M-tron Industries (MPTI) director updates holdings after warrant exercise

Q: What insider transaction did M-tron Industries (MPTI) report in this Form 4?

The filing reports that a director of M-tron Industries acquired 306 shares of Common Stock on December 4, 2025 , in connection with the exercise of derivative securities, and reported updated positions in both Common Stock and warrants.

Q: What price was paid for the MPTI shares acquired in the transaction?

The 306 shares of Common Stock were acquired at a price of $47.50 per share , as shown in the non-derivative securities table.

Q: What happened to the MPTI warrants held by the director in this filing?

The director disposed of 1,530 Common Stock Warrants on December 4, 2025 , which were exercisable into 306 shares of Common Stock , and held 2,779 warrants directly after the transaction.

Q: How were the MPTI Common Stock Warrants originally issued to shareholders?

On April 25, 2025 , holders of M-tron Industries Common Stock received a dividend of one Common Stock Warrant for each share of Common Stock held as of March 10, 2025 .

Q: What are the basic terms of the MPTI Common Stock Warrants described in the filing?

When exercisable, five (5) Warrants entitle the holder to purchase one share of Common Stock at an exercise price of $47.50 per share , subject to adjustment in accordance with the terms of the Warrants.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

M-tron Industries, Inc. director reported an insider transaction involving company stock and warrants. On December 4, 2025, the reporting person acquired 306 shares of Common Stock at a price of $47.50 per share, bringing their directly held Common Stock position to 4,267 shares after the transaction. This stock acquisition was linked to derivative securities.

The filing also shows activity in warrants to purchase Common Stock. The director disposed of 1,530 Common Stock Warrants, which were exercisable to acquire 306 shares of Common Stock, and held 2,779 warrants directly after the transaction. According to the explanation, on April 25, 2025, holders of Common Stock received a dividend of one warrant for each share held as of March 10, 2025, with each five warrants exercisable for one Common share at an exercise price of $47.50 per share.

Insider Trade Summary

1,530 shares exercised/converted

Mixed 2 txns

Insider LaPenta Robert V Jr

Role Director

Type	Security	Shares	Price	Value
X	Common Stock Warrants (right to purchase)	1,530	$0.00	--
X	Common Stock	306	$47.50	$15K

Holdings After Transaction: Common Stock Warrants (right to purchase) — 2,779 shares (Direct); Common Stock — 4,267 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 12/23/2025 - 05:40 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LaPenta Robert V Jr

(Last)

(First)

(Middle)

2525 SHADER RD

(Street)

ORLANDO

32804

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
M-tron Industries, Inc. [ MPTI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/04/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/04/2025		X		306	A	$47.5	4,267	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Warrants (right to purchase)	$47.5⁽¹⁾	12/04/2025		X			1,530	10/23/2025	12/23/2025	Common Stock	306	$0	2,779	D

Explanation of Responses:

1. On April 25, 2025, holders of the Issuer's Common Stock, par value $0.01 per share (the "Common Stock"), received a dividend of one Common Stock Warrant (the "Warrants") for each share of Common Stock held by such holder as of March 10, 2025. When exercisable, five (5) Warrants will entitle their holder to purchase one share of Common Stock at an exercise price of $47.50 per share, as may be adjusted in accordance with the terms of the Warrants.

	/s/ Robert V. LaPenta, Jr.	12/23/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did M-tron Industries (MPTI) report in this Form 4?

The filing reports that a director of M-tron Industries acquired 306 shares of Common Stock on December 4, 2025, in connection with the exercise of derivative securities, and reported updated positions in both Common Stock and warrants.

How many MPTI shares does the reporting person own after the transaction?

Following the reported transaction, the director beneficially owns 4,267 shares of M-tron Industries Common Stock, held directly.

What price was paid for the MPTI shares acquired in the transaction?

The 306 shares of Common Stock were acquired at a price of $47.50 per share, as shown in the non-derivative securities table.

What happened to the MPTI warrants held by the director in this filing?

The director disposed of 1,530 Common Stock Warrants on December 4, 2025, which were exercisable into 306 shares of Common Stock, and held 2,779 warrants directly after the transaction.

How were the MPTI Common Stock Warrants originally issued to shareholders?

On April 25, 2025, holders of M-tron Industries Common Stock received a dividend of one Common Stock Warrant for each share of Common Stock held as of March 10, 2025.

What are the basic terms of the MPTI Common Stock Warrants described in the filing?

When exercisable, five (5) Warrants entitle the holder to purchase one share of Common Stock at an exercise price of $47.50 per share, subject to adjustment in accordance with the terms of the Warrants.