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

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
May 31, 2006	14.18	14.45	14.10	14.20	684,100	+0.04(+0.28%)
May 30, 2006	14.78	14.78	14.03	14.16	831,500	-0.62(-4.19%)
May 26, 2006	14.32	14.88	14.11	14.78	1,387,500	+0.74(+5.27%)
May 25, 2006	13.72	14.14	13.72	14.04	482,800	+0.42(+3.08%)
May 24, 2006	14.35	14.35	13.35	13.62	1,545,600	-0.83(-5.74%)
May 23, 2006	14.45	14.80	14.29	14.45	866,300	+0.32(+2.26%)
May 22, 2006	14.96	14.96	13.91	14.13	1,494,300	-0.88(-5.86%)
May 19, 2006	14.94	15.15	14.70	15.01	988,700	+0.07(+0.47%)
May 18, 2006	15.20	15.44	14.89	14.94	738,500	-0.30(-1.97%)
May 17, 2006	15.88	15.88	14.97	15.24	1,652,300	-0.67(-4.21%)
May 16, 2006	16.25	16.34	15.57	15.91	1,339,200	-0.31(-1.91%)
May 15, 2006	16.87	17.02	15.74	16.22	1,668,600	-0.94(-5.48%)
May 12, 2006	17.55	17.59	16.94	17.16	1,751,500	-0.33(-1.89%)
May 11, 2006	17.23	18.20	17.23	17.49	1,901,500	+0.23(+1.33%)
May 10, 2006	16.80	17.72	16.75	17.26	1,831,100	+0.23(+1.35%)
May 09, 2006	16.85	17.15	16.68	17.03	692,100	+0.18(+1.07%)
May 08, 2006	16.75	17.45	16.69	16.85	848,200	+0.13(+0.78%)
May 05, 2006	16.81	16.97	16.56	16.72	379,600	-0.06(-0.36%)
May 04, 2006	16.56	17.14	16.56	16.78	954,200	+0.18(+1.08%)
May 03, 2006	16.66	16.97	16.30	16.60	801,900	-0.02(-0.12%)
May 02, 2006	16.01	16.74	15.70	16.62	1,044,300	+0.55(+3.42%)
May 01, 2006	15.65	16.19	15.65	16.07	557,000	+0.38(+2.42%)
Apr 28, 2006	15.63	16.10	15.50	15.69	390,700	-0.03(-0.19%)
Apr 27, 2006	15.55	16.19	15.30	15.72	539,900	+0.21(+1.35%)
Apr 26, 2006	15.78	15.90	15.12	15.51	828,300	-0.44(-2.76%)
Apr 25, 2006	16.18	16.25	15.75	15.95	632,200	-0.23(-1.42%)
Apr 24, 2006	15.95	16.36	15.43	16.18	1,087,700	-0.06(-0.37%)
Apr 21, 2006	16.05	16.49	15.90	16.24	1,529,500	-0.36(-2.17%)
Apr 20, 2006	16.05	16.85	16.05	16.60	3,181,600	+0.43(+2.66%)
Apr 19, 2006	14.00	16.23	13.96	16.17	3,214,600	+1.96(+13.79%)
Apr 18, 2006	13.84	14.29	13.70	14.21	924,000	+0.46(+3.35%)
Apr 17, 2006	13.64	14.10	13.57	13.75	1,505,000	+0.10(+0.73%)
Apr 13, 2006	13.86	13.85	13.50	13.65	1,100,100	-0.21(-1.52%)
Apr 12, 2006	13.60	13.90	13.51	13.86	390,300	+0.32(+2.36%)
Apr 11, 2006	14.17	14.18	13.52	13.54	667,700	-0.55(-3.90%)
Apr 10, 2006	13.87	14.20	13.81	14.09	615,000	+0.21(+1.51%)
Apr 07, 2006	14.14	14.29	13.78	13.88	1,225,100	-0.38(-2.66%)
Apr 06, 2006	14.11	14.30	13.90	14.26	911,300	+0.18(+1.28%)
Apr 05, 2006	14.00	14.13	13.85	14.08	1,560,900	+0.10(+0.72%)
Apr 04, 2006	13.98	14.15	13.68	13.98	961,100	-0.01(-0.07%)
Apr 03, 2006	13.28	14.14	13.28	13.99	1,823,600	+0.69(+5.19%)
Mar 31, 2006	13.42	13.48	12.95	13.30	1,289,700	-0.39(-2.85%)
Mar 30, 2006	13.90	13.96	13.39	13.69	497,900	-0.16(-1.16%)
Mar 29, 2006	13.49	13.94	13.38	13.85	1,468,500	+0.35(+2.59%)
Mar 28, 2006	13.21	13.60	13.15	13.50	1,033,600	+0.30(+2.27%)
Mar 27, 2006	12.90	13.24	12.87	13.20	747,000	+0.25(+1.93%)
Mar 24, 2006	12.90	13.20	12.77	12.95	595,200	-0.04(-0.31%)
Mar 23, 2006	13.00	13.25	12.90	12.99	552,700	-0.02(-0.15%)
Mar 22, 2006	12.83	13.17	12.75	13.01	910,600	+0.18(+1.40%)
Mar 21, 2006	12.76	13.07	12.52	12.83	978,800	+0.06(+0.47%)
Mar 20, 2006	12.71	13.29	12.64	12.77	1,564,700	+0.01(+0.08%)
Mar 17, 2006	12.42	12.97	12.36	12.76	2,567,500	+0.40(+3.24%)
Mar 16, 2006	12.01	12.50	12.01	12.36	2,280,000	+0.36(+3.00%)
Mar 15, 2006	10.89	12.02	10.89	12.00	2,145,700	+1.11(+10.19%)
Mar 14, 2006	10.53	11.04	10.38	10.89	1,383,300	+0.38(+3.62%)
Mar 13, 2006	10.48	10.74	10.47	10.51	636,300	+0.03(+0.29%)
Mar 10, 2006	10.23	10.49	10.00	10.48	489,700	+0.26(+2.54%)
Mar 09, 2006	10.35	10.50	10.18	10.22	829,000	-0.26(-2.48%)
Mar 08, 2006	10.61	10.61	10.32	10.48	849,500	-0.12(-1.13%)
Mar 07, 2006	10.30	10.70	10.30	10.60	1,114,700	+0.29(+2.81%)
Mar 06, 2006	10.41	10.54	10.30	10.31	628,500	-0.18(-1.72%)
Mar 03, 2006	10.40	10.57	10.25	10.49	649,800	+0.09(+0.87%)
Mar 02, 2006	10.49	10.76	10.20	10.40	1,300,500	+0.18(+1.76%)