Lantronix (LTRX) CFO exercises 3,773 RSUs, 1,466 shares withheld for tax

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Lantronix Inc. Chief Financial Officer Brent Michael Stringham reported routine equity compensation activity involving restricted stock units and related tax withholding. On June 1, 2026, he converted a total of 3,773 restricted stock units into common stock in two exercises.

In connection with these vestings, 1,466 shares of Lantronix common stock were withheld to cover required tax obligations, consistent with the applicable RSU award agreements. Footnotes explain that the RSUs were granted in October 2023 and October 2024 and vest in scheduled quarterly installments through September 1, 2027. The filing shows no open‑market purchases or sales, only RSU vesting, share issuance, and tax withholding.

Insider Trade Summary

3,773 shares exercised/converted

Mixed 5 txns

Insider Stringham Brent Michael

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	550	$0.00	--
Exercise	Restricted Stock Units	3,223	$0.00	--
Exercise	Common Stock	550	$0.00	--
Exercise	Common Stock	3,223	$0.00	--
Tax Withholding	Common Stock	1,466	$7.58	$11K

Holdings After Transaction: Restricted Stock Units — 551 shares (Direct, null); Common Stock — 90,875 shares (Direct, null)

Footnotes (1)

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. 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. 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.

Key Figures

RSUs converted: 3,773 shares Tax-withheld shares: 1,466 shares Exercise transactions: 2 transactions +3 more

6 metrics

RSUs converted 3,773 shares Total restricted stock units converting to common stock on June 1, 2026

Tax-withheld shares 1,466 shares Shares of common stock withheld at vesting to cover tax obligations

Exercise transactions 2 transactions Derivative exercises/conversions reported in the Form 4

Tax-withholding transactions 1 transaction Disposition coded as payment of tax liability by delivering securities

RSU grant date 1 October 3, 2023 RSUs vest quarterly through September 1, 2026 per footnote

RSU grant date 2 October 1, 2024 RSUs vest in tranches through September 1, 2027 per footnote

Key Terms

Restricted Stock Units, tax withholding, Exercise or conversion of derivative security, Payment of exercise price or tax liability by delivering securities, +1 more

5 terms

Restricted Stock Units financial

"Represents outstanding RSUs granted on October 3, 2023."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding financial

"shares of Lantronix, Inc. common stock were withheld at vesting to cover required tax withholding."

Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.

Exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

Payment of exercise price or tax liability by delivering securities financial

"transaction_code_description": "Payment of exercise price or tax liability by delivering securities""

vest ratably in equal quarterly installments financial

"The remaining unvested shares subject to the RSUs vest ratably in equal quarterly installments"

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Form 4 Insider Transactions: What Each Field Means →

06/02/2026 - 04:35 PM

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^*

Stringham Brent Michael

(Last)

(First)

(Middle)

C/O LANTRONIX, INC

48 DISCOVERY SUITE 250

(Street)

IRVINE

CALIFORNIA

92618

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
LANTRONIX INC [ LTRX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/01/2026		M⁽¹⁾		550	A	$0	90,875	D
Common Stock	06/01/2026		M⁽²⁾		3,223	A	$0	94,098	D
Common Stock	06/01/2026		F⁽³⁾		1,466	D	$7.58	92,632	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	06/01/2026		M			550	⁽¹⁾	⁽¹⁾	Common Stock	550	$0	551	D
Restricted Stock Units	⁽²⁾	06/01/2026		M			3,223	⁽²⁾	⁽²⁾	Common Stock	3,223	$0	16,117	D

Explanation of Responses:

1. 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.

2. 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.

3. 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.

	/s/ Brent Stringham	06/02/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Lantronix (LTRX) report for its CFO?

Lantronix reported that CFO Brent Michael Stringham had restricted stock units vest and convert into 3,773 shares of common stock. As part of this equity compensation event, certain shares were withheld to satisfy tax obligations, with no open‑market buying or selling reported.

How many Lantronix (LTRX) shares were withheld for taxes in this Form 4?

The filing states that 1,466 shares of Lantronix common stock were withheld at vesting to cover required tax withholding. This tax-withholding disposition is coded as an "F" transaction and does not represent an open-market sale of shares.

How many restricted stock units vested for the Lantronix (LTRX) CFO?

According to the Form 4 data, a total of 3,773 restricted stock units converted into common stock for the CFO. These units were split across two RSU awards and reflect scheduled vesting under previously granted equity compensation agreements.

Were the Lantronix (LTRX) CFO’s transactions open‑market trades?

No. The transactions consist of RSU vesting and share issuance, plus shares withheld for taxes, rather than open‑market purchases or sales. The Form 4 codes indicate derivative exercises and a tax-withholding disposition, all tied to existing compensation awards.

What do the RSU footnotes in the Lantronix (LTRX) Form 4 explain?

The footnotes explain that the RSUs were granted in October 2023 and October 2024 and vest in scheduled quarterly installments through September 1, 2027. Each RSU entitles the holder to receive one share of Lantronix common stock upon vesting.