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

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

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Dec 02 2003	SIAL	SIGMA ALDRICH CORP	VAN DEN DOOL GERRIT		Buy	M	32.31	500	16,156	2,400	1.9 K to 2.4 K (+26.32 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Sell	I	52.97	472	25,002	2,896	3.4 K to 2.9 K (-14.01 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	P	52.69	660	34,775	1,119	459 to 1.1 K (+143.79 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Sell	S	52.73	1,000	52,730	12,425	13.4 K to 12.4 K (-7.45 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Sell	S	52.74	100	5,274	13,425	13.5 K to 13.4 K (-0.74 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Sell	S	52.72	1,400	73,808	13,525	14.9 K to 13.5 K (-9.38 %)
Nov 07 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Sell	S	52.77	1,300	68,601	14,925	16.2 K to 14.9 K (-8.01 %)
Nov 06 2003	SIAL	SIGMA ALDRICH CORP	MCCOLLUM LEE	Director	Buy	P	52.66	400	21,064	700	300 to 700 (+133.33 %)
Nov 06 2003	SIAL	SIGMA ALDRICH CORP	RICHTER KIRK A	Treasurer	Sell	S	53.01	421	22,317	39,421	39.8 K to 39.4 K (-1.06 %)
Nov 06 2003	SIAL	SIGMA ALDRICH CORP	RICHTER KIRK A	Treasurer	Sell	S	53.05	6,791	360,237	39,842	46.6 K to 39.8 K (-14.56 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Option Exercise	M	36.88	9,825	362,297	40,175
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Option Exercise	M	26.88	40,000	1,075,000	10,000
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Buy	M	36.88	9,825	362,297	148,265	138.4 K to 148.3 K (+7.10 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Sell	M	52.45	6,900	361,905	138,440	145.3 K to 138.4 K (-4.75 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Sell	M	53.02	10,000	530,247	145,340	155.3 K to 145.3 K (-6.44 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Sell	M	52.75	10,000	527,500	155,340	165.3 K to 155.3 K (-6.05 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Sell	M	52.46	10,000	524,597	165,340	175.3 K to 165.3 K (-5.70 %)
Nov 05 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Buy	M	26.88	40,000	1,075,000	175,340	135.3 K to 175.3 K (+29.56 %)
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Option Exercise	M	28.63	2,000	57,250	0
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Option Exercise	M	39.88	10,000	398,750	0
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Sell	M	52.67	2,000	105,340	1,000	3 K to 1,000 (-66.67 %)
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Buy	M	28.63	2,000	57,250	3,000	1,000 to 3 K (+200.00 %)
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Sell	M	52.67	10,000	526,700	1,000	11 K to 1,000 (-90.91 %)
Oct 30 2003	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Buy	M	39.88	10,000	398,750	11,000	1,000 to 11 K (+1,000.00 %)
Aug 08 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Option Exercise	M	26.88	4,000	107,500	4,000
Aug 08 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Sell	M	54.08	4,000	216,320	16,225	20.2 K to 16.2 K (-19.78 %)
Aug 08 2003	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President, Biotechn ...	Buy	M	26.88	4,000	107,500	20,225	16.2 K to 20.2 K (+24.65 %)
Aug 08 2003	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Sell	I	54.51	715	38,975	2,896	3.6 K to 2.9 K (-19.80 %)
Aug 06 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	S	55.53	2,000	111,056	8,760	10.8 K to 8.8 K (-18.59 %)
Aug 06 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	S	55.53	2,000	111,056	8,760	10.8 K to 8.8 K (-18.59 %)
Aug 05 2003	SIAL	SIGMA ALDRICH CORP	RICHTER KIRK A	Treasurer	Option Exercise	M	18.13	4,000	72,500	0
Aug 05 2003	SIAL	SIGMA ALDRICH CORP	RICHTER KIRK A	Treasurer	Buy	M	18.13	4,000	72,500	46,633	42.6 K to 46.6 K (+9.38 %)
Aug 05 2003	SIAL	SIGMA ALDRICH CORP	RICHTER KIRK A	Treasurer	Sell	M	56.14	1,291	72,477	42,633	43.9 K to 42.6 K (-2.94 %)
Aug 05 2003	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, Scientif ...	Gift	G	56.14	400	22,456	33,135	33.5 K to 33.1 K (-1.19 %)
Aug 04 2003	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Option Exercise	M	18.13	2,000	36,250	0
Aug 04 2003	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Buy	M	18.13	2,000	36,250	4,250	2.3 K to 4.3 K (+88.89 %)
Aug 04 2003	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Sell	M	56.28	750	42,210	2,250	3 K to 2.3 K (-25.00 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Option Exercise	M	25.50	2,000	51,000	0
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Buy	M	25.50	2,000	51,000	6,514	4.5 K to 6.5 K (+44.31 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Sell	M	55.80	913	50,945	4,514	5.4 K to 4.5 K (-16.82 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety & Compli ...	Sell	I	55.80	1,614	90,061	3,380	5 K to 3.4 K (-32.32 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Option Exercise	M	28.63	1,000	28,625	0
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Buy	M	28.63	1,000	28,625	15,480	14.5 K to 15.5 K (+6.91 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Sell	M	54.95	520	28,574	14,480	15 K to 14.5 K (-3.47 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Option Exercise	M	28.63	1,000	28,625	0
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Buy	M	28.63	1,000	28,625	15,480	14.5 K to 15.5 K (+6.91 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	SANDWEISS JEROME	Director	Sell	M	54.95	520	28,574	14,480	15 K to 14.5 K (-3.47 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Option Exercise	M	26.63	2,000	53,250	9,100
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Buy	M	26.63	2,000	53,250	2,896	896 to 2.9 K (+223.21 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Sell	M	55.80	954	53,233	896	1.9 K to 896 (-51.57 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Option Exercise	M	18.13	2,000	36,250	3,000
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	M	54.56	2,000	109,120	10,760	12.8 K to 10.8 K (-15.67 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Buy	M	18.13	2,000	36,250	12,760	10.8 K to 12.8 K (+18.59 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	S	54.56	1,000	54,560	10,760	11.8 K to 10.8 K (-8.50 %)
Jul 29 2003	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman, CEO & Pre ...	Sell	S	55.53	33,350	1,851,835	135,340	168.7 K to 135.3 K (-19.77 %)

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