🕵️ Greene County Bancorp Inc ($GCBC)
SEC insider & ownership activity, last 12 months · CIK 1070524 · every row links its SEC filing
Over the last 12 months insiders sold $288K against $670K of open-market buying. Plummer, Michelle M. (GCBC) sold $288K in discretionary trades (Jun). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
8 buyers, $670K (28 lots) · 1 seller, $288K (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Plummer, Michelle M. (GCBC) | 0 | – | 1 | $288K | Jun 11, 2026 |
| Tejraj S. Hada | 8 | $268K | 0 | – | Mar 18, 2026 |
| Brust John | 3 | $100K | 0 | – | Apr 28, 2026 |
| Jay P. Cahalan | 9 | $98K | 0 | – | Oct 24, 2025 |
| Peter W. Hogan | 1 | $66K | 0 | – | Mar 18, 2026 |
| Cannucciari Christopher | 3 | $54K | 0 | – | Mar 2, 2026 |
| Antalek John | 1 | $33K | 0 | – | Nov 18, 2025 |
| Barzee Nick | 1 | $29K | 0 | – | Mar 5, 2026 |
| Donald E. Gibson | 2 | $22K | 0 | – | Oct 29, 2025 |
5%+ holders
No current 5%+ beneficial-ownership positions on file.
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Plummer, Michelle M. (GCBC) | $282K | Jun 11, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 23, 2026 | filing ↗ |
| Other events (8.01) | Jul 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 21, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 22, 2026 | filing ↗ |
| Earnings (2.02) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Other events (8.01) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Other events (8.01) | Apr 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 15, 2026 | filing ↗ |
| Other events (8.01) | Mar 19, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 9, 2026 | filing ↗ |
| Earnings (2.02) | Jan 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 21, 2026 | filing ↗ |
| Other events (8.01) | Jan 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 20, 2026 | filing ↗ |
| Shareholder vote (5.07) | Nov 1, 2025 | filing ↗ |
| Other events (8.01) | Nov 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 1, 2025 | filing ↗ |
| Other events (8.01) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |
| Earnings (2.02) | Oct 21, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 21, 2025 | filing ↗ |
| Other events (8.01) | Oct 1, 2025 | filing ↗ |