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United States
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 11-K
(Mark One)
☒ | ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
For the fiscal year ended December 31, 2025
OR
☐ | TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
For the transition period from _____ to _____
Commission File Number 001-13695
A. | Full title of the plan and the address of the plan, if different from that of the issuer named below: |
Community Financial System, Inc.
401(k) Employee Stock Ownership Plan
B. | Name of Issuer of the securities held pursuant to the plan and the address of its principal executive office. |
Community Financial System, Inc.
333 Butternut Drive
Syracuse, New York 13214
REQUIRED INFORMATION
Item 4. | Financial Statements and Supplemental Schedule for the Plan. |
The Community Financial System, Inc. 401(k) Employee Stock Ownership Plan (the “Plan”) is subject to the requirements of the Employee Retirement Income Security Act of 1974 (“ERISA”).
In lieu of the requirements of Items 1-3 of this Form, the Plan is filing the financial statements and supplemental schedule prepared in accordance with the financial reporting requirements of ERISA. The Plan financial statements for the years ended December 31, 2025 and 2024 and the supplemental schedule as of December 31, 2025 are included as Exhibit 99.1 to this report on Form 11-K and are incorporated herein by reference. The Plan financial statements and supplemental schedule have been examined by Dannible & McKee, LLP, Independent Registered Public Accounting Firm, and their report is included therein.
Exhibits
Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934, the trustee (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned, hereunto duly authorized.
| Community Financial System, Inc. |
| 401(k) Employee Stock Ownership Plan |
| |
| Community Bank, N. A., Trustee |
Dated: June 18, 2026 |
| /s/ Marya Burgio Wlos |
| Marya Burgio Wlos |
| Executive Vice President and Chief Financial Officer |
