# EDGAR Filing Document

**Accession Number:** 0001766368
**File Stem:** 0001558370-25-009544
**Filing Date:** 2025-7
**Character Count:** 9427
**Document Hash:** 1a1533dd621c2422ff72235ec635afc3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001558370-25-009544.hdr.sgml**: 20250724

**ACCESSION NUMBER**: 0001558370-25-009544

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 14

**CONFORMED PERIOD OF REPORT**: 20250724

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250724

**DATE AS OF CHANGE**: 20250724

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Mayville Engineering Company, Inc.
- **CENTRAL INDEX KEY:** 0001766368
- **STANDARD INDUSTRIAL CLASSIFICATION:** METAL FORGING & STAMPINGS [3460]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 390944729
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38894
- **FILM NUMBER:** 251147371

**BUSINESS ADDRESS:**
- **STREET 1:** 715 SOUTH STREET
- **CITY:** MAYVILLE
- **STATE:** WI
- **ZIP:** 53050
- **BUSINESS PHONE:** 920-387-4500

**MAIL ADDRESS:**
- **STREET 1:** 715 SOUTH STREET
- **CITY:** MAYVILLE
- **STATE:** WI
- **ZIP:** 53050

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Mayville Engineering Comapny, Inc.
- **DATE OF NAME CHANGE:** 20190130

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**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): July 24, 2025**

## Mayville Engineering Company, Inc.
**(Exact name of registrant as specified in its charter)**

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**Wisconsin** | &nbsp;&nbsp;**001-38894** | &nbsp;&nbsp;**39-0944729** |
| **(State or Other Jurisdictionof Incorporation)** | **(CommissionFile Number)** | **(IRS EmployerIdentification No.)** |
|  | **135 S. 84th Street, Suite 300**<br>**Milwaukee, Wisconsin 53214** |  |
|  | **(Address of Principal Executive Offices and zip code)**  |  |

---

**(414) 381-2860** 

**(Registrant's telephone number, including area code)**

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 C.F.R. §230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 C.F.R. §240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 C.F.R. §240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 C.F.R. §240.13e-4(c))

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

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol** | **Name of each exchange on which registered** |
| **Common Stock, no par value** | **MEC** | **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&nbsp;&nbsp;&nbsp;&nbsp;☐

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.&nbsp;&nbsp;&nbsp;&nbsp; ☐

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| | |
|:---|:---|
| **Item 5.02** | **Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.** |

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On July 24, 2025, the Board of Directors of Mayville Engineering Company, Inc. (the "Company") elected Tania L. Wingfield as a Class III director of the Company to serve for a term to expire at the Company's 2026 annual meeting of shareholders. Ms. Wingfield has also been appointed to serve on the Compensation Committee of the Board of Directors.

A copy of the press release announcing the foregoing is filed as Exhibit 99 to this Current Report on Form 8-K and is incorporated by reference herein.

There is no arrangement or understanding between Ms. Wingfield and any other persons pursuant to which Ms. Wingfield was selected as a director.

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| | |
|:---|:---|
| **Item 9.01.**  | **Financial Statements and Exhibits.** |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)Exhibits. The exhibits listed in the exhibit index below are being filed herewith.

#### EXHIBIT INDEX

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| | |
|:---|:---|
| **Exhibit**<br>**Number** | **Description** |
| 99 | [Press Release of Mayville Engineering Company, Inc., dated July 24, 2025.](tmb-20250724xex99d1.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

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**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.

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| | | |
|:---|:---|:---|
|  | MAYVILLE ENGINEERING COMPANY, INC. | MAYVILLE ENGINEERING COMPANY, INC. |
| Date: July 24, 2025 | By: | /s/ Sean P. Leuba |
|  |  | Sean P. Leuba |
|  |  | Senior Vice President, General Counsel and Secretary |

---

## Exhibit 99.1

**Exhibit 99**

![Graphic](tmb-20250724xex99d1001.jpg)

**MAYVILLE ENGINEERING COMPANY ELECTS TANIA WINGFIELD TO BOARD OF DIRECTORS**

**MILWAUKEE, Wis., July 24, 2025** -- Mayville Engineering Company (NYSE: MEC) ("MEC" or the "Company"), a leading U.S.-based provider of design, prototyping, and manufacturing solutions across diverse end markets, today announced the election of Tania Wingfield to its Board of Directors, effective immediately. Ms. Wingfield will serve on the Compensation Committee. The election brings the total number directors on MEC's board to seven.

Ms. Wingfield currently serves as Executive Vice President and Chief Human Resources Officer of BorgWarner, Inc., a global leader in innovative propulsion systems. She brings more than thirty years of experience in manufacturing, operations, engineering, supply chain and business transformation.

"We are honored to welcome Tania to MEC's Board of Directors," said Jag Reddy, MEC's President & CEO. "She brings deep manufacturing expertise, having led operations, supply chains and product development initiatives across global businesses. Her strategic leadership and operational experience will be invaluable as we execute our MBX strategy and focus on delivering long-term value creation."

**ABOUT TANIA WINGFIELD**

Tania Wingfield was appointed Executive Vice President and Chief Human Resources Officer of BorgWarner in August 2022, where she leads global HR strategy, executive compensation, and employee engagement. Prior to this role, she held senior leadership positions including Vice President and General Manager of the North American OE and Aftermarket business, and Vice President of Integration for BorgWarner's acquisition of Delphi Technologies. Prior to joining BorgWarner, Ms. Wingfield served as Vice President of Product Line Marketing, Strategic Planning and Marketing at Remy International. Earlier in her career, Ms. Wingfield held a variety of general management, operations, engineering, and supply chain roles at Remy International, where she started in 1995. She also led global engineering teams, instituted financial discipline in product development, and oversaw multi-continent product launches. Ms. Wingfield holds a Bachelor of Science degree in Computer Science and Management Information Systems from Indiana University of Pennsylvania.

**ABOUT MAYVILLE ENGINEERING COMPANY**

Founded in 1945, MEC is a leading U.S.-based, vertically-integrated, value-added manufacturing partner providing a full suite of manufacturing solutions from concept to production, including design, prototyping and tooling, fabrication, aluminum extrusion, coating, assembly and aftermarket components. Our customers operate in diverse end markets, including heavy- and medium-duty commercial vehicles, construction & access equipment, powersports, agriculture, military and other end markets. Along with process engineering and development services, MEC maintains an extensive manufacturing infrastructure with 27 facilities, of which 26 are in use, across nine states. These facilities make it possible to offer conventional and CNC (computer numerical control) stamping, shearing, fiber laser cutting, forming, drilling, tapping, grinding, tube bending, machining, welding, assembly, and logistic services. MEC also possesses a broad range of finishing capabilities including shot blasting, e-coating, powder coating, wet spray and military grade chemical agent resistant coating (CARC) painting. For more information, please visit www.mecinc.com.

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**INVESTOR CONTACT**

Stefan Neely or Noel Ryan<br>(615) 844-6248<br>MEC@val-adv.com

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