[Form 4] Richardson Electronics Ltd Insider Trading Activity

Rhea-AI Filing Summary

Kathleen McNally, EVP Global Supply Chain of Richardson Electronics, Ltd. (RELL), exercised employee stock options and sold shares in a linked set of transactions. She exercised options covering 1,853 shares at $6.90, 3,600 shares at $5.61, and 2,964 shares at $4.26 (totaling 8,417 shares acquired). The reporting shows a subsequent sale of 8,417 common shares at a weighted average price of $10.0077, with prices in the sale ranging from $10.00 to $10.13.

Following these transactions the filing reports beneficial ownership of 45,719 shares. The filing also discloses the vesting schedules for the option grants (vesting 20% per year beginning on the specific grant start dates provided).

Positive

• Options exercised at prices of $6.90, $5.61, and $4.26, showing the grants were actionable
• Sale realized a weighted average price of $10.0077, above the exercise prices

Negative

• Insider sale of 8,417 shares could be perceived as officer liquidity rather than increased ownership

Insights

Securities Analyst

TL;DR Insider exercised options for 8,417 shares and sold the same 8,417 shares at a ~$10.01 weighted average.

The filing documents option exercises totaling 8,417 shares at exercise prices of $6.90, $5.61, and $4.26, immediately followed by the sale of 8,417 shares at a weighted average of $10.0077. That pattern—exercise then sale of the same quantity—is visible in the tables and footnote discloses the sale price range of $10.00 to $10.13. From a trading-impact standpoint, these entries are routine insider liquidity actions rather than strategic ownership changes, leaving 45,719 shares beneficially owned after the transactions.

Corporate Governance Expert

TL;DR The report shows option monetization by an officer, with vesting schedules retained for the grants.

The document shows exercises of employee stock options with clearly stated vesting schedules (vesting at 20% per year beginning on each listed date). The exercised option lots match the shares sold (8,417 each), indicating the officer monetized recently vested or exercisable awards. The report lists remaining beneficial ownership at 45,719 shares. No other governance items, pledges, or related-party transfers are disclosed in this filing.

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

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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^*

MCNALLY KATHLEEN

(Last) (First) (Middle)

40W267 KESLINGER ROAD PO BOX 393

(Street)

LAFOX IL 60147

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
RICHARDSON ELECTRONICS, LTD. [ RELL ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP Global Supply Chain

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025

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	08/12/2025		M		1,853	A	$6.9	47,572	D
Common Stock	08/12/2025		M		3,600	A	$5.61	51,172	D
Common Stock	08/12/2025		M		2,964	A	$4.26	54,136	D
Common Stock	08/12/2025		S		8,417	D	$10.0077(1)	45,719	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	$6.9	08/12/2025		M			1,853	(2)	10/03/2026	Common Stock	1,853	$0	0	D
Employee Stock Option (Right to Buy)	$5.61	08/12/2025		M			3,600	(3)	07/22/2029	Common Stock	3,600	$0	0	D
Employee Stock Option (Right to Buy)	$4.26	08/12/2025		M			2,964	(4)	07/21/2030	Common Stock	2,964	$0	1,836	D

Explanation of Responses:

1. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $10.00 to $10.13 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

2. Options vest 20% per year, beginning 10/03/2017

3. Options vest 20% per year, beginning 07/22/2020

4. Options vest 20% per year, beginning 07/21/2021

	/s/ Robert J. Ben attorney-in-fact for Kathleen McNally	08/14/2025
	** 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.

FAQ

Who filed the Form 4 for Richardson Electronics (RELL)?

Kathleen McNally, EVP Global Supply Chain, is the reporting person named in the filing.

What transactions are reported on the RELL Form 4?

The filing reports the exercise of employee stock options totaling 8,417 shares and the sale of 8,417 common shares.

At what prices were the options exercised and shares sold?

Exercises were at $6.90, $5.61, and $4.26. The shares were sold at a weighted average price of $10.0077 (sale prices ranged $10.00 to $10.13).

How many shares does the reporting person own after these transactions?

The filing reports beneficial ownership of 45,719 shares following the reported transactions.

Do the option grants include vesting information?

Yes. The filing discloses that the options vest 20% per year beginning on the specific grant start dates listed in the form.