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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
Mar 31 2006	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Grant	A	63.29	600	37,974	1,600	1,000 to 1.6 K (+60.00 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	44.13	3,240	142,965	0
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	50.63	2,500	126,575	0
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	51.72	5,000	258,600	2,500
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	57.32	2,500	143,300	3,300
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	64.57	3,240	209,203	1,979	5.2 K to 2 K (-62.08 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	44.13	3,240	142,965	5,219	2 K to 5.2 K (+163.72 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	64.57	2,500	161,422	1,979	4.5 K to 2 K (-55.82 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	50.63	2,500	126,575	4,479	2 K to 4.5 K (+126.33 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	64.57	5,000	322,844	1,979	7 K to 2 K (-71.64 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	51.72	5,000	258,600	6,979	2 K to 7 K (+252.65 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	64.57	2,500	161,422	1,979	4.5 K to 2 K (-55.82 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	57.32	2,500	143,300	4,479	2 K to 4.5 K (+126.33 %)
Mar 06 2006	SIAL	SIGMA ALDRICH CORP	WICKS FRANK	President, SAFC	Gift	G	64.69	500	32,345	13,000	13.5 K to 13 K (-3.70 %)
Mar 06 2006	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Director	Gift	G	64.47	2,400	154,728	37,965	40.4 K to 38 K (-5.95 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Option Exercise	M	26.63	3,000	79,875	2,100
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Sell	M	64.54	3,000	193,605	2,896	5.9 K to 2.9 K (-50.88 %)
Mar 02 2006	SIAL	SIGMA ALDRICH CORP	METEER JAMES W	VP, Quality	Buy	M	26.63	3,000	79,875	5,896	2.9 K to 5.9 K (+103.59 %)
Feb 27 2006	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, CEO	Gift	G	64.66	700	45,259	35,255	36 K to 35.3 K (-1.95 %)
Mar 01 2006	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	President, Research ...	Sell	S	64.67	750	48,503	5,742	6.5 K to 5.7 K (-11.55 %)
Mar 01 2006	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	President, Research ...	Option Exercise	M	36.00	5,000	180,000	0
Mar 01 2006	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	President, Research ...	Buy	M	36.00	5,000	180,000	6,492	1.5 K to 6.5 K (+335.12 %)
Mar 01 2006	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	President, Research ...	Sell	M	64.91	2,773	179,995	1,492	4.3 K to 1.5 K (-65.02 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Option Exercise	M	39.75	15,000	596,250	0
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Sell	M	64.60	15,000	968,942	6,514	21.5 K to 6.5 K (-69.72 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	HUMMEL LARRY M		Buy	M	39.75	15,000	596,250	21,514	6.5 K to 21.5 K (+230.27 %)
Feb 23 2006	SIAL	SIGMA ALDRICH CORP	WICKS FRANK	President, SAFC	Sell	S	64.80	833	53,978	13,500	14.3 K to 13.5 K (-5.81 %)
Feb 24 2006	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, CEO	Option Exercise	M	36.00	8,250	297,000	11,750
Feb 24 2006	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, CEO	Sell	M	64.89	4,576	296,937	35,955	40.5 K to 36 K (-11.29 %)
Feb 24 2006	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, CEO	Buy	M	36.00	8,250	297,000	40,531	32.3 K to 40.5 K (+25.56 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Director	Sell	S	65.10	25,900	1,685,999	40,365	66.3 K to 40.4 K (-39.09 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Option Exercise	M	25.50	1,000	25,500	0
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Sell	M	65.00	1,000	65,000	4,250	5.3 K to 4.3 K (-19.05 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Buy	M	25.50	1,000	25,500	5,250	4.3 K to 5.3 K (+23.53 %)
Feb 22 2006	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, CEO	Gift	G	64.76	370	23,961	32,281	31.9 K to 32.3 K (+1.16 %)
Jan 03 2006	SIAL	SIGMA ALDRICH CORP	FEDOROFF NINA	Director	Option Exercise	A	63.29	600	37,974	600
Nov 14 2005	SIAL	SIGMA ALDRICH CORP	Walton Steve	VP, Safety & Compli ...	Buy	P	65.98	300	19,794	300	0 to 300
Nov 14 2005	SIAL	SIGMA ALDRICH CORP	Zihlmann Josef		Option Exercise	M	36.50	2,000	73,000	4,000
Nov 14 2005	SIAL	SIGMA ALDRICH CORP	Zihlmann Josef		Sell	M	66.50	1,500	99,750	2,000	3.5 K to 2 K (-42.86 %)
Nov 14 2005	SIAL	SIGMA ALDRICH CORP	Zihlmann Josef		Buy	M	36.50	2,000	73,000	3,500	1.5 K to 3.5 K (+133.33 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Bouche Robert A		Option Exercise	M	26.88	1,300	34,938	0
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Bouche Robert A		Sell	M	64.82	1,300	84,270	0	1.3 K to 0 (-100.00 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Bouche Robert A		Buy	M	26.88	1,300	34,938	1,300	0 to 1.3 K
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	Smoller David Adam		Option Exercise	M	57.12	1,000	57,120	3,000
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	Smoller David Adam		Buy	M	57.12	1,000	57,120	1,125	125 to 1.1 K (+800.00 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Option Exercise	M	26.88	1,300	34,938	0
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Sell	M	64.54	1,300	83,902	1,200	2.5 K to 1.2 K (-52.00 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Buy	M	26.88	1,300	34,938	2,500	1.2 K to 2.5 K (+108.33 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Option Exercise	M	26.88	1,300	34,938	0
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Sell	M	64.54	1,300	83,902	1,200	2.5 K to 1.2 K (-52.00 %)
Nov 10 2005	SIAL	SIGMA ALDRICH CORP	Green Eric Mark		Buy	M	26.88	1,300	34,938	2,500	1.2 K to 2.5 K (+108.33 %)
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Option Exercise	M	50.63	965	48,858	1,985
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Buy	M	50.63	965	48,858	965	0 to 965
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Sell	M	64.45	758	48,853	0	758 to 0 (-100.00 %)
Nov 09 2005	SIAL	SIGMA ALDRICH CORP	NAGARKATTI JAI	President, COO	Gift	G	64.60	500	32,300	32,651	33.2 K to 32.7 K (-1.51 %)
Nov 04 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	I	64.93	1,605	104,213	9,450	11.1 K to 9.5 K (-14.52 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Option Exercise	M	57.32	2,500	143,300	5,000
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Option Exercise	M	36.50	500	18,250	2,700
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Option Exercise	M	50.63	6,000	303,780	100
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Option Exercise	M	51.72	5,000	258,600	2,500
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	M	65.10	2,500	162,740	9,450	12 K to 9.5 K (-20.92 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Buy	M	57.32	2,500	143,300	11,950	9.5 K to 12 K (+26.46 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	M	65.30	500	32,650	9,450	10 K to 9.5 K (-5.03 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Buy	M	36.50	500	18,250	9,950	9.5 K to 10 K (+5.29 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	M	65.24	6,000	391,440	9,450	15.5 K to 9.5 K (-38.83 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Buy	M	50.63	6,000	303,780	15,450	9.5 K to 15.5 K (+63.49 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	M	65.23	5,000	326,150	9,450	14.5 K to 9.5 K (-34.60 %)
Nov 03 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Buy	M	51.72	5,000	258,600	14,450	9.5 K to 14.5 K (+52.91 %)
Nov 07 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Option Exercise	M	30.75	4,800	147,600	9,630
Nov 07 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Buy	M	30.75	4,800	147,600	4,800	0 to 4.8 K
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY		Sell	S	65.23	4,200	273,966	9,450	13.7 K to 9.5 K (-30.77 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Option Exercise	M	30.75	3,750	115,313	0
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Option Exercise	M	36.88	5,000	184,375	0
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Option Exercise	M	26.88	5,000	134,375	6,000
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Option Exercise	M	36.50	13,400	489,100	4,600
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Sell	M	63.63	3,750	238,612	0	3.8 K to 0 (-100.00 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Buy	M	30.75	3,750	115,313	3,750	0 to 3.8 K
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Sell	M	63.63	5,000	318,149	0	5 K to 0 (-100.00 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Buy	M	36.88	5,000	184,375	5,000	0 to 5 K
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Sell	M	63.63	5,000	318,149	0	5 K to 0 (-100.00 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Buy	M	26.88	5,000	134,375	5,000	0 to 5 K
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Sell	M	63.63	13,400	852,639	0	13.4 K to 0 (-100.00 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Buy	M	36.50	13,400	489,100	13,400	0 to 13.4 K
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Option Exercise	M	42.15	485	20,443	0
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Option Exercise	M	36.50	9	329	0
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Sell	M	63.62	485	30,856	758	1.2 K to 758 (-39.02 %)
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Buy	M	42.15	485	20,443	1,243	758 to 1.2 K (+63.98 %)
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Sell	M	63.62	9	573	758	767 to 758 (-1.17 %)
Nov 02 2005	SIAL	SIGMA ALDRICH CORP	Feldker David P		Buy	M	36.50	9	329	767	758 to 767 (+1.19 %)
Nov 01 2005	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President Research ...	Option Exercise	M	36.50	10,000	365,000	10,000
Nov 01 2005	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President Research ...	Sell	M	63.57	10,000	635,700	14,391	24.4 K to 14.4 K (-41.00 %)
Nov 01 2005	SIAL	SIGMA ALDRICH CORP	JULIEN DAVID	President Research ...	Buy	M	36.50	10,000	365,000	24,391	14.4 K to 24.4 K (+69.49 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Option Exercise	M	36.00	4,000	144,000	0
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Option Exercise	M	26.88	4,000	107,500	6,000
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	M	63.55	4,000	254,182	8,760	12.8 K to 8.8 K (-31.35 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Buy	M	36.00	4,000	144,000	12,760	8.8 K to 12.8 K (+45.66 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Sell	M	63.55	4,000	254,182	8,760	12.8 K to 8.8 K (-31.35 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	VUILLEUMYER HERBERT		Buy	M	26.88	4,000	107,500	12,760	8.8 K to 12.8 K (+45.66 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	MILLER KAREN J	Controller	Sell	S	62.51	1,820	113,768	0	1.8 K to 0 (-100.00 %)
Oct 31 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	S	63.10	23,500	1,482,906	66,265	89.8 K to 66.3 K (-26.18 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Option Exercise	M	25.50	1,000	25,500	1,000
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Sell	M	61.75	600	37,050	5,430	6 K to 5.4 K (-9.95 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Sell	M	61.74	200	12,348	6,030	6.2 K to 6 K (-3.21 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Sell	M	61.73	200	12,346	6,230	6.4 K to 6.2 K (-3.11 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Buy	M	25.50	600	15,300	6,430	5.8 K to 6.4 K (+10.29 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Buy	M	25.50	200	5,100	5,830	5.6 K to 5.8 K (+3.55 %)
Aug 15 2005	SIAL	SIGMA ALDRICH CORP	KELLEY RODNEY	VP, Safety and Comp ...	Buy	M	25.50	200	5,100	5,630	5.4 K to 5.6 K (+3.68 %)
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	50.63	2,500	126,575	2,500
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	61.60	2,500	154,012	1,979	4.5 K to 2 K (-55.82 %)
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	50.63	2,500	126,575	4,479	2 K to 4.5 K (+126.33 %)
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	VP Sales	Option Exercise	M	26.88	940	25,263	735
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	VP Sales	Buy	M	26.88	940	25,263	4,265	3.3 K to 4.3 K (+28.27 %)
Aug 12 2005	SIAL	SIGMA ALDRICH CORP	COTTIER GILLES	VP Sales	Sell	M	62.29	405	25,227	3,325	3.7 K to 3.3 K (-10.86 %)
Jul 11 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Option Exercise	A	57.65	50,000	2,882,500	50,000
Aug 04 2005	SIAL	SIGMA ALDRICH CORP	FISH PATRICIA K	VP, Human Resources	Option Exercise	M	57.32	2,500	143,300	5,000
Aug 04 2005	SIAL	SIGMA ALDRICH CORP	FISH PATRICIA K	VP, Human Resources	Option Exercise	M	56.10	5,000	280,500	20,000
Aug 04 2005	SIAL	SIGMA ALDRICH CORP	FISH PATRICIA K	VP, Human Resources	Sell	M	64.00	7,500	480,000	1,167	8.7 K to 1.2 K (-86.54 %)
Aug 04 2005	SIAL	SIGMA ALDRICH CORP	FISH PATRICIA K	VP, Human Resources	Buy	M	57.32	2,500	143,300	8,667	6.2 K to 8.7 K (+40.54 %)
Aug 04 2005	SIAL	SIGMA ALDRICH CORP	FISH PATRICIA K	VP, Human Resources	Buy	M	56.10	5,000	280,500	6,167	1.2 K to 6.2 K (+428.45 %)
Aug 03 2005	SIAL	SIGMA ALDRICH CORP	HOGAN MICHAEL R	CAO & CFO	Gift	G	63.81	180	11,486	33,735	33.9 K to 33.7 K (-0.53 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Option Exercise	M	36.50	40,000	1,460,000	7,300
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	M	63.76	2,500	159,393	89,765	92.3 K to 89.8 K (-2.71 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	M	63.75	12,500	796,875	92,265	104.8 K to 92.3 K (-11.93 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	M	63.77	5,000	318,855	104,765	109.8 K to 104.8 K (-4.56 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	M	63.75	2,500	159,382	109,765	112.3 K to 109.8 K (-2.23 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Sell	M	63.75	17,500	1,115,625	112,265	129.8 K to 112.3 K (-13.49 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	HARVEY DAVID R	Chairman & CEO	Buy	M	36.50	40,000	1,460,000	129,765	89.8 K to 129.8 K (+44.56 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Option Exercise	M	25.50	1,000	25,500	1,000
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Sell	M	25.50	1,000	25,500	4,250	5.3 K to 4.3 K (-19.05 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	PORWOLL JOE		Buy	M	25.50	1,000	25,500	5,250	4.3 K to 5.3 K (+23.53 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Option Exercise	M	44.13	2,250	99,281	4,890
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Sell	M	44.13	2,250	99,281	1,979	4.2 K to 2 K (-53.20 %)
Aug 02 2005	SIAL	SIGMA ALDRICH CORP	GLOVER SCOTT		Buy	M	44.13	2,250	99,281	4,229	2 K to 4.2 K (+113.69 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.62	3,300	213,246	13,650	17 K to 13.7 K (-19.47 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.75	200	12,950	16,950	17.2 K to 17 K (-1.17 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.76	1,100	71,236	17,150	18.3 K to 17.2 K (-6.03 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.85	200	12,970	18,250	18.5 K to 18.3 K (-1.08 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.70	1,000	64,700	18,450	19.5 K to 18.5 K (-5.14 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.76	3,900	252,564	19,450	23.4 K to 19.5 K (-16.70 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.79	10,000	647,900	23,350	33.4 K to 23.4 K (-29.99 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Buy	M	36.50	13,900	507,350	33,350	19.5 K to 33.4 K (+71.47 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.75	1,800	116,550	19,450	21.3 K to 19.5 K (-8.47 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Buy	M	26.88	1,800	48,375	21,250	19.5 K to 21.3 K (+9.25 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.85	6,000	389,100	19,450	25.5 K to 19.5 K (-23.58 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Buy	M	36.88	6,000	221,250	25,450	19.5 K to 25.5 K (+30.85 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.76	1,500	97,140	19,450	21 K to 19.5 K (-7.16 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.81	2,500	162,025	20,950	23.5 K to 21 K (-10.66 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Buy	M	36.88	4,000	147,500	23,450	19.5 K to 23.5 K (+20.57 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Sell	M	64.85	4,950	321,008	19,450	24.4 K to 19.5 K (-20.29 %)
Aug 01 2005	SIAL	SIGMA ALDRICH CORP	BLAZEVICH LARRY	VP. Information Sys ...	Buy	M	26.88	4,950	133,031	24,400	19.5 K to 24.4 K (+25.45 %)

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