WAL · Western Alliance Bancorporation

Western Alliance Bancorporation (NYSE:WAL): SECOND QUARTER 2026 FINANCIAL RESULTS Quarter Highlights: Net income Diluted earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $268.8 million $2.36 $412.4 million 3.53% 58.0% $69.11 48.9%, adjusted for deposit costs1 $63.24, excluding goodwill and intangibles1 CEO COMMENTARY: "Western Alliance generated solid financial results in the second quarter, highlighted by strong, pre-provision net revenue1, diversified and robust loan growth, the launch of our deposit optimization strategy, and stable asset quality," said Kenneth A. Vecchione, Chairman, President and Chief Executive Officer. "Earnings per share of $2.36, rose 6.3% from an adjusted EPS2 of $2.22 in the prior quarter. Our results were driven by quarterly HFI loan growth of $1.8 billion, which reflected ongoing momentum in our C&I businesses. Net interest income rose 4% from the prior quarter, primarily from a $2.7 billion increase in

Western Alliance Bancorporation (NYSE:WAL): Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $189.2 million $1.65 $444.5 million 3.54% 55.8% $67.03 $251.3 million, as adjusted1 $2.22, as adjusted1 $394.0 million, as adjusted1 47.5%, adjusted for deposit costs1 $61.14, excluding goodwill and intangibles1 CEO COMMENTARY: Western Alliance achieved solid first quarter results featuring robust deposit growth, net interest margin expansion, and core earnings momentum, while taking decisive action to resolve two fraud-related credits, partially offset by gains from a series of well-executed security sales,” said Kenneth A. Vecchione, President and Chief Executive Officer. “Continued business strength drove quarterly loan and deposit growth

Complaint Filed this Morning, Initiating Legal Action to Collect Amount Owed Charging-Off Remaining LAM I Loan Balance of $126.4 Million Financial Impact Substantially Mitigated Through Realization of Securities Sale Gains & Expense Reductions Western Alliance Bancorporation (the “Company”) today announced that it has been informed by Jefferies Financial Group (“Jefferies”) that payments of $126.4 million owed to Western Alliance Bank (“Bank”) pursuant to a forbearance agreement will not be paid as agreed. Earlier this morning, the Bank and its Collateral Agent filed a Complaint in New York Supreme Court against Jefferies, Leucadia Asset Management LLC (“LAM”), and affiliates (collectively, “Defendants”) alleging breach of contract and fraud for Defendants’ conduct related to a commercial loan collateralized by accounts receivable purchased from First Brands Group. In September 2025, the Bank learned of failures by LAM’s servicer, including allowing UCC financing statements to

Leadership to discuss strategy, performance priorities and long-term outlook during live webcast Western Alliance Bancorporation (NYSE: WAL) announced today that it will host its 2026 Investor Day on Tuesday, May 12, 2026, in New York City. During the event, members of the company’s executive leadership team will provide an overview of Western Alliance’s strategy, operating priorities and financial outlook, followed by a question-and-answer session. Event details Date: Tuesday, May 12, 2026 Time: 8:30 a.m. Eastern Time Location: New York City Attendance: In-person attendance is by invitation only A detailed agenda, presentation materials and a live webcast will be available on the day of the event at investors.westernalliancebancorporation.com under Events & Presentations. A replay of the webcast and related materials will be archived on the site following the event. Questions may be directed to Western Alliance Bank Investor Relations at [email protected] .

Western Alliance Bancorporation (NYSE:WAL): Quarter Highlights: Net income Earnings per share PPNR1 Net interest margin Efficiency ratio1 Book value per common share $293.2 million $2.59 $428.7 million 3.51% 55.7% $67.20 46.5%1, adjusted for deposit costs $61.291, excluding goodwill and intangibles CEO COMMENTARY: “Western Alliance delivered exceptional results to close out 2025, highlighted by record net interest income, revenues, and PPNR¹. Outstanding loan and deposit growth, gathering strength in commercial banking non-interest income, improved efficiency, and a steady net interest margin were key factors behind our solid operating leverage and strong financial performance. These results position us to sustain a strong earnings trajectory in 2026," said Kenneth A. Vecchione, President and Chief

Veteran financial services security leader strengthens enterprise risk management, regulatory alignment and cybersecurity governance Western Alliance Bank (NYSE:WAL) today announced that it has appointed Stephen McMaster as Chief Information Security Officer. McMaster is a seasoned financial services technology and security executive with more than 25 years of experience leading cybersecurity, risk management and technology control functions at large, complex financial institutions. He will be based in Phoenix. Stephen McMaster, Chief Information Security Officer, Western Alliance Bank McMaster brings deep expertise in building and governing enterprise information security programs that support operational resilience, regulatory compliance and safe, sustainable growth. His background includes oversight of cybersecurity strategy, technology risk and control frameworks in highly regulated banking environments. As Chief Information Security Officer, McMaster leads Western Alliance’s

Western Alliance Bancorporation (NYSE: WAL) announced today that it plans to release its fourth quarter and full year 2025 financial results after the market closes on Monday, January 26, 2026. Ken Vecchione, President and CEO, Dale Gibbons, Vice Chairman and Chief Banking Officer, Deposit Initiatives and Innovation, and Vishal Idnani, Chief Financial Officer, will host a conference call at 12:00 p.m. ET on Tuesday, January 27, 2026 to discuss the Company's performance. Participants may access the call by dialing 1-833-470-1428 using the access code 336835 or via live audio webcast using the website link: https://events.q4inc.com/attendee/372994694 . The webcast is also available through the Company's website at www.westernalliancebancorporation.com . Participants should log in at least 15 minutes early to receive instructions. The call will be recorded and made available for replay January 27 th after 3:00 p.m. ET until February 3 rd at 1:00 p.m. ET by dialing 1-866-813-9403 using