Key facts
- This page summarizes Brent Michael Stringham's Form 4 filing for LANTRONIX INC (LTRX).
- 7 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 03 Dec 2025, 21:01.
Brent Michael Stringham - 01 Dec 2025 Form 4 Insider Report for LANTRONIX INC (LTRX)
- Reporting relationship
- Chief Financial Officer
- Issuer ticker
- LTRX
- Reported as of
- 01 Dec 2025
- Net transaction value
- -$7,726
- SEC form
- 4
- Accepted by SEC
- 03 Dec 2025, 21:01:05 UTC
- Prior SEC filing
- 03 Sep 2025
- Next SEC filing
- 03 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Brent Stringham
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Brent Michael Stringham filed Form 4 for LANTRONIX INC (LTRX) on 03 Dec 2025.
Change
- Previous filing in this sequence was filed on 03 Sep 2025.
- Current net transaction value: -$7,726.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
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
- 03 Dec 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
LTRX
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +375
- Change %
- +0.44%
- Price
- $0.000000
- Shares after
- 85,815
- Date
- 01 Dec 2025
- Ownership
- Direct
- Footnotes
- F1
LTRX
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +550
- Change %
- +0.64%
- Price
- $0.000000
- Shares after
- 86,365
- Date
- 01 Dec 2025
- Ownership
- Direct
- Footnotes
- F2
LTRX
transaction
Common Stock
Options Exercise
- Transaction value
- $0
- Shares
- +3,223
- Change %
- +3.7%
- Price
- $0.000000
- Shares after
- 89,588
- Date
- 01 Dec 2025
- Ownership
- Direct
- Footnotes
- F3
LTRX
transaction
Common Stock
Tax liability
- Transaction value
- $7,726
- Shares
- -1,483
- Change %
- -1.7%
- Price
- $5.21
- Shares after
- 88,105
- Date
- 01 Dec 2025
- Ownership
- Direct
- Footnotes
- F4
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
- $0
- Shares
- -375
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 01 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 375
- Exercise price
- Footnotes
- F1
LTRX
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -550
- Change %
- -25%
- Price
- $0.000000
- Shares after
- 1,651
- Date
- 01 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 550
- Exercise price
- Footnotes
- F2
LTRX
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- $0
- Shares
- -3,223
- Change %
- -12%
- Price
- $0.000000
- Shares after
- 22,563
- Date
- 01 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 3,223
- Exercise price
- Footnotes
- F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
Represents outstanding RSUs granted on January 2, 2022. The remaining unvested shares subject to the RSUs vest ratably in equal quarterly installments through December 1, 2025. Each RSU represents the right to receive one share of the issuer's common stock.
Footnote F2
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 F3
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 F4
In accordance with the terms of the applicable RSU award agreements, 1,483 shares of Lantronix, Inc. common stock were withheld at vesting to cover required tax withholding.