Ticker: NI CUSIP: 65473P105 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2018 | 5,400 | $129 | $18.30 | $17.40 - $19.75 |
| Q4 2017 | 10,600 | $272 | $20.38 | $18.94 - $21.35 |
| Q3 2017 | 10,600 | $271 | $20.05 | $18.94 - $20.85 |
| Q2 2017 | 10,100 | $256 | $18.88 | $17.73 - $20.15 |
| Q1 2017 | 10,100 | $240 | $17.18 | $16.18 - $18.30 |
| Q4 2016 | 6,100 | $135 | $16.59 | $15.82 - $17.85 |
| Q3 2016 | 6,100 | $147 | $18.54 | $17.21 - $19.86 |
| Q2 2016 | 6,100 | $162 | $17.66 | $16.09 - $19.56 |
| Q2 2015 | 8,000 | $365 | $12.70 | $11.86 - $13.80 |
| Q1 2015 | 8,000 | $353 | $12.01 | $11.41 - $12.59 |
| Q4 2014 | 8,000 | $347 | $11.47 | $10.36 - $12.46 |
| Q3 2014 | 8,000 | $328 | $10.70 | $9.93 - $11.50 |
| Q2 2014 | 8,000 | $315 | $10.06 | $9.35 - $10.87 |
| Q1 2014 | 8,000 | $284 | $9.34 | $8.67 - $10.02 |
| Q4 2013 | 8,000 | $261 | $8.50 | $8.06 - $9.04 |
| Q3 2013 | 8,000 | $247 | $8.06 | $7.51 - $8.38 |
| Q2 2013 | 8,000 | $229 | $7.81 | $7.21 - $8.30 |
| Q1 2013 | 8,000 | $235 | $7.14 | $6.50 - $7.75 |
| Q4 2012 | 8,000 | $199 | — | — |
| Q3 2012 | 5,500 | $140 | — | — |
| Q2 2012 | 5,500 | $136 | — | — |
| Q1 2012 | 5,500 | $134 | — | — |
| Q4 2011 | 5,500 | $131 | — | — |
| Q3 2011 | 5,500 | $118 | — | — |
| Q2 2011 | 5,500 | $111 | — | — |
| Q1 2011 | 5,500 | $106 | — | — |
| Q4 2010 | 2,700 | $48 | — | — |
| Q3 2010 | 2,700 | $47 | — | — |
| Q2 2010 | 2,700 | $39 | — | — |
| Q1 2010 | 2,700 | $43 | — | — |
| Q4 2009 | 2,700 | $42 | — | — |
| Q3 2009 | 2,700 | $38 | — | — |
| Q2 2009 | 2,700 | $31 | — | — |
| Q4 2008 | 2,700 | $30 | — | — |
| Q3 2008 | 2,700 | $40 | — | — |
| Q2 2008 | 2,700 | $48 | — | — |
| Q1 2008 | 2,700 | $47 | — | — |
| Q4 2007 | 2,700 | $51 | — | — |
| Q3 2007 | 1,000 | $19 | — | — |
| Q2 2007 | 1,000 | $21 | — | — |
| Q1 2007 | 1,000 | $24 | — | — |
| Q4 2006 | 1,000 | $24 | — | — |