Form 8-K

8-K — RGC RESOURCES INC

Accession: 0001437749-26-017554

Filed: 2026-05-18

Period: 2026-05-18

CIK: 0001069533

SIC: 4923 (NATURAL GAS TRANSMISSION & DISTRIBUTION)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — rgco20260515_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 RGC RESOURCES INVESTOR PRESENTATION (ex_963652.htm)

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8-K — FORM 8-K

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2026-05-18

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): May 18, 2026

RGC RESOURCES, INC.

(Exact name of Registrant as specified in its charter)

Virginia

000-26591

54-1909697

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

519 Kimball Ave., N.E. Roanoke, Virginia

24016

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: 540-777-4427

(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:

☐

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 Each Class

Trading

Symbol

Name of Each Exchange on Which Registered

Common Stock, $5 Par Value

RGCO

NASDAQ Global Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 if the Securities Exchange Act of 1934.

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

RGC Resources, Inc. (the "Company") has updated the presentation management uses in meetings with analysts, investors and other members of the financial community. The slide presentation that will be used by the Company during these meetings and posted on the Company's website is furnished as Exhibit 99.1 to this report.

In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, 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 except as shall be expressly set forth in such a filing.

ITEM 9.01.

FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits

99.1

RGC Resources, Inc. Investor Presentation

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.

RGC RESOURCES, INC.

Date: May 18, 2026

By:

/s/ Timothy J. Mulvaney

Timothy J. Mulvaney

Vice President, Treasurer and Chief Financial Officer

(Principal Financial Officer)

EX-99.1 — EXHIBIT 99.1 RGC RESOURCES INVESTOR PRESENTATION

EX-99.1

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