COMMUNITY FINANCIAL SYSTEM, INC. — Proxy Solicitation & Information Statement 2026

Mar 27, 2026

DEFA14A 1 ny20064673x2_defa14a.htm DEFA14A Licensed to: Broadridge Document created using Broadridge PROfile 26.3.2.5342 Copyright 1995 - 2026 Broadridge

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934 (Amendment No. )

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