Mark Steven Bender insider trades

Open-market stock purchases and sales by Mark Steven Bender, EVP & CFO at Westlake Corp, from SEC Form 4 filings since Jan 4, 2010.

Track record: 50% of 4 scored buys are up 5% or more since purchase, averaging +14%.

Recent trades

DateStockTradeValue
May 13, 2026WLK Westlake CorpSold (not open market)$514K
May 12, 2026WLK Westlake CorpBought (not open market)—
Mar 27, 2026WLK Westlake CorpSold$1.8M
Feb 27, 2026WLK Westlake CorpSold (not open market)$1.2M
Feb 27, 2026WLK Westlake CorpSold$1.7M
Feb 27, 2026WLK Westlake CorpSold$42.7K
Feb 27, 2026WLK Westlake CorpBought (not open market)—
Feb 27, 2026WLK Westlake CorpBought (not open market)—
Feb 20, 2026WLK Westlake CorpSold (not open market)$41.9K
Feb 20, 2026WLK Westlake CorpBought (not open market)—
Feb 20, 2026WLK Westlake CorpBought (not open market)—
Feb 19, 2026WLK Westlake CorpBought (not open market)—
Feb 18, 2026WLK Westlake CorpSold (not open market)$120K
Feb 17, 2026WLK Westlake CorpBought (not open market)—

Companies traded

  • WLK Westlake Corp: 90 sales, last May 13, 2026
  • WLKP Westlake Chemical Partners LP: 4 buys, last Mar 13, 2020

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