EXHIBIT 99.1 PRESS RELEASE OF NORTHWEST BANCSHARES, INC. EARNINGS RELEASE FOR IMMEDIATE RELEASE Northwest Bancshares, Inc. Announces Third Quarter 2025 GAAP net income of $3 million, or$0.02 per diluted share Year to date EPS of $0.61 per diluted share, 15$168 million, 21% growth over prior year quarter Columbus, Ohio — October 27, 2025 Northwest Bancshares, Inc., (the "Company"), (Nasdaq: NWBI) announced net income for the quarter ended September 30, 20 ...