Ticker: WLK CUSIP: 960413102 Class: Common Stock
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2017 | 300 | $32 | $81.78 | $72.56 - $95.02 |
| Q3 2017 | 300 | $25 | $64.66 | $57.52 - $74.59 |
| Q2 2017 | 300 | $20 | $55.73 | $52.23 - $59.49 |
| Q1 2017 | 300 | $20 | $55.38 | $49.25 - $59.68 |
| Q4 2016 | 300 | $17 | $47.64 | $42.61 - $53.78 |
| Q3 2016 | 400 | $21 | $41.92 | $34.93 - $47.03 |
| Q2 2016 | 400 | $17 | $39.55 | $34.26 - $45.64 |
| Q1 2016 | 400 | $19 | $39.11 | $34.33 - $46.52 |
| Q4 2015 | 650 | $35 | $49.75 | $44.01 - $54.52 |
| Q3 2015 | 650 | $34 | $49.96 | $42.26 - $59.13 |
| Q2 2015 | 650 | $45 | $62.10 | $58.06 - $67.58 |
| Q1 2015 | 1,150 | $83 | $54.56 | $46.07 - $62.01 |
| Q4 2014 | 1,910 | $117 | $57.80 | $45.45 - $73.16 |
| Q3 2014 | 1,910 | $165 | $76.69 | $70.51 - $83.52 |
| Q2 2014 | 1,810 | $152 | $63.36 | $52.18 - $72.01 |
| Q1 2014 | 1,910 | $126 | $53.68 | $48.11 - $58.70 |
| Q4 2013 | 980 | $120 | $47.34 | $43.59 - $51.55 |
| Q3 2013 | 1,060 | $111 | $42.90 | $40.28 - $45.40 |
| Q2 2013 | 1,250 | $121 | $37.72 | $32.17 - $41.82 |