Brent Michael Stringham - 01 Jun 2026 Form 4 Insider Report for LANTRONIX INC (LTRX)

Reporting relationship: Chief Financial Officer
Issuer ticker: LTRX
Reported as of: 01 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Jun 2026, 16:35:14 UTC
Prior SEC filing: 03 Mar 2026
Next SEC filing: 14 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Brent Stringham

Key filing fact

Brent Michael Stringham filed Form 4 for LANTRONIX INC (LTRX) on 02 Jun 2026.

Key facts

This page summarizes Brent Michael Stringham's Form 4 filing for LANTRONIX INC (LTRX).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 02 Jun 2026, 16:35.

Change

Previous filing in this sequence was filed on 03 Mar 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 disclosures.

View source filing

Reporting Owners (1)

CIK 0002038019 Primary reporting owner

Stringham Brent Michael

Relationship: Chief Financial Officer
Address: C/O LANTRONIX, INC, 48 DISCOVERY SUITE 250, IRVINE
Signature: /s/ Brent Stringham
Signature date: 02 Jun 2026

Reported non-derivative transactions

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

LTRX transaction

Common Stock

Options Exercise

Transaction value
Shares: +550
Change %: +0.61%
Price: $0.000000^*
Shares after: 90,875
Date: 01 Jun 2026
Ownership: Direct
Footnotes: F1

LTRX transaction

Common Stock

Options Exercise

Transaction value
Shares: +3,223
Change %: +3.5%
Price: $0.000000^*
Shares after: 94,098
Date: 01 Jun 2026
Ownership: Direct
Footnotes: F2

LTRX transaction

Common Stock

Tax liability

Transaction value
Shares: -1,466
Change %: -1.6%
Price: $7.58^*
Shares after: 92,632
Date: 01 Jun 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

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

LTRX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -550
Change %: -50%
Price: $0.000000^*
Shares after: 551
Date: 01 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 550
Exercise price
Footnotes: F1

LTRX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -3,223
Change %: -17%
Price: $0.000000^*
Shares after: 16,117
Date: 01 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 3,223
Exercise price
Footnotes: F2

^* 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

Represents outstanding RSUs granted on October 3, 2023. The remaining unvested shares subject to the RSUs vest ratably in equal quarterly installments through September 1, 2026. Each RSU represents the right to receive one share of the issuer's common stock.

Footnote F2

Represents outstanding RSUs granted on October 1, 2024. The RSUs shall vest such that one-third (1/3) of the shares vest on September 1, 2025 and the remaining two-thirds (2/3) of the total number of shares vest quarterly thereafter beginning on December 1, 2025, such that one hundred percent (100%) of the RSUs will be fully vested on September 1, 2027. Each RSU represents the right to receive one share of the issuer's common stock.

Footnote F3

In accordance with the terms of the applicable RSU award agreements, 1,466 shares of Lantronix, Inc. common stock were withheld at vesting to cover required tax withholding.