Company: NWBI
Filing Date: 2025-02-20
Form Type: S-4/A
Source: 0001193125-25-030716
Chunk: 2

Company: Northwest Bancshares, Inc.
Filing Date: 2025-02-20
Form: S-4/A
Chunk 2
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PROSPECTUS DATED FEBRUARY 20, 2025, SUBJECT TO COMPLETION

| Prospectus of              
 Northwest Bancshares, Inc. |     | Proxy Statement of        
 Penns Woods Bancorp, Inc. |

To the Shareholders of Penns Woods Bancorp, Inc. MERGER PROPOSAL — YOUR VOTE IS VERY IMPORTANT Northwest Bancshares, Inc. (“Northwest”) and Penns Woods Bancorp, Inc. (“Penns Woods”), have entered into an Agreement and Plan of Merger dated as of December 16, 2024 (the “Merger Agreement”), which provides for the merger of Penns Woods with and into Northwest, with Northwest being the surviving entity (the “Merger”). Consummation of the Merger is subject to certain conditions, including, but not limited to, obtaining the requisite vote of the shareholders of Penns Woods and the approval of the Merger by various regulatory agencies. The Merger will bring together two like-minded institutions that will provide a path for the long-term success of the combined company, employees, customers, and shareholders. The Merger will allow Northwest to continue to build on its history of community-focused banking, and will deliver greater value to customers, employees, communities, and shareholders. As a result of the Merger, the expansion will capitalize on Northwest’s established brand presence, and will position the combined company to unlock new growth opportunities. The Merger will provide increased scale and capabilities to the customers of Penns Woods, and will provide existing Penns Woods employees to advance their careers as part of a larger organization. Under the terms of the Merger Agreement, shareholders of Penns Woods will be entitled to receive from Northwest, after the Merger is completed, merger consideration payable in the form of Northwest common stock to be calculated as set forth in the Merger Agreement. At the effective time of the Merger, each share of Penns Woods common stock will be converted into the right to receive 2.385 shares of Northwest common stock. Holders of Northwest common stock will continue to own their existing shares of Northwest common stock. Northwest common stock is are traded on the Nasdaq Global Select Market ®under the symbol “NWBI.” On December 16, 2024, the date of execution of the Merger Agreement, the closing price of Northwest common stock was $14.44 per share. On February 18, 2025, the closing price of Northwest common stock was $13.03 per share. Penns