Aclara Biosciences, Inc.

DateInflation Amount Per Share*
3/21/2000**$10.5748***
3/22/2000$10.5748
3/23/2000$10.5748
3/24/2000$10.5748
3/27/2000$10.5748
3/28/2000$10.5748
3/29/2000$10.5748
3/30/2000$10.5748
3/31/2000$10.5748
4/3/2000$10.5748
4/4/2000$10.5748
4/5/2000$10.5748
4/6/2000$10.5748
4/7/2000$10.5748
4/10/2000$10.5748
4/11/2000$10.5748
4/12/2000$10.5748
4/13/2000$10.0934
4/14/2000$9.3257
4/17/2000$7.1843
4/18/2000$10.5748
4/19/2000$10.5748
4/20/2000$10.5748
4/24/2000$10.4547
4/25/2000$10.0918
4/26/2000$9.7288
4/27/2000$10.5748
4/28/2000$10.5748
5/1/2000$10.5748
5/2/2000$10.5748
5/3/2000$10.5748
5/4/2000$10.5748
5/5/2000$10.5748
5/8/2000$10.5748
5/9/2000$10.5748
5/10/2000$10.5748
5/11/2000$10.5748
5/12/2000$10.5748
5/15/2000$10.5748
5/16/2000$10.5748
5/17/2000$10.5748
5/18/2000$10.5748
5/19/2000$10.5748
5/22/2000$10.5748
5/23/2000$10.5748
5/24/2000$10.5748
5/25/2000$10.4757
5/26/2000$9.4815
5/30/2000$10.1544
5/31/2000$9.6384
6/1/2000$10.2235
6/2/2000$10.5748
6/5/2000$10.5748
6/6/2000$10.5748
6/7/2000$10.5748
6/8/2000$10.5748
6/9/2000$10.5748
6/12/2000$10.5748
6/13/2000$10.5748
6/14/2000$10.5748
6/15/2000$10.5748
6/16/2000$10.5748
6/19/2000$10.5748
6/20/2000$10.5748
6/21/2000$10.5748
6/22/2000$10.5748
6/23/2000$10.5748
6/26/2000$10.5748
6/27/2000$10.5748
6/28/2000$10.5748
6/29/2000$10.5748
6/30/2000$10.5748
7/3/2000$10.5748
7/5/2000$10.5748
7/6/2000$10.5748
7/7/2000$10.5748
7/10/2000$10.5748
7/11/2000$10.5748
7/12/2000$10.5748
7/13/2000$10.5748
7/14/2000$10.5748
7/17/2000$10.5748
7/18/2000$10.5748
7/19/2000$10.5748
7/20/2000$10.5748
7/21/2000$10.5748
7/24/2000$10.5748
7/25/2000$10.5748
7/26/2000$10.5748
7/27/2000$10.5748
7/28/2000$10.5748
7/31/2000$10.5748
8/1/2000$10.5748
8/2/2000$10.5748
8/3/2000$10.5748
8/4/2000$10.5748
8/7/2000$10.5748
8/8/2000$10.5748
8/9/2000$10.5748
8/10/2000$10.5748
8/11/2000$10.5748
8/14/2000$10.5748
8/15/2000$10.5748
8/16/2000$10.5748
8/17/2000$10.5748
8/18/2000$10.5748
8/21/2000$10.5748
8/22/2000$10.5748
8/23/2000$10.5748
8/24/2000$10.5748
8/25/2000$10.5748
8/28/2000$10.5748
8/29/2000$10.5748
8/30/2000$10.5748
8/31/2000$10.5748
9/1/2000$10.5748
9/5/2000$10.5748
9/6/2000$10.5748
9/7/2000$10.5748
9/8/2000$10.5748
9/11/2000$10.5748
9/12/2000$10.5748
9/13/2000$10.5748
9/14/2000$10.5748
9/15/2000$10.5748
9/18/2000$10.5005
9/19/2000$10.5688
9/20/2000$9.5424
9/21/2000$9.9212
9/22/2000$9.8643
9/25/2000$10.4675
9/26/2000$10.4576
9/27/2000$10.265
9/28/2000$10.3328
9/29/2000$10.4903
10/2/2000$9.2723
10/3/2000$7.93
10/4/2000$4.8652
10/5/2000$3.1305
10/6/2000$5.8541
10/9/2000$5.3885
10/10/2000$7.0741
10/11/2000$6.7766
10/12/2000$7.3209
10/13/2000$6.8395
10/16/2000$8.2375
10/17/2000$7.7419
10/18/2000$7.8304
10/19/2000$6.8088
10/20/2000$8.7208
10/23/2000$9.3975
10/24/2000$9.242
10/25/2000$8.51
10/26/2000$8.9914
10/27/2000$9.1388
10/30/2000$3.9716
10/31/2000$2.732
11/1/2000$2.8878
11/2/2000$2.7193
11/3/2000$2.5997
11/6/2000$2.8158
11/7/2000$1.4241
11/8/2000$1.7824
11/9/2000$0.5987
11/10/2000$0.7786
11/13/2000$0
11/14/2000$0
11/15/2000$0
11/16/2000$0
11/17/2000$0
11/20/2000$0
11/21/2000$0
11/22/2000$0
11/24/2000$0
11/27/2000$0
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.