W.R. Grace & Company (NY: GRA )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2006	10.13	10.41	9.930	10.15	1,608,900	+0.02(+0.20%)
Feb 27, 2006	10.03	10.21	9.940	10.13	880,900	+0.10(+1.00%)
Feb 24, 2006	9.900	10.07	9.890	10.03	786,600	+0.03(+0.30%)
Feb 23, 2006	9.250	10.40	9.210	10.00	2,237,200	+0.75(+8.11%)
Feb 22, 2006	9.270	9.280	9.150	9.250	680,100	-0.03(-0.32%)
Feb 21, 2006	9.080	9.320	9.060	9.280	899,700	+0.13(+1.42%)
Feb 17, 2006	9.000	9.470	8.700	9.150	800,000	-0.27(-2.87%)
Feb 16, 2006	9.220	9.470	9.200	9.420	1,127,900	+0.25(+2.73%)
Feb 15, 2006	9.000	9.520	8.670	9.170	7,422,300	-0.77(-7.75%)
Feb 14, 2006	10.51	10.83	9.610	9.940	3,291,000	-0.57(-5.42%)
Feb 13, 2006	10.56	10.96	10.46	10.51	1,194,000	-0.05(-0.47%)
Feb 10, 2006	10.50	10.73	10.22	10.56	1,678,300	-0.01(-0.09%)
Feb 09, 2006	11.02	11.43	10.57	10.57	2,269,500	-0.45(-4.08%)
Feb 08, 2006	12.08	12.33	10.85	11.02	3,523,700	-0.66(-5.65%)
Feb 07, 2006	12.69	12.69	11.10	11.68	4,444,300	-1.09(-8.54%)
Feb 06, 2006	13.50	13.95	12.72	12.77	2,016,800	-0.73(-5.41%)
Feb 03, 2006	12.50	13.61	12.50	13.50	2,086,800	+0.97(+7.74%)
Feb 02, 2006	12.80	12.80	12.31	12.53	1,189,200	-0.17(-1.34%)
Feb 01, 2006	12.52	13.52	12.11	12.70	3,958,000	+0.23(+1.84%)
Jan 31, 2006	11.30	12.54	11.28	12.47	2,592,800	+1.26(+11.24%)
Jan 30, 2006	11.75	11.91	10.77	11.21	3,413,600	+0.37(+3.41%)
Jan 27, 2006	11.46	11.47	10.59	10.84	1,779,100	-0.62(-5.41%)
Jan 26, 2006	11.29	11.55	11.20	11.46	850,800	+0.31(+2.78%)
Jan 25, 2006	10.87	11.43	10.72	11.15	1,883,200	+0.45(+4.21%)
Jan 24, 2006	10.21	10.80	10.20	10.70	2,573,100	+0.45(+4.39%)
Jan 23, 2006	10.25	10.32	10.09	10.25	591,100	+0.05(+0.49%)
Jan 20, 2006	10.58	10.58	10.20	10.20	512,100	-0.28(-2.67%)
Jan 19, 2006	10.58	10.75	10.47	10.48	1,109,500	-0.09(-0.85%)
Jan 18, 2006	10.80	10.80	10.52	10.57	621,200	-0.33(-3.03%)
Jan 17, 2006	10.40	11.06	10.28	10.90	1,252,400	+0.40(+3.81%)
Jan 13, 2006	10.09	10.55	10.07	10.50	580,700	+0.47(+4.69%)
Jan 12, 2006	10.16	10.26	10.00	10.03	184,100	-0.19(-1.86%)
Jan 11, 2006	10.23	10.39	9.850	10.22	408,600	-0.01(-0.10%)
Jan 10, 2006	10.09	10.39	9.960	10.23	449,000	+0.15(+1.49%)
Jan 09, 2006	10.39	10.48	10.08	10.08	694,400	-0.19(-1.85%)
Jan 06, 2006	10.19	10.39	10.04	10.27	641,100	+0.15(+1.48%)
Jan 05, 2006	9.920	10.18	9.820	10.12	420,100	+0.10(+1.00%)
Jan 04, 2006	10.01	10.03	9.650	10.02	642,900	+0.02(+0.20%)
Jan 03, 2006	9.400	10.09	9.350	10.00	1,081,900	+0.60(+6.38%)
Dec 30, 2005	9.350	9.500	9.210	9.400	403,700	-0.08(-0.84%)
Dec 29, 2005	9.350	9.580	9.350	9.480	269,500	+0.08(+0.85%)
Dec 28, 2005	9.400	9.430	9.310	9.400	435,800	+0.00(+0.00%)
Dec 27, 2005	9.600	9.660	9.200	9.400	415,900	-0.21(-2.19%)
Dec 23, 2005	9.640	9.850	9.530	9.610	210,300	+0.10(+1.05%)
Dec 22, 2005	9.470	9.650	9.390	9.510	416,800	+0.14(+1.49%)
Dec 21, 2005	9.110	9.610	9.110	9.370	455,700	+0.21(+2.29%)
Dec 20, 2005	9.610	9.660	9.060	9.160	786,700	-0.40(-4.18%)
Dec 19, 2005	9.800	9.800	9.530	9.560	468,500	-0.24(-2.45%)
Dec 16, 2005	9.570	9.880	9.500	9.800	904,100	+0.27(+2.83%)
Dec 15, 2005	9.700	9.700	9.350	9.530	595,800	-0.10(-1.04%)
Dec 14, 2005	9.600	9.840	9.510	9.630	624,000	+0.16(+1.69%)
Dec 13, 2005	10.48	10.53	9.320	9.470	1,334,100	-1.00(-9.55%)
Dec 12, 2005	9.810	10.53	9.800	10.47	1,570,300	+0.71(+7.27%)
Dec 09, 2005	9.650	9.850	9.500	9.760	732,000	+0.31(+3.28%)
Dec 08, 2005	8.960	9.530	8.960	9.450	987,100	+0.49(+5.47%)
Dec 07, 2005	8.930	9.240	8.890	8.960	916,500	+0.07(+0.79%)
Dec 06, 2005	8.640	8.990	8.540	8.890	320,100	+0.27(+3.13%)
Dec 05, 2005	8.770	8.780	8.490	8.620	155,900	-0.14(-1.60%)
Dec 02, 2005	8.790	8.840	8.500	8.760	285,600	-0.13(-1.46%)