Greene County Bancorp, Inc.
US ˙ NasdaqCM ˙ US3943571071

SecurityGCBC / Greene County Bancorp, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership50,966 shares
Latest Disclosed Value $ 1,142,148
Northern Trust Corp reports 3.28% increase in ownership of GCBC / Greene County Bancorp, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 50,966 shares of Greene County Bancorp, Inc. (US:GCBC) valued at $1,142,148 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 49,348 shares of Greene County Bancorp, Inc.. This represents a change in shares of 3.28% during the quarter. The current value of the position is $1,407,681 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)
2026-05-14 2026-03-31 13F GREENE CNTY BANCORP COM 394357107 50,966 1,618 3.28 1,142 4.10 0.0002
2026-02-17 2025-12-31 13F GREENE CNTY BANCORP COM 394357107 49,348 -4,692 -8.68 1,097 -10.16 0.0001
2025-11-14 2025-09-30 13F GREENE CNTY BANCORP COM 394357107 54,040 356 0.66 1,221 2.43 0.0002
2025-08-13 2025-06-30 13F GREENE CNTY BANCORP COM 394357107 53,684 -11,146 -17.19 1,193 -23.74 0.0002
2025-05-13 2025-03-31 13F GREENE CNTY BANCORP COM 394357107 64,830 -1,592 -2.40 1,563 -15.10 0.0002
2025-02-14 2024-12-31 13F GREENE CNTY BANCORP COM 394357107 66,422 1,632 2.52 1,841 -8.04 0.0003
2024-11-13 2024-09-30 13F GREENE CNTY BANCORP COM 394357107 64,790 -477 -0.73 2,002 -9.00 0.0003
2024-08-14 2024-06-30 13F GREENE CNTY BANCORP COM 394357107 65,267 3,981 6.50 2,200 24.72 0.0004
2024-05-14 2024-03-31 13F GREENE CNTY BANCORP COM 394357107 61,286 645 1.06 1,764 3.16 0.0003
2024-02-13 2023-12-31 13F GREENE CNTY BANCORP COM 394357107 60,641 1,356 2.29 1,710 20.00 0.0003
2023-11-13 2023-09-30 13F GREENE CNTY BANCORP COM 394357107 59,285 2,281 4.00 1,426 -16.08 0.0003
2023-08-11 2023-06-30 13F GREENE CNTY BANCORP COM 394357107 57,004 1,208 2.17 1,699 34.23 0.0003
2023-05-15 2023-03-31 13F GREENE CNTY BANCORP COM 394357107 55,796 28,163 101.92 1,265 -20.24 0.0003
2023-02-13 2022-12-31 13F GREENE CNTY BANCORP COM 394357107 27,633 175 0.64 1,587 0.89 0.0003
2022-11-14 2022-09-30 13F GREENE CNTY BANCORP COM 394357107 27,458 -549 -1.96 1,572 23.97 0.0004
2022-08-12 2022-06-30 13F GREENE CNTY BANCORP COM 394357107 28,007 22,407 400.12 1,268 407.20 0.0003
2022-05-13 2022-03-31 13F GREENE CNTY BANCORP COM 394357107 5,600 -276 -4.70 250 15.74 0.0000
2022-02-08 2021-12-31 13F GREENE CNTY BANCORP COM 394357107 5,876 0 0.00 216 1.41 0.0000
2021-11-15 2021-09-30 13F GREENE CNTY BANCORP COM 394357107 5,876 -2,176 -27.02 213 -6.17 0.0000
2021-08-13 2021-06-30 13F GREENE CNTY BANCORP COM 394357107 8,052 -21,608 -72.85 227 -69.41 0.0000
2021-05-12 2021-03-31 13F GREENE COUNTY BANCORP COM 394357107 29,660 -2,436 -7.59 742 -9.29 0.0001
2021-02-11 2020-12-31 13F GREENE COUNTY BANCORP COM 394357107 32,096 -744 -2.27 818 14.73 0.0002
2020-11-16 2020-09-30 13F GREENE COUNTY BANCORP COM 394357107 32,840 -1,461 -4.26 713 -6.80 0.0002
2020-08-14 2020-06-30 13F GREENE COUNTY BANCORP COM 394357107 34,301 -3,706 -9.75 765 -13.75 0.0002
2020-05-14 2020-03-31 13F GREENE COUNTY BANCORP COM 394357107 38,007 6,168 19.37 887 -3.17 0.0003
2020-02-14 2019-12-31 13F GREENE COUNTY BANCORP COM 394357107 31,839 -1,112 -3.37 916 1.44 0.0002
2019-11-13 2019-09-30 13F GREENE COUNTY BANCORP COM 394357107 32,951 1,472 4.68 903 -2.48 0.0002
2019-08-13 2019-06-30 13F GREENE COUNTY BANCORP COM 394357107 31,479 840 2.74 926 -0.43 0.0002
2019-05-13 2019-03-31 13F GREENE COUNTY BANCORP COM 394357107 30,639 -77 -0.25 930 -2.62 0.0002
2019-02-12 2018-12-31 13F GREENE COUNTY BANCORP COM 394357107 30,716 52 0.17 955 -2.95 0.0003
2018-11-14 2018-09-30 13F GREENE COUNTY BANCORP COM 394357107 30,664 205 0.67 984 -4.65 0.0002
2018-09-18 2018-06-30 13F/A-1 GREENE COUNTY BANCORP COM 394357107 30,459 225 0.74 1,032 -6.94 0.0003
2018-08-14 2018-06-30 13F GREENE COUNTY BANCORP COM 394357107 30,459 225 1,032
2018-05-09 2018-03-31 13F GREENE COUNTY BANCORP COM 394357107 30,234 856 2.91 1,109 15.76 0.0003
2018-02-14 2017-12-31 13F GREENE COUNTY BANCORP COM 394357107 29,378 -536 -1.79 958 6.68 0.0002
2017-11-13 2017-09-30 13F GREENE COUNTY BANCORP COM 394357107 29,914 525 1.79 898 12.39 0.0002
2017-08-11 2017-06-30 13F GREENE COUNTY BANCORP COM 394357107 29,389 5,058 20.79 799 40.67 0.0002
2017-05-12 2017-03-31 13F GREENE COUNTY BANCORP COM 394357107 24,331 947 4.05 568 5.97 0.0002
2017-02-13 2016-12-31 13F GREENE COUNTY BANCORP COM 394357107 23,384 785 3.47 536 42.18 0.0002
2016-11-09 2016-09-30 13F GREENE COUNTY BANCORP COM 394357107 22,599 23 0.10 377 2.72 0.0001
2016-08-12 2016-06-30 13F GREENE COUNTY BANCORP COM 394357107 22,576 22,576 367 0.0001
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.