Officials from Northwest Bancshares, the holding company of Northwest Bank, had the honor of celebrating their 25th anniversary of trading on the NASDAQ Global Select Market by ringing the opening bell.

Ronald J. Seiffert, president and CEO of Northwest Bancshares, along with members of executive management and the company’s board of directors, rang the bell Monday.

David Wix, vice president of NASDAQ OMX, said Northwest has demonstrated a pattern of sustained expansion resulting from a balance of consistent internal growth and a series of successfully executed mergers and acquisitions since its inception.

Seiffert said he and the other Northwest Bancshares officials were honored to celebrate with NASDAQ.

“Our greatest strength has been and continues to be our people,” Seiffert said. “Collectively, we thank our shareholders for the confidence you’ve had in us over the last 25 years and look forward to delivering superior value over the next 25 years.”

Northwest Bank operates 172 full-service offices and 10 drive-through locations, including an office on Pittsburgh Road in Butler Township.