Greene County Bancorp, Inc. (GCBC) Insider Trading
Over the last 3 months, GCBC insiders made 0 open-market buys and 1 sale, a net sale of -$288K (SEC Form 4). Over the last 6 months, 21 institutions increased and 33 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$287.7K
Insider trades by month Buys Sells
May
Oct
Nov
Mar
Apr
Jun
Context3-month price +32.5%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 15, 2026 | PLUMMER MICHELLE Mdirector | Sell | 10,000 | $28.77 |
| Apr 28, 2026 | Brust Johndirector | Buy | 2,041 | $24.50 |
| Apr 28, 2026 | Brust Johndirector | Buy | 1,040 | $24.05 |
| Mar 5, 2026 | Barzee Nickofficer: SVP and CFO | Buy | 1,280 | $22.55 |
| Nov 24, 2025 | Hada Tejraj Sdirector | Buy | 1,000 | $21.95 |
| Nov 19, 2025 | Antalek Johnofficer: EVP and CLO | Buy | 1,500 | $22.00 |
| Nov 19, 2025 | Hada Tejraj Sdirector | Buy | 3,000 | $21.96 |
| Nov 17, 2025 | Hada Tejraj Sdirector | Buy | 366 | $22.00 |
| Nov 6, 2025 | Hada Tejraj Sdirector | Buy | 1,500 | $22.52 |
| Nov 6, 2025 | Hada Tejraj Sdirector | Buy | 45 | $22.20 |
| Nov 4, 2025 | Hada Tejraj Sdirector | Buy | 235 | $21.80 |
| Oct 30, 2025 | Gibson Donald Edirector, officer: President and CEO | Buy | 500 | $21.75 |
| Oct 30, 2025 | Cannucciari Christopherdirector | Buy | 423 | $22.79 |
| Oct 30, 2025 | Cannucciari Christopherdirector | Buy | 706 | $22.91 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 27 | $22.60 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 1,700 | $22.82 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 101 | $22.78 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 600 | $22.75 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 150 | $22.69 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 10 | $22.62 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 500 | $22.67 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 402 | $22.72 |
| Oct 24, 2025 | Cahalan Jay P.director | Buy | 810 | $22.58 |
| May 15, 2025 | Hada Tejraj Sdirector | Buy | 388 | $22.95 |
| May 15, 2025 | Hada Tejraj Sdirector | Buy | 6,612 | $22.95 |
| May 5, 2025 | Cannucciari Christopherdirector | Buy | 28 | $22.33 |
| May 5, 2025 | Cannucciari Christopherdirector | Buy | 290 | $22.20 |
| May 5, 2025 | Cannucciari Christopherdirector | Buy | 105 | $22.33 |
| May 5, 2025 | Cannucciari Christopherdirector | Buy | 38 | $22.50 |
| May 5, 2025 | Cannucciari Christopherdirector | Buy | 10 | $22.50 |
Source: GCBC SEC Form 4 filings, latest Jun 15, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their GCBC positions over the last 6 months (SEC Form 13F).
Increased
21
New positions
12
Reduced
33
Sold out
74
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 678K | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 298K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 167K | May 15, 2026 |
| STATE STREET CORP | Increased | 129K | May 15, 2026 |
| NEWEDGE ADVISORS, LLC | Reduced | 109K | Jun 3, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 93K | May 7, 2026 |
| COVALENT PARTNERS LLC | Increased | 69K | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 68K | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 66K | Mar 25, 2026 |
| ANGEL OAK CAPITAL ADVISORS, LLC | Increased | 61K | May 12, 2026 |
| VANGUARD FIDUCIARY TRUST CO | New Position | 52K | May 8, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 51K | May 14, 2026 |
| NORTHERN TRUST CORP | Increased | 51K | May 14, 2026 |
| LPL FINANCIAL LLC | Increased | 43K | May 6, 2026 |
| HSBC HOLDINGS PLC | Reduced | 42K | Apr 30, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.