Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  SHAHBAZIAN MICHAEL
2. Date of Event Requiring Statement (Month/Day/Year)
06/18/2011
3. Issuer Name and Ticker or Trading Symbol
PDF SOLUTIONS INC [PDFS]
(Last)
(First)
(Middle)
333 W. SAN CARLOS ST., SUITE 700
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, Interim CFO
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SAN JOSE, CA 95110
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (Restricted Stock Units) 9,000 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
SHAHBAZIAN MICHAEL
333 W. SAN CARLOS ST.
SUITE 700
SAN JOSE, CA 95110
      VP, Interim CFO  

Signatures

/s/ Michael Shahbazian 06/24/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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).
(1) On June 10, 2011, the Board of Directors approved a grant to Mr. Shahbazian of stock purchase rights under the Company's 2001 Stock Plan covering 9,000 shares of the Company's Common Stock (the "RSU"). The RSU will vest (and shares will be issued) in the following manner: 3,000 shares subject to the RSU shall vest on June 13, 2011; another 3,000 shares subject to the RSU shall vest on July 13, 2011; and the remaining 3,000 shares subject to the RSU shall vest on August 12, 2011, provided that Mr. Shahbazian remains in continuous service with the Company through each such vesting date.

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