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Equibles

GCBC

Greene County Bancorp Inc

Company with tickers: GCBC

CIK
1070524
CUSIP
394357107
Shares Outstanding
17,025,485
13F Activity (30d)
52 filings 47 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 75
Total Value: $51,742,641
Total Shares: 2,308,911

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 75 13F filers · Δ vs Dec 31, 2025
Top Holder
29.4%
Jun 2023 → Mar 2026 · range 20.5% – 38.1%
−0.1 pts
Top 5
59.8%
Jun 2023 → Mar 2026 · range 56.5% – 77.8%
−3.1 pts
Top 10
74.7%
Jun 2023 → Mar 2026 · range 72.3% – 91.6%
−2.4 pts
HHI
1,215
Jun 2023 → Mar 2026 · range 915 – 1,978
Broadly held −81

Quarterly Activity

vs Dec 31, 2025
New
11
Increased
21
Decreased
31
Sold Out
3
Unchanged
12
Holder count: +8
Institutional value: -0.5%
Shares held: -1.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Micro Covalent Partners LLC +6,000 69,000
Mega TWO SIGMA INVESTMENTS, LP +4,519 19,576
Mega GOLDMAN SACHS GROUP INC +1,821 68,191
Mega NORTHERN TRUST CORP +1,618 50,966
Large RENAISSANCE TECHNOLOGIES LLC +1,300 51,000

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega CITADEL ADVISORS LLC −12,987 11,434
Mega MILLENNIUM MANAGEMENT LLC −12,830 23,628
Mega BlackRock, Inc. −10,568 678,228
Mega BARCLAYS PLC −9,271 28,571
Mega MORGAN STANLEY −5,664 34,487

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 298,151 $6,681,563
Mega VANGUARD FIDUCIARY TRUST CO 52,418 $1,174,687
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 41,311 $925,779
Mega Vanguard Global Advisers, LLC 2,484 $55,666
Micro Scarborough Advisors, LLC 64 $1,434

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 371,003 $8,247,395
Large AMALGAMATED BANK 220 $4,890
Micro Rialto Wealth Management, LLC 23 $511
Filter: New 11 Increased 21 Reduced 31 Sold out 3 Unchanged 12
Showing 75 of 75
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $15,199,084 29.37% 678,228
Mega VANGUARD CAPITAL MANAGEMENT LLC $6,681,563 12.91% 298,151
Mega GEODE CAPITAL MANAGEMENT, LLC $3,740,766 7.23% 166,924
Mega STATE STREET CORP $2,886,430 5.58% 128,801
Large NewEdge Advisors, LLC $2,453,782 4.74% 109,495
Mega DIMENSIONAL FUND ADVISORS LP $2,075,321 4.01% 92,607
Micro Covalent Partners LLC $1,546,290 2.99% 69,000
Mega GOLDMAN SACHS GROUP INC $1,528,160 2.95% 68,191
Micro Angel Oak Capital Advisors, LLC $1,367,010 2.64% 61,000
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,174,687 2.27% 52,418
Large RENAISSANCE TECHNOLOGIES LLC $1,142,910 2.21% 51,000
Mega NORTHERN TRUST CORP Bank $1,142,146 2.21% 50,966
Mega LPL Financial LLC $961,366 1.86% 42,899
Mega HSBC HOLDINGS PLC $950,654 1.84% 42,421
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $925,779 1.79% 41,311
Mega RAYMOND JAMES FINANCIAL INC $783,184 1.51% 34,948
Mega MORGAN STANLEY $772,852 1.49% 34,487
Mega BARCLAYS PLC $640,275 1.24% 28,571
Mega Bank of New York Mellon Corp Bank $579,543 1.12% 25,861
Mega MILLENNIUM MANAGEMENT LLC $529,503 1.02% 23,628
Small STONERIDGE INVESTMENT PARTNERS LLC $506,802 0.98% 22,615
Mega Nuveen, LLC $506,533 0.98% 22,603
Mega BANK OF AMERICA CORP /DE/ Bank $477,377 0.92% 21,302
Mega TWO SIGMA INVESTMENTS, LP $438,698 0.85% 19,576
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $417,722 0.81% 18,640
Mega AQR CAPITAL MANAGEMENT LLC $371,219 0.72% 16,565
Mega WELLS FARGO & COMPANY/MN $320,485 0.62% 14,301
Mega CITADEL ADVISORS LLC $256,235 0.50% 11,434
Mega ALLIANCEBERNSTEIN L.P. $256,146 0.50% 11,430
Mega RHUMBLINE ADVISERS $191,829 0.37% 8,560
Mid PITTENGER & ANDERSON INC $113,506 0.22% 5,065
Mega DEUTSCHE BANK AG\ Bank $89,975 0.17% 4,015
Large MetLife Investment Management, LLC $87,914 0.17% 3,923
Mega JPMORGAN CHASE & CO $77,314 0.15% 3,450
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $76,507 0.15% 3,414
Mega BNP PARIBAS ARBITRAGE, SA $67,588 0.13% 3,016
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $59,588 0.12% 2,659
Mega Vanguard Global Advisers, LLC $55,666 0.11% 2,484
Mega UBS Group AG $47,059 0.09% 2,100
Large Police & Firemen's Retirement System of New Jersey Pension $31,530 0.06% 1,407
Large CWM, LLC $26,533 0.05% 1,184
Mega CITIGROUP INC $20,392 0.04% 910
Mega ROYAL BANK OF CANADA Bank $20,258 0.04% 904
Mid Tower Research Capital LLC (TRC) $19,496 0.04% 870
Mega Legal & General Group Plc $15,126 0.03% 675
Micro Dorato Capital Management $14,656 0.03% 654
Mid State of Alaska, Department of Revenue $14,319 0.03% 639
Large Russell Investments Group, Ltd. $13,154 0.03% 587
Mid Ameritas Investment Partners, Inc. $11,384 0.02% 508
Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO $8,964 0.02% 400
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $8,515 0.02% 380
Large Steward Partners Investment Advisory, LLC $7,955 0.02% 355
Large OSAIC HOLDINGS, INC. $6,812 0.01% 304
Mega FMR LLC $5,131 0.01% 229
Mid HARBOR CAPITAL ADVISORS, INC. $3,271 0.01% 146
Mid HARBOUR INVESTMENTS, INC. $2,823 0.01% 126
Mid Sterling Capital Management LLC $2,689 0.01% 120
Mid Optiver Holding B.V. $1,613 0.00% 72
Micro Scarborough Advisors, LLC $1,434 0.00% 64
Mid IFP Advisors, Inc $1,120 0.00% 50
Mid EverSource Wealth Advisors, LLC $1,119 0.00% 50
Small Essential Partners LLC $1,075 0.00% 48
Mid North Star Investment Management Corp. $515 0.00% 23
Micro Bell Investment Advisors, Inc $515 0.00% 23
Micro Avion Wealth $515 0.00% 23
Mid Arax Advisory Partners $515 0.00% 23
Small Covestor Ltd $425 0.00% 19
Mid Allworth Financial LP $291 0.00% 13
Large NISA INVESTMENT ADVISORS, LLC $268 0.00% 12
Mid MAI Capital Management $224 0.00% 10
Mid GAMMA Investing LLC $156 0.00% 7
Mid ROTHSCHILD INVESTMENT LLC $112 0.00% 5
Micro True Wealth Design, LLC $112 0.00% 5
Small Root Financial Partners, LLC $89 0.00% 4
Mid Farther Finance Advisors, LLC $67 0.00% 3

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