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): March 9, 2026

GREENE COUNTY BANCORP, INC.

(Exact Name of Registrant as Specified in its Charter)

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	Name of exchange on which registered
Common Stock, $0.10 par value	GCBC	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 7.01

Regulation FD Disclosure

The management of Greene County Bancorp, Inc. (the “Company”) intends to participate in meetings with institutional investors and other interested parties during the first quarter of 2026 to discuss the Company’s strategies, recent performance, and trends.

The investor presentation prepared by the Company for use in these meetings is available on the Company’s website at www.thebankofgreenecounty.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.

This investor presentation is furnished pursuant to Item 7.01 of Form 8-K and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”), as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date of this report, except as shall be expressly set forth by specific reference in such filing.

The investor presentation is furnished as Exhibit 99.1 to this report.

Item 9.01.

Financial Statements and Exhibits

Exhibit No.	Description

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.

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

Greene County Bancorp Inc. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits