Who owns Greene County Bancorp (GCBC)
Which tracked institutional funds hold GCBC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GCBC company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on GCBC is one-sided between 2026-Q1 and 2026-Q2: 24 added or opened and 3 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GCBC’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GCBC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 75 tracked filers holding GCBC, 47 increased or opened the position and 29 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GCBC between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- BAYVIEW ASSET MANAGEMENT, LLC$840K
Full exits 3
- Covalent Partners LLC$2M
- MILLENNIUM MANAGEMENT LLC$530K
- STONERIDGE INVESTMENT PARTNERS LLC$507K
Largest adds
- VANGUARD CAPITAL MANAGEMENT LLC$10M
- BlackRock, Inc.$7M
- NewEdge Advisors, LLC$4M
- GEODE CAPITAL MANAGEMENT, LLC$2M
- STATE STREET CORP$1M
- DIMENSIONAL FUND ADVISORS LP$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 667,689 | $22M | 22.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 492,107 | $17M | 16.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 183,768 | $6M | 6.2% | 2026-Q2 |
| STATE STREET CORP added | 129,019 | $4M | 4.4% | 2026-Q2 |
| NewEdge Advisors, LLC trimmed | 109,206 | $4M | 3.7% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 101,947 | $3M | 3.4% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 79,847 | $3M | 2.7% | 2026-Q2 |
| NORTHERN TRUST CORP added | 69,897 | $2M | 2.4% | 2026-Q2 |
| Angel Oak Capital Advisors, LLC | 61,000 | $2M | 2.1% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 52,200 | $2M | 1.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 47,851 | $2M | 1.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 46,414 | $2M | 1.6% | 2026-Q2 |
| HSBC HOLDINGS PLC trimmed | 40,222 | $1M | 1.4% | 2026-Q2 |
| LPL Financial LLC trimmed | 39,852 | $1M | 1.3% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC | 34,948 | $1M | 1.2% | 2026-Q2 |
| MORGAN STANLEY trimmed | 32,344 | $1M | 1.1% | 2026-Q2 |
| Bank of New York Mellon Corp added | 28,549 | $959K | 1.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 27,703 | $931K | 0.9% | 2026-Q2 |
| BAYVIEW ASSET MANAGEMENT, LLC new | 25,000 | $840K | 0.8% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 24,288 | $816K | 0.8% | 2026-Q2 |
| Nuveen, LLC | 22,603 | $759K | 0.8% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 20,529 | $690K | 0.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 19,145 | $643K | 0.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 16,991 | $571K | 0.6% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 15,626 | $525K | 0.5% | 2026-Q2 |
| Arax Advisory Partners added | 12,627 | $424K | 0.4% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 11,496 | $386K | 0.4% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 10,027 | $337K | 0.3% | 2026-Q2 |
| UBS Group AG added | 8,910 | $299K | 0.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC new | 8,856 | $297K | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 8,812 | $296K | 0.3% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 11,950 | $268K | 0.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 6,944 | $233K | 0.2% | 2026-Q2 |
| Equitable Holdings, Inc. new | 6,922 | $232K | 0.2% | 2026-Q2 |
| XTX Topco Ltd new | 6,174 | $207K | 0.2% | 2026-Q2 |
| Benin Management CORP new | 6,104 | $205K | 0.2% | 2026-Q2 |
| PITTENGER & ANDERSON INC | 5,065 | $170K | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 4,497 | $151K | 0.2% | 2026-Q2 |
| MetLife Investment Management, LLC added | 4,054 | $136K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 3,602 | $119K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 3,275 | $110K | 0.1% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 2,909 | $98K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND | 2,659 | $89K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 2,599 | $87K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 2,544 | $85K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 2,484 | $83K | 0.1% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added | 1,244 | $42K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 831 | $28K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 723 | $24K | 0.0% | 2026-Q2 |
| Legal & General Group Plc | 675 | $23K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 667 | $22K | 0.0% | 2026-Q2 |
| Dorato Capital Management | 654 | $21K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. | 508 | $17K | 0.0% | 2026-Q2 |
| Steward Partners Investment Advisory, LLC | 355 | $12K | 0.0% | 2026-Q2 |
| FMR LLC added | 243 | $8K | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 136 | $5K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC added | 131 | $4K | 0.0% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 98 | $3K | 0.0% | 2026-Q2 |
| Bell Investment Advisors, Inc added | 89 | $3K | 0.0% | 2026-Q2 |
| IFP Advisors, Inc added | 65 | $2K | 0.0% | 2026-Q2 |
| Bare Financial Services, Inc new | 62 | $2K | 0.0% | 2026-Q2 |
| Essential Partners LLC added | 53 | $2K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 44 | $1K | 0.0% | 2026-Q2 |
| Allworth Financial LP added | 43 | $1K | 0.0% | 2026-Q2 |
| Rialto Wealth Management, LLC added | 42 | $1K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC added | 26 | $873 | 0.0% | 2026-Q2 |
| North Star Investment Management Corp. | 23 | $773 | 0.0% | 2026-Q2 |
| Bogart Wealth, LLC new | 20 | $672 | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 14 | $460 | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC | 12 | $403 | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 10 | $333 | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC added | 6 | $202 | 0.0% | 2026-Q2 |
| Basecamp Wealth Advisors LLC added | 4 | $134 | 0.0% | 2026-Q2 |
| True Wealth Design, LLC trimmed | 3 | $101 | 0.0% | 2026-Q2 |
| Quarry LP new | 2 | $67 | 0.0% | 2026-Q2 |
| Covalent Partners LLC added | 69,000 | $2M | 1.6% | 2026-Q1 stale (1 quarter behind) |
| MILLENNIUM MANAGEMENT LLC trimmed | 23,628 | $530K | 0.5% | 2026-Q1 stale (1 quarter behind) |
| STONERIDGE INVESTMENT PARTNERS LLC | 22,615 | $507K | 0.5% | 2026-Q1 stale (1 quarter behind) |
| CWM, LLC trimmed | 1,184 | $27K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| State of Alaska, Department of Revenue | 639 | $14K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| HARBOR CAPITAL ADVISORS, INC. added | 146 | $3K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| HARBOUR INVESTMENTS, INC. trimmed | 126 | $3K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Optiver Holding B.V. trimmed | 72 | $2K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Scarborough Advisors, LLC new | 64 | $1K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| MAI Capital Management added | 10 | $225 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Root Financial Partners, LLC new | 4 | $90 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Avion Wealth new | 23 | — | 0.0% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 371,003 | $8M | 8.3% | 2025-Q4 stale (2 quarters behind) |
| AMALGAMATED BANK trimmed | 220 | $5K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| STIFEL FINANCIAL CORP | 59,440 | $1M | 1.4% | 2025-Q3 stale (3 quarters behind) |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 13,810 | $312K | 0.3% | 2025-Q3 stale (3 quarters behind) |
| FIRST TRUST ADVISORS LP trimmed | 9,374 | $212K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| AllSquare Wealth Management LLC | 1,523 | $34K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Clearstead Advisors, LLC new | 3 | $68 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| MARSHALL WACE, LLP trimmed | 54,313 | $1M | 1.2% | 2025-Q2 stale (4 quarters behind) |
| HRT FINANCIAL LP new | 16,766 | $372K | 0.4% | 2025-Q2 stale (4 quarters behind) |
| JANE STREET GROUP, LLC trimmed | 9,686 | $215K | 0.2% | 2025-Q2 stale (4 quarters behind) |
| SUMMIT SECURITIES GROUP LLC new | 1,500 | $33K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| LAZARD ASSET MANAGEMENT LLC | 249 | $5K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| Golden State Wealth Management, LLC trimmed | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.