InsiderTrades

Form 4 for CBU COMMUNITY FINANCIAL SYSTEM, INC.

Accepted 2025-03-20 00:00:00 ET · period of report 2025-03-18 · accession 0001127602-25-010083 · 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 2025-03-20 2025-03-19 CBU Bolus Mark J. Dir M - OptEx $0.00 +1,430 103.8K +1% $0
D 2025-03-20 2025-03-18 CBU Bolus Mark J. Dir A - Grant $0.00 +1,225 3,898 +46% $0
D 2025-03-20 2025-03-19 CBU Bolus Mark J. Dir M - OptEx $0.00 -1,430 2,467 -37% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-03-19 M A 1,430 $0.00 103,815.70 D — — (F1) On March 19, 2025, the reporting person's phantom stock units were settled for 1,430 shares of Community Financial System, Inc. common stock, and .3732 shares were settled in cash at the price of $58.10 per share. (F2) Includes 616.63 shares acquired on January 10, 2025 pursuant to the Community Financial System, Inc. Dividend Reinvestment Plan.
2 Derivative Phantom Stock (Deferred Stock Units) 2025-03-18 A A 1,225 $0.00 3,897.79 D — · — to — 1,225 Common Stock (F5) The reporting person has received deferred stock units under the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the "Plan"). Each phantom stock unit which represents a deferred stock unit is the economic equivalent of one share of Community Financial System, Inc. common stock and will be settled in common stock at a predetermined date.
3 Derivative Phantom Stock (Deferred Stock Units) 2025-03-19 M D 1,430 $0.00 2,467.41 D — · — to — 1,430 Common Stock (F5) The reporting person has received deferred stock units under the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the "Plan"). Each phantom stock unit which represents a deferred stock unit is the economic equivalent of one share of Community Financial System, Inc. common stock and will be settled in common stock at a predetermined date.