Linda M. Biles - 09 Apr 2026 Form 4/A - Amendment Insider Report for M-tron Industries, Inc. (MPTI)

Reporting relationship: Executive VP - Finance
Issuer ticker: MPTI
Reported as of: 09 Apr 2026
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 29 Apr 2026, 16:09:55 UTC
Original report date: 16 Apr 2026
Prior SEC filing: 05 Aug 2026
Next SEC filing: 16 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Linda Biles

Key filing fact

Linda M. Biles filed Form 4/A - Amendment for M-tron Industries, Inc. (MPTI) on 29 Apr 2026.

Key facts

This page summarizes Linda M. Biles's Form 4/A - Amendment filing for M-tron Industries, Inc. (MPTI).
2 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 29 Apr 2026, 16:09.

Change

Previous filing in this sequence was filed on 05 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001823023 Primary reporting owner

Biles Linda M

Relationship: Executive VP - Finance
Address: 2525 SHADER RD, ORLANDO
Signature: /s/ Linda Biles
Signature date: 29 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MPTI holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 28,682
Date: 09 Apr 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MPTI transaction Derivative

Subscription Rights (right to purchase)

Sale

Transaction value
Shares: +24,643
Change %
Price: $0.000000^*
Shares after: 2,700
Date: 09 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,928
Exercise price: $59.00
Footnotes: F2, F3

MPTI transaction Derivative

Subscription Rights (right to purchase)

Sale

Transaction value
Shares: +2,700
Change %
Price: $0.000000^*
Shares after: 0
Date: 14 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 540
Exercise price: $59.00
Footnotes: F2, F3

MPTI holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,000
Date: 09 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 10,000
Exercise price: $40.32
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

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.

Footnote F2

On March 30, 2026, holders of the Issuer's common stock, par value $0.01 per share (the "Common Stock"), received one subscription right (the "Rights") for each share of Common Stock held by such holder as of March 27, 2026. When exercisable, five (5) Rights will entitle their holder to purchase one share of Common Stock at an exercise price of $59.00 per share.

Footnote F3

The original Form 4, filed on April 16, 2026, is being amended by this Form 4/A solely to add a sale of the Rights in Table II on April 9, 2026, which was inadvertently omitted from the original filing. As a result of that omission, the amount of securities beneficially owned following the transaction reported on Line 3 of Table II has also been corrected to reflect the accurate, adjusted ending balance.