RICHARDSON ELECTRONICS, LTD. — Director's Dealing 2010

Nov 29, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RICHARDSON ELECTRONICS LTD/DE (RELL)
CIK: 0000355948
Period of Report: 2010-11-24

Reporting Person: Diddell Wendy (EVP Corporate Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-11-24	Common Stock	M	4126	$8.35	Acquired	4126	Direct
2010-11-24	Common Stock	S	4126	$10.9069	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-11-24	Employee Stock Option (Right to Buy)	$8.35	M	4126	Acquired	2015-10-19	Common Stock (4126)	Direct

Footnotes

F1: The exercise and sale reported in this Form 4 were affected pursuant to a Rule 10b5-1 trading plan adpopted by the reporting person.

F2: Partial exercise of an employee stock option of which 1,361 shares each vested on October 19, 2006, 2007, 2008, and 2009