STOCK TITAN

Marc Gabelli exercises M-tron (MPTI) subscription rights to add 3,276 shares

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

M-tron Industries director Marc Gabelli exercised subscription rights to acquire additional common stock. On April 20, 2026, he exercised rights to purchase 3,276 shares of Common Stock at $59.00 per share. Following the transaction, he directly holds 45,840 shares of M-tron Industries common stock.

The exercised rights came from a rights distribution in which each common share held as of March 27, 2026 received one subscription right. Five rights entitled the holder to buy one common share at $59.00, and all reported rights in this filing were fully exercised, leaving no remaining rights position.

Positive

  • None.

Negative

  • None.
Insider GABELLI MARC
Role null
Type Security Shares Price Value
X Subscription Rights (right to purchase) 16,380 $0.00 --
X Common Stock 3,276 $59.00 $193K
Holdings After Transaction: Subscription Rights (right to purchase) — 0 shares (Direct, null); Common Stock — 45,840 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Common shares acquired 3,276 shares Common Stock acquired via rights exercise on April 20, 2026
Exercise price $59.00 per share Subscription rights exercise price for Common Stock
Subscription rights exercised 16,380 rights Rights converted into 3,276 Common Stock shares
Post-transaction holdings 45,840 shares Total Common Stock directly held after the exercise
Rights-to-share ratio 5 rights per share Five rights entitle purchase of one Common Stock share
Rights record date March 27, 2026 Date for determining holders receiving subscription rights
Subscription Rights financial
"holders of the Issuer's common stock... received one subscription right (the "Rights")"
Subscription rights are short-term privileges given to existing shareholders to buy additional new shares before the general public, typically at a set price and in proportion to their current holdings. Think of it as getting a coupon for first dibs on extra slices of a pizza so your share of the pie doesn’t shrink; exercising them can be a cheaper way to maintain your ownership and voting power, while ignoring them can reduce your stake and potential future earnings.
Exercise of in-the-money or at-the-money derivative security financial
"transaction_code_description": "Exercise of in-the-money or at-the-money derivative security"
Common Stock financial
"one subscription right... for each share of Common Stock held"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
exercise price financial
"five (5) Rights entitle their holder to purchase one share of Common Stock at an exercise price of $59.00 per share"
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.
SEC Form 4
FORM 4UNITED 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*
GABELLI MARC

(Last)(First)(Middle)
189 MASON STREET

(Street)
GREENWICH CONNECTICUT 06830

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock04/20/2026X3,276A$59(1)45,840D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Subscription Rights (right to purchase)$59(1)04/20/2026X16,38003/31/202604/20/2026Common Stock3,276$00D
Explanation of Responses:
1. 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 entitle their holder to purchase one share of Common Stock at an exercise price of $59.00 per share.
/s/ Marc Gabelli04/28/2026
** Signature of Reporting PersonDate
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 transaction did MPTI director Marc Gabelli report on April 20, 2026?

Marc Gabelli reported exercising subscription rights to acquire common stock. He used rights to purchase 3,276 shares of M-tron Industries, Inc. Common Stock at $59.00 per share, increasing his direct holdings to 45,840 shares after the transaction.

How many MPTI shares did Marc Gabelli acquire through the subscription rights?

He acquired 3,276 shares of M-tron Industries, Inc. Common Stock. These shares were obtained by exercising subscription rights distributed to common shareholders, with the exercise price set at $59.00 per share under the rights offering structure.

What was the exercise price for the MPTI subscription rights used by Marc Gabelli?

The subscription rights allowed purchases at an exercise price of $59.00 per share. Five rights entitled the holder to buy one share of M-tron Industries common stock at this fixed price under the rights distribution described in the footnote.

How many MPTI subscription rights did Marc Gabelli exercise in this Form 4 filing?

He exercised 16,380 subscription rights. Under the terms of the distribution, five rights were needed to purchase one share, resulting in the acquisition of 3,276 shares of M-tron Industries, Inc. common stock at the stated $59.00 exercise price.

What are Marc Gabelli’s MPTI share holdings after exercising the subscription rights?

After exercising the subscription rights, Marc Gabelli directly holds 45,840 shares of M-tron Industries, Inc. common stock. This post-transaction balance reflects the addition of 3,276 newly acquired shares reported in the Form 4 filing.

How did MPTI structure the subscription rights received by common shareholders?

Common shareholders received one subscription right for each share held as of March 27, 2026. When exercisable, five rights entitled the holder to buy one share of M-tron Industries common stock at an exercise price of $59.00 per share.