Community Financial System, Inc.
US ˙ NYSE ˙ US2036071064

SecurityCBU / Community Financial System, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership11,438 shares
Latest Disclosed Value $ 671
Natixis Advisors, L.p. ownership in CBU / Community Financial System, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 11,438 shares of Community Financial System, Inc. (US:CBU) valued at $670,839 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 13, 2025 disclosing 0 shares of Community Financial System, Inc.. The current value of the position is $703,666 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)
2026-05-13 2026-03-31 13F COMMUNITY FINANCIAL SYSTEM I COM 203607106 11,438 11,438 1 0.0009
2025-11-13 2025-09-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 0 -12,073 -100.00 0 0.0000
2025-08-13 2025-06-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 12,073 -45 -0.37 1 0.0011
2025-05-08 2025-03-31 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 12,118 -2,009 -14.22 1 0.0013
2025-02-10 2024-12-31 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 14,127 639 4.74 1 0.0016
2024-11-06 2024-09-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 13,488 1,228 10.02 1 0.0015
2024-08-01 2024-06-30 13F COMMUNITY FINANCIAL SYSTEM COM 203607106 12,260 2,226 22.18 1 0.0013
2024-04-25 2024-03-31 13F COMMUNITY BK SYS COM 203607106 10,034 10,034 0 0.0011
2023-11-13 2023-09-30 13F COMMUNITY BK SYS COM 203607106 0 -10,832 -100.00 0 0.0000
2023-08-15 2023-06-30 13F COMMUNITY BK SYS COM 203607106 10,832 10,832 1 0.0016
2023-01-27 2022-12-31 13F CMNTY BK SYST COM 203607106 0 -11,151 -100.00 0 -100.00
2022-11-14 2022-09-30 13F CMNTY BK SYST COM 203607106 11,151 765 7.37 670 1.98 0.0028
2022-08-12 2022-06-30 13F COMMUNITY BK SYS COM 203607106 10,386 10,386 657 0.0029
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.