Columbia Financial receives stockholder and depositor approval for conversion and Northfield acquisition

Columbia Financial, Inc.

• Stockholders approved Plan of Conversion and Reorganization and acquisition of Northfield Bancorp at June 25, 2026 annual meeting.
• Depositors of Columbia Bank MHC approved the conversion at a special meeting on June 29, 2026.
• Subscription offering received approximately $1.1 billion, excluding ESOP, with resolicitation concluding June 30, 2026.
• Firm commitment underwritten offering expected week of July 6, 2026 at $10 per share; Keefe Bruyette & Woods leads.
• Completion requires final regulatory approvals and sale of at least 142,375,000 shares including Northfield merger consideration.