Greene County Bancorp, Inc.
Greene County Bancorp, Inc. (GCBC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GCBC · as of Sep 30, 2025
Ownership Breakdown
67
Institutional Holders
▲ 3 vs Q2
$54.23M
Total Inst. Value
▲ $2.09M vs Q2
17.03M
Shares Outstanding
freeFloat 40.57%
2.40M
13F Shares Held
▲ 54,538 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GCBC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. savings institutions, not federally chartered | 695.0K | 4.08% | 4.08% | $15.71B | Nov 12, 2025 | ▲ 131.0K |
VANGUARD GROUP INC savings institutions, not federally chartered | 369.5K | 2.17% | 2.17% | $8.35B | Nov 7, 2025 | ▲ 4.7K |
GEODE CAPITAL MANAGEMENT, LLC savings institutions, not federally chartered | 169.3K | 99.41% | 99.41% | $3.83B | Nov 12, 2025 | ▼ 46 |
STATE STREET CORP savings institutions, not federally chartered | 128.1K | 75.25% | 75.25% | $2.90B | Nov 14, 2025 | ▲ 1.1K |
NEWEDGE ADVISORS, LLC savings institutions, not federally chartered | 115.1K | 67.61% | 67.61% | $2.60B | Nov 17, 2025 | ▼ 98 |
DIMENSIONAL FUND ADVISORS LP savings institutions, not federally chartered | 86.2K | 50.63% | 50.63% | $1.95B | Nov 12, 2025 | ▲ 6.8K |
STIFEL FINANCIAL CORP savings institutions, not federally chartered | 59.4K | 34.91% | 34.91% | $1.34B | Nov 12, 2025 | — held |
GOLDMAN SACHS GROUP INC savings institutions, not federally chartered | 58.1K | 34.10% | 34.10% | $1.31B | Nov 14, 2025 | ▲ 19.7K |
ANGEL OAK CAPITAL ADVISORS, LLC savings institutions, not federally chartered | 57.5K | 33.77% | 33.77% | $1.30B | Nov 13, 2025 | ▲ 500 |
NORTHERN TRUST CORP savings institutions, not federally chartered | 54.0K | 31.74% | 31.74% | $1.22B | Nov 14, 2025 | ▲ 356 |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
18
Increased
+181.6K shares5
New Positions
first time holders16
Decreased
−118.0K shares0
Sold Out
fully exitedNet shares change (top 50)
+63.6K
+181.6K / −118.0K
Net new holders
+7
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GCBC insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Brust John director | Apr 28, 2026 | Purchase | 2,041 | $24.50 | $50.0K | 6.2K | Form 4 ↗ |
Brust John director | Apr 27, 2026 | Purchase | 1,040 | $24.06 | $25.0K | 4.2K | Form 4 ↗ |
Brust John director | Apr 27, 2026 | Purchase | 1,040 | $24.05 | $25.0K | 3.1K | Form 4 ↗ |
Hogan Peter W. director | Mar 18, 2026 | Purchase | 3,000 | $22.10 | $66.3K | 75.0K | Form 4 ↗ |
Hada Tejraj S director | Mar 18, 2026 | Purchase | 4,000 | $21.95 | $87.8K | 35.4K | Form 4 ↗ |
Hada Tejraj S director | Mar 17, 2026 | Purchase | 2,000 | $21.99 | $44.0K | 31.4K | Form 4 ↗ |
Barzee Nick SVP and CFO | Mar 5, 2026 | Purchase | 1,280 | $22.55 | $28.9K | 4.5K | Form 4 ↗ |
Cannucciari Christopher director | Mar 2, 2026 | Purchase | 1,300 | $22.05 | $28.7K | 4.4K | Form 4 ↗ |
Hada Tejraj S director | Nov 20, 2005 | Purchase | 1,000 | $21.95 | $21.9K | 29.2K | Form 4 ↗ |
Hada Tejraj S director | Nov 19, 2025 | L-Small | 268 | $21.95 | $5.9K | 28.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Greene County Bancorp, Inc. (GCBC) is primarily owned by institutional investors, who hold approximately 14.1% of total shares outstanding. Company insiders own approximately 59.43%, while retail and public investors account for the remaining 26.48%.
The largest institutional shareholder of Greene County Bancorp, Inc. is BLACKROCK, INC., holding approximately 695,043 shares — equal to 4.08% of outstanding shares — as of September 30, 2025.
A total of 67 institutional investors currently hold GCBC stock, with a combined institutional value of approximately $54,226,129 as of the most recent 13F filing period.
Frequently asked questions
GCBC ownershipGreene County Bancorp, Inc. (GCBC) is primarily owned by institutional investors, who hold approximately 14.1% of shares. The largest shareholder is BLACKROCK, INC. with a 4.08% stake. Company insiders hold 59.43%. Data sourced from SEC Form 13F as of September 30, 2025.