M-tron EVP granted 2,059 shares in stock award

M-tron Industries Executive VP – Finance Linda M. Biles received a grant of 2,059 shares of Common Stock on April 2, 2026, increasing her direct holdings to 29,402 shares.

Rhea-AI Filing Summary

M-tron Industries Executive VP – Finance Linda M. Biles received a grant of 2,059 shares of Common Stock on April 2, 2026, increasing her direct holdings to 29,402 shares. The award was granted at no cash cost to her, reflecting stock-based compensation rather than a market purchase.

The filing also notes prior tax withholding of 617 shares on August 11, 2025 to satisfy obligations related to the vesting of 2,700 restricted shares on August 9, 2025. In addition, she holds stock options covering 10,000 shares of Common Stock at an exercise price of $40.32 per share, expiring on April 4, 2030, with vesting scheduled in stages through 2028.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Biles Linda M

Role Executive VP - Finance

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,059	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	617	$0.00	$0.00
holding	Stock Option (right to buy)	--	--	--

Holdings After Transaction: Common Stock — 29,402 shares (Direct); Stock Option (right to buy) — 10,000 contracts (Direct)

Footnotes (3)

1. F1. Shares were withheld by the Issuer on August 11, 2025 to satisfy tax withholding obligations in connection with the vesting of 2,700 shares of restricted stock on August 9, 2025.
2. F2. Restricted shares, subject to the following vesting: 1,029 shares on 4/30/2026 and 1,030 on 4/30/2027.
3. F3. 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

Stock grant: 2,059 shares Total shares held: 29,402 shares Tax-withheld shares: 617 shares +3 more

6 metrics

Stock grant 2,059 shares Common Stock awarded on April 2, 2026

Total shares held 29,402 shares Direct Common Stock holdings after April 2, 2026 grant

Tax-withheld shares 617 shares Withheld on August 11, 2025 for tax obligations

Restricted stock vesting 2,700 shares Restricted shares vesting on August 9, 2025

Stock options underlying 10,000 shares Common Stock underlying options expiring April 4, 2030

Option exercise price $40.32 per share Exercise price for 10,000-share stock option award

Key Terms

tax withholding obligations, restricted stock, Stock Option (right to buy), vesting, +1 more

5 terms

tax withholding obligations financial

"Shares were withheld by the Issuer on August 11, 2025 to satisfy tax withholding obligations"

restricted stock financial

"in connection with the vesting of 2,700 shares of restricted stock on August 9, 2025"

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.

Stock Option (right to buy) financial

"Stock Option (right to buy) with an exercise price of 40.3200"

vesting financial

"Restricted shares, subject to the following vesting: 1,029 shares on 4/30/2026 and 1,030 on 4/30/2027."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

exercise price financial

"Stock options of the Issuer vesting as follows with an exercise price of 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 insider transaction did M-tron Industries (MPTI) report for Linda M. Biles?

M-tron Industries reported that Executive VP – Finance Linda M. Biles received a grant of 2,059 shares of Common Stock. This stock-based award increased her direct holdings to 29,402 shares and represents compensation, not an open-market share purchase.

How many MPTI shares does Linda M. Biles hold after the latest grant?

After the April 2, 2026 grant, Linda M. Biles directly holds 29,402 shares of M-tron Industries Common Stock. This total includes the newly awarded 2,059 shares and reflects her position following prior tax-withholding share dispositions in 2025.

What was the purpose of the 617-share disposition reported for MPTI’s Linda M. Biles?

The 617-share disposition on August 11, 2025 was for tax withholding. Shares were withheld by M-tron Industries to cover tax obligations tied to the vesting of 2,700 restricted shares that vested on August 9, 2025, rather than an open-market sale.

What stock options does Linda M. Biles hold in M-tron Industries (MPTI)?

Linda M. Biles holds stock options covering 10,000 shares of M-tron Industries Common Stock at an exercise price of $40.32 per share. These options expire on April 4, 2030 and vest in three tranches between April 2026 and April 2028.

How do the restricted shares for MPTI’s Linda M. Biles vest after this Form 4?

The filing shows 2,059 restricted shares and describes additional vesting: 1,029 shares vest on April 30, 2026 and 1,030 shares on April 30, 2027. These future vesting dates create a staggered schedule for when Biles fully earns the related stock.

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

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Accepted by SEC EDGAR 04/07/2026 - 04:43 PM 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^*

Biles Linda M

(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)
	Executive VP - Finance

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/11/2025

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)

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	08/11/2025		F		617(1)	D	$0	27,343	D
Common Stock	04/02/2026		A		2,059(2)	A	$0	29,402	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(3)	04/04/2030	Common Stock	10,000		10,000	D

Explanation of Responses:

1. Shares were withheld by the Issuer on August 11, 2025 to satisfy tax withholding obligations in connection with the vesting of 2,700 shares of restricted stock on August 9, 2025.

2. Restricted shares, subject to the following vesting: 1,029 shares on 4/30/2026 and 1,030 on 4/30/2027.

3. 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/ Linda M. Biles	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)