Ticker: NL CUSIP: 629156407 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2021 | 15,300 | $114 | $3.96 | $3.12 - $5.65 |
| Q4 2020 | 15,300 | $73 | $3.28 | $2.87 - $3.78 |
| Q3 2020 | 15,300 | $65 | $2.48 | $1.93 - $3.31 |
| Q2 2020 | 15,300 | $52 | $2.12 | $1.58 - $2.67 |
| Q1 2020 | 15,300 | $46 | $2.25 | $1.55 - $2.69 |
| Q4 2019 | 15,300 | $60 | $2.75 | $2.27 - $3.25 |
| Q3 2019 | 15,300 | $58 | $2.65 | $2.10 - $3.66 |
| Q2 2019 | 15,300 | $56 | $2.44 | $2.04 - $2.84 |
| Q1 2019 | 15,300 | $59 | $2.75 | $2.24 - $3.20 |
| Q4 2018 | 15,300 | $54 | $3.28 | $1.98 - $4.59 |
| Q3 2018 | 15,300 | $92 | $5.35 | $3.96 - $6.38 |
| Q2 2018 | 15,300 | $133 | $5.77 | $4.74 - $6.72 |
| Q1 2018 | 15,300 | $120 | $7.02 | $5.07 - $9.94 |
| Q4 2017 | 15,300 | $218 | $8.53 | $6.13 - $10.78 |
| Q3 2017 | 15,300 | $140 | $5.16 | $4.60 - $6.38 |
| Q2 2017 | 15,300 | $108 | $5.28 | $4.03 - $7.32 |
| Q1 2017 | 15,300 | $99 | $4.54 | $3.53 - $6.08 |
| Q4 2016 | 16,000 | $130 | $3.68 | $2.08 - $6.45 |
| Q3 2016 | 16,800 | $66 | $2.38 | $1.51 - $4.17 |
| Q2 2016 | 18,000 | $46 | $1.92 | $1.44 - $2.37 |
| Q1 2016 | 18,600 | $42 | $1.59 | $1.29 - $2.08 |
| Q4 2015 | 65,000 | $198 | $2.26 | $1.77 - $2.84 |
| Q3 2015 | 65,000 | $194 | $3.42 | $1.95 - $5.15 |
| Q2 2015 | 20,500 | $152 | $5.07 | $4.66 - $5.54 |
| Q1 2015 | 20,500 | $146 | $5.04 | $4.59 - $5.87 |
| Q4 2014 | 20,500 | $146 | $5.19 | $4.43 - $6.23 |
| Q3 2014 | 20,500 | $151 | $6.00 | $4.80 - $7.05 |
| Q2 2014 | 20,500 | $190 | $6.35 | $5.61 - $7.46 |
| Q1 2014 | 20,500 | $217 | $7.51 | $6.74 - $8.43 |
| Q4 2013 | 20,500 | $210 | $7.44 | $6.69 - $7.97 |
| Q3 2013 | 20,741 | $235 | $7.29 | $6.80 - $8.16 |
| Q2 2013 | 17,841 | $202 | $7.45 | $6.66 - $8.29 |