OraPharma, Inc.

DateInflation Amount Per Share*
3/9/2000**$14.19***
3/10/2000$14.19
3/13/2000$13.8185
3/14/2000$11.4785
3/15/2000$11.4121
3/16/2000$11.1104
3/17/2000$10.8302
3/20/2000$8.5262
3/21/2000$3.6927
3/22/2000$4.3285
3/23/2000$5.0071
3/24/2000$4.7259
3/27/2000$7.1252
3/28/2000$8.1745
3/29/2000$7.5754
3/30/2000$7.4235
3/31/2000$4.9212
4/3/2000$5.242
4/4/2000$2.9852
4/5/2000$0.8535
4/6/2000$0.4782
4/7/2000$0.2615
4/10/2000$0.4775
4/11/2000$0
4/12/2000$0
4/13/2000$0
4/14/2000$0
4/17/2000$0
4/18/2000$0
4/19/2000$0
4/20/2000$0
4/24/2000$0
4/25/2000$0
4/26/2000$0.0703
4/27/2000$0.4399
4/28/2000$0.0253
5/1/2000$0.0729
5/2/2000$0.0017
5/3/2000$0
5/4/2000$0
5/5/2000$0
5/8/2000$0
5/9/2000$0
5/10/2000$0
5/11/2000$0
5/12/2000$0
5/15/2000$0
5/16/2000$0
5/17/2000$0
5/18/2000$0
5/19/2000$0
5/22/2000$0
5/23/2000$0
5/24/2000$0
5/25/2000$0
5/26/2000$0
5/30/2000$0
5/31/2000$0
6/1/2000$0
6/2/2000$0
6/5/2000$0
6/6/2000$0
6/7/2000$0
6/8/2000$0
6/9/2000$0
6/12/2000$0
6/13/2000$0
6/14/2000$0
6/15/2000$0
6/16/2000$0
6/19/2000$0
6/20/2000$0.2867
6/21/2000$0.2597
6/22/2000$0.2714
6/23/2000$0.2869
6/26/2000$0.2915
6/27/2000$0.2798
6/28/2000$0.1837
6/29/2000$0
6/30/2000$0
7/3/2000$0.1663
7/5/2000$0.194
7/6/2000$0.2208
7/7/2000$0.1127
7/10/2000$0.0215
7/11/2000$0
7/12/2000$0
7/13/2000$0
7/14/2000$0
7/17/2000$0
7/18/2000$0
7/19/2000$0
7/20/2000$0
7/21/2000$0
7/24/2000$0
7/25/2000$0
7/26/2000$0
7/27/2000$0
7/28/2000$0
7/31/2000$0
8/1/2000$0
8/2/2000$0
8/3/2000$0
8/4/2000$0
8/7/2000$0
8/8/2000$0
8/9/2000$0
8/10/2000$0
8/11/2000$0
8/14/2000$0
8/15/2000$0
8/16/2000$0
8/17/2000$0
8/18/2000$0
8/21/2000$0
8/22/2000$0
8/23/2000$0
8/24/2000$0
8/25/2000$0
8/28/2000$0
8/29/2000$0
8/30/2000$0
8/31/2000$0.1062
9/1/2000$0
9/5/2000$0.1547
9/6/2000$0.1557
9/7/2000$0
9/8/2000$0
9/11/2000$0
9/12/2000$0.0922
9/13/2000$0.0654
9/14/2000$0
9/15/2000$0
9/18/2000$0
9/19/2000$0
9/20/2000$0.1217
9/21/2000$0.0688
9/22/2000$0.1036
9/25/2000$0.164
9/26/2000$0.1901
9/27/2000$0.0379
9/28/2000$0.1976
9/29/2000$2.0966
10/2/2000$0.7952
10/3/2000$0.759
10/4/2000$0.6252
10/5/2000$0.2258
10/6/2000$0.2705
10/9/2000$0.3747
10/10/2000$0.0918
10/11/2000$0.1512
10/12/2000$0.4727
10/13/2000$0.0468
10/16/2000$0.0223
10/17/2000$0.0749
10/18/2000$0.4787
10/19/2000$0.0099
10/20/2000$0
10/23/2000$0.0149
10/24/2000$0.5545
10/25/2000$0.123
10/26/2000$0.0812
10/27/2000$0.0676
10/30/2000$0.1217
10/31/2000$0.032
11/1/2000$0
11/2/2000$0.1949
11/3/2000$0.1701
11/6/2000$0.2345
11/7/2000$0.0942
11/8/2000$0.2565
11/9/2000$0.5838
11/10/2000$1.0315
11/13/2000$1.0913
11/14/2000$0
11/15/2000$0.0572
11/16/2000$0.1442
11/17/2000$0
11/20/2000$0.2759
11/21/2000$0.0756
11/22/2000$0.3373
11/24/2000$0
11/27/2000$0
11/28/2000$0
11/29/2000$0
11/30/2000$0
12/1/2000$0.0113
12/4/2000$0.0556
12/5/2000$0.3137
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 $18.00 per share have no artificial inflation.