Community Financial System, Inc.
US ˙ NYSE ˙ US2036071064

SecurityCBU / Community Financial System, Inc.
InstitutionCommunity Bank, N.A.
Latest Disclosed Ownership100,312 shares
Latest Disclosed Value $ 5,883,298
Community Bank, N.A. reports 2.15% decrease in ownership of CBU / Community Financial System, Inc.

On May 12, 2026 - Community Bank, N.A. filed a 13F-HR form disclosing ownership of 100,312 shares of Community Financial System, Inc. (US:CBU) valued at $5,883,299 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 102,512 shares of Community Financial System, Inc.. This represents a change in shares of -2.15% during the quarter. The current value of the position is $6,171,194 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)
2026-05-12 2026-03-31 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 100,312 -2,200 -2.15 5,883 -0.08 0.7003
2026-02-04 2025-12-31 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 102,512 -16,056 -13.54 5,888 -15.30 0.6959
2025-11-14 2025-09-30 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 118,568 283 0.24 6,953 3.36 0.8409
2025-07-25 2025-06-30 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 118,285 4,204 3.69 6,727 3.70 0.8846
2025-04-21 2025-03-31 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 114,081 -1,868 -1.61 6,487 -9.30 0.8696
2025-02-11 2024-12-31 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 115,949 -1,511 -1.29 7,152 4.85 0.9171
2024-11-14 2024-09-30 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 117,460 -610 -0.52 6,821 22.35 0.8603
2024-08-14 2024-06-30 13F COMMUNITY FINANCIAL SYS COMMON STOCK 203607106 118,070 -4,157 -3.40 5,574 -5.04 0.7337
2024-05-15 2024-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 122,227 -957 -0.78 5,871 -8.55 0.7705
2024-02-02 2023-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 123,184 -9,915 -7.45 6,419 14.26 0.8377
2023-11-14 2023-09-30 13F/A-1 COMMUNITY BK SYS COMMON STOCK 203607106 133,099 -855 -0.64 5,618 -10.53 0.7871
2023-08-01 2023-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 133,954 1,289 0.97 6,280 -9.82 0.8292
2023-04-20 2023-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 132,665 -1,233 -0.92 6,964 -17.38 0.9412
2023-01-31 2022-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 133,898 477 0.36 8,429 5.14 1.1739
2022-10-28 2022-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 133,421 -757 -0.56 8,016 -5.57 1.2234
2022-07-26 2022-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 134,178 -442 -0.33 8,489 -10.10 1.2153
2022-05-05 2022-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 134,620 -338 -0.25 9,443 -6.04 1.1654
2022-01-27 2021-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 134,958 -1,097 -0.81 10,050 7.96 1.1587
2021-10-28 2021-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 136,055 367 0.27 9,309 -9.30 1.1344
2021-08-03 2021-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 135,688 -1,189 -0.87 10,264 -2.27 1.2121
2021-05-04 2021-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 136,877 -2,000 -1.44 10,502 21.35 1.3119
2021-01-28 2020-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 138,877 -1,095 -0.78 8,654 13.55 1.1762
2020-11-03 2020-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 139,972 136,030 3,450.79 7,621 3,242.54 1.1517
2020-07-30 2020-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 3,942 0 0.00 228 -1.72 0.0383
2020-04-30 2020-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 3,942 0 0.00 232 -17.14 0.0501
2020-02-05 2019-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 3,942 342 9.50 280 26.13 0.0493
2019-10-24 2019-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 3,600 -600 -14.29 222 -19.86 0.0422
2019-07-26 2019-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 4,200 0 0.00 277 10.36 0.0533
2019-05-02 2019-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 4,200 -1,300 -23.64 251 -21.81 0.0507
2019-01-30 2018-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 5,500 -21,795 -79.85 321 -81.05 0.0714
2018-11-05 2018-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 27,295 -355 -1.28 1,694 3.74 0.3327
2018-07-12 2018-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 27,650 -4,624 -14.33 1,633 -5.50 0.3050
2018-05-03 2018-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 32,274 -22,438 -41.01 1,728 -41.24 0.3242
2018-02-06 2017-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 54,712 16,304 42.45 2,941 38.60 0.3146
2017-10-30 2017-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 38,408 7,680 24.99 2,122 22.87 0.2339
2017-08-03 2017-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 30,728 17,726 136.33 1,727 141.54 0.1866
2017-05-02 2017-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 13,002 4,102 46.09 715 30.00 0.1504
2017-01-30 2016-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 8,900 -2,200 -19.82 550 3.00 0.1206
2016-10-13 2016-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 11,100 -7,125 -39.09 534 -28.70 0.1218
2016-07-14 2016-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 18,225 -1,000 -5.20 749 1.90 0.1767
2016-04-20 2016-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 19,225 -129,620 -87.08 735 -87.63 0.1774
2016-02-03 2015-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 148,845 37,827 34.07 5,943 44.07 1.4373
2015-10-21 2015-09-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 111,018 -6,900 -5.85 4,125 -7.37 1.0667
2015-07-27 2015-06-30 13F COMMUNITY BK SYS COMMON STOCK 203607106 117,918 -1,300 -1.09 4,453 5.55 1.0553
2015-04-27 2015-03-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 119,218 -486,149 -80.31 4,219 -81.72 0.9828
2015-02-06 2014-12-31 13F COMMUNITY BK SYS COMMON STOCK 203607106 605,367 605,367 23,083 5.2327
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.