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SEC Form 4 · accession 0000723188-26-000100

COMMUNITY FINANCIAL SYSTEM, INC. · CBU

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Period of report
Jun 18, 2026
Accepted (ET)
Jun 18, 2026 · 3:41 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000723188

Table I — non-derivative securities

No Table I lines on this filing.

Table II — derivative securities

SecurityConv. / exercise priceDateCodeSharesA/DExercisableExpiresUnderlyingUnderlying sharesOwned afterD/I
Deferred Stock (Deferred Compensation)F1—Jun 18, 2026A320A——Common Stock320635D

Explanation of responses