# EDGAR Filing Document

**Accession Number:** 0001489096
**File Stem:** 0001489096-25-000098
**Filing Date:** 2025-6
**Character Count:** 4538
**Document Hash:** 96d1b13daf6304e997b143def980ba9c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001489096-25-000098.hdr.sgml**: 20250618

**ACCESSION NUMBER**: 0001489096-25-000098

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250618

**DATE AS OF CHANGE**: 20250618

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Thermon Group Holdings, Inc.
- **CENTRAL INDEX KEY:** 0001489096
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRICAL INDUSTRIAL APPARATUS [3620]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 272228185
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35159
- **FILM NUMBER:** 251055823

**BUSINESS ADDRESS:**
- **STREET 1:** 7171 SOUTHWEST PARKWAY
- **STREET 2:** BUILDING 300, SUITE 200
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78735
- **BUSINESS PHONE:** 5126900600

**MAIL ADDRESS:**
- **STREET 1:** 7171 SOUTHWEST PARKWAY
- **STREET 2:** BUILDING 300, SUITE 200
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78735

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, DC 20549**

**SCHEDULE 14A**

**(RULE 14a-101)**

**SCHEDULE 14A INFORMATION**

**Proxy Statement Pursuant to Section 14(a) of**

**the Securities Exchange Act of 1934 (Amendment No.)**

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| | |
|:---|:---|
| Filed by the Registrant 🗹 | Filed by the Registrant 🗹 |
| Filed by a Party other than the Registrant □ | Filed by a Party other than the Registrant □ |
| Check the appropriate box: | Check the appropriate box: |
| □ | Preliminary Proxy Statement |
| □ | **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** |
| □ | Definitive Proxy Statement |
| 🗹 | Definitive Additional Materials |
| □ | Soliciting Material under §240.14a-12 |

---

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| |
|:---|
| **THERMON GROUP HOLDINGS, INC.** |
| (Name of Registrant as Specified in its Charter) |
| (Name of Person(s) Filing Proxy Statement, if other than the Registrant) |
| Payment of Filing Fee (Check the appropriate box): |

---

---

| | |
|:---|:---|
| 🗹 | No fee required. |
| □ | Fee paid previously with preliminary materials. |
| □ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6-(i)(1) and 0-11. |

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THERMON GROUP HOLDINGS, INC. C/O BROADRIDGE CORPORATE ISSUER SERVICES INC. P.O. BOX 1342 BRENTWOOD, NY 11717

You invested in THERMON GROUP HOLDINGS, INC. and it's time to vote!

You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the stockholder meeting to be held on July 28, 2025.

Get informed before you vote

View the Notice & Proxy Statement, 1OK Wrap online OR you can receive a free paper or email copy of the material(s) by requesting prior to July 14, 2025. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy.

Vote in Person at the Meeting\*

July 28, 2025

11 :30 AM CDT

Omni Barton Creek 8212 Barton Club Drive Austin, Texas 78735

\*Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares.

Vote at www.ProxyVote.com

THIS IS NOT A VOTABLE BALLOT

This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters.

Board Voting Items Recommends

1. Election of Directors Nominees: 01) John Clarke 04) Marcus George 07) Bruce Thames 02) Linda Dalgetty 05) Victor Richey 03) Roger Fix 06) Angela Strzelecki 0 For

2. To ratify the appointment of KPMG LLP as the Company's independent registered public accounting firm for the fiscal year ending March 31, 2026. 0 For

3. To approve, on a non-binding advisory basis, the compensation of the Company's executive officers as described in the Proxy Statement. O For

NOTE: Such other business as may properly come before the meeting or any adjournment thereof.

Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings".

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