GCBC director buys 4,121 shares via 401(k)

GREENE COUNTY BANCORP INC director John Brust made open-market purchases of Common Stock through a 401(k) account.

Rhea-AI Filing Summary

GREENE COUNTY BANCORP INC director John Brust made open-market purchases of Common Stock through a 401(k) account. Across three transactions on April 27–28, 2026, the account bought a total of 4,121 shares at prices between $24.05 and $24.50 per share. Following these trades, Brust’s indirect 401(k) holdings in the company’s stock increased to 6,221 shares, reflecting incremental accumulation rather than any sale activity.

Insights

Bank equity analyst

Director John Brust made routine open-market share purchases through a 401(k) plan.

GREENE COUNTY BANCORP INC director John Brust executed three open-market purchases of Common Stock via a 401(k) account. He acquired a combined 4,121 shares at prices around $24 per share, with no related sales reported in this filing.

All transactions are coded as open-market purchases, a strong buy signal type, though the filing does not provide company-level financial context. After these trades, Brust’s indirect 401(k) position totals 6,221 shares, suggesting incremental accumulation rather than a major repositioning.

Insider Trade Summary

Net Buyer: 4,121 shares

Net Buy 3 txns

Insider Brust John

Role Director

Bought 4,121 shs ($100K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,041	$24.50	$50K
Purchase	Common Stock	1,040	$24.05	$25K
Purchase	Common Stock	1,040	$24.06	$25K

Holdings After Transaction: Common Stock — 6,221 shares (Indirect, By 401(k))

Key Figures

Total shares bought: 4,121 shares First purchase size: 1,040 shares Second purchase size: 1,040 shares +3 more

6 metrics

Total shares bought 4,121 shares Open-market purchases through 401(k) on April 27–28, 2026

First purchase size 1,040 shares Common Stock bought on April 27, 2026 at $24.05

Second purchase size 1,040 shares Common Stock bought on April 27, 2026 at $24.06

Third purchase size 2,041 shares Common Stock bought on April 28, 2026 at $24.50

Post-transaction holdings 6,221 shares Indirect 401(k) holdings after April 28, 2026 trade

Purchase price range $24.05–$24.50 per share Prices paid across three open-market buys

Key Terms

open-market purchase, indirect ownership, 401(k), non-derivative

4 terms

open-market purchase financial

"transaction_action: open-market purchase"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

indirect ownership financial

"ownership_type: indirect, nature_of_ownership: By 401(k)"

401(k) financial

"nature_of_ownership: By 401(k)"

A 401(k) is a type of retirement savings plan offered by employers that allows workers to set aside a portion of their paycheck before taxes are taken out. The money saved in a 401(k) can grow over time through investments, helping individuals build funds for their future retirement. It matters to investors because it provides a tax-advantaged way to save and invest for long-term financial security.

non-derivative financial

"transaction_type: non-derivative"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did GCBC director John Brust report?

Director John Brust reported buying 4,121 shares of Greene County Bancorp Common Stock through a 401(k) account. The trades were open-market purchases over two days, at prices slightly above $24 per share, with no sales disclosed in this filing.

At what prices did John Brust buy Greene County Bancorp (GCBC) shares?

John Brust’s 401(k) account bought GCBC Common Stock at $24.05, $24.06, and $24.50 per share. These were open-market purchases, indicating he was willing to commit additional capital at roughly the mid‑$24 price level.

How many GCBC shares does John Brust hold after these Form 4 transactions?

After the reported trades, John Brust’s 401(k) account holds 6,221 GCBC shares indirectly. This reflects the cumulative effect of buying 4,121 shares across three open-market transactions, with the filing showing no corresponding sales or derivative exercises.

Were John Brust’s GCBC trades direct or through a retirement plan?

The transactions were indirect holdings labeled “By 401(k),” meaning the shares are held in a 401(k) retirement plan linked to John Brust. He is still the reporting person, but ownership is through that plan rather than a standard brokerage account.

Does this GCBC Form 4 show any stock option exercises or derivative trades?

No. The Form 4 lists only non-derivative Common Stock purchases, coded as open-market buys. The derivative summary is empty, indicating no reported option exercises, warrant activity, or other derivative transactions in this particular filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/28/2026 - 03:34 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Brust John

(Last) (First) (Middle)

302 MAIN STREET

(Street)

CATSKILL NEW YORK 12414

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GREENE COUNTY BANCORP INC [ GCBC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/27/2026		P		1,040	A	$24.05	3,140	I	By 401(k)
Common Stock	04/27/2026		P		1,040	A	$24.06	4,180	I	By 401(k)
Common Stock	04/28/2026		P		2,041	A	$24.5	6,221	I	By 401(k)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ John Brust	04/28/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)