Community Financial System, Inc.
US ˙ NYSE ˙ US2036071064

SecurityCBU / Community Financial System, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership15,177 shares
Latest Disclosed Value $ 890
Amalgamated Bank reports 1.20% decrease in ownership of CBU / Community Financial System, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 15,177 shares of Community Financial System, Inc. (US:CBU) valued at $890,131 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 15,361 shares of Community Financial System, Inc.. The current value of the position is $933,689 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)
2026-05-08 2026-03-31 13F COMMUNITY FINL SYS INC COM COM 203607106 15,177 -184 -1.20 1 0.0068
2026-02-05 2025-12-31 13F COMMUNITY FINL SYS INC COM COM 203607106 15,361 66 0.43 1 0.0064
2025-10-29 2025-09-30 13F COMMUNITY FINL SYS INC COM COM 203607106 15,295 278 1.85 1 0.0064
2025-08-04 2025-06-30 13F COMMUNITY FINL SYS INC COM COM 203607106 15,017 48 0.32 1 0.0066
2025-04-25 2025-03-31 13F COMMUNITY FINL SYS INC COM COM 203607106 14,969 -411 -2.67 1 0.0073
2025-02-04 2024-12-31 13F COMMUNITY FINL SYS INC COM COM 203607106 15,380 -67 -0.43 1 0.0078
2024-10-30 2024-09-30 13F COMMUNITY FINL SYS INC COM COM 203607106 15,447 -695 -4.31 1 0.0074
2024-08-12 2024-06-30 13F COMMUNITY FINL SYS INC COM COM 203607106 16,142 -772 -4.56 1 0.0065
2024-04-23 2024-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 16,914 -2,998 -15.06 1 -100.00 0.0069
2024-02-06 2023-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 19,912 -878 -4.22 1 0.0083
2023-11-08 2023-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 20,790 -756 -3.51 1 -100.00 0.0075
2023-08-11 2023-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 21,546 -1,186 -5.22 1 0.00 0.0082
2023-05-02 2023-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 22,732 -1,751 -7.15 1 0.00 0.0102
2023-02-10 2022-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 24,483 -60 -0.24 2 -99.93 0.0137
2022-11-09 2022-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 24,543 375 1.55 1,475 -3.53 0.0142
2022-08-15 2022-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 24,168 96 0.40 1,529 -9.47 0.0143
2022-08-25 2022-03-31 13F/A-1 COMMUNITY BANK SYSTEM COM 203607106 24,072 -1,153 -4.57 1,689 -10.11 0.0131
2022-06-30 2022-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 24,072 -1,153 1,689 0.0134
2022-02-15 2021-12-31 13F/A-1 COMMUNITY BANK SYSTEM COM 203607106 25,225 -568 -2.20 1,879 6.46 0.0139
2022-02-15 2021-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 25,225 -568 1,879 0.0139
2021-10-29 2021-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 25,793 -667 -2.52 1,765 -11.84 0.0149
2021-08-16 2021-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 26,460 21,732 459.64 2,002 451.52 0.0160
2021-05-13 2021-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 4,728 -316 -6.26 363 15.61 0.0136
2021-02-12 2020-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 5,044 46 0.92 314 15.44 0.0119
2020-10-30 2020-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 4,998 110 2.25 272 -2.51 0.0118
2020-08-10 2020-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 4,888 -3,433 -41.26 279 -42.94 0.0129
2020-05-13 2020-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 8,321 -244 -2.85 489 -19.57 0.0120
2020-02-13 2019-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 8,565 712 9.07 608 25.62 0.0112
2019-11-13 2019-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 7,853 -176 -2.19 484 -8.51 0.0102
2019-08-14 2019-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 8,029 581 7.80 529 18.88 0.0123
2019-05-15 2019-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 7,448 250 3.47 445 5.95 0.0108
2019-02-15 2018-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 7,198 -93 -1.28 420 -5.62 0.0119
2018-11-14 2018-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 7,291 -52 -0.71 445 2.53 0.0110
2018-07-18 2018-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 7,343 338 4.83 434 15.73 0.0106
2018-05-22 2018-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 7,005 -97 -1.37 375 -1.83 0.0099
2018-02-13 2017-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 7,102 481 7.26 382 4.37 0.0103
2017-11-09 2017-09-30 13F COMMUNITY BANK SYSTEM COM 203607106 6,621 -84 -1.25 366 -2.14 0.0114
2017-08-10 2017-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 6,705 865 14.81 374 16.51 0.0123
2017-05-12 2017-03-31 13F COMMUNITY BANK SYSTEM COM 203607106 5,840 -4 -0.07 321 -11.08 0.0160
2017-02-14 2016-12-31 13F COMMUNITY BANK SYSTEM COM 203607106 5,844 700 13.61 361 46.15 0.0163
2016-11-15 2016-09-30 13F/A-1 COMMUNITY BANK SYSTEM COM 203607106 5,144 11 0.21 247 6.47 0.0143
2016-08-16 2016-06-30 13F COMMUNITY BANK SYSTEM COM 203607106 5,133 5,133 232 0.0134
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.