Gibson Donald E, President and CEO of Greene County Bancorp Inc. ($GCBC), made two open market purchases of company shares over the past year, totaling about $22,000. His most recent buy occurred on October 29, 2025. These purchases rank 3,749th among 4,983 individual insiders, where the average buy amounts to roughly $1.5 million across about 3.3 transactions. Gibson Donald E reported no open market sales in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct. 29, 2025 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | P | Common Stock | 500 | $22.00 | 170,695.0000 | 17,026,828 | 0.29% | 0.00% |
| Oct. 29, 2025 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | P | Common Stock | 500 | $21.75 | 171,195.0000 | 17,026,828 | 0.29% | 0.00% |
| June 11, 2025 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | G | Common Stock | 125100 | $0.00 | 169,496.0000 | 17,026,828 | 42.46% | 0.73% |
| June 11, 2025 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | G | Common Stock | 125100 | $0.00 | 169,496.0000 | 17,026,828 | 281.78% | 0.73% |
| Aug. 14, 2023 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | S | Common Stock | 537 | $35.70 | 167,730.0000 | 17,026,828 | 0.32% | 0.00% |
| Aug. 4, 2023 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | S | Common Stock | 1892 | $34.50 | 170,031.0000 | 17,026,828 | 1.10% | 0.01% |
| Aug. 4, 2023 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | S | Common Stock | 1764 | $34.75 | 168,267.0000 | 17,026,828 | 1.04% | 0.01% |
| July 28, 2023 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | S | Common Stock | 90 | $34.50 | 171,941.0000 | 17,026,828 | 0.05% | 0.00% |
| July 31, 2023 | GREENE COUNTY BANCORP INC | $GCBC | Gibson Donald E | President and CEO | S | Common Stock | 18 | $34.50 | 171,923.0000 | 17,026,828 | 0.01% | 0.00% |