Greene County Bancorp, Inc.
US ˙ NasdaqCM ˙ US3943571071

SecurityGCBC / Greene County Bancorp, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership128,801 shares
Latest Disclosed Value $ 2,886,430
State Street Corp reports 0.31% increase in ownership of GCBC / Greene County Bancorp, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 128,801 shares of Greene County Bancorp, Inc. (US:GCBC) valued at $2,886,430 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 128,400 shares of Greene County Bancorp, Inc.. This represents a change in shares of 0.31% during the quarter. The current value of the position is $3,557,484 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 GREENE CNTY BANCORP COM 394357107 128,801 401 0.31 2,886 1.12 0.0001
2026-02-13 2025-12-31 13F GREENE CNTY BANCORP COM 394357107 128,400 279 0.22 2,854 -1.42 0.0001
2025-11-14 2025-09-30 13F GREENE CNTY BANCORP COM 394357107 128,121 1,059 0.83 2,896 2.55 0.0001
2025-08-14 2025-06-30 13F GREENE CNTY BANCORP COM 394357107 127,062 1,412 1.12 2,823 -6.80 0.0001
2025-05-15 2025-03-31 13F GREENE CNTY BANCORP COM 394357107 125,650 2,689 2.19 3,029 -11.12 0.0001
2025-02-14 2024-12-31 13F GREENE CNTY BANCORP COM 394357107 122,961 369 0.30 3,408 -10.03 0.0001
2024-11-14 2024-09-30 13F GREENE CNTY BANCORP COM 394357107 122,592 10,152 9.03 3,788 -0.05 0.0002
2024-08-14 2024-06-30 13F GREENE CNTY BANCORP COM 394357107 112,440 -1,209 -1.06 3,790 15.87 0.0002
2024-05-15 2024-03-31 13F GREENE CNTY BANCORP COM 394357107 113,649 950 0.84 3,272 2.93 0.0001
2024-02-14 2023-12-31 13F GREENE CNTY BANCORP COM 394357107 112,699 -166 -0.15 3,178 17.10 0.0002
2023-11-14 2023-09-30 13F GREENE CNTY BANCORP COM 394357107 112,865 7,800 7.42 2,714 -13.29 0.0002
2023-08-14 2023-06-30 13F GREENE CNTY BANCORP COM 394357107 105,065 13,665 14.95 3,131 51.06 0.0002
2023-05-15 2023-03-31 13F GREENE CNTY BANCORP COM 394357107 91,400 46,227 102.33 2,073 -20.09 0.0001
2023-05-15 2022-12-31 13F/A-99 GREENE CNTY BANCORP COM 394357107 45,173 3,698 8.92 2,594 9.18 0.0002
2023-05-15 2022-12-31 13F GREENE CNTY BANCORP COM 394357107 45,173 3,698 2,594 0.0002
2022-11-15 2022-09-30 13F GREENE CNTY BANCORP COM 394357107 41,475 8,883 27.26 2,375 60.91 0.0002
2022-08-15 2022-06-30 13F GREENE CNTY BANCORP COM 394357107 32,592 23,292 250.45 1,476 254.81 0.0001
2022-05-16 2022-03-31 13F GREENE CNTY BANCORP COM 394357107 9,300 3,200 52.46 416 85.71 0.0000
2022-02-14 2021-12-31 13F GREENE CNTY BANCORP COM 394357107 6,100 0 0.00 224 0.90 0.0000
2021-11-15 2021-09-30 13F GREENE CNTY BANCORP COM 394357107 6,100 6,100 222 0.0000
2021-08-16 2021-06-30 13F GREENE COUNTY BANCORP COM 394357107 0 -40,680 -100.00 0 -100.00
2021-07-09 2021-03-31 13F/A-1 GREENE COUNTY BANCORP COM 394357107 40,680 -1,407 -3.34 1,017 -5.22 0.0001
2021-05-17 2021-03-31 13F GREENE COUNTY BANCORP COM 394357107 40,680 -1,407 1,017 0.0001
2021-02-16 2020-12-31 13F GREENE COUNTY BANCORP COM 394357107 42,087 -1,000 -2.32 1,073 14.76 0.0001
2020-11-10 2020-09-30 13F GREENE COUNTY BANCORP COM 394357107 43,087 -1,300 -2.93 935 -5.56 0.0001
2020-08-14 2020-06-30 13F GREENE COUNTY BANCORP COM 394357107 44,387 1,249 2.90 990 -1.79 0.0001
2020-06-19 2020-03-31 13F/A-1 GREENE COUNTY BANCORP COM 394357107 43,138 1,763 4.26 1,008 -15.37 0.0001
2020-05-11 2020-03-31 13F GREENE COUNTY BANCORP COM 394357107 43,138 1,763 1,008 88.5227
2020-02-06 2019-12-31 13F GREENE COUNTY BANCORP COM 394357107 41,375 -2,491 -5.68 1,191 -0.92 0.0001
2019-11-14 2019-09-30 13F GREENE COUNTY BANCORP COM 394357107 43,866 5,713 14.97 1,202 7.13 0.0001
2019-08-14 2019-06-30 13F GREENE COUNTY BANCORP COM 394357107 38,153 234 0.62 1,122 -2.52 0.0001
2019-05-15 2019-03-31 13F GREENE COUNTY BANCORP COM 394357107 37,919 911 2.46 1,151 -0.09 0.0001
2019-02-12 2018-12-31 13F GREENE COUNTY BANCORP COM 394357107 37,008 1,033 2.87 1,152 -0.26 0.0001
2018-11-09 2018-09-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 35,975 -350 -0.96 1,155 -6.02 0.0001
2018-08-14 2018-06-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 36,325 -1,100 -2.94 1,229 -10.62 0.0001
2018-05-15 2018-03-31 13F GREENE COUNTY BANCORP Common equity shares 394357107 37,425 903 2.47 1,375 15.45 0.0001
2018-02-14 2017-12-31 13F GREENE COUNTY BANCORP Common equity shares 394357107 36,522 1,852 5.34 1,191 14.30 0.0001
2017-11-14 2017-09-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 34,670 1,471 4.43 1,042 15.52 0.0001
2017-08-14 2017-06-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 33,199 1,211 3.79 902 20.75 0.0001
2017-05-15 2017-03-31 13F GREENE COUNTY BANCORP Common equity shares 394357107 31,988 882 2.84 747 4.92 0.0001
2017-02-09 2016-12-31 13F GREENE COUNTY BANCORP Common equity shares 394357107 31,106 9,877 46.53 712 101.70 0.0001
2017-01-13 2016-09-30 13F/A-1 GREENE COUNTY BANCORP Common equity shares 394357107 21,229 5,029 31.04 353 33.71 0.0000
2016-11-14 2016-09-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 21,229 353
2016-08-12 2016-06-30 13F GREENE COUNTY BANCORP Common equity shares 394357107 16,200 16,200 264 0.0000
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.