M-tron CEO sells shares to cover tax withholding

M-tron Industries, Inc. CEO and CFO Cameron Pforr reported an open-market sale of 840 shares of common stock at $66.78 per share on May 4, 2026.

Rhea-AI Filing Summary

M-tron Industries, Inc. CEO and CFO Cameron Pforr reported an open-market sale of 840 shares of common stock at $66.78 per share on May 4, 2026. A footnote explains these shares were sold to satisfy tax withholding obligations tied to the vesting of 2,823 shares of restricted stock on April 30, 2026, making this a compensation-related, non-discretionary sale rather than a typical portfolio decision.

After the transaction, Pforr directly holds 26,806 shares of common stock. He also holds stock options covering 24,560 underlying shares of common stock at an exercise price of $40.32 per share, expiring on April 4, 2030. These options vest in tranches of 30% on April 4, 2026, 30% on April 4, 2027, and 40% on April 4, 2028.

Insights

Equity compensation and insider-trading analyst

Routine tax-related sale; core equity position and options remain substantial.

The filing shows CEO and CFO Cameron Pforr sold 840 shares at $66.78 per share. A footnote states the sale was solely to cover tax withholding obligations on the vesting of 2,823 restricted shares, indicating a mechanical compensation event rather than a discretionary reduction of exposure.

Following the sale, Pforr still directly owns 26,806 common shares and holds stock options over 24,560 underlying shares at an exercise price of $40.32, expiring on April 4, 2030. The options vest 30% on April 4, 2026, 30% on April 4, 2027, and 40% on April 4, 2028, underscoring ongoing long-term equity alignment.

Insider Trade Summary

Net Seller: 840 shares

Net Sell 2 txns

Insider Pforr Cameron

Role CEO and CFO

Sold 840 shs ($56K)

Type	Security	Shares	Price	Value
Sale	Common Stock	840	$66.78	$56K
holding	Stock Option (right to buy)	--	--	--

Holdings After Transaction: Common Stock — 26,806 shares (Direct); Stock Option (right to buy) — 24,560 contracts (Direct)

Footnotes (2)

1. F1. Shares were sold to satisfy tax withholding obligations in connection with the vesting of 2,823 shares of restricted stock on April 30, 2026.
2. F2. Stock options of the Issuer vesting as follows: 30% on 4/4/2026, 30% on 4/4/2027, and 40% on 4/4/2028

Key Figures

Shares sold: 840 shares Sale price per share: $66.78 per share Common shares held after sale: 26,806 shares +3 more

6 metrics

Shares sold 840 shares Common stock sold on May 4, 2026 to cover tax withholding

Sale price per share $66.78 per share Price for 840 common shares sold on May 4, 2026

Common shares held after sale 26,806 shares Direct common stock ownership following the reported transaction

Restricted shares vesting 2,823 shares Restricted stock that vested on April 30, 2026

Option exercise price $40.32 per share Exercise price for stock options over 24,560 underlying shares

Underlying shares in options 24,560 shares Common stock underlying options expiring April 4, 2030

Key Terms

restricted stock, tax withholding obligations, Stock Option (right to buy), exercise price

4 terms

restricted stock financial

"vesting of 2,823 shares of restricted stock on April 30, 2026"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

tax withholding obligations financial

"Shares were sold to satisfy tax withholding obligations in connection with the vesting"

Stock Option (right to buy) financial

"security_title": "Stock Option (right to buy)""

exercise price financial

"exercisePrice": "40.3200""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did MPTI CEO Cameron Pforr report in this Form 4 filing?

He reported selling 840 shares of M-tron Industries common stock at $66.78 per share. A footnote clarifies the shares were sold to cover tax withholding obligations from vesting of 2,823 restricted shares, making it a compensation-driven, routine transaction rather than a discretionary portfolio sale.

Why did MPTI CEO Cameron Pforr sell 840 shares of stock?

The 840 shares were sold to satisfy tax withholding obligations related to vesting of 2,823 restricted stock shares on April 30, 2026. This means the sale was driven by tax requirements associated with equity compensation, not by an independent decision to reduce his investment position.

How many MPTI shares does Cameron Pforr own after this transaction?

After the tax-related sale, Cameron Pforr directly owns 26,806 shares of M-tron Industries common stock. This figure reflects his remaining equity stake following the 840-share sale used to cover taxes from his restricted stock vesting event disclosed in the filing.

What stock options does MPTI CEO Cameron Pforr hold according to this Form 4?

He holds stock options over 24,560 underlying shares of M-tron Industries common stock at a $40.32 exercise price, expiring April 4, 2030. These options vest 30% on April 4, 2026, another 30% on April 4, 2027, and the remaining 40% on April 4, 2028.

Is the MPTI insider sale by Cameron Pforr a strong bearish signal?

The filing frames it as a routine, tax-driven sale. The 840 shares sold were specifically to cover tax withholding on 2,823 restricted shares vesting, and he retains 26,806 common shares plus options over 24,560 shares, suggesting ongoing significant equity exposure to M-tron Industries.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/06/2026 - 04:41 PM EDT Learn about SEC filing dates

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^*

Pforr Cameron

(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)
	CEO and CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026

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)

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	05/04/2026		S		840(1)	D	$66.78	26,806	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(2)	04/04/2030	Common Stock	24,560		24,560	D

Explanation of Responses:

1. Shares were sold to satisfy tax withholding obligations in connection with the vesting of 2,823 shares of restricted stock on April 30, 2026.

2. Stock options of the Issuer vesting as follows: 30% on 4/4/2026, 30% on 4/4/2027, and 40% on 4/4/2028

	/s/ Cameron Pforr	05/06/2026
	** 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)