Albert Chao - Dec 1, 2021 Form 4 Insider Report for WESTLAKE CHEMICAL CORP (WLK)

Signature
Albert Chao by Julia Feng POA
Stock symbol
WLK
Transactions as of
Dec 1, 2021
Transactions value $
-$1,899,564
Form type
4
Date filed
12/3/2021, 06:56 AM
Previous filing
Aug 12, 2021
Next filing
Dec 6, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WLK Common Stock Options Exercise $925K +30.8K +6.97% $30.05 473K Dec 1, 2021 Direct
transaction WLK Common Stock Sale -$864K -9.66K -2.04% $89.47 463K Dec 1, 2021 Direct F1
transaction WLK Common Stock Sale -$271K -3K -0.65% $90.47 460K Dec 1, 2021 Direct F2
transaction WLK Common Stock Sale -$536K -5.84K -1.27% $91.83 454K Dec 1, 2021 Direct F3
transaction WLK Common Stock Sale -$390K -4.2K -0.92% $92.78 450K Dec 1, 2021 Direct F4
transaction WLK Common Stock Sale -$404K -4.3K -0.96% $93.98 446K Dec 1, 2021 Direct F5
transaction WLK Common Stock Sale -$359K -3.79K -0.85% $94.80 442K Dec 1, 2021 Direct F6
holding WLK Common Stock 93.4M Dec 1, 2021 TTWF LP & TTWF GP LLC F8

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WLK Employee Option (right to buy) Options Exercise $0 -30.8K -50% $0.00 30.8K Dec 1, 2021 Common Stock 30.8K $30.05 Direct F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $89.12 to $90.10, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $90.14 to $91.13, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $91.29 to $92.29, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $92.31 to $93.26, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $93.41 to $94.41, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote
F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $94.43 to $95.36, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote
F7 The stock options are excercisable in three equal installments on February 17, 2013, 2014 and 2015.
F8 93,405,554 shares of Issuer are held through TTWF LP, a Delaware limited partnership, and TTWF GP LLC, a Delaware limited liability company and the general partner of TTWF LP. Two trusts for the benefit of members of the Chao family, including the reporting person, are the managers of TTWFGP LLC. The limited partners of TTWF LP are five trusts, principally for the benefit of members of the Chao family, including the reporting person, and two corporations owned, indirectly or directly, by certain of these trusts and by other entities owned by members of the Chao family, including the reporting person. The reporting person shares investment and voting power with respect to the shares beneficially owned by TTWF LP and TTWFGP LLC. The reporting person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.