InsiderTrades

Form 4 for CBU COMMUNITY FINANCIAL SYSTEM, INC.

Accepted 2026-02-03 00:00:00 ET · period of report 2026-01-30 · accession 0000723188-26-000003 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-02-03 2026-01-30 CBU Abdo Michael N EVP, GC F - Tax $62.44 -1,763 7,254 -20% -$110.1K
D 2026-02-03 2026-01-30 CBU Abdo Michael N EVP, GC M - OptEx $38.02 +2,287 9,017 +34% +$87.0K
D 2026-02-03 2026-01-30 CBU Abdo Michael N EVP, GC M - OptEx $0.00 -2,287 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-01-30 F D 1,763 $62.44 7,254 D — —
2 Common Common Stock 2026-01-30 M A 2,287 $38.02 9,017 D — —
3 Derivative Stock Option 2026-01-30 M D 2,287 $0.00 0 D $38.02 · — to 2026-03-16 2,287 Common Stock (F2) The option vested ratably on March 16, 2017, 2018, 2019, 2020, and 2021.