Oratec Interventions, Inc.

DateInflation Amount Per Share*
4/5/2000**$10.7598***
4/6/2000$10.7598
4/7/2000$10.7598
4/10/2000$10.7598
4/11/2000$10.7598
4/12/2000$10.7598
4/13/2000$10.7598
4/14/2000$10.7598
4/17/2000$10.7598
4/18/2000$10.7598
4/19/2000$10.7598
4/20/2000$10.7598
4/24/2000$10.7598
4/25/2000$10.7598
4/26/2000$10.7598
4/27/2000$10.7598
4/28/2000$10.7598
5/1/2000$10.7598
5/2/2000$10.7598
5/3/2000$10.7598
5/4/2000$10.7598
5/5/2000$10.7598
5/8/2000$10.7598
5/9/2000$10.7598
5/10/2000$10.7598
5/11/2000$10.7598
5/12/2000$10.7598
5/15/2000$10.7598
5/16/2000$10.7598
5/17/2000$10.7598
5/18/2000$10.7598
5/19/2000$10.7598
5/22/2000$10.7598
5/23/2000$10.7598
5/24/2000$10.7598
5/25/2000$10.7598
5/26/2000$10.7598
5/30/2000$10.7598
5/31/2000$10.7598
6/1/2000$10.7598
6/2/2000$10.7598
6/5/2000$10.7598
6/6/2000$10.7598
6/7/2000$10.7598
6/8/2000$10.7598
6/9/2000$10.7598
6/12/2000$10.7598
6/13/2000$10.7598
6/14/2000$10.7598
6/15/2000$10.7598
6/16/2000$10.7598
6/19/2000$10.7598
6/20/2000$10.7598
6/21/2000$10.7598
6/22/2000$10.7598
6/23/2000$10.7598
6/26/2000$10.7598
6/27/2000$10.7598
6/28/2000$10.7598
6/29/2000$10.7598
6/30/2000$10.7598
7/3/2000$10.7598
7/5/2000$10.7598
7/6/2000$10.7598
7/7/2000$10.7598
7/10/2000$10.7598
7/11/2000$10.7598
7/12/2000$10.7598
7/13/2000$10.7598
7/14/2000$10.7598
7/17/2000$10.7598
7/18/2000$10.7598
7/19/2000$10.7598
7/20/2000$10.7598
7/21/2000$10.7598
7/24/2000$10.7598
7/25/2000$10.7598
7/26/2000$10.7598
7/27/2000$10.7598
7/28/2000$10.7598
7/31/2000$10.7598
8/1/2000$10.7598
8/2/2000$10.7598
8/3/2000$10.7598
8/4/2000$10.7598
8/7/2000$10.7598
8/8/2000$10.7598
8/9/2000$10.7598
8/10/2000$10.7598
8/11/2000$10.7598
8/14/2000$10.7598
8/15/2000$10.7598
8/16/2000$10.7598
8/17/2000$10.7598
8/18/2000$10.7598
8/21/2000$10.7598
8/22/2000$10.7598
8/23/2000$10.7598
8/24/2000$10.7598
8/25/2000$10.7598
8/28/2000$10.7598
8/29/2000$10.7598
8/30/2000$10.7598
8/31/2000$10.7598
9/1/2000$10.7598
9/5/2000$10.7598
9/6/2000$10.7598
9/7/2000$10.7598
9/8/2000$10.7598
9/11/2000$10.7598
9/12/2000$10.7598
9/13/2000$10.7598
9/14/2000$10.7598
9/15/2000$10.7598
9/18/2000$10.7598
9/19/2000$10.7598
9/20/2000$10.7598
9/21/2000$10.7598
9/22/2000$10.7598
9/25/2000$0.2438
9/26/2000$0
9/27/2000$0
9/28/2000$0.1299
9/29/2000$0.2253
10/2/2000$1.1854
10/3/2000$0.929
10/4/2000$0.4181
10/5/2000$0.7908
10/6/2000$0.2484
10/9/2000$0.2432
10/10/2000$0.3326
10/11/2000$0.6638
10/12/2000$1.1134
10/13/2000$0.6319
10/16/2000$1.884
10/17/2000$1.5537
10/18/2000$2.0313
10/19/2000$0.9908
10/20/2000$0.9905
10/23/2000$1.6009
10/24/2000$1.657
10/25/2000$1.0011
10/26/2000$0.7931
10/27/2000$0.2229
10/30/2000$0
10/31/2000$0
11/1/2000$0
11/2/2000$0
11/3/2000$0
11/6/2000$0
11/7/2000$0
11/8/2000$0
11/9/2000$0
11/10/2000$0
11/13/2000$0.0064
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$0.3654
12/5/2000$0.0031
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.