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 23, 2026

THERMON GROUP HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

Delaware		001-35159		27-2228185
(State or other jurisdiction of incorporation )		(Commission File Number)		(I.R.S. Employer Identification Number)

7171 Southwest Parkway Building 300, Suite 200
Austin TX		78735
(Address of principal executive offices)		(Zip code)

Registrant’s telephone number, including area code: (512) 690-0600

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:

¨	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 (s)		Name of each exchange on which registered
Common Stock, $0.001 par value per share		THR		New York Stock Exchange

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.

On March 23, 2026, Thermon Group Holdings, Inc. (NYSE: THR) (the "Company") posted an updated investor presentation to its website. The presentation, entitled “THR Investor Presentation (Mar 2026),” is posted and may be found on the Company’s investor relations website at: https://ir.thermon.com.

The information in this Current Report on Form 8-K is being “furnished” pursuant to Item 7.01 and shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, and is not incorporated by reference into any Company filing, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

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 thereunto duly authorized.

	THERMON GROUP HOLDINGS, INC. (registrant)

Date: March 23, 2026	By:	/s/ Ryan Tarkington
	Name:	Ryan Tarkington
	Title:	Senior Vice President, General Counsel & Corporate Secretary

Thermon Group Holdings Inc. filed SEC Form 8-K: Regulation FD Disclosure