WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

AMICA MUTUAL INSURANCE CO's Holding History (CIK: 0000857508)

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

Q3 2015
Shares 8,730 Value ($000) $453 Avg Close $49.96 Range $42.26 - $59.13
Q2 2015
Shares 8,730 Value ($000) $599 Avg Close $62.10 Range $58.06 - $67.58
Q1 2015
Shares 8,730 Value ($000) $628 Avg Close $54.56 Range $46.07 - $62.01
Q4 2014
Shares 8,730 Value ($000) $533 Avg Close $57.80 Range $45.45 - $73.16
Q3 2014
Shares 8,730 Value ($000) $756 Avg Close $76.69 Range $70.51 - $83.52
Q2 2014
Shares 8,730 Value ($000) $731 Avg Close $63.36 Range $52.18 - $72.01
Q1 2014
Shares 8,730 Value ($000) $578 Avg Close $53.68 Range $48.11 - $58.70