May 21, 2010 Buy 300 15.47 $4.6K conv 33? Cluster? SEC May 7, 2010 Buy 300 15.87 $4.8K conv 45? Cluster? First in 12mo? SEC Oct 10, 2008 Buy 450 3.69 $1.7K conv 35? Cluster? SEC Oct 10, 2008 Buy 200 7.94 $1.6K conv 17? SEC Oct 10, 2008 Buy 250 6.33 $1.6K conv 35? Cluster? SEC Oct 8, 2008 Buy 400 5.43 $2.2K conv 36? Cluster? SEC Oct 8, 2008 Buy 400 7.68 $3.1K conv 38? Cluster? SEC Oct 8, 2008 Buy 400 10.86 $4.3K conv 19? SEC Sep 17, 2008 Buy 300 9.24 $2.8K conv 20? SEC Sep 17, 2008 Buy 300 10.76 $3.2K conv 23? SEC Aug 28, 2008 Buy 300 11.40 $3.4K conv 22? SEC Jul 17, 2008 Buy 300 19.17 $5.8K conv 22? SEC Mar 18, 2008 Buy 300 12.90 $3.9K conv 36? Cluster? SEC Feb 20, 2008 Buy 400 13.65 $5.5K conv 41? Cluster? SEC Nov 1, 2007 Buy 300 16.58 $5K conv 37? Cluster? SEC Oct 9, 2007 Buy 300 17.91 $5.4K conv 39? Cluster? SEC Aug 20, 2007 Buy 300 16.17 $4.9K conv 25? SEC Aug 10, 2007 Buy 300 23.53 $7.1K conv 33? Cluster? SEC Jul 27, 2007 Buy 400 18.17 $7.3K conv 39? Cluster? SEC Jul 25, 2007 Buy 400 18.55 $7.4K conv 40? Cluster? SEC Jul 25, 2007 Buy 500 18.84 $9.4K conv 42? Cluster? SEC Jul 25, 2007 Buy 500 25.83 $12.9K conv 41? First in 12mo? SEC Jul 25, 2007 Buy 500 18.84 $9.4K conv 34? SEC Jul 24, 2007 Buy 1,500 19.18 $28.8K conv 93? Cluster? Unusual size? +1 SEC Dec 21, 2005 Buy 300 22.92 USD $6.9K conv 19? SEC