Community Financial System, Inc.
US ˙ NYSE ˙ US2036071064

SecurityCBU / Community Financial System, Inc.
InstitutionAmundi
Latest Disclosed Ownership8,972 shares
Latest Disclosed Value $ 526,208
Amundi reports 13.27% increase in ownership of CBU / Community Financial System, Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 8,972 shares of Community Financial System, Inc. (US:CBU) valued at $526,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,921 shares of Community Financial System, Inc.. This represents a change in shares of 13.27% during the quarter. The current value of the position is $551,957 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F COMMUNITY FINANCIAL SYSTEM I COM 203607106 8,972 1,051 13.27 526 15.86 0.0001
2026-02-17 2025-12-31 13F COMMUNITY FINANCIAL SYSTEM I COM 203607106 7,921 -1,250 -13.63 455 -16.08 0.0001
2025-11-14 2025-09-30 13F COMMUNITY FINANCIAL SYSTEM I COM 203607106 9,171 480 5.52 541 5.25 0.0002
2025-08-13 2025-06-30 13F COMMUNITY FINANCIAL SYSTEM I COM 203607106 8,691 -12,412 -58.82 514 -54.27 0.0002
2025-05-15 2025-03-31 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 21,103 -5,401 -20.38 1,124 -29.88 0.0004
2025-02-07 2024-12-31 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 26,504 17,254 186.53 1,603 204.75 0.0006
2024-11-13 2024-09-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 9,250 892 10.67 527 36.27 0.0002
2024-08-14 2024-06-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 8,358 -1,263 -13.13 386 -5.39 0.0001
2024-05-15 2024-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 9,621 2,678 38.57 409 17.24 0.0002
2024-02-14 2023-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 6,943 183 2.71 349 25.63 0.0002
2023-11-14 2023-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 6,760 -72 -1.05 277 -16.31 0.0001
2023-08-14 2023-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 6,832 -622 -8.34 331 -10.05 0.0002
2023-05-15 2023-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 7,454 7,454 368 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.