M-tron Industries (MPTI) president exercises warrants, lifts direct share stake

Rhea-AI Filing Summary

M-tron Industries President William Arnold Drafts reported option-style warrant exercises that increased his direct common stock holdings. On December 19 and 23, 2025, he exercised Common Stock Warrants at an exercise price of $47.50 per share in in-the-money derivative exercises, acquiring a total of 741 shares of Common Stock. These transactions raised his directly held Common Stock position to 11,749 shares. The filing also notes a tiny sale of 3 Common Stock Warrants, a negligible portion of his overall exposure. Separately, he continues to hold a stock option covering 12,500 underlying shares at an exercise price of $40.32, vesting in tranches from 2026 through 2028 and expiring in 2030, which shows substantial remaining derivative-based equity exposure.

Insights

Equity compensation and insider-transactions analyst

Drafts mainly exercised warrants to add shares, with only a token warrant sale.

The filing shows William Arnold Drafts using Common Stock Warrants to acquire 741 shares of M-tron Industries common stock at an exercise price of $47.50 per share. These are in-the-money derivative exercises, converting warrant rights into actual share ownership.

Following the transactions, his direct common stock holdings rise to 11,749 shares, while just 3 warrants were sold, a de minimis derivative disposition. He also retains a stock option over 12,500 underlying shares at $40.32 per share, vesting between 2026 and 2028 and expiring in 2030, indicating a sizable remaining equity incentive position.

Overall, the pattern is primarily exercise-and-hold rather than exercise-and-sell, with the small warrant sale not altering his substantial ongoing exposure. For investors, this reads as a routine compensation-driven adjustment rather than a thesis-changing insider move.

Insider Trade Summary

3,705 shares exercised/converted

Net Sell 6 txns

Insider Drafts William Arnold

Role President

Sold 3 shs ($0.00)

Type	Security	Shares	Price	Value
X	Common Stock Warrants (right to purchase)	2,700	$0.00	--
X	Common Stock	540	$47.50	$26K
X	Common Stock Warrants (right to purchase)	1,005	$0.00	--
Sale	Common Stock Warrants (right to purchase)	3	$0.00	--
X	Common Stock	201	$47.50	$10K
holding	Stock Option (right to buy)	--	--	--

Holdings After Transaction: Common Stock Warrants (right to purchase) — 3,600 shares (Direct); Common Stock — 11,749 shares (Direct); Stock Option (right to buy) — 12,500 shares (Direct)

Footnotes (1)

1. Grant of a stock option of the Issuer vesting as follows: 30% on 4/4/2026, 30% on 4/4/2027, and 40% on 4/4/2028. 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.

Key Figures

Shares acquired via warrant exercise: 741 shares Warrant exercise price: $47.50 per share Direct common shares after transactions: 11,749 shares +4 more

7 metrics

Shares acquired via warrant exercise 741 shares Common Stock from in-the-money warrant exercises on Dec. 19 and 23, 2025

Warrant exercise price <money>$47.50</money> per share Exercise price for Common Stock Warrants converting into M-tron Industries common stock

Direct common shares after transactions 11,749 shares Total M-tron Industries common stock directly held after reported Form 4/A activity

Stock option exercise price <money>$40.32</money> per share Exercise price of remaining stock option over 12,500 underlying shares, expiring 2030

Underlying shares in remaining option 12,500 shares Common shares underlying stock option vesting 2026–2028 and expiring in 2030

Warrants required per share 5 warrants for 1 share Each 5 Common Stock Warrants entitle purchase of one common share at $47.50

Warrants sold 3 warrants Small sale of Common Stock Warrants reported as a derivative transaction

Key Terms

in-the-money derivative exercise, Common Stock Warrants (right to purchase), Stock Option (right to buy), open-market sale, +1 more

5 terms

in-the-money derivative exercise financial

"transaction_action: "in-the-money derivative exercise" for warrant and stock transactions"

Common Stock Warrants (right to purchase) financial

"security_title: "Common Stock Warrants (right to purchase)" in multiple transactions"

Stock Option (right to buy) financial

"security_title: "Stock Option (right to buy)" in derivative holdings section"

open-market sale financial

"transaction_action: "open-market sale" describing the sale of 3 warrants"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

dividend of one Common Stock Warrant financial

"footnote: holders received "a dividend of one Common Stock Warrant" per common share"

Form 4 Insider Transactions: What Each Field Means →

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^*

Drafts William Arnold

(Last) (First) (Middle)

2525 SHADER RD

(Street)

ORLANDO FLORIDA 32804

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
12/19/2025

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

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

4. If Amendment, Date of Original Filed (Month/Day/Year)
12/23/2025

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/19/2025		X		201	A	$47.5	11,209	D
Common Stock	12/23/2025		X		540	A	$47.5	11,749	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$40.32							04/04/2026(1)	04/04/2030	Common Stock	12,500		12,500	D
Common Stock Warrants (right to purchase)	$47.5(2)	12/19/2025		X		1,005		10/23/2025	12/23/2025	Common Stock	201	$0	6,303	D
Common Stock Warrants (right to purchase)	$47.5(2)	12/19/2025		S			3	10/23/2025	12/23/2025	Common Stock	0	$0	6,300	D
Common Stock Warrants (right to purchase)	$47.5(2)	12/23/2025		X		2,700		10/23/2025	12/23/2025	Common Stock	540	$0	3,600	D

Explanation of Responses:

1. Grant of a stock option of the Issuer vesting as follows: 30% on 4/4/2026, 30% on 4/4/2027, and 40% on 4/4/2028.

2. 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/ William A. Drafts	04/07/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did MPTI President William Arnold Drafts report in this Form 4/A?

He reported in-the-money exercises of Common Stock Warrants to acquire 741 M-tron Industries common shares at an exercise price of $47.50 per share. These transactions increased his direct holdings to 11,749 common shares following the reported activity.

Did William Arnold Drafts sell or buy MPTI shares on the open market in this filing?

The filing shows derivative exercises, not open-market stock purchases or sales. He acquired shares by exercising Common Stock Warrants, while only 3 warrants were recorded as a sale, a negligible amount relative to his overall equity exposure.

What is William Arnold Drafts’ direct common stock position in M-tron Industries after these transactions?

After exercising Common Stock Warrants, his direct holdings total 11,749 shares of M-tron Industries common stock. This reflects the addition of 741 newly acquired shares through in-the-money warrant exercises reported for December 19 and December 23, 2025.

What derivative equity awards does William Arnold Drafts still hold in MPTI after this Form 4/A?

He continues to hold a stock option (right to buy) over 12,500 underlying M-tron Industries common shares with an exercise price of $40.32, vesting in stages from 2026 through 2028 and expiring in 2030.

How were the M-tron Industries Common Stock Warrants originally issued to shareholders?

A footnote explains that on April 25, 2025, each holder of M-tron Industries common stock received one Common Stock Warrant per share held as of March 10, 2025. Five warrants entitle the holder to purchase one common share at $47.50 per share.

Is this MPTI Form 4/A more about exercising warrants or selling them?

It is primarily about exercising Common Stock Warrants to acquire additional common shares. The filing records substantial in-the-money exercises and only a minimal sale of 3 warrants, leaving William Arnold Drafts with higher direct share ownership and a large remaining stock option position.