Mark A McCollum insider trades

Open-market stock purchases and sales by Mark A McCollum, Unknown at Westlake Corp, from SEC Form 4 filings since Feb 16, 2010.

Recent trades

DateStockTradeValue
Aug 14, 2026WLK Westlake CorpBought (not open market)—
Aug 8, 2026WLK Westlake CorpBought (not open market)—
Aug 8, 2026WLK Westlake CorpBought (not open market)—
Jun 3, 2026SDRL SEADRILL LtdBought (not open market)—
May 20, 2026OKE Oneok Inc /new/Bought (not open market)$170K
May 14, 2026SDRL Seadrill LtdBought (not open market)—
Jan 23, 2026OKE Oneok Inc /new/Bought (not open market)$56.7K

Companies traded

  • WLK Westlake Corp: other filings, last Aug 14, 2026
  • SDRL SEADRILL Ltd: other filings, last Jun 3, 2026
  • OKE Oneok Inc /new/: other filings, last May 20, 2026
  • MRO Marathon OIL Corp: other filings, last Nov 22, 2024
  • WFT Weatherford International plc: other filings, last Apr 24, 2019
  • AROC Archrock, Inc: other filings, last Apr 26, 2018
  • HAL Halliburton Co: 19 sales, last Feb 27, 2017
  • EXH Exterran Holdings Inc: other filings, last Mar 4, 2015

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