Westlake Corporation
US ˙ NYSE ˙ US9604131022

SecurityWLK / Westlake Corporation
InsiderMichael J Graff
This page shows the track record and history of Graff Michael J insider trades in Westlake Corporation. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Michael J Graff in WLK / Westlake Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WLK / Westlake Corporation Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Michael J Graff in WLK / Westlake Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WLK / Westlake Corporation Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2025-08-11 2025-08-09 4 Graff Michael J WLK Common Stock M - Exercise D 1,128 21,142
2024-08-12 2024-08-11 4 Graff Michael J WLK Common Stock M - Exercise D 1,136 20,014
2023-08-14 2023-08-12 4 Graff Michael J WLK Common Stock M - Exercise D 1,446 18,878
2022-08-15 2022-08-13 4 Graff Michael J WLK Common Stock M - Exercise D 1,763 17,432
2021-08-16 2021-08-14 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -2,400 0
2021-08-16 2021-08-14 4 Graff Michael J WLK Common Stock M - Exercise D 2,400 15,669
2021-08-16 2021-08-13 4 Graff Michael J WLK Restricted Stock Units A - Award D 1,763 1,763
2020-08-17 2020-08-16 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -2,387 0
2020-08-17 2020-08-16 4 Graff Michael J WLK Common Stock M - Exercise D 2,387 13,269
2020-08-17 2020-08-14 4 Graff Michael J WLK Restricted Stock Units A - Award D 2,400 2,400
2019-08-19 2019-08-17 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -1,409 0
2019-08-19 2019-08-17 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -1,003 0
2019-08-19 2019-08-17 4 Graff Michael J WLK Common Stock M - Exercise D 1,409 10,882
2019-08-19 2019-08-17 4 Graff Michael J WLK Common Stock M - Exercise D 1,003 9,473
2019-08-19 2019-08-16 4 Graff Michael J WLK Restricted Stock Units A - Award D 2,387 2,387
2019-05-20 2019-05-18 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -103 0
2019-05-20 2019-05-18 4 Graff Michael J WLK Common Stock M - Exercise D 103 8,470
2018-08-22 2018-08-21 4 Graff Michael J WLK Restricted Stock Units M - Exercise D 603 0
2018-08-22 2018-08-21 4 Graff Michael J WLK Common Stock M - Exercise D 603 8,367
2018-08-20 2018-08-18 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -1,721 0
2018-08-20 2018-08-18 4 Graff Michael J WLK Common Stock M - Exercise D 1,721 7,764
2018-08-20 2018-08-17 4 Graff Michael J WLK Restricted Stock Units A - Award D 1,409 1,409
2018-08-20 2018-08-17 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -1,003 1,003
2018-08-20 2018-08-17 4 Graff Michael J WLK Common Stock M - Exercise D 1,003 6,043
2018-05-21 2018-05-18 4 Graff Michael J WLK Restricted Stock Units A - Award D 103 103
2017-08-22 2017-08-22 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -357 0
2017-08-22 2017-08-22 4 Graff Michael J WLK Common Stock M - Exercise D 357 5,040
2017-08-22 2017-08-21 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -603 603
2017-08-22 2017-08-21 4 Graff Michael J WLK Common Stock M - Exercise D 603 4,683
2017-08-21 2017-08-18 4 Graff Michael J WLK Restricted Stock Units A - Award D 1,721 1,721
2017-08-17 2017-08-17 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -1,003 2,006
2017-08-17 2017-08-17 4 Graff Michael J WLK Common Stock M - Exercise D 1,003 4,080
2016-08-24 2016-08-23 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -588 0
2016-08-24 2016-08-23 4 Graff Michael J WLK Common Stock M - Exercise D 588 3,077
2016-08-24 2016-08-22 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -357 357
2016-08-24 2016-08-22 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -603 1,206
2016-08-24 2016-08-22 4 Graff Michael J WLK Common Stock M - Exercise D 357 2,489
2016-08-24 2016-08-22 4 Graff Michael J WLK Common Stock M - Exercise D 603 2,132
2016-08-19 2016-08-17 4 Graff Michael J WLK Restricted Stock Units A - Award D 3,009 3,009
2015-08-25 2015-08-21 4 Graff Michael J WLK Restricted Stock Units A - Award D 1,809 1,809
2015-08-25 2015-08-23 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -586 588
2015-08-25 2015-08-23 4 Graff Michael J WLK Common Stock M - Exercise D 586 1,529
2015-08-25 2015-08-22 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -357 714
2015-08-25 2015-08-22 4 Graff Michael J WLK Common Stock M - Exercise D 357 943
2015-02-20 2014-08-23 4 Graff Michael J WLK Restricted Stock Units M - Exercise D -586 1,174
2015-02-20 2014-08-23 4 Graff Michael J WLK Common Stock M - Exercise D 586 586
2014-08-26 2014-08-22 4 Graff Michael J WLK Restricted Stock Units A - Award D 1,071 1,071
2013-08-27 2013-08-23 4 Graff Michael J WLK Restricted Stock Units A - Award D 880 880
P
Åbent marked eller privat køb af ikke-afledte eller afledte værdipapirer
S
Åbent marked eller privat salg af ikke-afledte eller afledte værdipapirer
A
Tildeling, tildeling eller anden erhvervelse af værdipapirer fra virksomheden (såsom en option)
C
Konvertering af derivat
D
Salg eller overførsel af værdipapirer tilbage til virksomheden
F
Betaling af udnyttelseskurs eller skatteforpligtelse ved brug af en del af værdipapirer modtaget fra selskabet
G
Gave af værdipapirer af eller til insideren
K
Aktieswaps og lignende sikringstransaktioner
M
Udnyttelse eller konvertering af afledt værdipapir modtaget fra virksomheden (såsom en option)
V
En transaktion rapporteret frivilligt på formular 4
J
Andet (ledsaget af en fodnote, der beskriver transaktionen)