PDF SOLUTIONS INC — Director's Dealing 2012

Aug 17, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PDF SOLUTIONS INC (PDFS)
CIK: 0001120914
Period of Report: 2012-08-15

Reporting Person: Yu Albert YC (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-15	Common Stock	M	2813	$2.30	Acquired	19162	Direct
2012-08-15	Common Stock	S	2813	$10.37	Disposed	16349	Direct
2012-08-15	Common Stock	M	2084	$4.82	Acquired	18433	Direct
2012-08-15	Common Stock	S	2084	$10.37	Disposed	16349	Direct
2012-08-16	Common Stock	M	3281	$6.21	Acquired	19630	Direct
2012-08-16	Common Stock	S	700	$10.40	Disposed	18930	Direct
2012-08-16	Common Stock	S	2581	$10.40	Disposed	16349	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-08-15	Stock Options (Right to Buy)	$2.30	M	2813	Acquired	2019-07-30	Common Stock (2813)	Direct
2010-08-15	Stock Options (Right to Buy)	$4.82	M	2084	Acquired	2020-05-17	Common Stock (2084)	Direct
2012-08-16	Stock Options (Right to Buy)	$6.21	M	3281	Acquired	2021-05-26	Common Stock (3281)	Direct

Footnotes

F1: Reduced by 1,875 shares of common stock which was inadvertently incorrectly reported under Form 4 dated 5/22/2012.