Ticker: NDAQ CUSIP: 631103108 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2011 | 216,831 | $5,603 | — | — |
| Q4 2010 | 208,809 | $4,955 | — | — |
| Q3 2010 | 200,625 | $3,898 | — | — |
| Q2 2010 | 199,683 | $3,550 | — | — |
| Q1 2010 | 183,038 | $3,866 | — | — |
| Q4 2009 | 164,798 | $3,266 | — | — |
| Q3 2009 | 143,591 | $3,023 | — | — |
| Q2 2009 | 116,512 | $2,483 | — | — |
| Q1 2009 | 85,480 | $1,674 | — | — |
| Q4 2008 | 59,323 | $1,466 | — | — |