WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

CENTRAL TRUST Co's Holding History (CIK: 0000044365)

Note: Option positions (PUT/CALL) are excluded.

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