Skip to content

Nasdaq · CIK 0001070524

GCBC GREENE COUNTY BANCORP INC

Insider trading from SEC Form 4. Last filing Jun 15, 2026. Close $33.65 on Oct 9, 2026, +59% from the 52-week low and -7% from the high.

In brief

GREENE COUNTY BANCORP INC (GCBC) has 25 SEC Form 4 filings on file from 9 insiders, the latest filed on Jun 15, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

24 open-market trades have been scored at GCBC. The newest: Michelle M Plummer (director) sold $288k of stock on Jun 11, 2026, filed Jun 15, 2026, scored 29 (weak). 3 insiders bought within 14 days of each other around Mar 17, 2026.

1 Form 144 notice of planned sales is on file, the latest filed Jun 11, 2026.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
9
with a Form 4 at this company

Price and insider trades, last year

GCBCOct 9, 2026 · close 33.65

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at GREENE COUNTY BANCORP INC, scored.

ScoreInsiderValueHoldingsPrice contextFiled
29WeakMichelle M Plummer
director
sell
$288k
10,000 shares
-9%+38% from low0% from high
35WeakJohn Brust
director
buy
$100k
4,121 shares
+196%+15% from low-5% from high
57ModerateTejraj S Hada
director
buy
$132k
6,000 shares
+20%+7% from low-15% from high
48ModeratePeter W. Hogan
director
buy
$66k
3,000 shares
+4%+7% from low-14% from high
58ModerateNick Barzee
SVP and CFO
buy
$29k
1,280 shares
+40%+9% from low-14% from high
34WeakChristopher Cannucciari
director
buy
$29k
1,300 shares
+42%+11% from low-13% from high
15WeakTejraj S Hada
director
buy
$22k
1,000 shares
+4%-
53ModerateJohn Antalek
EVP and CLO
buy
$33k
1,500 shares
+25%+7% from low-31% from high
57ModerateTejraj S Hada
director
buy
$66k
3,000 shares
+12%+7% from low-31% from high
46ModerateTejraj S Hada
director
buy
$8,052
366 shares
+1%+8% from low-34% from high
62NotableTejraj S Hada
director
buy
$35k
1,545 shares
+7%+8% from low-36% from high
48ModerateTejraj S Hada
director
buy
$5,123
235 shares
+1%+8% from low-35% from high
63NotableChristopher Cannucciari
director
buy
$26k
1,129 shares
+58%+10% from low-35% from high
66NotableDonald E Gibson
President and CEO
buy
$22k
1,000 shares
-+6% from low-37% from high
51ModerateJay P. Cahalan
director
buy
$98k
4,300 shares
+14%+11% from low-34% from high
53ModerateTejraj S Hada
director
buy
$161k
7,000 shares
+45%+11% from low-34% from high
54ModerateChristopher Cannucciari
director
buy
$10k
471 shares
+31%+6% from low-36% from high
54ModerateChristopher Cannucciari
director
buy
$10k
471 shares
+31%+6% from low-36% from high
68NotableNick Barzee
SVP and CFO
buy
$32k
1,500 shares
+86%+7% from low-36% from high
36WeakTejraj S Hada
director
buy
$164k
7,000 shares
+80%-
28WeakJay P. Cahalan
director
buy
$100k
3,744 shares
+14%-
32WeakNick Barzee
SVP and CFO
buy
$22k
840 shares
+93%-
36WeakTejraj S Hada
director
buy
$56k
2,000 shares
+30%-
45ModerateNick Barzee
SVP and CFO
buy
$25k
892 shares
first purchase-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Jun 11, 2026 Plummer, Michelle M. (GCBC)
Director
10,000
0.06% of outstanding
$282kJun 11, 2026none

Transactions

The newest 50 of 53 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Jun 11, 2026Michelle M Plummer
director
SOpen-market sale
Common Stock
-10,000$28.77$288k99,560Jun 15, 2026
Apr 27, 2026John Brust
director
POpen-market purchase
Common Stockindirect: By 401(k)
+1,040$24.05$25k3,140Apr 28, 2026
Apr 27, 2026John Brust
director
POpen-market purchase
Common Stockindirect: By 401(k)
+1,040$24.06$25k4,180Apr 28, 2026
Apr 28, 2026John Brust
director
POpen-market purchase
Common Stockindirect: By 401(k)
+2,041$24.50$50k6,221Apr 28, 2026
Mar 17, 2026Tejraj S Hada
director
POpen-market purchase
Common Stock
+2,000$21.99$44k31,427Mar 18, 2026
Mar 18, 2026Peter W. Hogan
director
POpen-market purchase
Common Stockindirect: By 401(k)
+3,000$22.10$66k75,000Mar 18, 2026
Mar 18, 2026Tejraj S Hada
director
POpen-market purchase
Common Stock
+4,000$21.95$88k35,427Mar 18, 2026
Mar 5, 2026Nick Barzee
SVP and CFO
POpen-market purchase
Common Stockindirect: By 401(k)
+1,280$22.55$29k4,520Mar 5, 2026
Mar 2, 2026Christopher Cannucciari
director
POpen-market purchase
Common Stock
+1,300$22.05$29k4,378Mar 3, 2026
Nov 19, 2025Tejraj S Hada
director
LSmall acquisition
Common Stock
+268$21.95$5,88328,191Nov 24, 2025
Nov 20, 2005Tejraj S Hada
director
POpen-market purchase
Common Stock
+1,000$21.95$22k29,191Nov 24, 2025
Nov 18, 2025John Antalek
EVP and CLO
POpen-market purchase
Common Stockindirect: By 401(k)
+1,500$22.00$33k7,567Nov 19, 2025
Nov 18, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+3,000$21.96$66k27,923Nov 19, 2025
Nov 14, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+366$22.00$8,05224,923Nov 17, 2025
Nov 4, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+45$22.20$99923,057Nov 6, 2025
Nov 5, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+1,500$22.52$34k24,557Nov 6, 2025
Nov 3, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+235$21.80$5,12323,012Nov 4, 2025
Oct 29, 2025Donald E Gibson
President and CEO
POpen-market purchase
Common Stockindirect: 401(k)
+500$22.00$11k500Oct 30, 2025
Oct 28, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+706$22.91$16k2,655Oct 30, 2025
Oct 29, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+423$22.79$9,6403,078Oct 30, 2025
Oct 29, 2025Donald E Gibson
President and CEO
POpen-market purchase
Common Stockindirect: 401(k)
+500$21.75$11k1,000Oct 30, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+150$22.69$3,40431,274Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+600$22.75$14k31,874Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+101$22.78$2,30131,975Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+1,700$22.82$39k33,675Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+27$22.60$61033,702Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+10$22.62$22633,712Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+500$22.67$11k34,212Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+402$22.72$9,13334,614Oct 24, 2025
Oct 24, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+810$22.58$18k35,424Oct 24, 2025
Jun 11, 2025Donald E Gibson
President and CEO
GGift
Common Stock
-125,100$0.00$00Jun 11, 2025
Jun 11, 2025Donald E Gibson
President and CEO
GGift
Common Stockindirect: By Trust
+125,100$0.00$0125,100Jun 11, 2025
May 14, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+6,612$22.95$152k22,318May 15, 2025
May 15, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+388$22.95$8,90522,706May 15, 2025
May 1, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+290$22.20$6,4381,806May 5, 2025
May 1, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+290$22.20$6,4381,806May 5, 2025
May 2, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+105$22.33$2,3451,911May 5, 2025
May 2, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+105$22.33$2,3451,911May 5, 2025
May 5, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+38$22.50$8551,949May 5, 2025
May 5, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stock
+38$22.50$8551,949May 5, 2025
May 2, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stockindirect: As custodian for children
+28$22.33$62528May 5, 2025
May 2, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stockindirect: As custodian for children
+28$22.33$62528May 5, 2025
May 5, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stockindirect: As custodian for children
+10$22.50$22538May 5, 2025
May 2, 2025Christopher Cannucciari
director
POpen-market purchase
Common Stockindirect: As custodian for children
+10$22.50$22538May 5, 2025
Apr 25, 2025Nick Barzee
SVP and CFO
POpen-market purchase
Common Stockindirect: By 401(k)
+1,500$21.50$32k3,240Apr 25, 2025
Mar 19, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+4,000$23.50$94k12,706Mar 20, 2025
Mar 19, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+1,000$23.26$23k13,706Mar 20, 2025
Mar 19, 2025Tejraj S Hada
director
POpen-market purchase
Common Stock
+2,000$23.25$47k15,706Mar 20, 2025
Feb 27, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+1,944$26.45$51k29,324Mar 3, 2025
Feb 28, 2025Jay P. Cahalan
director
POpen-market purchase
Common Stock
+1,800$26.94$48k31,124Mar 3, 2025
50 of 53 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about GCBC

Answered from the filings on this page, as of the latest one.

Are insiders buying GCBC?

No. In the last 90 days no insider at GREENE COUNTY BANCORP INC bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade GCBC on the open market?

Michelle M Plummer (director) sold $288k of GCBC on Jun 11, 2026 and filed the Form 4 on Jun 15, 2026. InsiderTell scored 29 (weak).

How many insiders file Form 4 at GREENE COUNTY BANCORP INC?

9 people have filed a Form 4 at GREENE COUNTY BANCORP INC, among them John Antalek (EVP and CLO), Nick Barzee (SVP and CFO), John Brust (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

GCBC insider trading: GREENE COUNTY BANCORP INC | InsiderTell