InterDigital Inc (IDCC)

[blueskywaves]

INTERDIGITAL (IDCC) 
 BEFORE & AFTER SETTLEMENT 
 Short Interest/Ownership Base 
 5/15/2002 to 4/13/2003 
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               AVERAGE 
             DAILY SHARE  SHORT      INDIVIDUAL   INSTITUTIONAL 
               VOLUME    INTEREST     INVESTORS     INVESTORS 
              (Monthly) (Monthly)    (Quarterly)   (Quarterly) 
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 05/15/2002    366,323     1.80M 
 06/14/2002    263,225     1.89M 
 06/30/2002                             73%           17% 
 07/15/2002    287,599     2.08M 
 08/15/2002    277,592     2.32M 
 09/13/2002    210,278     2.67M 
 09/30/2002                             68%           22% 
 10/15/2002    287,729     2.94M 
 11/15/2002    681,313     3.03M 
 12/13/2002    772,112     3.37M 
 12/30/2002                             61%           29% 
 01/15/2003    616,953     3.27M 
 02/14/2003    537,789     3.82M 
 03/14/2003*   370,963     4.07M 
 03/30/2003                             56%           34% 
 04/15/2003  1,951,616     5.13M 
 05/15/2003        
 06/15/2003 
 06/30/2003 
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 *ERICY settlement 
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 1)Assumption:  Insiders/5+% holders constant at 10% 
 2)Source:  Nasdaq 
 3) Note:  DAYS TO COVER went from 10.9 days before 
 the settlement to 2.6 days after the settlement.   
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