GCBC · Greene County Bancorp Inc · Shareholders & Ownership

$34.93 +1.04 (+3.07%) At close · Oct 20

Russell 2000 member Rebalance outlook locked

Market Cap

$594.70M

17.03M

Volume · Oct 20 23.52K Avg daily vol (3M) 32.89K

Every disclosed holder of GCBC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns GCBC

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	79	2,537,625	14.90%	Yes
Insiders (Forms 3, 4, 5)	9	353,473	2.08%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	14,134,387	83.02%	Rest
Registered funds (N-PORT, not summed)	115	1,261,510	7.41%	No

Shares outstanding: 17,025,485, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of GCBC

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	667,689	3.92%	-10,539	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	190,570	1.12%	+10,267	Jun 30, 2026	iShares Trust, not summed
1.2	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	59,567	0.35%	+35,931	Jun 30, 2026	iShares Trust, not summed
1.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	24,460	0.14%	+6,642	Jun 30, 2026	iShares Trust, not summed
1.4	BlackRock Advantage Small Cap Core Fund Fund S000039982 · Registered fund · May 29, 2026 BlackRock Funds, not summed	23,786	0.14%	0	May 29, 2026	BlackRock Funds, not summed
1.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	11,856	0.07%	0	Jun 30, 2026	Quantitative Master Series LLC, not summed
2	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	492,107	2.89%	+193,956	Jun 30, 2026	carried, not yet filed for the newest quarter
3	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	391,534	2.30%	+186,034	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
4	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	183,768	1.08%	+16,844	Jun 30, 2026	carried, not yet filed for the newest quarter
5	PLUMMER MICHELLE M Insider CIK 1247575 · Jun 11, 2026 Director, SEVP, CFO & COO, issuer-wide	149,887	0.88%	-7,840	Jun 11, 2026	Director, SEVP, CFO & COO, issuer-wide
6	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	129,019	0.76%	+218	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	2,200	0.01%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
6.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	168	0.00%	0	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
6.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	94	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
7	NewEdge Advisors, LLC 13F CIK 1633516 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	109,206	0.64%	-289	Jun 30, 2026	carried, not yet filed for the newest quarter
8	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	101,947	0.60%	+9,340	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	22,250	0.13%	+535	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
8.2	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	17,781	0.10%	+592	Jul 31, 2026	Dimensional ETF Trust, not summed
8.3	U.S. CORE EQUITY 2 PORTFOLIO Fund S000000980 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	4,267	0.03%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
8.4	U.S. Sustainability Core 1 Portfolio Fund S000020422 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	3,957	0.02%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
8.5	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	2,096	0.01%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
9	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	81,083	0.48%	-4,393	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
10	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	79,847	0.47%	+11,656	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF Fund S000048296 · Registered fund · May 31, 2026 Goldman Sachs ETF Trust, not summed	8,203	0.05%	+109	May 31, 2026	Goldman Sachs ETF Trust, not summed
10.2	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	7,145	0.04%	+3,344	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
11	Hogan Peter W. Insider CIK 1592265 · Mar 18, 2026 Director, issuer-wide	75,000	0.44%	+3,000	Mar 18, 2026	Director, issuer-wide
12	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	69,897	0.41%	+18,931	Jun 30, 2026	carried, not yet filed for the newest quarter
12.1	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	3,895	0.02%	—	Jun 30, 2026	Northern Funds, not summed
12.2	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	3,437	0.02%	0	Jun 30, 2026	Northern Funds, not summed
13	Angel Oak Capital Advisors, LLC 13F CIK 1613158 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	61,000	0.36%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
14	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	52,200	0.31%	+1,200	Jun 30, 2026	carried, not yet filed for the newest quarter
15	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	47,851	0.28%	+6,540	Jun 30, 2026	carried, not yet filed for the newest quarter
16	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	46,414	0.27%	-6,004	Jun 30, 2026	carried, not yet filed for the newest quarter
17	Gibson Donald E Insider CIK 1405640 · Oct 29, 2025 Director, President and CEO, issuer-wide	45,095	0.26%	—	Oct 29, 2025	Director, President and CEO, issuer-wide
18	HSBC HOLDINGS PLC 13F CIK 873630 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	40,222	0.24%	-2,199	Jun 30, 2026	carried, not yet filed for the newest quarter
19	LPL Financial LLC 13F CIK 1403438 · Broker-dealer · Jun 30, 2026 carried, not yet filed for the newest quarter	39,852	0.23%	-3,047	Jun 30, 2026	carried, not yet filed for the newest quarter
20	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	35,794	0.21%	+1,208	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
21	Hada Tejraj S Insider CIK 1951975 · Mar 18, 2026 Director, issuer-wide	35,427	0.21%	+7,236	Mar 18, 2026	Director, issuer-wide
22	Cahalan Jay P. Insider CIK 1645641 · Oct 24, 2025 Director, issuer-wide	35,424	0.21%	+4,300	Oct 24, 2025	Director, issuer-wide
23	RAYMOND JAMES FINANCIAL INC 13F CIK 720005 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	34,948	0.21%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
24	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	32,344	0.19%	-2,143	Jun 30, 2026	carried, not yet filed for the newest quarter
25	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	28,549	0.17%	+2,688	Jun 30, 2026	carried, not yet filed for the newest quarter
26	BARCLAYS PLC 13F CIK 312069 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	27,703	0.16%	-868	Jun 30, 2026	carried, not yet filed for the newest quarter
27	BlackRock Advantage Small Cap Growth Fund Fund S000001507 · Registered fund · Jun 30, 2026 BlackRock Funds, not summed	27,216	0.16%	+211	Jun 30, 2026	BlackRock Funds, not summed
28	Angel Oak Financial Strategies Income Term Trust Fund · Registered fund · Jul 31, 2026 Angel Oak Financial Strategies Income Term Trust, not summed	25,000	0.15%	—	Jul 31, 2026	Angel Oak Financial Strategies Income Term Trust, not summed
29	BAYVIEW ASSET MANAGEMENT, LLC 13F CIK 1767366 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	25,000	0.15%	+25,000	Jun 30, 2026	carried, not yet filed for the newest quarter
30	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	24,288	0.14%	+7,723	Jun 30, 2026	carried, not yet filed for the newest quarter
31	Nuveen, LLC 13F CIK 1871926 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	22,603	0.13%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
31.1	Nuveen Equity Index Fund Fund S000005360 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	12,173	0.07%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
31.2	Nuveen Small Cap Blend Index Fund Fund S000005367 · Registered fund · Jul 31, 2026 TIAA-CREF Funds, not summed	9,442	0.06%	0	Jul 31, 2026	TIAA-CREF Funds, not summed
31.3	TIAA Separate Account VA-1 - Stock Index Account Fund S000005098 · Registered fund · Jun 30, 2026 TIAA Separate Account VA-1, not summed	451	0.00%	0	Jun 30, 2026	TIAA Separate Account VA-1, not summed
31.4	Nuveen Life Stock Index Fund Fund S000005094 · Registered fund · Jun 30, 2026 TIAA-CREF Life Funds, not summed	132	0.00%	0	Jun 30, 2026	TIAA-CREF Life Funds, not summed
32	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	20,529	0.12%	+1,889	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	17,275	0.10%	+1,860	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
32.2	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	3,212	0.02%	0	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
33	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	19,145	0.11%	-2,157	Jun 30, 2026	carried, not yet filed for the newest quarter
34	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	16,991	0.10%	-2,585	Jun 30, 2026	carried, not yet filed for the newest quarter
35	WELLS FARGO & COMPANY/MN 13F CIK 72971 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	15,626	0.09%	+1,325	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Arax Advisory Partners 13F CIK 1586767 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	12,627	0.07%	+12,604	Jun 30, 2026	carried, not yet filed for the newest quarter
37	ALLIANCEBERNSTEIN L.P. 13F CIK 1109448 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	11,950	0.07%	+520	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Squarepoint Ops LLC 13F CIK 1642575 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	11,496	0.07%	+11,496	Jun 30, 2026	carried, not yet filed for the newest quarter
39	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	10,027	0.06%	-1,407	Jun 30, 2026	carried, not yet filed for the newest quarter
40	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	8,910	0.05%	+6,810	Jun 30, 2026	carried, not yet filed for the newest quarter
41	AMERICAN CENTURY COMPANIES INC 13F CIK 748054 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	8,856	0.05%	+8,856	Jun 30, 2026	carried, not yet filed for the newest quarter
42	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	8,856	0.05%	+8,856	Jun 30, 2026	carried, not yet filed for the newest quarter
43	RHUMBLINE ADVISERS 13F CIK 1115418 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	8,812	0.05%	+252	Jun 30, 2026	carried, not yet filed for the newest quarter
44	WisdomTree U.S. SmallCap Dividend Fund Fund S000012394 · Registered fund · Jun 30, 2026 WisdomTree Trust, not summed	7,751	0.05%	-35	Jun 30, 2026	WisdomTree Trust, not summed
45	VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND Fund S000002855 · Registered fund · Jun 30, 2026 VANGUARD INSTITUTIONAL INDEX FUNDS, not summed	7,158	0.04%	+2,972	Jun 30, 2026	VANGUARD INSTITUTIONAL INDEX FUNDS, not summed
46	DEUTSCHE BANK AG\ 13F CIK 948046 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	6,944	0.04%	+2,929	Jun 30, 2026	carried, not yet filed for the newest quarter
46.1	DWS Small Cap Index VIP Fund S000006223 · Registered fund · Jun 30, 2026 DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed	1,137	0.01%	+174	Jun 30, 2026	DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed
47	Equitable Holdings, Inc. 13F CIK 1333986 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	6,922	0.04%	+6,922	Jun 30, 2026	carried, not yet filed for the newest quarter
47.1	EQ/2000 Managed Volatility Portfolio Fund S000025800 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	7,958	0.05%	0	Jun 30, 2026	EQ Advisors Trust, not summed
47.2	EQ/Small Company Index Portfolio Fund S000009197 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	7,110	0.04%	+450	Jun 30, 2026	EQ Advisors Trust, not summed
47.3	EQ/AB Small Cap Growth Portfolio Fund S000009056 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	3,650	0.02%	+450	Jun 30, 2026	EQ Advisors Trust, not summed
47.4	ATM Small Cap Managed Volatility Portfolio Fund S000025801 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	2,862	0.02%	-432	Jun 30, 2026	EQ Advisors Trust, not summed
47.5	1290 VT Micro Cap Portfolio Fund S000044688 · Registered fund · Jun 30, 2026 EQ Advisors Trust, not summed	1,604	0.01%	+235	Jun 30, 2026	EQ Advisors Trust, not summed
48	Avantis U.S. Small Cap Equity ETF Fund S000074835 · Registered fund · May 31, 2026 American Century ETF Trust, not summed	6,323	0.04%	0	May 31, 2026	American Century ETF Trust, not summed
49	Brust John Insider CIK 2092267 · Apr 28, 2026 Director, issuer-wide	6,221	0.04%	+4,121	Apr 28, 2026	Director, issuer-wide
50	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	6,174	0.04%	+6,174	Jun 30, 2026	carried, not yet filed for the newest quarter

17 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 149 holders

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Key facts CIK 1070524 CUSIP 394357107 13F (30d) 9 filings 9 filers Visit website Investor relations