WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

WASHINGTON TRUST Co's Holding History (CIK: 0001079736)

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

Q1 2021

Shares 8 Value ($000) $1 Avg Close $80.32 Range $68.77 - $90.16

Q4 2020

Shares 54 Value ($000) $4 Avg Close $68.91 Range $56.02 - $78.45

Q3 2020

Shares 57 Value ($000) $4 Avg Close $54.23 Range $46.16 - $63.35

Q2 2020

Shares 60 Value ($000) $3 Avg Close $42.05 Range $30.99 - $55.36

Q1 2020

Shares 53 Value ($000) $2 Avg Close $51.06 Range $26.40 - $65.18

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	8	$1	$80.32	$68.77 - $90.16
Q4 2020	54	$4	$68.91	$56.02 - $78.45
Q3 2020	57	$4	$54.23	$46.16 - $63.35
Q2 2020	60	$3	$42.05	$30.99 - $55.36
Q1 2020	53	$2	$51.06	$26.40 - $65.18