LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
WLKCIK 0001262823

WESTLAKE CORP

115 transactions by 22 insiders, from December 10, 2025 to August 31, 2026.

Transactions
11522 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$10.2Mopen market
Net
−$10.2Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Mark Steven BenderCFO18——$3.6M
Albert ChaoChair16——$6.1M
John Tsung-chen ChaoDir8———
Robert F. BuesingerEVP8——$461K
Jeffrey Adam HolyVP8———
L. Benjamin EderingtonEVP7———
Scott Thomas SzwejbkaSVP7———
James ChaoChair7———
Roger A. CreggDir5———
Mark A. McCollumDir3———
R. Bruce NorthcuttDir3———
Jeffrey Wayne SheetsDir3———
Kimberly S. LubelDir3———
Michael J. GraffDir3———
David Tsung-Hung ChaoDir3———
Carolyn Chao SabatDir3———
Catherine T. ChaoDir3———
Jean-Marc GilsonCEO2———
Bhavesh Patel VDir2———
Brian John PowersSVP1———
Jonathan BakshtCFO1———
Tommy DarbyVP1———

All transactions

115 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Tommy DarbyVPDERIVAug 31A1,791$0.00—?
Jeffrey Wayne SheetsDirDERIVAug 14A2,184$0.00—?
Carolyn Chao SabatDirDERIVAug 14A2,184$0.00—?
Bhavesh Patel VDirDERIVAug 14A2,184$0.00—?
R. Bruce NorthcuttDirDERIVAug 14A2,184$0.00—?
Mark A. McCollumDirDERIVAug 14A2,184$0.00—?
Kimberly S. LubelDirDERIVAug 14A2,184$0.00—?
Michael J. GraffDirDERIVAug 14A2,184$0.00—?
David Tsung-Hung ChaoDirDERIVAug 14A2,184$0.00—?
Catherine T. ChaoDirDERIVAug 14A2,184$0.00—?
Roger A. CreggDirDERIVAug 14A2,184$0.00—?
Albert ChaoChairDERIVAug 11M38,873$0.00—?
Albert ChaoChairAug 11S31,384$80.42$2.5M
Albert ChaoChairAug 11S7,489$79.70$597K
Albert ChaoChairAug 11M38,873$61.87$2.4M
Jeffrey Wayne SheetsDirDERIVAug 8M2,168$0.00—?
Jeffrey Wayne SheetsDirAug 8M2,168——
Carolyn Chao SabatDirDERIVAug 8M2,168$0.00—?
Carolyn Chao SabatDirAug 8M2,168——
R. Bruce NorthcuttDirDERIVAug 8M2,168$0.00—?
R. Bruce NorthcuttDirAug 8M2,168——
Mark A. McCollumDirDERIVAug 8M2,168$0.00—?
Mark A. McCollumDirAug 8M2,168——
Kimberly S. LubelDirDERIVAug 8M2,168$0.00—?
Kimberly S. LubelDirAug 8M2,168——
Michael J. GraffDirDERIVAug 8M2,168$0.00—?
Michael J. GraffDirAug 8M2,168——
David Tsung-Hung ChaoDirDERIVAug 8M2,168$0.00—?
David Tsung-Hung ChaoDirAug 8M2,168——
Catherine T. ChaoDirDERIVAug 8M2,168$0.00—?
Catherine T. ChaoDirAug 8M2,168——
Roger A. CreggDirDERIVAug 8M2,168$0.00—?
Roger A. CreggDirAug 8M2,168——
Jonathan BakshtCFODERIVJun 15A20,580$0.00—?
Mark Steven BenderCFODERIVMay 12M13,164$0.00—?
Mark Steven BenderCFOMay 13F5,284$97.34$514K
Mark Steven BenderCFOMay 12M13,164$0.00—
Brian John PowersSVPDERIVApr 2A1,961$0.00—?
Robert F. BuesingerEVPMar 27S4,000$115.25$461K
Mark Steven BenderCFOMar 27S16,413$112.54$1.8M
Mark Steven BenderCFODERIVFeb 27M6,494$0.00—?
Mark Steven BenderCFODERIVFeb 27M6,199$0.00—?
Mark Steven BenderCFOFeb 27S421$101.52$43K
Mark Steven BenderCFOFeb 27S16,988$100.91$1.7M
Mark Steven BenderCFOFeb 27D12,693$98.20$1.2M
Mark Steven BenderCFOFeb 27M6,494$86.54$562K
Mark Steven BenderCFOFeb 27M6,199$65.81$408K
Bhavesh Patel VDirDERIVFeb 20A1,852$0.00—?
Scott Thomas SzwejbkaSVPDERIVFeb 20A3,983$0.00—?
Scott Thomas SzwejbkaSVPDERIVFeb 20A14,595$0.00—?
Scott Thomas SzwejbkaSVPFeb 20F91$94.10$9K
Scott Thomas SzwejbkaSVPFeb 19A365$0.00—
Jeffrey Adam HolyVPDERIVFeb 20A2,540$0.00—?
Jeffrey Adam HolyVPDERIVFeb 20A1,199$0.00—?
Jeffrey Adam HolyVPDERIVFeb 20A4,394$0.00—?
Jeffrey Adam HolyVPFeb 20F81$94.10$8K
Jeffrey Adam HolyVPFeb 19A264$0.00—
Jean-Marc GilsonCEODERIVFeb 20A29,784$0.00—?
Jean-Marc GilsonCEODERIVFeb 20A109,139$0.00—?
L. Benjamin EderingtonEVPDERIVFeb 20A7,002$0.00—?
L. Benjamin EderingtonEVPDERIVFeb 20A25,656$0.00—?
L. Benjamin EderingtonEVPFeb 20F357$94.10$34K
L. Benjamin EderingtonEVPFeb 19A1,425$0.00—
John Tsung-chen ChaoDirDERIVFeb 20A2,434$0.00—?
John Tsung-chen ChaoDirDERIVFeb 20A1,104$0.00—?
John Tsung-chen ChaoDirDERIVFeb 20A4,044$0.00—?
John Tsung-chen ChaoDirFeb 20F91$94.10$9K
John Tsung-chen ChaoDirFeb 19A213$0.00—
James ChaoChairDERIVFeb 20A7,472$0.00—?
James ChaoChairDERIVFeb 20A27,382$0.00—?
James ChaoChairFeb 20F1,569$94.10$148K
James ChaoChairFeb 19A3,884$0.00—
Albert ChaoChairDERIVFeb 20A14,945$0.00—?
Albert ChaoChairDERIVFeb 20A54,763$0.00—?
Albert ChaoChairFeb 20F2,501$94.10$235K
Albert ChaoChairFeb 19A6,193$0.00—
Robert F. BuesingerEVPDERIVFeb 20A5,281$0.00—?
Robert F. BuesingerEVPDERIVFeb 20A19,351$0.00—?
Robert F. BuesingerEVPFeb 20F326$94.10$31K
Robert F. BuesingerEVPFeb 19A1,301$0.00—
Mark Steven BenderCFODERIVFeb 20A7,747$0.00—?
Mark Steven BenderCFODERIVFeb 20A28,389$0.00—?
Mark Steven BenderCFOFeb 20F445$94.10$42K
Mark Steven BenderCFOFeb 19A1,777$0.00—
Scott Thomas SzwejbkaSVPDERIVFeb 17M977$0.00—?
Scott Thomas SzwejbkaSVPFeb 18F295$98.95$29K
Scott Thomas SzwejbkaSVPFeb 17M977$0.00—
Jeffrey Adam HolyVPDERIVFeb 17M706$0.00—?
Jeffrey Adam HolyVPFeb 18F213$98.95$21K
Jeffrey Adam HolyVPFeb 17M706$0.00—
L. Benjamin EderingtonEVPDERIVFeb 17M3,809$0.00—?
L. Benjamin EderingtonEVPFeb 18F978$98.95$97K
L. Benjamin EderingtonEVPFeb 17M3,809$0.00—
John Tsung-chen ChaoDirDERIVFeb 17M570$0.00—?
John Tsung-chen ChaoDirFeb 18F242$98.95$24K
John Tsung-chen ChaoDirFeb 17M570$0.00—
James ChaoChairDERIVFeb 17M10,382$0.00—?
James ChaoChairFeb 18F2,664$98.95$264K
James ChaoChairFeb 17M10,382$0.00—
Albert ChaoChairDERIVFeb 17M16,555$0.00—?
Albert ChaoChairFeb 18F5,089$98.95$504K
Albert ChaoChairFeb 17M16,555$0.00—
Robert F. BuesingerEVPDERIVFeb 17M3,478$0.00—?
Robert F. BuesingerEVPFeb 18F903$98.95$89K
Robert F. BuesingerEVPFeb 17M3,478$0.00—
Mark Steven BenderCFODERIVFeb 17M4,751$0.00—?
Mark Steven BenderCFOFeb 18F1,209$98.95$120K
Mark Steven BenderCFOFeb 17M4,751$0.00—
Albert ChaoChairDERIVDec 22M81,673$0.00—?
Albert ChaoChairDec 22S521$74.44$39K
Albert ChaoChairDec 22S30,604$73.80$2.3M
Albert ChaoChairDec 22S9,711$72.82$707K
Albert ChaoChairDec 22M81,673$44.42$3.6M
Roger A. CreggDirDERIVDec 10M1,339$0.00—?
Roger A. CreggDirDec 10M1,339——