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  • Insider Ownership

Insider Trading & Ownership of MARK A. MCCOLLUM

Location
Houston, TX
Summary
The estimated net worth of MARK A. MCCOLLUM is at least $877,051 dollars as of 27 Jan 2026. MARK A. MCCOLLUM is the Director of WESTLAKE CORP and owns shares of WESTLAKE CORP (WLK) stock worth about $760.1K. MARK A. MCCOLLUM is the Director of Seadrill Ltd and owns shares of Seadrill Ltd (SDRL) stock worth about $60.2K. MARK A. MCCOLLUM is the Director of ONEOK INC /NEW/ and owns shares of ONEOK INC /NEW/ (OKE) stock worth about $56.7K.
Signature
/s/ Sarah M. Rechter Attorney-in-Fact for Mark A. McCollum
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Ownership of MARK A. MCCOLLUM

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
WLK WESTLAKE CORP Director $760,120 08 Aug 2025
SDRL Seadrill Ltd Director $60,225 14 May 2025
OKE ONEOK INC /NEW/ Director $56,706 23 Jan 2026
MRO MARATHON OIL CORP Director $0 22 Nov 2024

Insider Transactions Reported by MARK A. MCCOLLUM:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.