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  4. [Form 4] LANTRONIX INC Insider Trading Activity

LTRX insider converts 25,000 options; direct holdings 181,454 shares

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

Rhea-AI Filing Summary

Bernhard Bruscha, a director of Lantronix, Inc. (LTRX), reported transactions on 10/07/2025 showing the acquisition of 25,000 common shares by direct exercise of stock options at a $3.57 exercise price. After the transaction Mr. Bruscha directly beneficially owns 181,454 shares. He also discloses 5,166,471 shares held indirectly through TL Investment GmbH, where he serves as managing director. The filing is signed by an attorney-in-fact on 10/08/2025. The option exercised had an original grant date of 11/13/2019 and an expiration date of 11/13/2025, and the filing uses transaction code M indicating exercise of derivative security.

Positive

  • Director exercised options to acquire 25,000 shares at $3.57
  • Direct ownership increased to 181,454 shares, clarifying insider stake
  • Large indirect holding of 5,166,471 shares via TL Investment GmbH indicates significant alignment

Negative

  • None.

Insights

Director exercised options and reports sizable indirect holdings through a related entity.

The director exercised 25,000 stock options at an exercise price of $3.57, converting them into common shares that raise his direct holdings to 181,454 shares. The filing also confirms an existing indirect holding of 5,166,471 shares via TL Investment GmbH, where he is managing director.

This pattern shows alignment between the director and the issuer through both personal and controlled-entity ownership; the main risks to monitor are concentration of indirect holdings and the 11/13/2025 option expiration timeline that may affect future exercises or disclosures.

Small option exercise increases immediately tradeable shares and updates beneficial ownership figures.

The transaction code M indicates an option exercise; 25,000 shares were added at $3.57. Post-transaction direct ownership stands at 181,454 shares, which is a concrete update to the insider ownership profile and could affect float calculations for short-term trading.

Investors and trading desks may note the exercise price and the imminent 11/13/2025 option expiration when modelling potential further exercises within the next month.

Insider BRUSCHA BERNHARD
Role 10% Owner
Type Security Shares Price Value
Exercise Stock Option (Right to buy) 25,000 $0.00 --
Exercise Common Stock 25,000 $3.57 $89K
holding Common Stock -- -- --
Holdings After Transaction: Stock Option (Right to buy) — 0 shares (Direct); Common Stock — 181,454 shares (Direct); Common Stock — 5,166,471 shares (Indirect, By TL Investment GmbH)
Footnotes (1)
  1. [object Object]
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*
BRUSCHA BERNHARD
(Last) (First) (Middle)
C/O LANTRONIX, INC.
48 DISCOVERY, SUITE 250
(Street)
IRVINE CA 92618
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
LANTRONIX INC [ LTRX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
10/07/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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 10/07/2025 M 25,000 A $3.57 181,454 D
Common Stock 5,166,471 I By TL Investment GmbH(1)
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) $3.57 10/07/2025 M 25,000 11/13/2019 11/13/2025 Common Stock 25,000 $0 0 D
Explanation of Responses:
1. Bernhard Bruscha serves as managing director of TL Investment GmbH, a company formed under the laws of Germany and the direct owner of the subject securities.
/s/ Brent Stringham, Attorney-in-fact for Bernhard Bruscha 10/08/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What did Bernhard Bruscha report on Form 4 for LTRX?

He reported an exercise of 25,000 options on 10/07/2025 at an exercise price of $3.57, increasing his direct holdings to 181,454 shares.

How many shares does TL Investment GmbH beneficially own in LTRX?

The filing discloses 5,166,471 shares held indirectly by TL Investment GmbH.

What is the expiration date of the exercised options?

The option had an expiration date of 11/13/2025 with an original grant date of 11/13/2019.

What does transaction code M indicate on this Form 4?

Transaction code M denotes an exercise or conversion of a derivative security into underlying common stock.

When was the Form 4 signed and filed?

The signature by attorney-in-fact is dated 10/08/2025 and the reported transaction date is 10/07/2025.