M-tron Industries (NYSE: MPTI) amends rights offering document

Rhea-AI Filing Summary

M-tron Industries, Inc. filed an amendment to update materials related to its offering of transferable subscription rights. The change replaces Exhibit 4.2, the Instructions for use of Subscription Right Certificate, to correct a typographical error. All other aspects of the prior report remain unchanged.

8-K Event Classification

Item 9.01 — Financial Statements and Exhibits

1 item

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Terms

transferable subscription rights, Instructions for use of Subscription Right Certificate, Inline XBRL, Emerging growth company

4 terms

transferable subscription rights financial

"with respect to the Company’s offering of transferable subscription rights."

Instructions for use of Subscription Right Certificate financial

"A copy of the Instructions for use of Subscription Rights Certificates was attached"

Inline XBRL technical

"Cover Page Interactive Data File (embedded within the Inline XBRL document)."

Inline XBRL is a file format for financial filings that embeds machine-readable data tags directly inside the human-readable report, so the same document can be read by people and parsed by software. For investors it makes extracting, comparing and verifying financial numbers faster and more reliable—like a grocery list where each item also has a barcode—reducing manual errors and speeding up analysis.

Emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Understanding 8-K Material Events →

[2026-03] Mtron - Form 8-K/A - Rights Offering Update true 0001902314 0001902314 2026-03-30 2026-03-30

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): March 31, 2026 (March 30, 2026)

M-tron Industries, Inc.

(Exact Name of Registrant as Specified in Charter)

Delaware	001-41391	46-0457994
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

2525 Shader Road, Orlando, FL		32804
(Address of Principal Executive Offices)		(Zip Code)

(407) 298-2000

Registrant’s Telephone Number, Including Area Code

(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		MPTI		NYSE American

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 on Form 8-K/A (this “Amendment”)  is being filed to amend the Current Report on Form 8-K filed by M-tron Industries, Inc. (the “Company”) with the Securities and Exchange Commission on March 30, 2026 (the “Original Form 8-K”) with respect to the Company’s offering of transferable subscription rights. A copy of the Instructions for use of Subscription Rights Certificates was attached to the Original Form 8-K as Exhibit 4.2. Subsequent to the filing of the Original Form 8-K, it was discovered that Exhibit 4.2 contained a typographical error. This Amendment provides a corrected version of Exhibit 4.2. This Amendment does not amend any other item of the Original Form 8-K. Except as noted herein, the Original Form 8-K remains unchanged. 

Item 9.01. Financial Statements and Exhibits

(d)         Exhibits

Exhibit No.	Description
4.2	Instructions for use of Subscription Right Certificate.
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.

	M-TRON INDUSTRIES, INC.
	(Registrant)
Date:     March 31, 2026	By:	/s/ Cameron Pforr
		Name:	Cameron Pforr
		Title:	Chief Executive Officer and Chief Financial Officer

FAQ

What did MPTI change in this amended filing?

M-tron Industries, Inc. corrected a typographical error in Exhibit 4.2, which contains the Instructions for use of Subscription Right Certificate. The amendment replaces that exhibit while leaving all other parts of the prior report unchanged.

Does this MPTI amendment change the transferable subscription rights offering?

The amendment does not change the transferable subscription rights offering terms. It only corrects a typographical error in the instructions document (Exhibit 4.2) attached to the earlier report, with all other items of the original filing remaining the same.

Which exhibit did MPTI replace in this amendment?

M-tron Industries, Inc. replaced Exhibit 4.2, titled Instructions for use of Subscription Right Certificate. The company discovered a typographical error in that exhibit after the original report and submitted this amendment to provide a corrected version.

Does the MPTI 8-K/A include any new financial results?

The amended report does not introduce new financial results. Its purpose is limited to providing a corrected Exhibit 4.2 for the transferable subscription rights instructions, while expressly stating that all other items of the original report remain unchanged.

Why did MPTI file its Amendment No. 1 on March 31, 2026?

M-tron Industries, Inc. filed Amendment No. 1 after discovering a typographical error in Exhibit 4.2 to its March 30, 2026 report. The amendment supplies the corrected Instructions for use of Subscription Right Certificate without altering any other disclosures.

Filing Exhibits & Attachments

5 documents

Other Documents

• EX-4.2 INSTRUCTIONS FOR RIGHTS CERTIFICATE 58.7 KB
• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.5 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 11.9 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 16.0 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 12.2 KB