-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, H7lrp36cs5TgPnuOgDxooBTH0+r8o4TuqCFzop0hYD88kBFtKHymSuledJu2WNK1 IygPOLQOnsaMed5z7qDK3w== 0000866035-11-000007.txt : 20110211 0000866035-11-000007.hdr.sgml : 20110211 20110211113842 ACCESSION NUMBER: 0000866035-11-000007 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20110211 DATE AS OF CHANGE: 20110211 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: PDF SOLUTIONS INC CENTRAL INDEX KEY: 0001120914 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING SERVICES [7371] IRS NUMBER: 251701361 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-77927 FILM NUMBER: 11596010 BUSINESS ADDRESS: STREET 1: 333 WEST SAN CARLOS STREET STREET 2: SUITE 700 CITY: SAN JOSE STATE: CA ZIP: 95110 BUSINESS PHONE: 4082807900 MAIL ADDRESS: STREET 1: 333 WEST SAN JOSE STREET STREET 2: SUITE 700 CITY: SAN JOSE STATE: CA ZIP: 95110 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BURNHAM ASSET MANAGEMENT CORP /NY/ CENTRAL INDEX KEY: 0000866035 IRS NUMBER: 231702840 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: BURNHAM ASSET MANAGEMENT CORP STREET 2: 1325 AVENUE OF THE AMERICAS, 26TH FL CITY: NEW YORK STATE: NY ZIP: 10019 BUSINESS PHONE: 2122623100 MAIL ADDRESS: STREET 1: 1325 AVENUE OF THE AMERICAS, 26TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10019 SC 13G/A 1 g13_pdfs12312010.txt 13G/A PDFS 12/31/2010 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G/A (Rule 13d-102) Under the Securities Exchange Act of 1934 (Original Filing)(1) PDF SOLUTIONS INC - -------------------------------------------------------------------------------- (Name of Issuer) COMMON STOCK - -------------------------------------------------------------------------------- (Title of Class of Securities) 693282105 - -------------------------------------------------------------------------------- (CUSIP Number) December 31, 2010 - -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [_] Rule 13d-1(c) [_] Rule 13d-1(d) - ---------- (1) The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 693282105 13G/A Page 1 of 5 Pages - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) BURNHAM ASSET MANAGEMENT CORPORATION 23-1702840 - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- NUMBER OF 5. SOLE VOTING POWER SHARES N/A ----------------------------------------------------------------- BENEFICIALLY 6. SHARED VOTING POWER OWNED BY N/A ----------------------------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING N/A ----------------------------------------------------------------- PERSON 8. SHARED DISPOSITIVE POWER WITH 2,886,971 - -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,886,971 - -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [-] - -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 10.48% - -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IA - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 693282105 13G/A Page 2 of 5 Pages - -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) BURNHAM SECURITIES INC. 13-3435435 - -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] - -------------------------------------------------------------------------------- 3. SEC USE ONLY - -------------------------------------------------------------------------------- 4. CITIZENSHIP OR PLACE OF ORGANIZATION New York - -------------------------------------------------------------------------------- NUMBER OF 5. SOLE VOTING POWER SHARES N/A ----------------------------------------------------------------- BENEFICIALLY 6. SHARED VOTING POWER OWNED BY N/A ----------------------------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING N/A ----------------------------------------------------------------- PERSON 8. SHARED DISPOSITIVE POWER WITH 305,500 - -------------------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 305,500 - -------------------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [-] - -------------------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 1.11% - -------------------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* BD - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No.693282105 13G/A Page 3 of 5 Pages Item 1(a). Name of Issuer: PDF SOLUTIONS INC -------------------------------------------------------------------- Item 1(b). Address of Issuer's Principal Executive Offices: 333 WEST SAN CARLOS STREET, SUITE 700 SAN JOSE, CA 95110 -------------------------------------------------------------------- Item 2(a). Name of Persons Filing: BURNHAM ASSET MANAGEMENT CORPORATION BURNHAM SECURITIES INC. -------------------------------------------------------------------- Item 2(b). Address of Principal Business Office, or if None, Residence: BURNHAM ASSET MANAGEMENT CORPORATION 1325 Avenue of the Americas New York, NY 10019 BURNHAM SECURITIES INC. 1325 Avenue of the Americas New York, NY 10019 -------------------------------------------------------------------- Item 2(c). Citizenship: BURNHAM ASSET MANAGEMENT CORPORATION - DELAWARE BURNHAM SECURITIES INC. - NEW YORK -------------------------------------------------------------------- Item 2(d). Title of Class of Securities: Common Stock -------------------------------------------------------------------- Item 2(e). CUSIP Number: 693282105 -------------------------------------------------------------------- Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a: (a) [X] Broker or dealer registered under Section 15 of the Exchange Act. (b) [_] Bank as defined in Section 3(a)(6) of the Exchange Act. (c) [_] Insurance company as defined in Section 3(a)(19) of the Exchange Act. (d) [_] Investment company registered under Section 8 of the Investment Company Act. (e) [X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [_] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g) [_] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G); (h) [_] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act; (i) [_] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act; (j) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). CUSIP No. 693282105 13G/A Page 4 of 5 Pages Item 4. Ownership. Burnham Asset Management Corporation serves as the investment manager for a number of managed accounts with respect to which it has dispositive authority over the shares reported in this Schedule 13G. The reporting persons disclaim beneficial ownership of the common stock of the Issuer reported herein. Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount beneficially owned: 2,886,971 shares ---------------------------------------------------------------------- (b) Percent of class: 10.48% ---------------------------------------------------------------------- (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote________N/A____________, (ii) Shared power to vote or to direct the vote______N/A____________, (iii) Sole power to dispose or to direct the disposition of N/A , (iv) Shared power to dispose or to direct the disposition of 2,886,971 Burnham Securities Inc. is a registered broker-dealer with a number of discretionary accounts with respect to which it has dispositive authority over the shares reported in this Schedule 13G. The reporting persons disclaim beneficial ownership of the common stock of the Issuer reported herein. Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount beneficially owned: 305,500 shares ---------------------------------------------------------------------- (b) Percent of class: 1.11% ---------------------------------------------------------------------- (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote________N/A____________, (ii) Shared power to vote or to direct the vote______N/A____________, (iii) Sole power to dispose or to direct the disposition of N/A , (iv) Shared power to dispose or to direct the disposition of 305,500 CUSIP No.693282105 13G/A Page 5 of 5 Pages Item 5. Ownership of Five Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities check the following [ ]. ----------------------------------------------------------------------- Item 6. Ownership of More Than Five Percent on Behalf of Another Person. See Item 4. ----------------------------------------------------------------------- Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. N/A ----------------------------------------------------------------------- Item 8. Identification and Classification of Members of the Group. See Item 4. ----------------------------------------------------------------------- Item 9. Notice of Dissolution of Group. N/A ---------------------------------------------------------------------- Item 10. Certifications. "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect." SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. DATED: December 31, 2010 Burnham Asset Management Corporation /s/ Robert Grosshart ---------------------------------------- Robert Grosshart Portfolio Administrator DATED: December 31, 2010 Burnham Securities Inc. /s/ Thomas Calabria ---------------------------------------- Thomas Calabria Vice President Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties for whom copies are to be sent. Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001). EX-99.A4 OTHER AGRMT 2 g13_exhpdfs12312010.txt JOINT FILING AGREEMENT Exhibit 1 AGREEMENT OF JOINT FILING Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby consent to the joint filing on their behalf of a single Schedule 13G and any amendments thereto, with respect to the beneficial ownership by each of the undersigned of shares of common stock of PDF SOLUTIONS INC. The undersigned hereby further agree that this statement may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original, but all of which counterparts shall together constitute one and the same instrument. DATED: December 31, 2010 Burnham Asset Management Corporation /s/ Robert Grosshart ---------------------------------------- Robert Grosshart Portfolio Administrator DATED: December 31, 2010 Burnham Securities Inc. /s/ Thomas Calabria ---------------------------------------- Thomas Calabria Vice President -----END PRIVACY-ENHANCED MESSAGE-----