| Dec 9, 2011 | Sell | -1,000 | 22.10 USD | $22.1K | | SEC | |
| Dec 9, 2011 | Sell | -534 | 22.30 USD | $11.9K | | SEC | |
| Dec 9, 2011 | Sell | -816 | 22.01 USD | $18K | | SEC | |
| Dec 9, 2011 | Sell | -466 | 22.25 USD | $10.4K | | SEC | |
| Dec 9, 2011 | Sell | -1,000 | 22.00 USD | $22K | | SEC | |
| Dec 9, 2011 | Sell | -184 | 22.25 USD | $4.1K | | SEC | |
| Dec 9, 2011 | Sell | -1,000 | 22.25 USD | $22.3K | | SEC | |
| Dec 5, 2011 | Sell | -1,700 | 21.50 USD | $36.6K | Unusual size | SEC | |
| Dec 1, 2011 | Sell | -100 | 22.99 USD | $2.3K | | SEC | |
| Dec 1, 2011 | Sell | -100 | 22.25 USD | $2.2K | | SEC | |
| Dec 1, 2011 | Sell | -100 | 22.45 USD | $2.2K | | SEC | |
| May 12, 2009 | Buy | 1,000 | 14.25 | $14.3K | conv 52Cluster | SEC | |
| Jul 22, 2008 | Buy | 1,000 | 12.97 | $13K | conv 63ClusterFirst in 12mo | SEC | |
| Feb 15, 2006 | Buy | 3,000 | 18.80 | $56.4K | conv 74ClusterFirst in 12mo | SEC | |