Keynote Systems, Inc.

DateInflation Amount Per Share*
9/27/1999**$14.9897***
9/28/1999$14.9897
9/29/1999$14.2482
9/30/1999$12.8149
10/1/1999$13.6261
10/4/1999$12.8039
10/5/1999$13.259
10/6/1999$14.6058
10/7/1999$14.9897
10/8/1999$14.9897
10/11/1999$14.9897
10/12/1999$14.9897
10/13/1999$14.9897
10/14/1999$14.9897
10/15/1999$14.9897
10/18/1999$14.9897
10/19/1999$14.9897
10/20/1999$14.9897
10/21/1999$14.9897
10/22/1999$14.9897
10/25/1999$14.9897
10/26/1999$14.9897
10/27/1999$14.9897
10/28/1999$14.9897
10/29/1999$14.9897
11/1/1999$14.9897
11/2/1999$14.9897
11/3/1999$14.9897
11/4/1999$14.9897
11/5/1999$14.9897
11/8/1999$14.9897
11/9/1999$14.9897
11/10/1999$14.9897
11/11/1999$14.9897
11/12/1999$14.9897
11/15/1999$14.9897
11/16/1999$14.9897
11/17/1999$14.9897
11/18/1999$14.9897
11/19/1999$14.9897
11/22/1999$14.9897
11/23/1999$14.9897
11/24/1999$14.9897
11/26/1999$14.9897
11/29/1999$14.9897
11/30/1999$14.9897
12/1/1999$14.9897
12/2/1999$14.9897
12/3/1999$14.9897
12/6/1999$14.9897
12/7/1999$14.9897
12/8/1999$14.9897
12/9/1999$14.9897
12/10/1999$14.9897
12/13/1999$14.9897
12/14/1999$14.9897
12/15/1999$14.9897
12/16/1999$14.9897
12/17/1999$14.9897
12/20/1999$14.9897
12/21/1999$14.9897
12/22/1999$14.9897
12/23/1999$14.9897
12/27/1999$14.9897
12/28/1999$14.9897
12/29/1999$14.9897
12/30/1999$14.9897
12/31/1999$14.9897
1/3/2000$14.9897
1/4/2000$14.9897
1/5/2000$14.9897
1/6/2000$14.9897
1/7/2000$14.9897
1/10/2000$14.9897
1/11/2000$14.9897
1/12/2000$14.9897
1/13/2000$14.9897
1/14/2000$14.9897
1/18/2000$14.9897
1/19/2000$14.9897
1/20/2000$14.9897
1/21/2000$14.9897
1/24/2000$14.9897
1/25/2000$14.9897
1/26/2000$14.9897
1/27/2000$14.9897
1/28/2000$14.9897
1/31/2000$14.9897
2/1/2000$14.9897
2/2/2000$14.9897
2/3/2000$14.9897
2/4/2000$14.9897
2/7/2000$14.9897
2/8/2000$14.9897
2/9/2000$14.9897
2/10/2000$14.9897
2/11/2000$14.9897
2/14/2000$14.9897
2/15/2000$14.9897
2/16/2000$14.9897
2/17/2000$14.9897
2/18/2000$14.9897
2/22/2000$14.9897
2/23/2000$14.9897
2/24/2000$14.9897
2/25/2000$14.9897
2/28/2000$14.9897
2/29/2000$14.9897
3/1/2000$14.9897
3/2/2000$14.9897
3/3/2000$14.9897
3/6/2000$14.9897
3/7/2000$14.9897
3/8/2000$14.9897
3/9/2000$14.9897
3/10/2000$14.9897
3/13/2000$14.9897
3/14/2000$14.9897
3/15/2000$14.9897
3/16/2000$14.9897
3/17/2000$14.9897
3/20/2000$14.9897
3/21/2000$14.9897
3/22/2000$14.9897
3/23/2000$14.9897
3/24/2000$14.9897
3/27/2000$14.9897
3/28/2000$14.9897
3/29/2000$14.9897
3/30/2000$14.9897
3/31/2000$14.9897
4/3/2000$14.9897
4/4/2000$14.9897
4/5/2000$14.9897
4/6/2000$14.9897
4/7/2000$14.9897
4/10/2000$14.9897
4/11/2000$14.9897
4/12/2000$14.9897
4/13/2000$14.9897
4/14/2000$14.9296
4/17/2000$11.4738
4/18/2000$14.944
4/19/2000$14.9897
4/20/2000$14.9897
4/24/2000$14.9897
4/25/2000$14.9897
4/26/2000$14.9897
4/27/2000$14.9897
4/28/2000$14.9897
5/1/2000$14.9897
5/2/2000$14.9897
5/3/2000$14.9897
5/4/2000$14.9897
5/5/2000$14.9897
5/8/2000$14.9897
5/9/2000$14.9897
5/10/2000$14.9897
5/11/2000$14.9897
5/12/2000$14.9897
5/15/2000$14.9897
5/16/2000$14.9897
5/17/2000$14.9897
5/18/2000$14.9897
5/19/2000$14.9897
5/22/2000$14.9897
5/23/2000$14.9897
5/24/2000$14.9897
5/25/2000$14.9897
5/26/2000$14.9897
5/30/2000$14.9897
5/31/2000$14.9897
6/1/2000$14.9897
6/2/2000$14.9897
6/5/2000$14.9897
6/6/2000$14.9897
6/7/2000$14.9897
6/8/2000$14.9897
6/9/2000$14.9897
6/12/2000$14.9897
6/13/2000$14.9897
6/14/2000$14.9897
6/15/2000$14.9897
6/16/2000$14.9897
6/19/2000$14.9897
6/20/2000$14.9897
6/21/2000$14.9897
6/22/2000$14.9897
6/23/2000$14.9897
6/26/2000$14.9897
6/27/2000$14.9897
6/28/2000$14.9897
6/29/2000$14.9897
6/30/2000$14.9897
7/3/2000$14.9897
7/5/2000$14.9897
7/6/2000$14.9897
7/7/2000$14.9897
7/10/2000$14.9897
7/11/2000$14.9897
7/12/2000$14.9897
7/13/2000$14.9897
7/14/2000$14.9897
7/17/2000$14.9897
7/18/2000$14.9897
7/19/2000$14.9897
7/20/2000$14.9897
7/21/2000$14.9897
7/24/2000$14.9897
7/25/2000$14.9897
7/26/2000$14.9897
7/27/2000$14.9897
7/28/2000$14.9897
7/31/2000$14.9897
8/1/2000$14.9897
8/2/2000$14.7976
8/3/2000$14.7699
8/4/2000$14.9897
8/7/2000$14.4239
8/8/2000$14.6629
8/9/2000$14.9897
8/10/2000$14.9897
8/11/2000$14.9897
8/14/2000$14.9897
8/15/2000$14.9897
8/16/2000$14.8366
8/17/2000$14.9897
8/18/2000$14.9897
8/21/2000$14.9735
8/22/2000$13.7675
8/23/2000$11.4088
8/24/2000$9.5984
8/25/2000$7.3302
8/28/2000$6.2441
8/29/2000$10.7824
8/30/2000$11.301
8/31/2000$11.1884
9/1/2000$10.7894
9/5/2000$10.1289
9/6/2000$8.9285
9/7/2000$6.9063
9/8/2000$4.3655
9/11/2000$8.4428
9/12/2000$7.8033
9/13/2000$10.1742
9/14/2000$8.957
9/15/2000$7.6366
9/18/2000$8.0486
9/19/2000$9.0997
9/20/2000$7.4162
9/21/2000$7.5552
9/22/2000$10.257
9/25/2000$9.4251
9/26/2000$8.3435
9/27/2000$8.0112
9/28/2000$10.7096
9/29/2000$10.5817
10/2/2000$8.275
10/3/2000$7.0081
10/4/2000$6.3891
10/5/2000$6.0332
10/6/2000$7.3869
10/9/2000$9.7968
10/10/2000$9.3026
10/11/2000$6.5098
10/12/2000$5.6852
10/13/2000$7.0627
10/16/2000$6.6043
10/17/2000$5.1156
10/18/2000$4.4563
10/19/2000$5.4641
10/20/2000$7.4053
10/23/2000$12.1054
10/24/2000$11.4743
10/25/2000$11.0028
10/26/2000$10.9183
10/27/2000$8.587
10/30/2000$7.2004
10/31/2000$8.638
11/1/2000$9.9681
11/2/2000$10.3095
11/3/2000$9.4382
11/6/2000$10.1566
11/7/2000$9.4525
11/8/2000$7.5714
11/9/2000$10.4525
11/10/2000$11.0821
11/13/2000$9.3807
11/14/2000$10.5856
11/15/2000$10.2585
11/16/2000$8.4223
11/17/2000$8.5095
11/20/2000$7.4026
11/21/2000$7.8844
11/22/2000$7.6729
11/24/2000$9.6747
11/27/2000$8.0617
11/28/2000$6.6691
11/29/2000$5.1626
11/30/2000$5.9215
12/1/2000$4.8659
12/4/2000$1.4547
12/5/2000$2.2798
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 $14.00 per share have no artificial inflation.