MPTI / M-tron Industries, Inc. - SEC申報文件,年度報告,委任書

M-tron 工業公司
US ˙ NYSEAM

基本數據
CIK 1902314
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to M-tron Industries, Inc.
SEC Filings (Chronological Order)
本頁面提供了一個完整的、按時間順序排列的美國證券交易委員會(SEC)申報文件列表,不包括我們在其他地方提供的所有權申報。
June 1, 2026 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation (Commission File Number) (IRS Employer Identification No.) 2525 Shader Road, Orlando, FL 32804 (Address of Principal Executive Offices)

June 1, 2026 EX-1.01

M-tron Industries, Inc. Conflict Minerals Report For the Year Ended December 31, 2025

Exhibit 1.01 M-tron Industries, Inc. Conflict Minerals Report For the Year Ended December 31, 2025 This Conflict Minerals Report (the "Report") for the year ended December 31, 2025 was prepared by M-tron Industries, Inc. (hereinafter referred to as "Mtron," the "Company," "we," "us," or "our") pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, as amended ("Rule 13p-1"), on a consoli

May 14, 2026 EX-99.1

EXHIBIT 99.1

Exhibit 99.1

May 14, 2026 8-K

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): May 14, 2026 (May 12, 2026)

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): May 14, 2026 (May 12, 2026) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Co

May 13, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 ☐ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-tron

May 13, 2026 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-04

May 13, 2026 ARS

FORM ARS

2025 Annual Report M-tron Industries, Inc. – Since 1965 M-tron Industries, Inc. (“Mtron”) offers a wide range of precision frequency control and spectrum control solutions including: radio frequency (“RF”) microwave and millimeter wave filters; cavity, crystal, ceramic, lumped element and switched filters; high performance and high frequency oven-controlled crystal oscillators (“OCXO”); integrated

May 8, 2026 8-K

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): May 8, 2026 (May 7, 2026)

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): May 8, 2026 (May 7, 2026) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Comm

May 8, 2026 EX-99.1

Three Months Ended March 31,

Exhibit 99.1 M-tron Industries, Inc. Reports First Quarter 2026 Results • Revenues increased 15.3%, or $2.0 million, to $14.7 million for the three months ended March 31, 2026 from $12.7 million for the three months ended March 31, 2025 • Gross margin improved to 44.9% for the three months ended March 31, 2026 from 42.5% for the three months ended March 31, 2025 • Net income per diluted share incr

April 30, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ 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 Pursuant to §240.

April 27, 2026 8-K

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): April 27, 2026

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): April 27, 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

April 27, 2026 EX-99.1

M-tron Industries, Inc. Announces Completion of Rights Offering

Exhibit 99.1 M-tron Industries, Inc. Announces Completion of Rights Offering ORLANDO, Florida (April 27, 2026) – M-tron Industries, Inc. (NYSE American: MPTI) (“Mtron” or the “Company”), a U.S.-based designer and manufacturer of highly-engineered electronic components and solutions for the aerospace and defense, avionics, and space industries, announced today the completion of its previously annou

April 21, 2026 8-K

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): April 21, 2026

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): April 21, 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

April 21, 2026 EX-99.1

M-tron Industries, Inc. Announces Preliminary Results of Rights Offering

Exhibit 99.1 M-tron Industries, Inc. Announces Preliminary Results of Rights Offering ORLANDO, Florida (April 21, 2026) – M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a U.S.-based designer and manufacturer of highly-engineered electronic components and solutions for the aerospace and defense, avionics, and space industries, announced today the preliminary results of it

April 9, 2026 EX-99.1

M-tron Industries, Inc. Announces Extension of Previously Announced Rights Offering

Exhibit 99.1 M-tron Industries, Inc. Announces Extension of Previously Announced Rights Offering ORLANDO, Florida (April 9, 2026) – M-tron Industries, Inc. (NYSE American: MPTI, MPTI RT) ("Mtron" or the "Company") today announced that it has extended the expiration of the rights offering to purchase shares of Mtron’s common stock, par value $0.01 per share (the "Common Stock"), distributed on Marc

April 9, 2026 8-K

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): April 9, 2026

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): April 9, 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

March 31, 2026 EX-4.2

INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS

Exhibit 4.2 INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS The following instructions relate to a rights offering (the “Rights Offering”) by M-tron Industries, Inc., a Delaware corporation (the “Company”), to the holders of its common stock, par value $0.01 per share (the “C

March 31, 2026 EX-4.2

INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS

Exhibit 4.2 INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS The following instructions relate to a rights offering (the “Rights Offering”) by M-tron Industries, Inc., a Delaware corporation (the “Company”), to the holders of its common stock, par value $0.01 per share (the “C

March 31, 2026 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 46-0457944 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employe

March 31, 2026 8-K/A

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, 202

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 Jurisdicti

March 30, 2026 EX-99.2

M-TRON INDUSTRIES, INC. FORM OF NOTICE OF GUARANTEED DELIVERY RELATING TO SHARES SUBSCRIBED FOR PURSUANT TO THE BASIC SUBSCRIPTION AND OVERSUBSCRIPTION PRIVILEGE

Exhibit 99.2 M-TRON INDUSTRIES, INC. FORM OF NOTICE OF GUARANTEED DELIVERY RELATING TO SHARES SUBSCRIBED FOR PURSUANT TO THE BASIC SUBSCRIPTION AND OVERSUBSCRIPTION PRIVILEGE As set forth in M-tron Industries, Inc.’s (the “Company”) prospectus supplement, dated March 30, 2026, together with the base prospectus, dated February 11, 2025, which forms a part of the Company’s effective Registration Sta

March 30, 2026 EX-4.1

M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATE COMMON STOCK RIGHTS CERTIFICATE TO SUBSCRIBE FOR SHARES OF COMMON STOCK FOR HOLDERS OF RECORD OF M-TRON INDUSTRIES, INC. COMMON STOCK AT 5:00 P.M., NEW YORK CITY TIME, ON MARCH 27, 2026. EXERCIS

Exhibit 4.1 [Holder Information] M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATE COMMON STOCK RIGHTS CERTIFICATE TO SUBSCRIBE FOR SHARES OF COMMON STOCK FOR HOLDERS OF RECORD OF M-TRON INDUSTRIES, INC. COMMON STOCK AT 5:00 P.M., NEW YORK CITY TIME, ON MARCH 27, 2026. EXERCISABLE ON OR BEFORE 5:00 P.M., NEW YORK CITY TIME, ON APRIL 15, 2026, UNLESS EXTENDED BY THE COMPANY. As the registered

March 30, 2026 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registra

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 46-0457944 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.

March 30, 2026 EX-FILING FEES

Security Type

Calculation of Filing Fee Tables S-3 M-tron Industries, Inc. Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Ini

March 30, 2026 EX-4.1

M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATE COMMON STOCK RIGHTS CERTIFICATE TO SUBSCRIBE FOR SHARES OF COMMON STOCK FOR HOLDERS OF RECORD OF M-TRON INDUSTRIES, INC. COMMON STOCK AT 5:00 P.M., NEW YORK CITY TIME, ON MARCH 27, 2026. EXERCIS

Exhibit 4.1 [Holder Information] M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATE COMMON STOCK RIGHTS CERTIFICATE TO SUBSCRIBE FOR SHARES OF COMMON STOCK FOR HOLDERS OF RECORD OF M-TRON INDUSTRIES, INC. COMMON STOCK AT 5:00 P.M., NEW YORK CITY TIME, ON MARCH 27, 2026. EXERCISABLE ON OR BEFORE 5:00 P.M., NEW YORK CITY TIME, ON APRIL 15, 2026, UNLESS EXTENDED BY THE COMPANY. As the registered

March 30, 2026 8-K

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 30, 2026

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 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

March 30, 2026 EX-4.2

INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS

Exhibit 4.2 INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS The following instructions relate to a rights offering (the “Rights Offering”) by M-tron Industries, Inc., a Delaware corporation (the “Company”), to the holders of its common stock, par value $0.01 per share (the “C

March 30, 2026 EX-99.1

M-TRON INDUSTRIES, INC. FORM OF NOTICE TO STOCKHOLDERS WHO ARE ACTING AS NOMINEES Up to 713,362 Shares of Common Stock Issuable Upon Exercise of Transferable Rights

Exhibit 99.1 M-TRON INDUSTRIES, INC. FORM OF NOTICE TO STOCKHOLDERS WHO ARE ACTING AS NOMINEES Up to 713,362 Shares of Common Stock Issuable Upon Exercise of Transferable Rights This letter is being distributed to broker dealers, trust companies, banks and other nominees in connection with the offering (the “Rights Offering”) by M-tron Industries, Inc. (the “Company”) of transferable rights to sub

March 30, 2026 424B2

M-tron Industries, Inc. 3,566,812 Subscription Rights to Purchase Shares of Common Stock 713,362 Shares of Common Stock

Filed Pursuant to Rule 424(b)(2) Registration No. 333-284635 Prospectus Supplement (To Prospectus dated February 11, 2025) M-tron Industries, Inc. 3,566,812 Subscription Rights to Purchase Shares of Common Stock 713,362 Shares of Common Stock This prospectus supplement and the accompanying prospectus relate to the issuance and sale from time to time of 3,566,812 subscription rights (each, a “Right

March 30, 2026 EX-4.2

INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS

Exhibit 4.2 INSTRUCTIONS FOR USE OF M-TRON INDUSTRIES, INC. COMMON STOCK RIGHTS CERTIFICATES CONSULT GEORGESON LLC (THE “INFORMATION AGENT”) OR YOUR BANK OR BROKER AS TO ANY QUESTIONS The following instructions relate to a rights offering (the “Rights Offering”) by M-tron Industries, Inc., a Delaware corporation (the “Company”), to the holders of its common stock, par value $0.01 per share (the “C

March 26, 2026 EX-10.5

AMENDED AND RESTATED SECURITY AGREEMENT

Exhibit 10.5 AMENDED AND RESTATED SECURITY AGREEMENT THIS AMENDED AND RESTATED SECURITY AGREEMENT (the "Agreement") is made as of December 31, 2025 by PIEZO TECHNOLOGY, INC., a Florida corporation (the "Debtor"), in favor of FIFTH THIRD BANK, NATIONAL ASSOCIATION (the "Secured Party"). Debtor and Secured Party hereby agree as follows: RECITALS WHEREAS, Debtor (together with M‑TRON INDUSTRIES, INC.

March 26, 2026 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-41391 M-tron Industries, Inc.

March 26, 2026 EX-21.1

M-tron Industries, Inc. Subsidiaries

Exhibit 21.1 M-tron Industries, Inc. Subsidiaries Subsidiary Name State or Country of Organization M-tron Industries, Inc. Investment Piezo Technology, Inc. Florida 100.0 % Piezo Technology India Private Ltd. India 99.9 M-tron Asia, LLC Delaware 100.0 M-tron Industries, Ltd. Hong Kong 100.0

March 26, 2026 EX-10.4

AMENDED AND RESTATED SECURITY AGREEMENT

Exhibit 10.4 AMENDED AND RESTATED SECURITY AGREEMENT THIS AMENDED AND RESTATED SECURITY AGREEMENT (the "Agreement") is made as of December 31, 2025 by M‑TRON INDUSTRIES, INC., a Delaware corporation (the "Debtor"), in favor of FIFTH THIRD BANK, NATIONAL ASSOCIATION (the "Secured Party"). Debtor and Secured Party hereby agree as follows: RECITALS WHEREAS, Debtor (together with PIEZO TECHNOLOGY, INC

March 24, 2026 8-K

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 24, 2026

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 24, 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

March 24, 2026 EX-99.1

Three Months Ended December 31,

Exhibit 99.1 M-tron Industries, Inc. Reports Fourth Quarter and Full Fiscal Year 2025 Results Fourth Quarter 2025 Highlights • Revenues were $14.2 million for the three months ended December 31, 2025 compared to $12.8 million for the three months ended December 31, 2024 • Gross margin were 46.9% for the three months ended December 31, 2025 compared to 47.2% for the three months ended December 31,

March 18, 2026 EX-99.1

M-tron Industries, Inc. Announces Subscription Rights Offering to Address Rapid Changes in US Defense Sector

Exhibit 99.1 M-tron Industries, Inc. Announces Subscription Rights Offering to Address Rapid Changes in US Defense Sector ORLANDO, FL (March 18, 2026) – M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a leading provider of high-performance radio frequency ("RF") components and solutions for the aerospace and defense sector, today announced an offering of subscription righ

March 18, 2026 8-K

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 18, 2026

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 18, 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

January 9, 2026 15-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-04

January 7, 2026 EX-10.1

AMENDED AND RESTATED CREDIT AGREEMENT

Exhibit 10.1 AMENDED AND RESTATED CREDIT AGREEMENT THIS AMENDED AND RESTATED CREDIT AGREEMENT dated as of December 31, 2025, by and between M‑TRON INDUSTRIES, INC., a Delaware corporation, and PIEZO TECHNOLOGY, INC., a Florida corporation (collectively, the “Borrower”), and FIFTH THIRD BANK, NATIONAL ASSOCIATION (the “Lender”), is as follows: RECITALS WHEREAS, Borrower and Lender entered into that

January 7, 2026 8-K

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): January 7, 2026 (December 31, 202

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): January 7, 2026 (December 31, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporat

December 10, 2025 EX-99.1

M-tron Industries, Inc. Announces Extension of Warrant Expiration

Exhibit 99.1 M-tron Industries, Inc. Announces Extension of Warrant Expiration ORLANDO, Florida (December 9, 2025) – M-tron Industries, Inc. (NYSE American: MPTI, MPTI WS) ("Mtron" or the "Company") today announced that its Board of Directors has extended the expiration of the warrants to purchase shares of Mtron’s common stock, par value $0.01 per share (the "Common Stock"), granted on April 25,

December 10, 2025 8-K

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): December 10, 2025 (December 9, 20

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): December 10, 2025 (December 9, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorpora

December 5, 2025 8-K/A

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): December 5, 202

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): December 5, 2025 (November 6, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdic

November 25, 2025 EX-99.1

EXHIBIT 99.1

Exhibit 99.1

November 25, 2025 8-K

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): November 25, 2025 (November 20, 2

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): November 25, 2025 (November 20, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorpor

November 13, 2025 EX-99.1

M-tron Industries, Inc. Appoints Cameron Pforr as Chief Executive Officer

Exhibit 99.1 M-tron Industries, Inc. Appoints Cameron Pforr as Chief Executive Officer ORLANDO, Florida (November 13, 2025) — M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a U.S.-based supplier of radio frequency components and solutions to the aerospace & defense, avionics and space industries, announced today that the Board of Directors has appointed Cameron Pforr as

November 13, 2025 8-K

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): November 13, 2025 (November 6, 20

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): November 13, 2025 (November 6, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorpora

November 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 ☐ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-

November 12, 2025 8-K

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): November 12, 2025

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): November 12, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission F

November 12, 2025 EX-99.1

Three Months Ended September 30,

Exhibit 99.1 M-tron Industries, Inc. Reports Third Quarter 2025 Results • Revenues were $14.2 million for the three months ended September 30, 2025 • Gross margin was 44.3% for the three months ended September 30, 2025 • Net income per diluted share was $0.63 for the three months ended September 30, 2025 • Backlog was $58.8 million as of September 30, 2025 ORLANDO, Florida (November 12, 2025) — M-

November 4, 2025 8-K

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): November 4, 2025

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): November 4, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fi

November 4, 2025 EX-99.1

M-tron Industries, Inc. Reports Preliminary Third

Exhibit 99.1 M-tron Industries, Inc. Reports Preliminary Third Quarter 2025 Results ORLANDO, Florida (November 4, 2025) — M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a U.S.-based supplier of radio frequency components and solutions to the aerospace & defense, avionics and space industries, announced preliminary financial results for the third quarter ended September 3

October 23, 2025 8-K

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): October 23, 2025 (October 20, 202

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): October 23, 2025 (October 20, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporat

October 23, 2025 EX-99.1

M-tron Industries, Inc. Announces Achievement of Trigger; Warrants Now Exercisable

Exhibit 99.1 M-tron Industries, Inc. Announces Achievement of Trigger; Warrants Now Exercisable ORLANDO, Florida (October 23, 2025) — M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company") is pleased to announce that the warrants to purchase shares of Mtron's common stock, par value $0.01 per share (the "Common Stock"), granted on April 25, 2025 (the "Warrants") are now exercisab

September 11, 2025 EX-99.1

EXHIBIT 99.1

Exhibit 99.1

September 11, 2025 8-K

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): September 11, 2025 (September 10,

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): September 11, 2025 (September 10, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorp

August 12, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO S

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-tron

August 12, 2025 8-K

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): August 12, 2025

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): August 12, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 12, 2025 EX-99.1

Three Months Ended June 30,

Exhibit 99.1 M-tron Industries, Inc. Reports Continued Strength in Second Quarter 2025 Results • Revenues increased 12.5%, or $1.5 million, to $13.3 million for the three months ended June 30, 2025 from $11.8 million for the three months ended June 30, 2024 • Net income per diluted share decreased 15.9%, or $0.10, to $0.53 for the three months ended June 30, 2025 from $0.63 for the three months en

June 12, 2025 8-K

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): June 12, 2025 (June 10, 2025)

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): June 12, 2025 (June 10, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (

June 10, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): June 10, 2025 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

June 10, 2025 EX-99.1

M-tron Industries, Inc. Investor Presentation

Exhibit 99.1

June 2, 2025 EX-1.01

Conflict Minerals Report of M-tron Industries, Inc. for the year ended December 31, 2024.

Exhibit 1.01 M-tron Industries, Inc. Conflict Minerals Report For the Year Ended December 31, 2024 This Conflict Minerals Report (the "Report") for the year ended December 31, 2024 was prepared by M-tron Industries, Inc. (hereinafter referred to as "Mtron," the "Company," "we," "us," or "our") pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, as amended ("Rule 13p-1"), on a consoli

June 2, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation (Commission File Number) (IRS Employer Identification No.) 2525 Shader Road, Orlando, FL 32804 (Address of Principal Executive Offices)

May 13, 2025 EX-4.1

Warrant Agreement, dated as of April 25, 2025, by and among M-tron Industries, Inc., Computershare Inc., and Computershare Trust Company, N.A.

Exhibit 4.1 WARRANT AGREEMENT This WARRANT AGREEMENT, (this “Agreement”) is dated as of April 25, 2025, by and among M-TRON INDUSTRIES, INC., a Delaware corporation (the “Company”), COMPUTERSHARE INC., a Delaware corporation (“Computershare”), and its wholly-owned subsidiary, COMPUTERSHARE TRUST COMPANY, N.A., a federally chartered trust company (the “Trust Company”, and together with Computershar

May 13, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-tron

May 13, 2025 EX-99.1

M-tron Industries, Inc. Quarterly Summary

Exhibit 99.1 M-tron Industries, Inc. Reports First Quarter 2025 Results • Revenues increased 13.8%, or $1.5 million, to $12.7 million for the three months ended March 31, 2025 from $11.2 million for the three months ended March 31, 2024 • Net income per diluted share increased $0.03 to $0.56 for the three months ended March 31, 2025 from $0.53 for the three months ended March 31, 2024 • Backlog in

May 13, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): May 13, 2025 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 N

April 30, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ 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 Pursuant to §240.

April 30, 2025 ARS

ARS

M-tron Industries, Inc. – Since 1965 M-tron Industries, Inc. (“Mtron”) offers a wide range of precision frequency control and spectrum control solutions including: radio frequency (“RF”) microwave and millimeter wave filters; cavity, crystal, ceramic, lumped element and switched filters; high performance and high frequency oven-controlled crystal oscillators (“OCXO”); integrated phase-locked loops

April 29, 2025 CERT

NYSE AMERICAN CERTIFICATION

New York Stock Exchange 11 Wall Street New York, NY 10005 Tel: +1 212.656.3000 nyse.com April 29, 2025 Chief, Information Technology Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE MS 3040 Washington, DC 20549 To whom it may concern: The NYSE American certifies its approval for listing and registration of the Warrants to Purchase Shares of Common Stock, Expiring o

April 29, 2025 EX-4.1

Warrant Agreement, dated as of April 25, 2025, by and among M-tron Industries, Inc., Computershare Inc., and Computershare Trust Company, N.A.

Exhibit 4.1 WARRANT AGREEMENT This WARRANT AGREEMENT, (this “Agreement”) is dated as of April 25, 2025, by and among M-TRON INDUSTRIES, INC., a Delaware corporation (the “Company”), COMPUTERSHARE INC., a Delaware corporation (“Computershare”), and its wholly-owned subsidiary, COMPUTERSHARE TRUST COMPANY, N.A., a federally chartered trust company (the “Trust Company”, and together with Computershar

April 29, 2025 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registra

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 46-0457944 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.

April 25, 2025 424B2

M-tron Industries, Inc. 2,911,165 Warrants to Purchase Shares of Common Stock 582,233 Shares of Common Stock

Filed Pursuant to Rule 424(b)(2) Registration No. 333-284635 Prospectus Supplement (To Prospectus dated February 11, 2025) M-tron Industries, Inc. 2,911,165 Warrants to Purchase Shares of Common Stock 582,233 Shares of Common Stock This prospectus supplement and the accompanying prospectus relate to the issuance and sale from time to time of up to 2,911,165 warrants (each, a “Warrant” and, collect

April 25, 2025 EX-4.1

Warrant Agreement, dated as of April 25, 2025, by and among M-tron Industries, Inc., Computershare Inc., and Computershare Trust Company, N.A.

Exhibit 4.1 WARRANT AGREEMENT This WARRANT AGREEMENT, (this “Agreement”) is dated as of April 25, 2025, by and among M-TRON INDUSTRIES, INC., a Delaware corporation (the “Company”), COMPUTERSHARE INC., a Delaware corporation (“Computershare”), and its wholly-owned subsidiary, COMPUTERSHARE TRUST COMPANY, N.A., a federally chartered trust company (the “Trust Company”, and together with Computershar

April 25, 2025 8-K/A

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): April 25, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation

April 25, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

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): April 25, 2025 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

April 25, 2025 EX-4.1

Warrant Agreement (including Form of Warrant), dated April 25, 2025, by and among M-tron Industries, Inc., Computershare Inc., and Computershare Trust Company, N.A.

Exhibit 4.1 WARRANT AGREEMENT This WARRANT AGREEMENT, (this “Agreement”) is dated as of April 25, 2025, by and among M-TRON INDUSTRIES, INC., a Delaware corporation (the “Company”), COMPUTERSHARE INC., a Delaware corporation (“Computershare”), and its wholly-owned subsidiary, COMPUTERSHARE TRUST COMPANY, N.A., a federally chartered trust company (the “Trust Company”, and together with Computershar

April 25, 2025 8-A12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registra

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact name of Registrant as Specified in Its Charter) Delaware 46-0457944 (State or Other Jurisdiction of Incorporation or Organization) (I.R.S. Employer Identification No.

March 27, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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 27, 2025 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

March 27, 2025 EX-99.1

M-tron Industries, Inc. Quarterly Summary

Exhibit 99.1 M-tron Industries, Inc. Reports Robust Fourth Quarter and Full Fiscal Year 2024 Results; Record Full Year Revenues, Gross Margins and Earnings ORLANDO, Florida (March 27, 2025) — M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a designer and manufacturer of highly-engineered electronic components used to control the frequency or timing of signals in electroni

March 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-41391 M-tron Industries, Inc.

March 27, 2025 EX-10.7B

Form of Restricted Stock Agreement under Amended and Restated 2022 Incentive Plan of M-tron Industries, Inc.

Exhibit 10.7b M-TRON INDUSTRIES, INC. 2022 INCENTIVE PLAN RESTRICTED STOCK AGREEMENT THIS RESTRICTED STOCK AGREEMENT (this “Agreement”), dated [DATE] (the “Date of Grant”), is made by and between M-tron Industries, Inc., a Delaware corporation (the “Company”), and [PARTICIPANT NAME] (the “Participant”). WHEREAS, the Participant is a director, officer, or other employee of, or a consultant, advisor

March 27, 2025 EX-4.2

Form of Indemnification Agreement by and between M-tron Industries, Inc. and its executive officers and directors.

Exhibit 4.2 FORM OF INDEMNIFICATION AGREEMENT M-tron Industries, Inc. 2525 Shader Road Orlando, Florida 32804 [DATE] [] c/o M-tron Industries, Inc. 2525 Shader Road Orlando, Florida 32804 Dear []: In consideration of your services to M-tron Industries, Inc., a Delaware corporation (the “Company”), the Company will, to the extent provided herein, indemnify you and hold you harmless from and against

March 27, 2025 EX-21.1

Subsidiaries of M-tron Industries, Inc.

Exhibit 21.1 M-tron Industries, Inc. Subsidiaries Subsidiary Name State or Country of Organization M-tron Industries, Inc. Investment Piezo Technology, Inc. Florida 100.0 % Piezo Technology India Private Ltd. India 99.9 M-tron Asia, LLC Delaware 100.0 M-tron Industries, Ltd. Hong Kong 100.0

March 27, 2025 EX-10.7A

Form of Stock Option Agreement under Amended and Restated 2022 Incentive Plan of M-tron Industries, Inc.

Exhibit 10.7a M-TRON INDUSTRIES, INC. 2022 INCENTIVE PLAN STOCK OPTION AGREEMENT Participant Date of Grant Number of Shares Exercise Price Expiration Date This Stock Option Agreement (this “Agreement”) is made and entered into as of the Date of Grant indicated above by and between M-tron Industries, Inc., a Delaware corporation (the “Company”), and the Participant named above. WHEREAS, the Partici

March 27, 2025 EX-10.9

Separation Agreement and General Release, by and between M-tron Industries, Inc. and Michael J. Ferrantino, Jr., dated February 17, 2025.

Exhibit 10.9 SEPARATION AGREEMENT AND GENERAL RELEASE This Separation Agreement and General Release (this “Agreement”) executed this 17th day of February, 2025, by and between Michael Ferrantino (“Employee”), with an address at , and M-tron Industries, Inc., with an address at 2525 Shader Road, Orlando, Florida, 32804, and its subsidiaries and affiliates (collectively, the “Company”). WHEREAS, as

March 27, 2025 EX-19.1

M-tron Industries, Inc. Insider Trading Policy.

Exhibit 19.1 M-TRON INDUSTRIES INC. POLICY AND PROCEDURES GOVERNING SALES AND PURCHASES OF COMPANY AND RELATED SECURITIES BY INSIDERS I. PURPOSE In order to comply with federal and state securities laws governing (a) trading in an issuer’s securities while in the possession of “material nonpublic information” concerning the issuer, and (b) disclosure of material nonpublic information about an issu

March 27, 2025 EX-10.8

Separation Agreement and General Release, by and between M-tron Industries, Inc. and James W. Tivy, dated April 16, 2024.

Exhibit 10.8 SEPARATION AGREEMENT AND GENERAL RELEASE This Separation Agreement and General Release (this “Agreement”) executed this 16th day of April, 2024, by and between James W. Tivy (“Employee”), with an address at , and M-tron Industries, Inc., with an address at 2525 Shader Road, Orlando, Florida, 32804, and its subsidiaries and affiliates (collectively, the “Company”). WHEREAS, as of April

March 24, 2025 EX-99.1

M-tron Industries, Inc. Investor Presentation

Exhibit 99.1

March 24, 2025 8-K

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 24, 2025 (March 20, 2025)

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 24, 2025 (March 20, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation)

February 28, 2025 EX-99.1

M-tron Industries, Inc. Declares Warrant Dividend

Exhibit 99.1 M-tron Industries, Inc. Declares Warrant Dividend ORLANDO, FL (February 28, 2025) – M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company") today announced that on February 27, 2025, the Board of Directors of the Company declared a dividend of warrants (the "Warrants") to purchase shares of its common stock to holders of record of its common stock as of March 10, 2025

February 28, 2025 8-K

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): February 28, 2025 (February 27, 2

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): February 28, 2025 (February 27, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorpor

February 26, 2025 EX-99.1

1

Exhibit 99.1 M-tron Industries, Inc. Reports Preliminary Fourth Quarter and Full Fiscal Year 2024 Results ORLANDO, Florida (February 26, 2025) — M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a designer and manufacturer of highly-engineered electronic components used to control the frequency or timing of signals in electronic circuits, announced preliminary financial res

February 26, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

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): February 26, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission F

February 21, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

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): February 21, 2025 (February 17, 2025) M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorpor

February 20, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): February 20, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission F

February 20, 2025 EX-99.2

3

Exhibit 99.2 M-tron Industries, Inc. Announces Subscription Rights Offering • Stockholders of Record Would Receive Subscription Rights to Purchase Shares of Common Stock • Rights Will Be Transferable • Rights Will Have an Over-Subscription Privilege • Date of Record for Subscription Rights Offering is March 3, 2025 ORLANDO, FL (February 20, 2025) – M-tron Industries, Inc. (NYSE American: MPTI) ("M

February 20, 2025 EX-99.1

2

Exhibit 99.1 M-tron Industries, Inc. Announces Transformative Strategic Initiatives and Call to Review Preliminary Fourth Quarter and Full Fiscal Year 2024 Results and Plans Ahead ORLANDO, FL (February 20, 2025) – M-tron Industries, Inc. (NYSE American: MPTI) ("Mtron" or the "Company"), a defense electronics manufacturer with a "Made in the USA" ITAR approved footprint, reiterates its year end res

February 6, 2025 CORRESP

February 6, 2025

February 6, 2025 Via EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F.

February 5, 2025 LETTER

LETTER

February 5, 2025 Cameron Pforr Chief Financial Officer M-tron Industries, Inc. 2525 Shader Road Orlando, Florida 32804 Re: M-tron Industries, Inc. Registration Statement on Form S-3 File No. 333-284635 Filed January 31, 2025 Dear Cameron Pforr: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for a

February 3, 2025 DEL AM

M-TRON INDUSTRIES, INC. 2525 Shader Road Orlando, Florida 32804

M-TRON INDUSTRIES, INC. 2525 Shader Road Orlando, Florida 32804 February 3, 2025 Via EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Re: M-tron Industries, Inc. Registration Statement on Form S-3 (File No. 333-284635) filed on January 31, 2025 Ladies and Gentlemen: Reference is made to the Registration Statement on Form S-3 (File No.

January 31, 2025 S-3

As filed with the Securities and Exchange Commission on January 31, 2025

Table of Contents As filed with the Securities and Exchange Commission on January 31, 2025 Registration Statement No.

January 31, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) M-TRON INDUSTRIES, INC.

January 17, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): January 17, 2025 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fi

January 17, 2025 EX-99.1

M-tron Industries, Inc. Investor Presentation

Exhibit 99.1

November 27, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 mpti08.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8) M-tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Tele

November 15, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 mpti07.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7) M-tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Tele

November 13, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): November 13, 2024 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission F

November 13, 2024 EX-99.1

M-tron Industries, Inc. Quarterly Summary

Exhibit 99.1 M-tron Industries, Inc. Reports Strong Third Quarter 2024 Results with Revenue and Earnings per Share Above Expectations • Revenues increased 21.4%, or $2,326,000, to $13,214,000 for the three months ended September 30, 2024 from $10,888,000 for the three months ended September 30, 2023 • Gross margin increased 500 basis points to 47.8% for the three months ended September 30, 2024 fr

November 13, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-

November 8, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 mpti06.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6) M-tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Tele

October 9, 2024 EX-99.1

M-tron Industries, Inc. Appoints Cameron Pforr as Chief Financial Officer

Exhibit 99.1 M-tron Industries, Inc. Appoints Cameron Pforr as Chief Financial Officer ORLANDO, Florida (October 9, 2024) — M-tron Industries, Inc. (NYSE American: MPTI) ("MtronPTI" or the "Company"), a designer and manufacturer of highly-engineered electronic components used to control the frequency or timing of signals in electronic circuits, today announced the appointment of Cameron Pforr as C

October 9, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): October 9, 2024 (October 3, 2024) M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporatio

September 18, 2024 EX-99.1

M-tron Industries, Inc. Investor Presentation

Exhibit 99.1

September 18, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): September 18, 2024 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission

August 21, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) M-tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person

August 14, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): August 14, 2024 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 14, 2024 EX-99.1

M-tron Industries, Inc. Quarterly Summary

Exhibit 99.1 M-tron Industries, Inc. Reports Strong Second Quarter 2024 Results with Further Margin Expansion ORLANDO, Florida (August 14, 2024) — M-tron Industries, Inc. (NYSE American: MPTI) (the “Company” or “MPTI”), a designer and manufacturer of highly-engineered electronic components used to control the frequency or timing of signals in electronic circuits, announced strong financial results

August 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO S

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-tron

June 18, 2024 8-K

Submission of Matters to a Vote of Security Holders

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): June 18, 2024 (June 11, 2024) M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (

May 30, 2024 EX-1.01

Conflict Minerals Report for the year ended December 31, 2023

Exhibit 1.01 M-tron Industries, Inc. Conflict Minerals Report For the Year Ended December 31, 2023 This Conflict Minerals Report (the "Report") for the year ended December 31, 2023 was prepared by M-tron Industries, Inc. (hereinafter referred to as the "Company," "MtronPTI," "we," "us," or "our") pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, as amended ("Rule 13p-1"), on a cons

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation (Commission File Number) (IRS Employer Identification No.) 2525 Shader Road, Orlando, FL 32804 (Address of Principal Executive Offices)

May 14, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-TRON

May 7, 2024 EX-99.2

M-tron Industries, Inc. Investor Presentation

Exhibit 99.2

May 7, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): May 7, 2024 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 Nu

May 7, 2024 EX-99.1

M-tron Industries, Inc. Condensed Consolidated Statements of Operations

Exhibit 99.1 M-tron Industries, Inc. Reports First Quarter 2024 Results and Reminds Stakeholders of Investor Day • Revenues increased $1,818,000 to $11,185,000 for the three months ended March 31, 2024 from $9,367,000 for the three months ended March 31, 2023 • Gross margin increased 861 basis points to 42.7% for the three months ended March 31, 2024 from 34.1% for the three months ended March 31,

April 29, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ 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 Pursuant to §240.

April 16, 2024 EX-99.1

M-tron Industries, Inc. Elevates Linda Biles to Executive Vice President

Exhibit 99.1 M-tron Industries, Inc. Elevates Linda Biles to Executive Vice President ORLANDO, Florida (April 15, 2023) — M-tron Industries, Inc. (NYSE American: MPTI) (the “Company” or “MtronPTI”) is delighted to announce the promotion of Linda Biles to the position of Executive Vice President of Finance, effective April 16, 2024. Linda has demonstrated dedication, exceptional leadership, and out

April 16, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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): April 16, 2024 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

March 26, 2024 8-K

Other Events

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 26, 2024 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission File

March 25, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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 25, 2024 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

March 25, 2024 EX-97.1

Recovery of Erroneously Awarded Compensation Policy

Exhibit 97.1 M-TRON INDUSTRIES, INC. Recovery of Erroneously Awarded Compensation Policy M-tron Industries, Inc. (the “Company”, or “MtronPTI”) has adopted this Recovery of Erroneously Awarded Compensation Policy (this “Recovery Policy”) to set forth the procedures for the identification, review, and recovery of erroneously awarded incentive-based compensation involving the Company and any “Execut

March 25, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-41391 M-tron Industries, Inc.

March 25, 2024 EX-99.1

M-tron Industries, Inc. Condensed Consolidated and Combined Statements of Operations (Amounts in Thousands, Except Share and Per Share Amounts)

Exhibit 99.1 M-tron Industries, Inc. Reports Fiscal Year 2023 Results and Announces Investor Call ORLANDO, Florida (March 25, 2024)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced its financial results for the fiscal year ended December 31, 2023. Management will host an earnings call on Tuesday, March 26, 2024 at 10:30am EST. • Total revenues for the year ended De

March 7, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person

January 16, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / Gabelli Marc Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Peter Goldstein One Corporate Center Rye, NY 10580 (914) 921-7774 (Name, Address and Telephone Number of Person Authorized to Receive Notices

January 8, 2024 SC 13D/A

MPTI / M-tron Industries, Inc. / Gabelli Marc Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Peter Goldstein One Corporate Center Rye, NY 10580 (914) 921-7774 (Name, Address and Telephone Number of Person Authorized to Receive Notices

December 28, 2023 8-K

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): December 28, 2023

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): December 28, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission F

December 26, 2023 SC 13D/A

MPTI / M-tron Industries, Inc. / Gabelli Marc Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Peter Goldstein One Corporate Center Rye, NY 10580 (914) 921-7774 (Name, Address and Telephone Number of Person Authorized to Receive Notices

December 12, 2023 SC 13D/A

MPTI / M-tron Industries Inc / Gabelli Marc Activist Investment

SC 13D/A 1 mpti02mg.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Marc Gabelli 189 Mason Street Greenwich, CT 06830 (203) 629-9200 (Name, Address and Telephone Number of Person Authori

December 11, 2023 SC 13D/A

MPTI / M-tron Industries Inc / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person

December 5, 2023 8-K

Financial Statements and Exhibits, Other Events

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): December 5, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fi

December 5, 2023 SC 13D

MPTI / M-tron Industries Inc / Gabelli Marc Activist Investment

SC 13D 1 mpti00mg.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Marc Gabelli 189 Mason Street Greenwich, CT 06830 (203) 629-9200 (Name, Address and Telephone Number of Person Authorized to Receive Notic

December 5, 2023 EX-99.1

M-tron Industries, Inc. to Present at Sidoti Virtual Investor Conference December 6-7

Exhibit 99.1 M-tron Industries, Inc. to Present at Sidoti Virtual Investor Conference December 6-7 ORLANDO, Florida (December 5, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced that its CEO, Michael Ferrantino will make a presentation to investors at the Sidoti Small-Cap Virtual Investor Conference, taking place on December 6-7, 2023. The presentation will b

December 5, 2023 SC 13D/A

MPTI / M-tron Industries Inc / Gabelli Marc Activist Investment

SC 13D/A 1 mpti01mg.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) Marc Gabelli 189 Mason Street Greenwich, CT 06830 (203) 629-9200 (Name, Address and Telephone Number of Person Authori

November 15, 2023 SC 13D/A

MPTI / M-tron Industries Inc / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 mpti02.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Tele

November 9, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

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): November 9, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission Fi

November 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 0

November 9, 2023 EX-99.1

M-tron Industries, Inc. Condensed Consolidated Statements of Operations (Amounts in Thousands, Except Share and Per Share Amounts)

Exhibit 99.1 M-tron Industries, Inc. Reports Third Quarter 2023 Results and Announces Investor Call ORLANDO, Florida (November 9, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced its financial results for the three and nine months ended September 30, 2023. Management will host an earnings call on Thursday, November 16, 2023 at 10:30am EST. ● Revenue of $10.9

October 10, 2023 SC 13D/A

MPTI / M-tron Industries Inc / GAMCO INVESTORS, INC. ET AL Activist Investment

SC 13D/A 1 mpti01.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Tele

September 20, 2023 8-K

Submission of Matters to a Vote of Security Holders

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): September 20, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457994 (State or Other Jurisdiction of Incorporation) (Commission

August 17, 2023 EX-99.1

PowerPoint presentation dated August 17, 2023.

Exhibit 99.1

August 17, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

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): August 17, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fil

August 16, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ 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 Pursuant to §240.

August 10, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41

August 10, 2023 EX-99.1

M-tron Industries, Inc. Condensed Consolidated Statements of Operations (Amounts in Thousands, Except Share and Per Share Amounts)

Exhibit 99.1 M-tron Industries, Inc. Reports Second Quarter 2023 Results and Announces Participation in the Sidoti August 2023 Virtual Investor Conference ORLANDO, Florida (May 16, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced its financial results for the three and six months ended June 30, 2023 and its participation in the Sidoti August 2023 Virtual Inve

August 10, 2023 8-K

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): August 10, 2023

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): August 10, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fil

July 17, 2023 8-K

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 17, 2023

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 17, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission File

May 24, 2023 EX-1.01

Conflict Minerals Report as required by Items 1.01 and 1.02.

Exhibit 1.01 M-tron Industries, Inc. Conflict Minerals Report For the Year Ended December 31, 2022 This Conflict Minerals Report (the “Report”) for the year ended December 31, 2022 was prepared by M-tron Industries, Inc. (hereinafter referred to as the “Company,” “MtronPTI,” “we,” “us,” or “our”) pursuant to Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule 13p-1”), on a cons

May 24, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation or Organization) (Commission File Number) (IRS Employer Identification No.) 2525 Shader Road, Orlando, FL 32804 (Address of Principal E

May 11, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-TRON INDUST

April 28, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K/A (Amendment No.

April 19, 2023 8-K

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): April 19, 2023

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): April 19, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission File

April 19, 2023 EX-99.1

M-tron Industries, Inc. Announces Investor Presentation

Exhibit 99.1 M-tron Industries, Inc. Announces Investor Presentation ORLANDO, Florida (April 19, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced today that an investor presentation via live webcast hosted by members of the MtronPTI management team will be held on Tuesday, May 2, 2023 at 9:00 AM Eastern Time. The presentation will review MtronPTI’s operations

March 30, 2023 EX-4.2

Exhibit 4.2

Exhibit 4.2 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (the “Company”) has authority to issue 30,000,000 shares of capital stock, consisting of 25,000,000 shares of common stock, $0.01 par value per share (the “Common Stock”), and 5,000,000 shares of preferred stock, $0.01 par value per share (the “Pre

March 30, 2023 EX-99.1

M-tron Industries, Inc. Condensed Consolidated and Combined Statements of Operations (Amounts in Thousands, Except Share and Per Share Amounts)

Exhibit 99.1 M-tron Industries, Inc. Reports Fiscal Year 2022 Results ORLANDO, Florida (March 30, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced its financial results for the fiscal year ended December 31, 2022. • Revenue of $8.7 million for the three months ended December 31, 2022, an increase of 26.4% compared to $6.9 million for the comparable prior year

March 30, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-041391 M-tron Industries, Inc.

March 30, 2023 8-K

Financial Statements and Exhibits, Other Events

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 30, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission File

January 12, 2023 8-K

Financial Statements and Exhibits, Other Events

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): January 12, 2023 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fi

January 12, 2023 EX-99.1

M-tron Industries, Inc. to Present at Sidoti Virtual Investor Conference January 18-19

Exhibit 99.1 M-tron Industries, Inc. to Present at Sidoti Virtual Investor Conference January 18-19 ORLANDO, Florida (January 12, 2023)—M-tron Industries, Inc. (NYSE American: MPTI) (“Company” or “MtronPTI”) announced that its CEO, Michael Ferrantino will present and host one-on-one meetings with investors at the Sidoti January Virtual Investor Conference, taking place on January 18-19, 2023. The

December 9, 2022 8-K

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

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): December 9, 2022 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fi

November 16, 2022 S-8

As filed with the Securities and Exchange Commission on November 15, 2022

As filed with the Securities and Exchange Commission on November 15, 2022 Registration No.

November 16, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) M-TRON INDUSTRIES, INC.

November 14, 2022 EX-99.1

M-tron Industries, Inc. Condensed Consolidated Statements of Operations (Amounts in Thousands, Except Share and Per Share Amounts)

Exhibit 99.1 M-tron Industries, Inc. Reports Third Quarter 2022 Results ORLANDO, Florida (November 14, 2022)?M-tron Industries, Inc. (NYSE American: MPTI) (?Company? or ?MtronPTI?) announced its financial results for the three and nine months ended September 30, 2022. ? Revenue of $8.4 million for the three months ended September 30, 2022, an increase of 17.3% compared to $7.2 million for the comp

November 14, 2022 8-K

Financial Statements and Exhibits, Other Events

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): November 14, 2022 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission F

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No. 001-41391 M-TRON IN

November 8, 2022 8-K

Financial Statements and Exhibits, Other Events

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): November 8, 2022 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fi

November 8, 2022 EX-99.1

M-tron Industries, Inc. Announces Timing of Q3, 2022 Results and Investor Presentation and Earnings Call

Exhibit 99.1 M-tron Industries, Inc. Announces Timing of Q3, 2022 Results and Investor Presentation and Earnings Call ORLANDO, Florida (November 7, 2022)?M-tron Industries, Inc. (NYSE American: MPTI) (?Company? or ?MtronPTI?) announced today that the Company will release its third quarter 2022 financial results after market close on Monday, November 14, 2022. An investor presentation via live webc

October 14, 2022 EX-16.1

Letter from RSM US LLP dated October 14, 2022.

Exhibit 16.1 RSM US LLP 333 S. Garland Avenue Suite 1410 Orlando, FL 32801, USA October 14, 2022 O +1 407 898 2727 F +1 407 895 1335 Securities and Exchange Commission www.rsmus.com Washington, D.C. 20549 Commissioners: We have read M-tron Industries Inc’s statements included under Item 4.01(a) of its Form 8-K filed on October 14, 2022 and we agree with such statements concerning our firm. THE POW

October 14, 2022 8-K

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): October 14, 2022

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): October 14, 2022 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fi

October 14, 2022 SC 13D

MPTI / M-tron Industries Inc / GAMCO INVESTORS, INC. ET AL Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 M-Tron Industries, Inc. (Name of Issuer) Common Stock, par value $0.01 (Title of Class of Securities) 55380K109 (CUSIP Number) David Goldman GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5000 (Name, Address and Telephone Number of Person Authorized to Rec

October 11, 2022 8-K

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): October 7, 2022

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): October 7, 2022 M-TRON INDUSTRIES, INC. (Exact Name of Registrant as Specified in Charter) Delaware 001-41391 46-0457944 (State or Other Jurisdiction of Incorporation) (Commission Fil

October 11, 2022 EX-99.1

M-tron Industries, Inc. Completes Separation from The LGL Group, Inc.

Exhibit 99.1 M-tron Industries, Inc. Completes Separation from The LGL Group, Inc. ORLANDO, Florida (October 7, 2022)?M-tron Industries, Inc. (NYSE American: MPTI) (?MtronPTI?) announced today that it has completed its previously announced separation from The LGL Group, Inc. (?LGL?) and is now an independent, publicly traded company. MtronPTI shares will begin trading today on the New York Stock E

September 7, 2022 ORDER

ORDER

UNITED STATES OF AMERICA BEFORE THE SECURITIES AND EXCHANGE COMMISSION September 7, 2022 In the Matter of M-tron Industries, Inc.

August 31, 2022 CERT

NYSE AMERICAN CERTIFICATION

New York Stock Exchange 11 Wall Street New York, NY 10005 Tel: +1 212.656.3000 nyse.com August 31, 2022 Chief, Information Technology Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE MS 3040 Washington, DC 20549 To whom it may concern: The NYSE American certifies its approval for listing and registration of the Common Stock, $0.01 par value, of M-tron Industries, I

August 31, 2022 CORRESP

August 31, 2022

August 31, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.

August 19, 2022 EX-10

Amended and Restated Tax Indemnity and Sharing Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc. (Incorporated by reference to Exhibit 10.2 to the Company’s Form 10 filed with the SEC on August 19, 2022).

AMENDED AND RESTATED TAX INDEMNITY AND SHARING AGREEMENT BETWEEN THE LGL GROUP, INC.

August 19, 2022 EX-10

Amended and Restated Transitional Administrative and Management Services Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc. (Incorporated by reference to Exhibit 10.1 to the Company’s Form 10 filed with the SEC on August 19, 2022).

AMENDED AND RESTATED TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT THIS AMENDED AND RESTATED TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT (this ?Agreement?) is dated as of August 19, 2022, between The LGL Group, Inc.

August 19, 2022 EX-4

Amended and Restated 2022 Incentive Plan of M-tron Industries, Inc. (incorporated by reference to Exhibit 4.1 to Amendment No. 4 to the Company’s Registration Statement on Form 10 filed with the SEC on August 19, 2022)

M-tron Industries, Inc. Amended and Restated 2022 Incentive Plan Article 1 Establishment and Purpose 1.1Establishment of the Plan. M-tron Industries, Inc., a Delaware corporation (the ?Company?), previously established a 2022 Incentive Plan on August 3, 2022 (the ?Previous Plan?). The Company hereby replaces the Previous Plan with an amended and restated incentive compensation plan (as amended fro

August 19, 2022 EX-2

Amended and Restated Separation and Distribution Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc. (incorporated by reference to Exhibit 2.1 to Amendment No. 4 to the Company’s Registration Statement on Form 10 filed with the SEC on August 19, 2022)

AMENDED & RESTATED SEPARATION AND DISTRIBUTION AGREEMENT THIS AMENDED & RESTATED SEPARATION AND DISTRIBUTION AGREEMENT (this ?Agreement?) is dated as of August 19, 2022 between The LGL Group, Inc.

August 19, 2022 10-12B/A

As filed with the Securities and Exchange Commission on August 19, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 4 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION

10-12B/A 1 mpti-1012ba.htm 10-12B/A As filed with the Securities and Exchange Commission on August 19, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 4 to FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact Name of Registrant as Speci

August 19, 2022 EX-99

Exhibit 99.1 to the Registrant’s Form 10 filed on August 19, 2022

Exhibit 99.1 INFORMATION STATEMENT M-tron Industries, Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE This information statement is being furnished by The LGL Group, Inc., a Delaware corporation (the ?Company?), in connection with its spin-off (the ?spin-off?) of M-tron Industries, Inc., a Delaware corporation (?Mtron,? ?we,? ?us? and ?our?). Mtron is currently a wholly-owned subsidiary of the Compan

August 10, 2022 CORRESP

August 10, 2022

CORRESP 1 filename1.htm August 10, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.E. Washington, D.C. 20549 Attention: Sherry Haywood Re:Withdrawal of Acceleration Request Submitted by M-tron Industries, Inc. Registration Statement on Form 10 File No. 001-41391 Ladies and Gentlemen: We withdraw our latest request for accele

August 10, 2022 CORRESP

August 10, 2022

August 10, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.

August 8, 2022 CORRESP

August 8, 2022

August 8, 2022 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Manufacturing 100 F Street, N.

August 3, 2022 EX-3

Amended and Restated Certificate of Incorporation of M-tron Industries, Inc. (incorporated by reference to Exhibit 3.1 to Amendment No. 3 to the Company’s Registration Statement on Form 10 filed with the SEC on August 3, 2022)

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF M-TRON INDUSTRIES, INC. August 3, 2022 M-Tron Industries, Inc. a corporation organized and existing under the laws of the State of Delaware, DOES HEREBY CERTIFY AS FOLLOWS: 1. The name of the Corporation is ?M-Tron Industries, Inc.? 2. This Amended and Restated Certificate of Incorporation (the ?Certificate of Incorporation?), which

August 3, 2022 EX-2

Separation and Distribution Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc

Exhibit 2.1 SEPARATION AND DISTRIBUTION AGREEMENT THIS SEPARATION AND DISTRIBUTION AGREEMENT (this ?Agreement?) is dated as of August 3, 2022 between The LGL Group, Inc., a Delaware corporation (?LGL?), and M?tron Industries, Inc., a Delaware corporation and, as of the date of this Agreement, a wholly owned subsidiary of LGL (?Mtron?). As used herein, LGL on the one hand, and Mtron, on the other h

August 3, 2022 EX-10

Tax Indemnity and Sharing Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc

Exhibit 10.2 TAX INDEMNITY AND SHARING AGREEMENT BETWEEN THE LGL GROUP, INC. AND M-TRON INDUSTRIES, INC. Dated as of August 3, 2022 Table of Contents Page SECTION 1. Definition of Terms SECTION 2. Allocation of Taxes and Tax-Related Losses. 8 2.1 Allocation of Taxes 8 2.2 Allocation of Deconsolidation Taxes, Distribution Taxes and Transfer Taxes 8 2.3 Tax Payments 8 SECTION 3. Preparation and Fili

August 3, 2022 EX-10

Transitional Administrative and Management Services Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc

Exhibit 10.1 TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT THIS TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT (this ?Agreement?) is dated as of August 3, 2022, between The LGL Group, Inc., a Delaware corporation (?LGL?), and M-tron Industries, Inc., a Delaware corporation (?Mtron?, and together with LGL, ?Parties?, or each individually, a ?Party?). WHEREAS, followin

August 3, 2022 EX-99

Information Statement of M-tron Industries, Inc., dated August 3, 2022

Exhibit 99.1 INFORMATION STATEMENT M-tron Industries, Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE This information statement is being furnished by The LGL Group, Inc., a Delaware corporation (the ?Company?), in connection with its spin-off (the ?spin-off?) of M-tron Industries, Inc., a Delaware corporation (?Mtron,? ?we,? ?us? and ?our?). Mtron is currently a wholly-owned subsidiary of the Compan

August 3, 2022 10-12B/A

As filed with the Securities and Exchange Commission on August 3, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION

mpti-s1.DOCX.htm As filed with the Securities and Exchange Commission on August 3, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 to FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Its Charter)

August 3, 2022 EX-3

Amended and Restated Bylaws of M-tron Industries, Inc. (incorporated by reference to Exhibit 3.2 to Amendment No. 3 to the Company’s Registration Statement on Form 10 filed with the SEC on August 3, 2022)

AMENDED AND RESTATED BYLAWS OF M-TRON INDUSTRIES, INC. Article I OFFICES Section 1.1Registered Office. The registered office of M-tron Industries, Inc. (the ?Corporation?) within the State of Delaware shall be located at either (a) the principal place of business of the Corporation in the State of Delaware or (b) the office of the corporation or individual acting as the Corporation?s registered ag

July 18, 2022 EX-2

Form of Separation and Distribution Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 2.1 SEPARATION AND DISTRIBUTION AGREEMENT THIS SEPARATION AND DISTRIBUTION AGREEMENT (this ?Agreement?) is dated as of [?], 2022 between The LGL Group, Inc., a Delaware corporation (?LGL?), and M?tron Industries, Inc., a Delaware corporation and, as of the date of this Agreement, a wholly owned subsidiary of LGL (?Mtron?). As used herein, LGL on the one hand, and Mtron, on the other hand,

July 18, 2022 EX-10

Security Agreement by and among Piezo Technology, Inc. and Fifth Third Bank, National Association, dated June 15, 2022

Security Agreement This Security Agreement (the "Agreement") is made as of June 15, 2022 by PIEZO TECHNOLOGY, INC.

July 18, 2022 EX-10

Credit Agreement by and among M-Tron Industries, Inc., Piezo Technology, Inc. and Fifth Third Bank, National Association, dated June 15, 2022

CREDIT AGREEMENT THIS CREDIT AGREEMENT dated as of June 15, 2022, by and between M?TRON INDUSTRIES, INC.

July 18, 2022 EX-10

Form of Transitional Administrative and Management Services Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.1 TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT THIS TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT (this ?Agreement?) is dated as of [?], 2022, between The LGL Group, Inc., a Delaware corporation (?LGL?), and M-tron Industries, Inc., a Delaware corporation (?Mtron?, and together with LGL, ?Parties?, or each individually, a ?Party?). WHEREAS, following the

July 18, 2022 EX-3

Form of Amended and Restated Bylaws of M-tron Industries, Inc.

Exhibit B Amended and Restated Bylaws M-tron Industries, Inc. [See Attached] Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF M-TRON INDUSTRIES, INC. Article I OFFICES Section 1.1Registered Office. The registered office of M-tron Industries, Inc. (the ?Corporation?) within the State of Delaware shall be located at either (a) the principal place of business of the Corporation in the State of Delaware or

July 18, 2022 10-12B/A

As filed with the Securities and Exchange Commission on July 18, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 1

10-12B/A 1 mpti-10.htm 10-12B/A As filed with the Securities and Exchange Commission on July 18, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 to FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact Name of Registrant as Specified i

July 18, 2022 CORRESP

* * *

1(212) 318-6906 [email protected] July 18, 2022 96303.00003 VIA EDGAR Division of Corporation Finance Office of Manufacturing U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attn: Sherry Haywood Asia Timmons-Pierce Beverly Singleton Kevin Stertzel Re: M-tron Industries, Inc. Amendment No.1 to Registration Statement on Form 10-12B Filed June 29, 2022

July 18, 2022 EX-10

Form of Tax Indemnity and Sharing Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.2 TAX INDEMNITY AND SHARING AGREEMENT BETWEEN THE LGL GROUP, INC. AND M-TRON INDUSTRIES, INC. Dated as of [●], 2022 Table of Contents Page SECTION 1. Definition of Terms SECTION 2. Allocation of Taxes and Tax-Related Losses. 8 2.1 Allocation of Taxes 8 2.2 Allocation of Deconsolidation Taxes, Distribution Taxes and Transfer Taxes 8 2.3 Tax Payments 8 SECTION 3. Preparation and Filing of

July 18, 2022 EX-3

Form of Amended and Restated Certificate of Incorporation of M-tron Industries, Inc

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF M-TRON INDUSTRIES, INC. Article I NAME The name of the corporation is M-tron Industries, Inc. (the ?Corporation?). Article II PURPOSE The business or purposes of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the Delaware General Corporation Law (as amended, restated, suppleme

July 18, 2022 EX-21

Subsidiaries of M-tron Industries, Inc.

Exhibit 21.1 M-tron Industries, Inc. Subsidiaries Subsidiary Name State or Country of Organization M-tron Industries, Inc. Investment Piezo Technology, Inc. Florida 100.0 % Piezo Technology India Private Ltd. India 99.9 % M-tron Asia, LLC Delaware 100.0 % M-tron Industries, Ltd. Hong Kong 100.0 %

July 18, 2022 EX-10

Security Agreement by and among M-Tron Industries, Inc. and Fifth Third Bank, National Association, dated June 15, 2022

Security Agreement This Security Agreement (the "Agreement") is made as of June 15, 2022 by M?TRON INDUSTRIES, INC.

July 18, 2022 EX-4

2022 Incentive Plan of M-tron Industries, Inc.

Exhibit 4.1 M-tron Industries, Inc. 2022 Incentive Plan Article 1 Establishment and Purpose 1.1Establishment of the Plan. M-tron Industries, Inc., a Delaware corporation (the “Company”), hereby establishes an incentive compensation plan (as amended from time to time, the “Plan”), as set forth in this document. 1.2Purpose of the Plan. The purposes of the Plan are to (a) enable the Company and any A

July 18, 2022 EX-10

Promissory Note in favor of Fifth Third Bank, National Association, dated June 15, 2022

REVOLVING CREDIT PROMISSORY NOTE $5,000,000.00 June 15, 2022 (the ?Effective Date?) FOR VALUE RECEIVED, the undersigned, M-TRON INDUSTRIES, INC., a Delaware corporation, and PIEZO TECHNOLOGY, INC., a Florida corporation (collectively, the "Borrower"), with an address of 2525 Shader Road, Orlando, Florida 32804, jointly and severally, hereby unconditionally promises to pay to the order of FIFTH THI

July 18, 2022 EX-99

Information Statement of M-tron Industries, Inc., preliminary and subject to completion, dated July 18, 2022

Exhibit 99.1 APPENDIX A PRELIMINARY INFORMATION STATEMENT FILED BY M-TRON INDUSTRIES, INC. WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON JULY 18, 2022; TO BE AMENDED PRELIMINARY AND SUBJECT TO COMPLETION INFORMATION STATEMENT M-tron Industries, Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE This information statement is being furnished by The LGL Group, Inc., a Delaware corporation (the ?Compa

July 14, 2022 LETTER

LETTER

United States securities and exchange commission logo July 14, 2022 James Tivy Chief Financial Officer M-tron Industries, Inc.

June 29, 2022 EX-2.1

Form of Separation and Distribution Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

EX-2.1 2 mpti-ex2112.htm EX-2.1 Exhibit 2.1 SEPARATION AND DISTRIBUTION AGREEMENT THIS SEPARATION AND DISTRIBUTION AGREEMENT (this “Agreement”) is dated as of [●], 2022 between The LGL Group, Inc., a Delaware corporation (“LGL”), and M‑tron Industries, Inc., a Delaware corporation and, as of the date of this Agreement, a wholly owned subsidiary of LGL (“Mtron”). As used herein, LGL on the one hand

June 29, 2022 EX-10.2

Form of Tax Indemnity and Sharing Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.2 TAX INDEMNITY AND SHARING AGREEMENT BETWEEN THE LGL GROUP, INC. AND M-TRON INDUSTRIES, INC. Dated as of [●], 2022 Table of Contents Page SECTION 1. Definition of Terms SECTION 2. Allocation of Taxes and Tax-Related Losses. 8 2.1 Allocation of Taxes 8 2.2 Allocation of Deconsolidation Taxes, Distribution Taxes and Transfer Taxes 8 2.3 Tax Payments 8 SECTION 3. Preparation and Filing of

June 29, 2022 CORRESP

* * *

1(212) 318-6906 [email protected] June 28, 2022 96303.00003 VIA EDGAR Division of Corporation Finance Office of Manufacturing U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Attn: Sherry Haywood Asia Timmons-Pierce Beverly Singleton Kevin Stertzel Re: M-tron Industries, Inc. Registration Statement on Form 10-12B Filed May 11, 2022 File No. 001-41391

June 29, 2022 EX-4.1

2022 Incentive Plan of M-tron Industries, Inc.

Exhibit 4.1 M-tron Industries, Inc. 2022 Incentive Plan Article 1 Establishment and Purpose 1.1Establishment of the Plan. M-tron Industries, Inc., a Delaware corporation (the “Company”), hereby establishes an incentive compensation plan (as amended from time to time, the “Plan”), as set forth in this document. 1.2Purpose of the Plan. The purposes of the Plan are to (a) enable the Company and any A

June 29, 2022 EX-3.1

Form of Amended and Restated Certificate of Incorporation of M-tron Industries, Inc

EX-3.1 3 mpti-ex3144.htm EX-3.1 Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF M-TRON INDUSTRIES, INC. Article I NAME The name of the corporation is M-tron Industries, Inc. (the “Corporation”). Article II PURPOSE The business or purposes of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the Delaware General Corporation Law

June 29, 2022 EX-21.1

Subsidiaries of M-tron Industries, Inc.

EX-21.1 8 mpti-ex2117.htm EX-21.1 Exhibit 21.1 M-tron Industries, Inc. Subsidiaries Subsidiary Name State or Country of Organization M-tron Industries, Inc. Investment Piezo Technology, Inc. Florida 100.0 % Piezo Technology India Private Ltd. India 99.9 % M-tron Asia, LLC Delaware 100.0 % M-tron Industries, Ltd. Hong Kong 100.0 %

June 29, 2022 EX-10.1

Form of Transitional Administrative and Management Services Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.1 TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT THIS TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT (this “Agreement”) is dated as of [●], 2022, between The LGL Group, Inc., a Delaware corporation (“LGL”), and M-tron Industries, Inc., a Delaware corporation (“Mtron”, and together with LGL, “Parties”, or each individually, a “Party”). WHEREAS, following the

June 29, 2022 EX-3.2

Form of Amended and Restated Bylaws of M-tron Industries, Inc.

EX-3.2 4 mpti-ex3210.htm EX-3.2 Exhibit B Amended and Restated Bylaws M-tron Industries, Inc. [See Attached] Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF M-TRON INDUSTRIES, INC. Article I OFFICES Section 1.1Registered Office. The registered office of M-tron Industries, Inc. (the “Corporation”) within the State of Delaware shall be located at either (a) the principal place of business of the Corporat

June 29, 2022 10-12B/A

As filed with the Securities and Exchange Commission on June 29, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 1

As filed with the Securities and Exchange Commission on June 29, 2022 File No. 001-41391 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 to FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 46-04579

June 29, 2022 EX-99.1

Information Statement of M-tron Industries, Inc., preliminary and subject to completion, dated May 11, 2022.

Exhibit 99.1 APPENDIX A PRELIMINARY INFORMATION STATEMENT FILED BY M-TRON INDUSTRIES, INC. WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON JUNE 29, 2022; TO BE AMENDED PRELIMINARY AND SUBJECT TO COMPLETION INFORMATION STATEMENT M-tron Industries, Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE This information statement is being furnished by The LGL Group, Inc., a Delaware corporation (the ?Compa

June 7, 2022 LETTER

LETTER

United States securities and exchange commission logo June 7, 2022 James Tivy Chief Financial Officer M-tron Industries, Inc.

May 11, 2022 EX-2

Form of Separation and Distribution Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 2.1 SEPARATION AND DISTRIBUTION AGREEMENT THIS SEPARATION AND DISTRIBUTION AGREEMENT (this ?Agreement?) is dated as of [?], 2022 between The LGL Group, Inc., a Delaware corporation (?LGL?), and M?tron Industries, Inc., a Delaware corporation and, as of the date of this Agreement, a wholly owned subsidiary of LGL (?Mtron?). As used herein, LGL on the one hand, and Mtron, on the other hand,

May 11, 2022 EX-3

Form of Amended and Restated Certificate of Incorporation of M-tron Industries, Inc.

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF M-TRON INDUSTRIES, INC. Article I NAME The name of the corporation is M-tron Industries, Inc. (the ?Corporation?). Article II PURPOSE The business or purposes of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the Delaware General Corporation Law (as amended, restated, suppleme

May 11, 2022 EX-4

2022 Incentive Plan of M-tron Industries, Inc.

Exhibit 4.1 M-tron Industries, Inc. 2022 Incentive Plan Article 1 Establishment and Purpose 1.1Establishment of the Plan. M-tron Industries, Inc., a Delaware corporation (the ?Company?), hereby establishes an incentive compensation plan (as amended from time to time, the ?Plan?), as set forth in this document. 1.2Purpose of the Plan. The purposes of the Plan are to (a) enable the Company and any A

May 11, 2022 EX-10

Form of Transitional Administrative and Management Services Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.1 TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT THIS TRANSITIONAL ADMINISTRATIVE AND MANAGEMENT SERVICES AGREEMENT (this “Agreement”) is dated as of [●], 2022, between The LGL Group, Inc., a Delaware corporation (“LGL”), and M-tron Industries, Inc., a Delaware corporation (“Mtron”, and together with LGL, “Parties”, or each individually, a “Party”). WHEREAS, following the

May 11, 2022 EX-99

Information Statement of M-tron Industries, Inc., preliminary and subject to completion, dated May 11, 2022.

EX-99 9 mpti-ex991174.htm EX-99.1 Exhibit 99.1 APPENDIX A PRELIMINARY INFORMATION STATEMENT FILED BY M-TRON INDUSTRIES, INC. WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON MAY 11, 2022; TO BE AMENDED PRELIMINARY AND SUBJECT TO COMPLETION INFORMATION STATEMENT M-tron Industries, Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE This information statement is being furnished by The LGL Group, Inc., a

May 11, 2022 EX-21

Subsidiaries of M-tron Industries, Inc.

Exhibit 21.1 M-tron Industries, Inc. Subsidiaries Subsidiary Name State or Country of Organization M-tron Industries, Inc. Investment Piezo Technology, Inc. Florida 100.0 % Piezo Technology India Private Ltd. India 99.9 % M-tron Asia, LLC Hong Kong 100.0 % M-tron Industries, Ltd. Hong Kong 100.0 %

May 11, 2022 10-12B

As filed with the Securities and Exchange Commission on May 11, 2022 File No. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITI

As filed with the Securities and Exchange Commission on May 11, 2022 File No. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10 GENERAL FORM FOR REGISTRATION OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 M-tron Industries, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 46-0457994 (State or Other Jurisdictio

May 11, 2022 EX-10

Form of Tax Indemnity and Sharing Agreement by and between The LGL Group, Inc. and M-tron Industries, Inc.

Exhibit 10.2 TAX INDEMNITY AND SHARING AGREEMENT BETWEEN THE LGL GROUP, INC. AND M-TRON INDUSTRIES, INC. Dated as of [?], 2022 Table of Contents Page SECTION 1. Definition of Terms SECTION 2. Allocation of Taxes and Tax-Related Losses. 8 2.1 Allocation of Taxes 8 2.2 Allocation of Deconsolidation Taxes, Distribution Taxes and Transfer Taxes 8 2.3 Tax Payments 8 SECTION 3. Preparation and Filing of

May 11, 2022 EX-3

Form of Amended and Restated Bylaws of M-tron Industries, Inc.

EX-3 4 mpti-ex3210.htm EX-3.2 Exhibit B Amended and Restated Bylaws M-tron Industries, Inc. [See Attached] Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF M-TRON INDUSTRIES, INC. Article I OFFICES Section 1.1Registered Office. The registered office of M-tron Industries, Inc. (the “Corporation”) within the State of Delaware shall be located at either (a) the principal place of business of the Corporatio

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