Commerce One, Inc.

DateInflation Amount Per Share*
7/1/1999**$0***
7/2/1999$0
7/6/1999$0
7/7/1999$0
7/8/1999$0
7/9/1999$0
7/12/1999$0
7/13/1999$0
7/14/1999$0
7/15/1999$0
7/16/1999$0
7/19/1999$0
7/20/1999$0
7/21/1999$0
7/22/1999$0
7/23/1999$0
7/26/1999$0
7/27/1999$0
7/28/1999$0
7/29/1999$0
7/30/1999$0
8/2/1999$0
8/3/1999$0
8/4/1999$0
8/5/1999$0
8/6/1999$0
8/9/1999$0
8/10/1999$0
8/11/1999$0
8/12/1999$0
8/13/1999$0
8/16/1999$0
8/17/1999$0
8/18/1999$0
8/19/1999$0
8/20/1999$0
8/23/1999$0
8/24/1999$0
8/25/1999$0
8/26/1999$0
8/27/1999$0
8/30/1999$0
8/31/1999$0
9/1/1999$0
9/2/1999$0
9/3/1999$0
9/7/1999$0
9/8/1999$0
9/9/1999$0
9/10/1999$0
9/13/1999$0
9/14/1999$0
9/15/1999$0
9/16/1999$0
9/17/1999$0
9/20/1999$0
9/21/1999$0
9/22/1999$0
9/23/1999$0
9/24/1999$0
9/27/1999$0
9/28/1999$0
9/29/1999$0
9/30/1999$0
10/1/1999$0
10/4/1999$0
10/5/1999$0
10/6/1999$0
10/7/1999$0
10/8/1999$0
10/11/1999$0
10/12/1999$0
10/13/1999$0
10/14/1999$0
10/15/1999$0
10/18/1999$0
10/19/1999$0
10/20/1999$0
10/21/1999$0.5044
10/22/1999$0
10/25/1999$0.2246
10/26/1999$0.2715
10/27/1999$0.225
10/28/1999$0
10/29/1999$0
11/1/1999$3.2948
11/2/1999$3.5554
11/3/1999$17.3388
11/4/1999$16.61
11/5/1999$18.74
11/8/1999$18.74
11/9/1999$18.74
11/10/1999$18.74
11/11/1999$18.74
11/12/1999$18.74
11/15/1999$18.74
11/16/1999$18.74
11/17/1999$18.74
11/18/1999$18.74
11/19/1999$18.74
11/22/1999$18.74
11/23/1999$18.74
11/24/1999$18.74
11/26/1999$18.74
11/29/1999$18.74
11/30/1999$18.74
12/1/1999$18.74
12/2/1999$18.74
12/3/1999$18.74
12/6/1999$18.74
12/7/1999$18.74
12/8/1999$18.74
12/9/1999$18.74
12/10/1999$18.74
12/13/1999$18.74
12/14/1999$18.74
12/15/1999$18.74
12/16/1999$18.74
12/17/1999$18.74
12/20/1999$18.74
12/21/1999$18.74
12/22/1999$18.74
12/23/1999$18.74
12/27/1999$18.74
12/28/1999$18.74
12/29/1999$18.74
12/30/1999$18.74
12/31/1999$18.74
1/3/2000$18.74
1/4/2000$18.74
1/5/2000$18.74
1/6/2000$18.74
1/7/2000$18.74
1/10/2000$18.74
1/11/2000$18.74
1/12/2000$18.74
1/13/2000$18.74
1/14/2000$18.74
1/18/2000$18.74
1/19/2000$18.74
1/20/2000$18.74
1/21/2000$18.74
1/24/2000$18.74
1/25/2000$18.74
1/26/2000$18.74
1/27/2000$18.74
1/28/2000$18.74
1/31/2000$18.74
2/1/2000$18.74
2/2/2000$18.74
2/3/2000$18.74
2/4/2000$18.74
2/7/2000$18.74
2/8/2000$18.74
2/9/2000$18.74
2/10/2000$18.74
2/11/2000$18.74
2/14/2000$18.74
2/15/2000$18.74
2/16/2000$18.74
2/17/2000$18.74
2/18/2000$18.74
2/22/2000$18.74
2/23/2000$18.74
2/24/2000$18.74
2/25/2000$18.74
2/28/2000$18.74
2/29/2000$18.74
3/1/2000$18.74
3/2/2000$18.74
3/3/2000$18.74
3/6/2000$18.74
3/7/2000$18.74
3/8/2000$18.74
3/9/2000$18.74
3/10/2000$18.74
3/13/2000$18.74
3/14/2000$18.74
3/15/2000$18.74
3/16/2000$18.74
3/17/2000$18.74
3/20/2000$18.74
3/21/2000$18.74
3/22/2000$18.74
3/23/2000$18.74
3/24/2000$18.74
3/27/2000$18.74
3/28/2000$18.74
3/29/2000$18.74
3/30/2000$18.74
3/31/2000$18.74
4/3/2000$18.0418
4/4/2000$18.74
4/5/2000$12.9351
4/6/2000$18.74
4/7/2000$18.74
4/10/2000$18.7008
4/11/2000$13.0201
4/12/2000$5.56
4/13/2000$2.6919
4/14/2000$0
4/17/2000$0
4/18/2000$1.6009
4/19/2000$6.2014
4/20/2000$18.74
4/24/2000$10.7045
4/25/2000$18.74
4/26/2000$18.74
4/27/2000$18.74
4/28/2000$18.74
5/1/2000$18.74
5/2/2000$18.74
5/3/2000$18.74
5/4/2000$18.74
5/5/2000$18.74
5/8/2000$14.4594
5/9/2000$9.786
5/10/2000$11.6453
5/11/2000$6.8239
5/12/2000$4.8924
5/15/2000$5.9704
5/16/2000$8.6253
5/17/2000$4.7427
5/18/2000$3.4181
5/19/2000$5.5991
5/22/2000$5.0612
5/23/2000$1.5853
5/24/2000$1.9019
5/25/2000$0.4973
5/26/2000$0.3735
5/30/2000$1.4437
5/31/2000$0
6/1/2000$1.45
6/2/2000$6.8908
6/5/2000$12.0253
6/6/2000$4.5857
6/7/2000$6.9135
6/8/2000$17.3509
6/9/2000$13.382
6/12/2000$12.6499
6/13/2000$18.2421
6/14/2000$12.6877
6/15/2000$10.634
6/16/2000$7.2027
6/19/2000$5.4133
6/20/2000$1.705
6/21/2000$2.7587
6/22/2000$2.5088
6/23/2000$1.6887
6/26/2000$1.5316
6/27/2000$1.3562
6/28/2000$1.7084
6/29/2000$1.2823
6/30/2000$3.1233
7/3/2000$2.5074
7/5/2000$2.5156
7/6/2000$0.8751
7/7/2000$0
7/10/2000$0.0228
7/11/2000$1.3564
7/12/2000$6.7094
7/13/2000$18.74
7/14/2000$18.74
7/17/2000$18.74
7/18/2000$18.74
7/19/2000$15.1372
7/20/2000$16.3259
7/21/2000$10.9841
7/24/2000$7.2221
7/25/2000$3.9175
7/26/2000$3.1343
7/27/2000$3.2926
7/28/2000$2.4313
7/31/2000$1.8267
8/1/2000$1.12
8/2/2000$2.5761
8/3/2000$3.5892
8/4/2000$3.6345
8/7/2000$8.4854
8/8/2000$9.9144
8/9/2000$3.5459
8/10/2000$5.5418
8/11/2000$8.848
8/14/2000$6.0514
8/15/2000$6.647
8/16/2000$3.5566
8/17/2000$3.4218
8/18/2000$3.8627
8/21/2000$3.1233
8/22/2000$5.6303
8/23/2000$3.4702
8/24/2000$3.1233
8/25/2000$8.8981
8/28/2000$3.9486
8/29/2000$4.688
8/30/2000$18.74
8/31/2000$18.74
9/1/2000$18.74
9/5/2000$18.74
9/6/2000$18.74
9/7/2000$18.74
9/8/2000$18.74
9/11/2000$18.74
9/12/2000$18.74
9/13/2000$18.74
9/14/2000$18.74
9/15/2000$18.74
9/18/2000$18.74
9/19/2000$18.74
9/20/2000$18.74
9/21/2000$18.74
9/22/2000$18.74
9/25/2000$18.74
9/26/2000$18.74
9/27/2000$18.74
9/28/2000$18.74
9/29/2000$18.74
10/2/2000$18.74
10/3/2000$18.74
10/4/2000$18.74
10/5/2000$18.74
10/6/2000$18.74
10/9/2000$18.74
10/10/2000$18.74
10/11/2000$18.74
10/12/2000$18.74
10/13/2000$18.74
10/16/2000$18.74
10/17/2000$18.74
10/18/2000$18.74
10/19/2000$18.74
10/20/2000$18.74
10/23/2000$18.74
10/24/2000$18.74
10/25/2000$18.74
10/26/2000$18.74
10/27/2000$18.74
10/30/2000$18.74
10/31/2000$18.74
11/1/2000$18.74
11/2/2000$18.74
11/3/2000$18.74
11/6/2000$18.74
11/7/2000$18.74
11/8/2000$18.74
11/9/2000$18.74
11/10/2000$18.74
11/13/2000$18.74
11/14/2000$18.74
11/15/2000$18.74
11/16/2000$18.74
11/17/2000$18.74
11/20/2000$10.5581
11/21/2000$7.1624
11/22/2000$0
11/24/2000$6.7235
11/27/2000$0.2746
11/28/2000$0
11/29/2000$0
11/30/2000$0
12/1/2000$0
12/4/2000$0
12/5/2000$0
12/6/2000$0

* Data shown are adjusted forward for all stock splits between the IPO and 12/6/00.

** Purchases on a date not listed in the chart above have no artificial inflation.

*** Purchases in the IPO itself at $21.00 per share have no artificial inflation.