Insidervault
LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
Reporting ownerCIK 0001330417

Mark Steven Bender

18 transactions in one company, from February 17, 2026 to May 13, 2026.

Transactions
181 company
Bought · P
$0open market
Sold · S
$3.6Mopen market
Net
−$3.6Mnet selling

By company

Where this insider traded.

CompanyTickerTradesBoughtSold
WESTLAKE CORPWLK18—$3.6M

All transactions

18 in total, newest filings first.

CompanyTickerInsiderDateCodeSharesPriceValue
WESTLAKE CORPWLKMark Steven BenderCFODERIVMay 12M13,164$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFOMay 13F5,284$97.34$514K
WESTLAKE CORPWLKMark Steven BenderCFOMay 12M13,164$0.00—
WESTLAKE CORPWLKMark Steven BenderCFOMar 27S16,413$112.54$1.8M
WESTLAKE CORPWLKMark Steven BenderCFODERIVFeb 27M6,494$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFODERIVFeb 27M6,199$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFOFeb 27S421$101.52$43K
WESTLAKE CORPWLKMark Steven BenderCFOFeb 27S16,988$100.91$1.7M
WESTLAKE CORPWLKMark Steven BenderCFOFeb 27D12,693$98.20$1.2M
WESTLAKE CORPWLKMark Steven BenderCFOFeb 27M6,494$86.54$562K
WESTLAKE CORPWLKMark Steven BenderCFOFeb 27M6,199$65.81$408K
WESTLAKE CORPWLKMark Steven BenderCFODERIVFeb 20A7,747$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFODERIVFeb 20A28,389$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFOFeb 20F445$94.10$42K
WESTLAKE CORPWLKMark Steven BenderCFOFeb 19A1,777$0.00—
WESTLAKE CORPWLKMark Steven BenderCFODERIVFeb 17M4,751$0.00—?
WESTLAKE CORPWLKMark Steven BenderCFOFeb 18F1,209$98.95$120K
WESTLAKE CORPWLKMark Steven BenderCFOFeb 17M4,751$0.00—