ASSOCIATED BANC-CORP

Exhibit 99.1

NEWS RELEASE Investor Contact:Ben McCarville, Senior Vice President, Director of Investor Relations 920-491-7059 Media Contact:Andrea Kozek, Vice President, Public Relations Senior Manager920-491-7518

Record Quarterly Net Interest Income Drives Associated Banc-Corp's Second Quarter 2025 Earnings per Common Share of $0.65

GREEN BAY, Wis. -- July 24, 2025 -- Associated Banc-Corp (NYSE: ASB) ("Associated" or "Company") today reported net income available to common equity ("earnings") of $108 million, or $0.65 per common share, for the quarter ended June 30, 2025. These amounts compare to earnings of $99 million, or $0.59 per common share, for the quarter ended March 31, 2025 and earnings of $113 million, or $0.74 per common share, for the quarter ended June 30, 2024.

“Midway through 2025, Associated Bank is seeing strong momentum from the strategic actions we’ve taken over the past several quarters,” said President & CEO Andy Harmening. “In the second quarter, we delivered over $350 million in additional C&I loan growth, another 7 basis points of margin expansion, and the best checking household growth we’ve seen since we began tracking a decade ago--all of which contributed to the strongest quarterly net interest income we've seen in company history. Importantly, we also delivered another 9 basis points of CET1 capital accretion and solid credit performance.”

“While uncertainty has been an ongoing theme at the macro level, we feel well-positioned to build on our momentum over the back half of the year thanks to our strengthened profitability profile, solid capital position, and disciplined approach to growth. We look forward to providing additional updates on our progress along the way."