Exhibit 4
---------
TRANSACTIONS IN SHARES EFFECTED BY REPORTING
PERSONS DURING PAST 60 DAYS
<TABLE>
<CAPTION>
--------------------------------------- --------------------- --------------------------- ---------------------------
Date of Transaction
Nature of Transaction* (Trade Date) Number of Shares Price per Share* *
--------------------------------------- --------------------- --------------------------- ---------------------------
<S> <C> <C> <C>
Purchase of Shares by TSP 10/30/00 5,000 2.072
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 10/31/00 22,500 2.025
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/1/00 20,000 2.025
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/2/00 60,000 1.900
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/3/00 15,000 1.896
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/6/00 37,000 1.896
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/7/00 18,900 1.996
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/8/00 59,500 2.017
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/9/00 30,000 2.025
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/10/00 26,600 1.956
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/13/00 31,700 1.876
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 11/30/00 324,000 1.595
--------------------------------------- --------------------- --------------------------- ---------------------------
Sale of Shares by O'Sullivan*** 11/30/00 4,000 1.750
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 12/20/00 10,000 1.588
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 12/26/00 15,000 1.713
--------------------------------------- --------------------- --------------------------- ---------------------------
Purchase of Shares by TSP 1/10/01 20,000 2.358
--------------------------------------- --------------------- --------------------------- ---------------------------
</TABLE>
----------
* Except as otherwise indicated, all transactions were effected by ordinary
broker's transactions in the over-the-counter market.
** In case of purchases, includes broker's commissions.
*** Shares sold from O'Sullivan family trusts for which O'Sullivan directs
investments.
