Westlake
Insider trading & Transactions

Last updated:

Transaction Date Insider Security Shares Price per share Total value Source
Option
CHAO JAMES director, 10 percent owner, off..
 Employee Option (right to buy) 16,420 $30.05 $493,470
Option
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 30,787 $30.05 $925,242
Option
CHAO JAMES director, 10 percent owner, off..
 Common Stock 16,420 $30.05 $493,470
Sale
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 7,585 $91.52 $694,179
Sale
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 1,700 $89.25 $151,725
Option
CHAO ALBERT director, 10 percent owner, off..
 Employee Option (right to buy) 30,787 $30.05 $925,242
Option
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 30,787 $30.05 $925,242
Sale
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 30,787 $92.22 $2,839,239
Option
CHAO ALBERT director, 10 percent owner, off..
 Employee Option (right to buy) 30,787 $30.05 $925,242
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 2,369 $101.57 $240,619
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 631 $100.77 $63,587
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 6,356 $98.8 $627,947
Option
ZOELLER JOHNATHAN STEVAN officer: VP and CAO
 Restricted Stock Units 986 N/A N/A
Option
ZOELLER JOHNATHAN STEVAN
Restricted Stock Units 986 N/A N/A
Option
ZOELLER JOHNATHAN STEVAN
Common Stock 986 N/A N/A
Option
CHAO JOHN TSUNG-CHEN director, 10 percent owner
 Common Stock 2,400 N/A N/A
Option
JENKINS DOROTHY C director, 10 percent owner
 Common Stock 2,400 N/A N/A
Option
LUBEL KIMBERLY S director
 Restricted Stock Units 2,400 N/A N/A
Option
SHEETS JEFFREY WAYNE director
 Restricted Stock Units 2,400 N/A N/A
Option
CHAO JOHN TSUNG-CHEN director, 10 percent owner
 Restricted Stock Units 2,400 N/A N/A
Option
CHAO DAVID TSUNG-HUNG director, 10 percent owner
 Common Stock 2,400 N/A N/A
Option
CHAO DAVID TSUNG-HUNG director, 10 percent owner
 Restricted Stock Units 2,400 N/A N/A
Option
NORTHCUTT R BRUCE director
 Common Stock 2,400 N/A N/A
Option
SHEETS JEFFREY WAYNE director
 Common Stock 2,400 N/A N/A
Option
GRAFF MICHAEL J director
 Common Stock 2,400 N/A N/A
Option
HAAS MARIUS director
 Restricted Stock Units 2,400 N/A N/A
Option
JENKINS DOROTHY C director, 10 percent owner
 Restricted Stock Units 2,400 N/A N/A
Option
HAAS MARIUS director
 Common Stock 2,400 N/A N/A
Option
MCCOLLUM MARK A director
 Common Stock 2,400 N/A N/A
Option
NORTHCUTT R BRUCE director
 Restricted Stock Units 2,400 N/A N/A
Option
LUBEL KIMBERLY S director
 Common Stock 2,400 N/A N/A
Option
GRAFF MICHAEL J director
 Restricted Stock Units 2,400 N/A N/A
Option
MCCOLLUM MARK A director
 Restricted Stock Units 2,400 N/A N/A
Purchase
CHAO ALBERT director, 10 percent owner, off..
 Common Stock 3,000 $86.21 $258,630
Option
LUBEL KIMBERLY S director
 Restricted Stock Units 3,780 N/A N/A
Option
LUBEL KIMBERLY S director
 Common Stock 3,780 N/A N/A
Sale
BUESINGER ROBERT F. officer: EVP, Vinyl Products
 Common Stock 5,000 N/A N/A
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 15,740 N/A N/A
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 15,740 N/A N/A
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 15,740 N/A N/A
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 15,740 N/A N/A
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Employee Option (right to buy) 10,740 N/A N/A
Sale
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 25,811 N/A N/A
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 25,811 $62.92 $1,624,054
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Employee Option (right to buy) 25,811 N/A N/A
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Employee Option (right to buy) 25,811 $62.92 $1,624,054
Option
BENDER MARK STEVEN director, officer: EVP and CFO
 Common Stock 25,811 N/A N/A
Sale
BUESINGER ROBERT F. officer: EVP, Vinyl Products
 Common Stock 16,513 N/A N/A
Option
BUESINGER ROBERT F. officer: EVP, Vinyl Products
 Common Stock 16,513 $78.43 $1,295,164
Option
BUESINGER ROBERT F. officer: EVP, Vinyl Products
 Employee Option (right to buy) 16,513 N/A N/A

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Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.

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