Ticker: NL CUSIP: 629156407 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2018 | 1,558 | $14 | $5.77 | $4.74 - $6.72 |
| Q1 2018 | 1,558 | $12 | $7.02 | $5.07 - $9.94 |
| Q4 2017 | 3,104 | $44 | $8.53 | $6.13 - $10.78 |
| Q3 2017 | 1,534 | $14 | $5.16 | $4.60 - $6.38 |
| Q2 2017 | 1,534 | $11 | $5.28 | $4.03 - $7.32 |
| Q1 2017 | 1,224 | $8 | $4.54 | $3.53 - $6.08 |
| Q4 2016 | 1,224 | $10 | $3.68 | $2.08 - $6.45 |
| Q3 2016 | 1,224 | $5 | $2.38 | $1.51 - $4.17 |
| Q2 2016 | 1,224 | $3 | $1.92 | $1.44 - $2.37 |
| Q1 2016 | 1,224 | $3 | $1.59 | $1.29 - $2.08 |
| Q4 2015 | 1,224 | $4 | $2.26 | $1.77 - $2.84 |
| Q3 2015 | 1,224 | $4 | $3.42 | $1.95 - $5.15 |
| Q2 2015 | 1,224 | $9 | $5.07 | $4.66 - $5.54 |
| Q1 2015 | 1,224 | $9 | $5.04 | $4.59 - $5.87 |
| Q4 2014 | 1,224 | $11 | $5.19 | $4.43 - $6.23 |
| Q3 2014 | 2,931 | $22 | $6.00 | $4.80 - $7.05 |
| Q2 2014 | 1,543 | $14 | $6.35 | $5.61 - $7.46 |
| Q1 2014 | 1,543 | $17 | $7.51 | $6.74 - $8.43 |
| Q4 2013 | 1,543 | $17 | $7.44 | $6.69 - $7.97 |
| Q3 2013 | 1,543 | $18 | $7.29 | $6.80 - $8.16 |
| Q2 2013 | 1,543 | $17 | $7.45 | $6.66 - $8.29 |