Form 8-K/A

8-K/A — CORE MOLDING TECHNOLOGIES INC

Accession: 0001026655-26-000067

Filed: 2026-09-28

Period: 2026-09-28

CIK: 0001026655

SIC: 3089 (PLASTICS PRODUCTS, NEC)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Item: Financial Statements and Exhibits

Documents

8-K/A — cmt-20260928.htm (Primary)

EX-99.1 (coopromotionannouncement.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K/A

8-K/A (Primary)

Filename: cmt-20260928.htm · Sequence: 1

cmt-20260928

0001026655trueAmendment to correct the Item number tagging from Item 5.01 to Item 5.02.800 Manor Park DriveColumbusOhio00010266552026-09-282026-09-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 28, 2026

Core Molding Technologies, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-12505

31-1481870

(State or other jurisdiction

incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

800 Manor Park Drive, Columbus, Ohio

43228-0183

(Address of principal executive office)

(Zip Code)

Registrant’s telephone number, including area code: (614) 870-5000

(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, par value $0.01 CMT NYSE American LLC

Preferred Stock purchase rights, par value $0.01 N/A NYSE American LLC

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 ☐

Explanatory Note

This Amendment No. 1 (this "Amendment") amends the Current Report on Form 8-K filed by Core Molding Technologies, Inc. on September 28, 2026 solely to correct on EDGAR filing classification error. Although the disclosure contained in the Original Report was correctly reported under Item 5.02 of Form 8-K, the filing was inadvertently tagged on EDGAR as an Item 5.01 filing. This Amendment is being filed solely to correct the item designation on EDGAR to reference Item 5.02. No other changes have been made to the Original Report.

Item 5.02 Appointment of Certain Officers

Appointment of Chief Operating Officer

On September 28, 2026, Core Molding Technologies, Inc. (the “Company”) announced the promotion of Michael J. Gayford to Chief Operating Officer (“COO”), effective immediately. In his expanded role, Mr. Gayford will assume operational responsibility for the Company’s North American operations and continue to drive operational excellence, overseeing program management, advancing research and development initiatives, and executing strategic programs designed to accelerate growth and improve operational performance.

Mr. Gayford joined the Company in 2023 and has more than 25 years of manufacturing, engineering, and operational leadership experience, including 17 years in composite manufacturing. Since March 2023, Mr. Gayford was promoted to Executive Vice President of Operations in 2025, where he oversaw multi-site manufacturing operations across the United States and Canada, and led the company’s Advanced Manufacturing Engineering and Research and Development Organizations. Mr. Gayford earned his Bachelor of Science in Mechanical Engineering Technology from Alfred State College.

The Company is not aware of any family relationships among Mr. Gayford or any arrangements or understandings pursuant to which those persons have been, or are to be, selected as a director or executive office of the Company, other than arrangements or understandings with directors or executive officers acting solely in his capacity as executive officer.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number Description

99.1

COO Promotion Announcement

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.

CORE MOLDING TECHNOLOGIES, INC.

Date: September 28, 2026 By:

/s/ Alex J. Panda

Name: Alex J. Panda

Title: Executive Vice President, Treasurer, Secretary and Chief Financial Officer

EX-99.1

Filename: coopromotionannouncement.htm · Sequence: 2

Document

Core Molding Technologies Promotes Michael J. Gayford to Chief Operating Officer

COLUMBUS, Ohio, September 28, 2026 - Core Molding Technologies, Inc. (NYSE American: CMT) (“Core Molding,” “Core” or the “Company”), today announced the promotion of Michael J. Gayford to Chief Operating Officer (“COO”), effective immediately.

In his expanded role, Mr. Gayford will assume operational responsibility for the Company’s North American operations, and Arnold Alanis, Executive Vice President of Operations in Mexico, will report to him. Gayford will also continue to focus on driving operational excellence, overseeing program management, advancing research and development initiatives, and executing strategic programs designed to accelerate growth and improve operational performance.

Mr. Gayford joined Core Molding Technologies in 2023 and has more than 25 years of manufacturing, engineering, and operational leadership experience. Throughout his tenure at Core, he has played a key role in strengthening operational execution, advancing technology initiatives, and supporting the Company’s strategic transformation.

"I am pleased to announce Mike Gayford’s promotion to Chief Operating Officer," said Eric Palomaki, President and Chief Executive Officer. "Mike has been instrumental in advancing our operational capabilities and driving meaningful improvements across the organization. His leadership, strategic vision, and commitment to excellence have contributed significantly to our success, and we are confident he will continue to make a positive impact in this expanded role."

“My three years at Core have been exciting, and I am honored to take on this new role,” said Mike Gayford. “I am privileged to work with such a talented team and look forward to advancing operational excellence, delivering value to our customers, and supporting Core’s long-term growth. Together, we are well positioned to build on our momentum and pursue new opportunities.”

Michael J. Gayford joined the company in March 2023 as Vice President of Operations. Mr. Gayford was promoted to Executive Vice President of Operations in 2025, where he oversaw multi-site manufacturing operations across the United States and Canada, and led the company’s Advanced Manufacturing Engineering and Research and Development Organizations. Mr. Gayford has more than 25 years of experience in engineering, manufacturing, and operational leadership, including more than 17 years in composite manufacturing. Mr. Gayford earned his Bachelor of Science in Mechanical Engineering Technology from Alfred State College.

About Core Molding Technologies, Inc.

Core Molding Technologies is a leading engineered materials company specializing in molded structural products, principally in medium- and heavy-duty truck, powersports, building products, and industrial and utility industries across the United States, Canada, and Mexico. The Company operates in one operating segment as a molder of thermoplastic and thermoset structural products. The Company’s operating segment consists of one reporting unit, Core Molding Technologies. The Company offers customers a wide range of manufacturing processes to fit various program volume and investment requirements. These thermoset processes include compression molding of sheet molding compound (“SMC”), resin transfer molding (“RTM”), liquid molding of dicyclopentadiene (“DCPD”), spray-up and hand-lay-up. The thermoplastic processes include direct long-fiber thermoplastics (“DLFT”) and structural foam and structural web injection molding. Core Molding Technologies serves a wide variety of markets, including the medium and heavy-duty truck, marine, automotive, agriculture, construction, and other commercial products. The demand for Core Molding Technologies’ products is affected by economic conditions in

the United States, Mexico, and Canada. Core Molding Technologies’ operations may change proportionately more than revenues from operations.

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the federal securities laws that are subject to risks and uncertainties. These statements often include words such as “believe”, “anticipate”, “plan”, “expect”, “intend”, “will”, “should”, “could”, “would”, “project”, “continue”, “likely”, and similar expressions. In particular, this press release may contain forward-looking statements about the Company’s expectations for future periods with respect to its plans to improve financial results, the future of the Company’s end markets. Factors that could cause actual results to differ from those reflected in forward-looking statements relating to our operations and business include: dependence on certain major customers, and potential loss of any major customer due to completion of existing production programs or otherwise; business conditions in the plastics, transportation, power sports, utilities and commercial product industries (including changes in demand for production); the availability and price increases of raw material,; general macroeconomic, social, regulatory and political conditions, including uncertainties surrounding volatility in financial markets; the imposition of new or increased tariffs and the resulting consequences; safety and security conditions in Mexico; costs and other resources related to Core Molding Technologies' efforts to expand its customer base and grow its business, and provide on-time delivery to customers; ; the Company’s decision to pursue new products and initiatives to quote and execute manufacturing processes for new business, acquire raw materials, address inflationary pressures, regulatory matters and labor relations; the ability to successfully identify, evaluate and manage potential acquisitions and to benefit from and properly integrate any completed acquisitions; the Company’s financial position or other financial information; inadequate insurance coverage to protect against potential hazards; equipment and machinery failure; product liability and warranty claims; cybersecurity incidents or other similar disruptions; and other risks and uncertainties described in the Company’s filings with the SEC. These statements are based on certain assumptions that the Company has made in light of its experience as well as its perspective on historical trends, current conditions, expected future developments and other factors it believes are appropriate under the circumstances. Actual results may differ materially from the anticipated results because of certain risks and uncertainties, including those included in the Company’s filings with the SEC. There can be no assurance that statements made in this press release relating to future events will be achieved. The Company undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time. All subsequent written and oral forward-looking statements attributable to the Company or persons acting on behalf of the Company are expressly qualified in their entirety by such cautionary statements.

Company Contact:

Core Molding Technologies, Inc.

Alex Panda

Executive Vice President & Chief Financial Officer

apanda@coremt.com

Investor Relations Contact:

Three Part Advisors, LLC

Sandy Martin or Steven Hooser

214-616-2207

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 7

v3.26.3

Cover Page

Sep. 28, 2026

Cover [Abstract]

Document Type

8-K/A

Document Period End Date

Sep. 28, 2026

Entity Registrant Name

Core Molding Technologies, Inc.

Entity Incorporation, State or Country Code

Entity File Number

001-12505

Entity Tax Identification Number

31-1481870

Entity Address, Address Line One

800 Manor Park Drive

Entity Address, City or Town

Columbus

Entity Address, State or Province

Entity Address, Postal Zip Code

43228-0183

City Area Code

614

Local Phone Number

870-5000

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock, par value $0.01

Trading Symbol

CMT

Security Exchange Name

NYSEAMER

Entity Emerging Growth Company

false

Entity Central Index Key

0001026655

Amendment Flag

true

Amendment Description

Amendment to correct the Item number tagging from Item 5.01 to Item 5.02.

- Definition

Description of changes contained within amended document.

+ References

No definition available.

+ Details

Name:

dei_AmendmentDescription

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration