WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q4 2018

Shares 30,467 Value ($000) $2,016 Avg Close $64.35 Range $53.36 - $76.44

Q3 2018

Shares 40,100 Value ($000) $3,333 Avg Close $86.83 Range $72.82 - $100.10

Q4 2017

Shares 17,100 Value ($000) $1,822 Avg Close $81.78 Range $72.56 - $95.02

Q1 2016

Shares 22,200 Value ($000) $1,028 Avg Close $39.11 Range $34.33 - $46.52

Q4 2015

Shares 53,800 Value ($000) $2,922 Avg Close $49.75 Range $44.01 - $54.52

Q3 2015

Shares 53,716 Value ($000) $2,787 Avg Close $49.96 Range $42.26 - $59.13

Q2 2015

Shares 6,800 Value ($000) $466 Avg Close $62.10 Range $58.06 - $67.58

Q1 2015

Shares 118,570 Value ($000) $8,530 Avg Close $54.56 Range $46.07 - $62.01

Q4 2014

Shares 130,300 Value ($000) $7,960 Avg Close $57.80 Range $45.45 - $73.16

Q3 2014

Shares 30,900 Value ($000) $2,676 Avg Close $76.69 Range $70.51 - $83.52

Q2 2014

Shares 7,100 Value ($000) $595 Avg Close $63.36 Range $52.18 - $72.01

Q1 2014

Shares 6,100 Value ($000) $404 Avg Close $53.68 Range $48.11 - $58.70

Q4 2013

Shares 6,068 Value ($000) $741 Avg Close $47.34 Range $43.59 - $51.55

Q2 2013

Shares 7,765 Value ($000) $749 Avg Close $37.72 Range $32.17 - $41.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	30,467	$2,016	$64.35	$53.36 - $76.44
Q3 2018	40,100	$3,333	$86.83	$72.82 - $100.10
Q4 2017	17,100	$1,822	$81.78	$72.56 - $95.02
Q1 2016	22,200	$1,028	$39.11	$34.33 - $46.52
Q4 2015	53,800	$2,922	$49.75	$44.01 - $54.52
Q3 2015	53,716	$2,787	$49.96	$42.26 - $59.13
Q2 2015	6,800	$466	$62.10	$58.06 - $67.58
Q1 2015	118,570	$8,530	$54.56	$46.07 - $62.01
Q4 2014	130,300	$7,960	$57.80	$45.45 - $73.16
Q3 2014	30,900	$2,676	$76.69	$70.51 - $83.52
Q2 2014	7,100	$595	$63.36	$52.18 - $72.01
Q1 2014	6,100	$404	$53.68	$48.11 - $58.70
Q4 2013	6,068	$741	$47.34	$43.59 - $51.55
Q2 2013	7,765	$749	$37.72	$32.17 - $41.82