Zions Bancorporation announced on 22 December 2025 that Nathan Callister will become the next President and Chief Executive Officer of Zions Bank, with the appointment taking effect in 2026. Callister will succeed Paul Burdiss, who is retiring from the role he has held at Zions Bank after a career that included leading the subsidiary's commercial banking operations through a period of significant change in the broader US regional banking environment. The announcement was made through a press release issued by Zions Bancorporation, the parent holding company listed on Nasdaq.
Burdiss entered into a Retirement and Consulting Agreement effective 20 December 2025, a formal arrangement that will allow him to remain available to support the organisation and assist the incoming leadership team during a defined transition period. Such consulting arrangements have become a widely adopted succession tool at US bank holding companies, where regulators and boards prioritise orderly transitions that minimise disruption to client relationships, operational continuity and institutional knowledge retention.
CALLISTER RISES FROM COMMERCIAL BANKING LEADERSHIP
Nathan Callister served most recently as Executive Vice President and Head of Commercial Banking at Zions, a position that placed him at the centre of the bank's most strategically important business unit. Commercial banking, which serves mid-sized companies and business clients across Zions Bank's core markets in Utah and Idaho, has historically been the engine of loan growth and relationship depth at the institution. His elevation to the chief executive position follows a pattern common in regional US banking, where the head of commercial banking is frequently identified as the most natural candidate for the top role, given that the division's performance directly determines credit quality, net interest income and client retention across the organisation.
Zions Bank operates as one of several distinct banking subsidiaries within the Zions Bancorporation structure, which also operates chartered banks in Nevada, California, Texas, Colorado, Arizona, New Mexico and Washington under different brand names. Each subsidiary is led by its own chief executive and operates with a degree of autonomy in its local markets, while sharing group-level infrastructure and benefiting from the holding company's capital and funding capabilities. The appointment of Callister therefore represents a leadership change at the Zions Bank subsidiary level, with the most direct implications for the Utah and Idaho markets where that entity concentrates its commercial and retail banking activities.
BURDISS TO REMAIN AVAILABLE THROUGH CONSULTING AGREEMENT
The retirement and consulting arrangement agreed with Burdiss provides a structural mechanism for preserving institutional continuity during the handover period. For a regional bank where long-standing client relationships and deep community ties are a source of competitive advantage, the ability to manage a chief executive transition in an orderly and well-signalled manner matters both operationally and reputationally. Burdiss's consulting agreement ensures that key clients and business partners have the opportunity to be introduced to incoming leadership in a structured way, reducing the risk of relationship disruption during the change.
The announcement was timed just before the Christmas and new year period, a scheduling choice that gives Callister and the broader leadership team time to prepare for the formal commencement of his tenure in 2026 without the immediate pressure of a live business calendar. Zions Bancorporation's press release highlighted the leadership development and succession planning processes that had identified Callister as the right candidate for the role, describing the transition as a reflection of the organisation's commitment to planned and prepared executive succession. The bank did not disclose the precise date in 2026 on which Callister's appointment as President and CEO will take formal effect.