During this season of giving, Old National Bank (ONB) invites the community to join in celebrating Client Appreciation Week, taking place during business hours October 5-10, 2026, at all local banking centers.

Throughout the week, ONB banking centers will host a variety of activities including:

“We’re excited to welcome our clients and neighbors into our banking centers for a week of celebration and connection. Whether you’re a long-time client or new to ONB, we hope you’ll stop by and take part.”

Clients can enter the prize drawing by visiting any Old National banking center during the event week. *See below for additional details and official rules.

ABOUT OLD NATIONAL

Old National Bancorp (NASDAQ: ONB) is the holding company of Old National Bank. As the fifth largest commercial bank headquartered in the Midwest, Old National proudly serves clients primarily in the Midwest and Southeast. With approximately $73 billion of assets and $39 billion of assets under management, Old National ranks among the top 25 banking companies headquartered in the United States. Tracing our roots to 1834, Old National focuses on building long-term, highly valued partnerships with clients while also strengthening and supporting the communities we serve. In addition to providing extensive services in consumer and commercial banking, Old National offers comprehensive wealth management and capital markets services. For more information and financial data, please visit Investor Relations at oldnational.com. In 2026, Points of Light named Old National to “The Civic 50” for the third consecutive year – an honor recognizing the 50 most community-minded companies in the United States – and also named Old National the Financials Sector Leader among nominated banks and financial services organizations.

*ABOUT PRIZE DRAWING

NO PURCHASE NECESSARY TO WIN. A PURCHASE WILL NOT INCREASE YOUR ODDS OF WINNING.

Open to legal residents of Illinois, Indiana, Iowa, Michigan, Minnesota, Tennessee, and Wisconsin who are 18 years of age or older at time of entry. Void where prohibited by law. Limit one (1) entry per person per day, regardless of entry method. Entries may be submitted in person by scanning the contest QR code and completing the entry form at participating Old National banking centers between Monday, October 5 and Saturday, October 10, 2026, during normal business hours. To enter by mail, send a 3″x5″ card including your name, phone number, and mailing address to: Old National Bank: Client Appreciation Week Sweepstakes, 1 Main Street, Evansville, IN 47708. Mail-in entries must be postmarked by October 10, 2026 and received by October 23, 2026. One (1) prize of $10,000, one (1) prize of $2,500, and one (1) prize of $1,000 will be awarded. Odds of winning depend on the total number of eligible entries received. Drawing will be held on October 26, 2026. Winner need not be present to win and will be notified within ten (10) days of the drawing. All federal, state, and local taxes are the responsibility of the winner. Employees of Old National Bancorp, its affiliates, subsidiaries, and their immediate family members are not eligible. Sponsor: Old National Bank, 1 Main Street, Evansville, IN 47708. For complete Official Rules, visit oldnational.com/client-appreciation.