NorthPoint Communications Group, Inc.

DateInflation Amount Per Share*
5/5/1999**$26.6473***
5/6/1999$26.6473
5/7/1999$26.6473
5/10/1999$26.6473
5/11/1999$26.6473
5/12/1999$26.6473
5/13/1999$26.6473
5/14/1999$26.6473
5/17/1999$26.6473
5/18/1999$26.6473
5/19/1999$26.6473
5/20/1999$26.6473
5/21/1999$26.6473
5/24/1999$24.3691
5/25/1999$23.0298
5/26/1999$23.4635
5/27/1999$25.6523
5/28/1999$26.6473
6/1/1999$26.6473
6/2/1999$26.6473
6/3/1999$26.6473
6/4/1999$26.6473
6/7/1999$26.6473
6/8/1999$26.6473
6/9/1999$25.895
6/10/1999$25.7098
6/11/1999$25.6493
6/14/1999$23.9791
6/15/1999$22.3995
6/16/1999$24.7673
6/17/1999$25.016
6/18/1999$25.1397
6/21/1999$24.8854
6/22/1999$23.8264
6/23/1999$23.9817
6/24/1999$24.0788
6/25/1999$23.5632
6/28/1999$22.8256
6/29/1999$23.7601
6/30/1999$24.7568
7/1/1999$24.099
7/2/1999$25.378
7/6/1999$26.4411
7/7/1999$26.6473
7/8/1999$26.6473
7/9/1999$25.9984
7/12/1999$26.5611
7/13/1999$26.6473
7/14/1999$26.6473
7/15/1999$26.6473
7/16/1999$26.6473
7/19/1999$26.6473
7/20/1999$26.6473
7/21/1999$24.8771
7/22/1999$22.0395
7/23/1999$22.0383
7/26/1999$21.011
7/27/1999$20.0064
7/28/1999$19.7384
7/29/1999$18.9613
7/30/1999$18.6964
8/2/1999$18.6661
8/3/1999$17.6986
8/4/1999$16.4507
8/5/1999$17.5738
8/6/1999$17.1371
8/9/1999$16.1381
8/10/1999$15.828
8/11/1999$15.9473
8/12/1999$17.2932
8/13/1999$19.2563
8/16/1999$19.5365
8/17/1999$20.0828
8/18/1999$20.5372
8/19/1999$19.1957
8/20/1999$18.631
8/23/1999$19.002
8/24/1999$18.0621
8/25/1999$20.6213
8/26/1999$21.2178
8/27/1999$21.0303
8/30/1999$19.8772
8/31/1999$19.719
9/1/1999$20.3276
9/2/1999$20.125
9/3/1999$21.4927
9/7/1999$20.0237
9/8/1999$19.3699
9/9/1999$19.2422
9/10/1999$19.0209
9/13/1999$18.9308
9/14/1999$18.4597
9/15/1999$18.2458
9/16/1999$17.433
9/17/1999$17.492
9/20/1999$17.053
9/21/1999$16.683
9/22/1999$16.6811
9/23/1999$16.8134
9/24/1999$16.4066
9/27/1999$15.9209
9/28/1999$15.7796
9/29/1999$15.8136
9/30/1999$15.7505
10/1/1999$15.9851
10/4/1999$15.4964
10/5/1999$15.589
10/6/1999$16.3053
10/7/1999$16.7132
10/8/1999$18.6499
10/11/1999$18.7421
10/12/1999$18.089
10/13/1999$17.7502
10/14/1999$17.8124
10/15/1999$16.9725
10/18/1999$16.4437
10/19/1999$16.7578
10/20/1999$17.3138
10/21/1999$17.2527
10/22/1999$17.5019
10/25/1999$17.3771
10/26/1999$17.5335
10/27/1999$17.6905
10/28/1999$19.3418
10/29/1999$19.8974
11/1/1999$20.3034
11/2/1999$19.0218
11/3/1999$19.5188
11/4/1999$20.7985
11/5/1999$20.8258
11/8/1999$21.5741
11/9/1999$21.5124
11/10/1999$20.6966
11/11/1999$21.9749
11/12/1999$25.2861
11/15/1999$23.3193
11/16/1999$23.7836
11/17/1999$23.9728
11/18/1999$24.4032
11/19/1999$24.7763
11/22/1999$25.0252
11/23/1999$23.3714
11/24/1999$22.6172
11/26/1999$23.585
11/29/1999$22.3055
11/30/1999$20.5613
12/1/1999$20.3084
12/2/1999$21.1767
12/3/1999$20.5158
12/6/1999$19.9818
12/7/1999$19.7306
12/8/1999$20.9815
12/9/1999$20.2943
12/10/1999$20.6056
12/13/1999$20.1041
12/14/1999$19.5164
12/15/1999$19.9179
12/16/1999$19.756
12/17/1999$20.1295
12/20/1999$19.4393
12/21/1999$20.1823
12/22/1999$20.1497
12/23/1999$19.8669
12/27/1999$19.4908
12/28/1999$19.1794
12/29/1999$18.5489
12/30/1999$18.6115
12/31/1999$18.423
1/3/2000$19.3864
1/4/2000$18.8072
1/5/2000$19.3719
1/6/2000$19.3179
1/7/2000$19.029
1/10/2000$19.737
1/11/2000$19.2124
1/12/2000$19.56
1/13/2000$19.8682
1/14/2000$19.8616
1/18/2000$20.4229
1/19/2000$21.0159
1/20/2000$21.2325
1/21/2000$22.1069
1/24/2000$22.271
1/25/2000$22.3602
1/26/2000$23.1179
1/27/2000$22.9636
1/28/2000$21.9416
1/31/2000$22.092
2/1/2000$21.6798
2/2/2000$20.9277
2/3/2000$20.4184
2/4/2000$21.3852
2/7/2000$21.5375
2/8/2000$22.3133
2/9/2000$22.5367
2/10/2000$22.2801
2/11/2000$22.0064
2/14/2000$22.0374
2/15/2000$21.5983
2/16/2000$21.8797
2/17/2000$21.7334
2/18/2000$21.1019
2/22/2000$20.1325
2/23/2000$19.186
2/24/2000$18.7752
2/25/2000$18.3732
2/28/2000$17.9051
2/29/2000$17.7407
3/1/2000$18.4558
3/2/2000$19.8327
3/3/2000$19.791
3/6/2000$19.0119
3/7/2000$19.1403
3/8/2000$21.326
3/9/2000$21.3471
3/10/2000$21.1286
3/13/2000$20.8218
3/14/2000$19.9257
3/15/2000$19.3372
3/16/2000$19.0147
3/17/2000$20.6012
3/20/2000$20.0435
3/21/2000$19.1292
3/22/2000$19.0587
3/23/2000$18.8979
3/24/2000$18.7098
3/27/2000$18.52
3/28/2000$18.1216
3/29/2000$18.3822
3/30/2000$17.6735
3/31/2000$17.918
4/3/2000$16.3083
4/4/2000$14.9359
4/5/2000$15.5891
4/6/2000$16.0222
4/7/2000$15.9798
4/10/2000$15.4625
4/11/2000$14.9706
4/12/2000$14.0194
4/13/2000$14.4307
4/14/2000$12.158
4/17/2000$11.6195
4/18/2000$14.5445
4/19/2000$14.0524
4/20/2000$13.9287
4/24/2000$12.6297
4/25/2000$14.3906
4/26/2000$14.0514
4/27/2000$14.0431
4/28/2000$14.4781
5/1/2000$15.1303
5/2/2000$14.9217
5/3/2000$14.2086
5/4/2000$14.803
5/5/2000$14.8594
5/8/2000$15.3995
5/9/2000$15.342
5/10/2000$14.6997
5/11/2000$14.3157
5/12/2000$14.6873
5/15/2000$14.3073
5/16/2000$14.0807
5/17/2000$14.9917
5/18/2000$14.2169
5/19/2000$13.9449
5/22/2000$13.7587
5/23/2000$13.8948
5/24/2000$13.4801
5/25/2000$13.5463
5/26/2000$12.9733
5/30/2000$13.4365
5/31/2000$14.2535
6/1/2000$13.8978
6/2/2000$15.197
6/5/2000$14.9152
6/6/2000$14.6704
6/7/2000$14.4455
6/8/2000$14.7274
6/9/2000$14.4758
6/12/2000$14.1385
6/13/2000$13.9455
6/14/2000$13.7624
6/15/2000$13.5397
6/16/2000$11.5843
6/19/2000$10.9411
6/20/2000$10.7511
6/21/2000$10.3699
6/22/2000$11.4514
6/23/2000$10.7125
6/26/2000$9.6424
6/27/2000$10.0263
6/28/2000$10.2674
6/29/2000$10.2764
6/30/2000$10.6408
7/3/2000$11.0118
7/5/2000$10.8482
7/6/2000$10.3364
7/7/2000$10.5123
7/10/2000$12.2686
7/11/2000$13.3013
7/12/2000$13.3141
7/13/2000$13.3608
7/14/2000$13.8968
7/17/2000$13.8635
7/18/2000$13.4956
7/19/2000$12.1972
7/20/2000$11.5589
7/21/2000$11.8218
7/24/2000$11.6618
7/25/2000$11.4501
7/26/2000$10.6446
7/27/2000$9.9731
7/28/2000$10.24
7/31/2000$11.2894
8/1/2000$11.6114
8/2/2000$12.1753
8/3/2000$12.1644
8/4/2000$13.7353
8/7/2000$13.9174
8/8/2000$13.5418
8/9/2000$12.6496
8/10/2000$12.0983
8/11/2000$11.6576
8/14/2000$11.3965
8/15/2000$10.583
8/16/2000$11.0187
8/17/2000$10.8832
8/18/2000$11.508
8/21/2000$11.0694
8/22/2000$10.8809
8/23/2000$10.8728
8/24/2000$10.8666
8/25/2000$11.0579
8/28/2000$10.8653
8/29/2000$11.0518
8/30/2000$10.8036
8/31/2000$10.8547
9/1/2000$10.6658
9/5/2000$10.9275
9/6/2000$11.0067
9/7/2000$10.7434
9/8/2000$10.3225
9/11/2000$10.0845
9/12/2000$9.5917
9/13/2000$8.9938
9/14/2000$8.5219
9/15/2000$8.2813
9/18/2000$8.2301
9/19/2000$8.1475
9/20/2000$8.5187
9/21/2000$8.5288
9/22/2000$8.5389
9/25/2000$8.5498
9/26/2000$8.18
9/27/2000$7.8111
9/28/2000$8.6062
9/29/2000$8.3772
10/2/2000$7.9772
10/3/2000$7.5541
10/4/2000$7.1987
10/5/2000$7.426
10/6/2000$6.5929
10/9/2000$6.344
10/10/2000$6.4845
10/11/2000$6.2138
10/12/2000$5.5709
10/13/2000$5.9733
10/16/2000$6.1354
10/17/2000$5.6783
10/18/2000$4.56
10/19/2000$4.6196
10/20/2000$4.518
10/23/2000$5.2699
10/24/2000$5.8417
10/25/2000$5.7407
10/26/2000$5.4823
10/27/2000$5.7298
10/30/2000$5.9852
10/31/2000$6.2771
11/1/2000$7.1569
11/2/2000$6.8309
11/3/2000$6.5151
11/6/2000$6.5199
11/7/2000$6.5194
11/8/2000$6.3413
11/9/2000$6.5483
11/10/2000$5.8234
11/13/2000$5.5158
11/14/2000$4.9293
11/15/2000$4.456
11/16/2000$3.6916
11/17/2000$3.6904
11/20/2000$2.9874
11/21/2000$2.5827
11/22/2000$2.2844
11/24/2000$2.3902
11/27/2000$2.2074
11/28/2000$1.6951
11/29/2000$1.6048
11/30/2000$0.2145
12/1/2000$0.1149
12/4/2000$0.1138
12/5/2000$0.0776
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 $24.00 per share have no artificial inflation.