<a href="http://www.otcbb.com/asp/tradeact_mv.asp?SearchBy=issue&Issue=CLXN&SortBy=volume&Month=1-1-2008&IMAGE1.x=12&IMAGE1.y=4" target="_blank">http://www.otcbb.com/asp/tradeact_mv.asp?SearchBy=issue&Issue=CLXN&SortBy=volume&Month=1-1-2008&IMAGE1.x=12&IMAGE1.y=4</a> January 2008 December 2007 Year-to-Date Volume Rank % Volume Rank % Volume Rank % -------------------------------------------------------------------------------- Total Share Volume 19,700,071 -------------------------------------------------------------------------------- VFIN VFINANCE INVESTMENTS, INC 7,173,000 1 36 5,000 10 <1 7,173,000 1 36 UBSS UBS Securities LLC (UBSS) 4,116,123 2 20 6,858,123 1 75 4,116,123 2 20 NITE KNIGHT EQUITY MARKETS, L.P. 3,258,627 3 16 387,772 5 4 3,258,627 3 16 SBSH CITIGROUP GLOBAL MARKETS INC. 1,807,400 4 9 450,500 4 4 1,807,400 4 9 DOMS DOMESTIC SECURITIES, INC. 1,195,000 5 6 161,000 6 1 1,195,000 5 6 ETRD E*TRADE CAPITAL MARKETS LLC 1,108,703 6 5 468,000 3 5 1,108,703 6 5 AUTO AUTOMATED TRADING DESK FINANCIAL SERVICES, LLC 456,095 7 2 - - - 456,095 7 2 SEAB SEABOARD SECURITIES, INC. 301,120 8 1 30,000 9 <1 301,120 8 1 ABLE NATIXIS BLEICHROEDER INC. 154,003 9 <1 535,000 2 5 154,003 9 <1 HDSN HUDSON SECURITIES,INC. 107,500 10 <1 130,000 7 1 107,500 10 <1 SALI STERNE, AGEE & LEACH, INC. 10,000 11 <1 - - - 10,000 11 <1 SSGI SETON SECURITIES GROUP, INC. 7,500 12 <1 - - - 7,500 12 <1 VERT THE VERTICAL GROUP 5,000 13 <1 5,000 10 <1 5,000 13 <1 -------------------------------------------------------------------------------- Page of 1