UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): ~~January~~March 209, 2026

GREENE COUNTY BANCORP, INC.

(Exact Name of Registrant as Specified in its Charter)

United States of America	0-25165	14-1809721
United States	0-25165	14-1809721
(State or Other Jurisdiction of Incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)

302 Main Street, Catskill NY		12414
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (518) 943-2600

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of class	Trading symbol	~~Trading~~Name ~~symbol~~of exchange on which registered		~~Name of exchange on which registered Common~~
Common Stock, $0.10 par value	GCBC	~~GCBC~~The Nasdaq Stock Market		~~The Nasdaq Stock Market~~

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 87.01 ~~Other~~Regulation ~~Events~~FD Disclosure

OnThe ~~January~~management ~~21,~~of ~~2026,~~ Greene County Bancorp, Inc. (~~NASDAQ-GCBC~~the “Company”) ~~today~~intends ~~announced~~to ~~that~~participate ~~its~~in ~~Board~~meetings ofwith ~~Directors~~institutional ~~has~~investors ~~approved~~and aother ~~quarterly~~interested parties ~~cash~~during ~~dividend~~the first quarter of ~~$0.10~~2026 ~~per~~to ~~share~~discuss on the Company’s ~~common~~strategies, ~~stock.~~recent ~~The dividend reflects an annual cash dividend rate of $0.40 per share~~performance, ~~which~~and ~~is the same rate as the dividend declared during the previous quarter~~trends.

AThe ~~press~~investor ~~release~~presentation ~~announcing~~prepared by the ~~details~~Company offor ~~the~~use ~~dividend~~in ~~declaration~~these meetings is ~~filed~~available ason ~~exhibit~~the 99Company’s website at www.1thebankofgreenecounty.com under Investor Relations and “Events & Presentations.” Investors should note that the Company announces material information in Securities and Exchange Commission (the “SEC”) filings and press releases.

~~Greene~~This ~~County~~investor ~~Bancorp,~~presentation ~~MHC~~is ~~(the~~furnished ~~“MHC”),~~pursuant ~~the~~to ~~mutual~~Item ~~holding~~7.01 ~~company~~of Form 8-K and ~~majority~~shall ~~stockholder~~not ofbe deemed to be “filed” for the ~~Company,~~purposes ~~and~~of ~~owner~~Section 18 of ~~9,218,528~~the Securities ~~shares~~Exchange Act of 1934 (the ~~Company’s~~“Exchange 17Act”),~~026~~ as amended,~~828 total~~ ~~shares~~or ofotherwise ~~common~~subject ~~stock~~to ~~outstanding~~the liabilities of that section, ~~has~~nor ~~historically~~shall ~~waived~~it ~~its~~be ~~right~~deemed toincorporated ~~receive~~by ~~cash~~reference ~~dividends~~in ~~from~~any ~~the~~filing ~~Company. However,~~under ~~for~~the ~~purposes~~Securities Act of ~~cash~~1933, ~~flow~~as amended, or the ~~MHC~~Exchange Act, ~~does~~whether ~~not~~made ~~intend~~before toor ~~waive~~after ~~its~~the ~~receipt~~date of ~~these~~this ~~dividends~~report, toexcept beas ~~paid~~shall bybe ~~the~~expressly ~~Company for~~set ~~the~~forth ~~quarter~~by ~~ended~~specific ~~December~~reference ~~31,~~in ~~2025~~such filing.

~~Item~~The ~~9.01~~investor ~~Financial~~presentation ~~Statements~~is ~~and~~furnished ~~Exhibits~~as Exhibit 99.1 to this report.

	Exhibit No.	Description
	99.1	Press release dated January 21, 2026

Item 9.01.

Financial Statements and Exhibits

Exhibit Number	Description
Exhibit No.	Description
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)
99.1	Investor Presentation December 2025

Exhibit Number Description

104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

GREENE COUNTY BANCORP, INC.

	GREENE COUNTY BANCORP, INC.

DATE: March 9, 2026	By:	/s/ Donald E. Gibson
	Donald E. Gibson
	President and Chief Executive Officer

DATE: January 21, 2026 By: /s/ Donald E. Gibson

Donald E. Gibson President & Chief Executive Officer

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