
Sep 28 2010	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Option Exercise	A	3.30	20,000	66,000	84,000
Sep 28 2010	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Option Exercise	A	3.30	20,000	66,000	134,000
Sep 28 2010	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Option Exercise	A	3.30	20,000	66,000	84,000
Sep 28 2010	RGEN	REPLIGEN CORP	RICH ALEXANDER	Director	Option Exercise	A	3.30	20,000	66,000	100,000
May 13 2010	RGEN	REPLIGEN CORP	Henry Earl Webb	Director	Option Exercise	A	4.96	20,000	99,200	64,000
May 13 2010	RGEN	REPLIGEN CORP	RYAN THOMAS F JR	Director	Option Exercise	A	4.96	20,000	99,200	144,000
May 13 2010	RGEN	REPLIGEN CORP	Goldberg Alfred Lewis	Director	Option Exercise	A	4.96	20,000	99,200	64,000
May 13 2010	RGEN	REPLIGEN CORP	DAWES KAREN A	Director	Option Exercise	A	4.96	20,000	99,200	114,000
Nov 17 2009	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Buy	P	4.98	5,000	24,900	5,000	0 to 5 K
Aug 25 2009	RGEN	REPLIGEN CORP	COOPER GLENN L MD	Director	Option Exercise	A	5.00	24,000	120,000	24,000
Jul 08 2009	RGEN	REPLIGEN CORP	BVF PARTNERS L P/IL	10% Owner	Sell	S	5.50	1,000	5,500	2,765,050	2.8 M to 2.8 M (-0.04 %)

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