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TransAlta Announces Executive Leadership Transition; CFO Joel Hunter to Step Up as CEO

Apr 20, 2026 11:38 UTC
TAC
Short term

TransAlta Corporation has appointed current CFO Joel Hunter as President and CEO following the retirement of John Kousinioris. The company also named Mike Politeski as the new Chief Financial Officer and Grant Arnold as Chief Commercial Officer.

  • Joel Hunter becomes CEO effective April 30
  • John Kousinioris retires from the CEO position
  • Mike Politeski joins as CFO effective May 1
  • Grant Arnold appointed Chief Commercial Officer effective May 6
  • Politeski brings 25+ years of experience from Veren Inc.

TransAlta Corporation (TAC), the Canadian power generation firm, announced a significant overhaul of its executive leadership team on Monday. The company will transition its top leadership roles over the coming weeks to ensure continuity in its operational and financial strategies. The most prominent change is the appointment of Joel Hunter, the current Chief Financial Officer, to the role of President and Chief Executive Officer. Hunter will officially assume the position on April 30, succeeding John Kousinioris, who is retiring from the company. To fill the vacancy created by Hunter's promotion, TransAlta has named Mike Politeski as the new Chief Financial Officer and Executive Vice President of Finance, effective May 1. Politeski brings over 25 years of industry experience, having previously served as Senior Vice President of Finance and Treasurer at Veren Inc., with expertise spanning capital markets, risk, and financial reporting. In a further expansion of the leadership team, Grant Arnold has been appointed as Chief Commercial Officer and Executive Vice President, effective May 6. Following the announcement, shares of TAC were trading at $12.62 in pre-market activity on the New York Stock Exchange, reflecting a slight decrease of 0.32%. The market reaction remains muted as investors digest the leadership transition.

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