그린 카운티 Bancorp, Inc.
US ˙ NasdaqCM ˙ US3943571071

SecurityGCBC / Greene County Bancorp, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership678,228 shares
Latest Disclosed Value $ 15,199,091
BlackRock, Inc. reports 1.53% decrease in ownership of GCBC / Greene County Bancorp, Inc.

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 678,228 shares of Greene County Bancorp, Inc. (US:GCBC) valued at $15,199,089 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 688,796 shares of Greene County Bancorp, Inc.. This represents a change in shares of -1.53% during the quarter. The current value of the position is $18,732,657 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.

Upgrade to unlock premium data and export to Excel .

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 GREENE CNTY BANCORP COM 394357107 678,228 -10,568 -1.53 15,199 -0.73 0.0000
2026-02-12 2025-12-31 13F GREENE CNTY BANCORP COM 394357107 688,796 -6,247 -0.90 15,312 -2.52 0.0003
2025-11-12 2025-09-30 13F GREENE CNTY BANCORP COM 394357107 695,043 131,021 23.23 15,708 25.34 0.0003
2025-08-12 2025-06-30 13F GREENE CNTY BANCORP COM 394357107 564,022 71,802 14.59 12,533 5.60 0.0002
2025-05-02 2025-03-31 13F GREENE CNTY BANCORP COM 394357107 492,220 42,413 9.43 11,867 -4.82 0.0002
2025-02-07 2024-12-31 13F GREENE CNTY BANCORP COM 394357107 449,807 24,142 5.67 12,469 -5.21 0.0003
2024-11-13 2024-09-30 13F GREENE CNTY BANCORP COM 394357107 425,665 17,577 4.31 13,153 -4.38 0.0003
2024-08-13 2024-06-30 13F GREENE CNTY BANCORP COM 394357107 408,088 12,572 3.18 13,757 20.82 0.0003
2024-05-10 2024-03-31 13F GREENE CNTY BANCORP COM 394357107 395,516 -15,866 -3.86 11,387 -1.84 0.0003
2024-02-13 2023-12-31 13F GREENE CNTY BANCORP COM 394357107 411,382 36,024 9.60 11,601 28.50 0.0003
2023-11-13 2023-09-30 13F GREENE CNTY BANCORP COM 394357107 375,358 -8,688 -2.26 9,027 -21.12 0.0003
2023-08-11 2023-06-30 13F GREENE CNTY BANCORP COM 394357107 384,046 49,337 14.74 11,445 50.76 0.0003
2023-05-12 2023-03-31 13F GREENE CNTY BANCORP COM 394357107 334,709 157,451 88.83 7,591 -25.42 0.0002
2023-02-13 2022-12-31 13F GREENE CNTY BANCORP COM 394357107 177,258 13,817 8.45 10,178 8.74 0.0003
2022-11-14 2022-09-30 13F GREENE CNTY BANCORP COM 394357107 163,441 17,337 11.87 9,360 41.43 0.0003
2022-08-12 2022-06-30 13F GREENE CNTY BANCORP COM 394357107 146,104 136,349 1,397.73 6,618 1,414.42 0.0002
2022-05-12 2022-03-31 13F GREENE CNTY BANCORP COM 394357107 9,755 -279 -2.78 437 18.43 0.0000
2022-02-10 2021-12-31 13F GREENE CNTY BANCORP COM 394357107 10,034 343 3.54 369 5.13 0.0000
2021-11-09 2021-09-30 13F GREENE CNTY BANCORP COM 394357107 9,691 -303 -3.03 351 24.47 0.0000
2021-08-11 2021-06-30 13F GREENE CNTY BANCORP COM 394357107 9,994 -171,334 -94.49 282 -93.78 0.0000
2021-05-07 2021-03-31 13F GREENE COUNTY BANCORP COM 394357107 181,328 5,120 2.91 4,535 0.96 0.0001
2021-02-05 2020-12-31 13F GREENE COUNTY BANCORP COM 394357107 176,208 21,943 14.22 4,492 34.25 0.0001
2020-11-06 2020-09-30 13F GREENE COUNTY BANCORP COM 394357107 154,265 731 0.48 3,346 -2.28 0.0001
2020-08-14 2020-06-30 13F GREENE COUNTY BANCORP COM 394357107 153,534 -4,153 -2.63 3,424 -7.06 0.0001
2020-05-01 2020-03-31 13F GREENE COUNTY BANCORP COM 394357107 157,687 -1,164 -0.73 3,684 -19.44 0.0002
2020-02-13 2019-12-31 13F GREENE COUNTY BANCORP COM 394357107 158,851 1,280 0.81 4,573 5.93 0.0002
2019-11-08 2019-09-30 13F GREENE COUNTY BANCORP COM 394357107 157,571 7,869 5.26 4,317 -2.00 0.0002
2019-08-22 2019-06-30 13F/A-1 GREENE COUNTY BANCORP COM 394357107 149,702 17,421 13.17 4,405 9.66 0.0002
2019-08-13 2019-06-30 13F GREENE COUNTY BANCORP COM 394357107 149,702 17,421 4,405
2019-05-09 2019-03-31 13F GREENE COUNTY BANCORP COM 394357107 132,281 -5,710 -4.14 4,017 -6.47 0.0002
2019-02-08 2018-12-31 13F GREENE COUNTY BANCORP COM 394357107 137,991 -2,212 -1.58 4,295 -4.58 0.0002
2018-11-09 2018-09-30 13F GREENE COUNTY BANCORP COM 394357107 140,203 905 0.65 4,501 -4.70 0.0002
2018-08-09 2018-06-30 13F GREENE COUNTY BANCORP COM 394357107 139,298 20,485 17.24 4,723 8.30 0.0002
2018-05-09 2018-03-31 13F GREENE COUNTY BANCORP COM 394357107 118,813 -1,192 -0.99 4,361 11.51 0.0002
2018-02-09 2017-12-31 13F GREENE COUNTY BANCORP COM 394357107 120,005 970 0.81 3,911 9.34 0.0002
2017-11-14 2017-09-30 13F GREENE COUNTY BANCORP COM 394357107 119,035 2,853 2.46 3,577 13.16 0.0002
2017-08-10 2017-06-30 13F GREENE COUNTY BANCORP COM 394357107 116,182 1,151 1.00 3,161 17.68 0.0002
2017-05-12 2017-03-31 13F GREENE COUNTY BANCORP COM 394357107 115,031 114,850 63,453.04 2,686 67,050.00 0.0001
2017-02-10 2016-12-31 13F GREENE COUNTY BANCORP COM 394357107 181 0 0.00 4 33.33 0.0000
2016-11-08 2016-09-30 13F GREENE COUNTY BANCORP COM 394357107 181 0 0.00 3 0.00 0.0000
2016-08-10 2016-06-30 13F GREENE COUNTY BANCORP COM 394357107 181 181 3 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.