RICHARDSON ELECTRONICS, LTD. — Director's Dealing 2012

May 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: RICHARDSON ELECTRONICS LTD/DE (RELL)
CIK: 0000355948
Period of Report: 2012-05-01

Reporting Person: Dudek James (Controller & Chief Accounting)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-05-01	Common Stock	M	1000	$6.23	Acquired	2003	Direct
2012-05-01	Common Stock	S	1000	$12.46	Disposed	1003	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-05-01	Employee stock option (right to buy)	$6.23	M	1000	Disposed	2017-12-17	Common Stock (1000)	Direct

Footnotes

F1: Partial exercise of an employee stock option of which 1,000 shares vested on December 17, 2008, 2009, 2010, 2011, 2012.