UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Amendment No. 1) Under the Securities Exchange Act of 1934* Skillsoft PLC -------------------------------------------------------------------------------- (Name of Issuer) American Depositary Shares Each representing an Ordinary Share, par value (euro)0.11 per share -------------------------------------------------------------------------------- (Title of Class of Securities) 830928107 -------------------------------------------------------------------------------- (CUSIP Number) Scott A. Arenare, Esq. Managing Director and General Counsel Warburg Pincus LLC 466 Lexington Avenue New York, New York 10017 (212) 878-0600 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) Copies to: Steven J. Gartner, Esq. Willkie Farr & Gallagher LLP 787 Seventh Avenue New York, NY 10019-6099 (212) 728-8000 November 2, 2006 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box: [ ] NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 240.13d-7 for other parties to whom copies are to be sent. * 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 disclosures provided in a prior cover page. The information required on 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 ("Act") 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). SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Warburg, Pincus Ventures, L.P. I.R.S. #13-3784037 ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) WC ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 9,821,163 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 9,821,163 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,821,163 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.1% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) PN ----------- -------------------------------------------------------------------- SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Warburg Pincus Partners LLC I.R.S. #13-4069737 ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 10,177,986 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 10,177,986 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,177,986 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) OO ----------- -------------------------------------------------------------------- SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Warburg Pincus & Co. I.R.S. #13-6358475 ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 10,177,986 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 10,177,986 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,177,986 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) PN ----------- -------------------------------------------------------------------- SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Warburg Pincus LLC I.R.S. #13-3536050 ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 10,177,986 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 10,177,986 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,177,986 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) OO ----------- -------------------------------------------------------------------- SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Charles R. Kaye ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 10,177,986 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 10,177,986 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,177,986 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) IN ----------- -------------------------------------------------------------------- SCHEDULE 13D ------------------------------------ CUSIP No. 830928107 ------------------------------------ ----------- -------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION Joseph P. Landy ----------- -------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (See Instructions) (b) [X] ----------- -------------------------------------------------------------------- 3 SEC USE ONLY ----------- -------------------------------------------------------------------- 4 SOURCE OF FUNDS (See Instructions) N/A ----------- -------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ----------- -------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ---------------------------- --------- ----------------------------------------- 7 SOLE VOTING POWER 0 --------- ----------------------------------------- NUMBER OF 8 SHARED VOTING POWER SHARES BENEFICIALLY 10,177,986 OWNED BY EACH --------- ----------------------------------------- REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 0 --------- ----------------------------------------- 10 SHARED DISPOSITIVE POWER 10,177,986 ----------- -------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,177,986 ----------- -------------------------------------------------------------------- 12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See Instructions) [ ] ----------- -------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.4% ----------- -------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON (See Instructions) IN ----------- -------------------------------------------------------------------- This Amendment No. 1 to Schedule 13D (the "Amendment No. 1") amends the Schedule 13D originally filed on September 16, 2002 (the "Original 13D"), filed on behalf of Warburg, Pincus Ventures, L.P., a Delaware limited partnership ("WPV"), Warburg Pincus & Co., a New York general partnership ("WP"), and Warburg Pincus LLC, a New York limited liability company ("WP LLC"). This Amendment No. 1 relates to the American Depositary Shares, each representing one Ordinary Share, par value (euro)0.11 per share, of Skillsoft PLC, a public limited liability company organized under the laws of the Republic of Ireland, formerly known as Smartforce PLC (the "Company"). Item 1. Security and Issuer. Item 1 of the Original 13D is hereby amended and restated in its entirety as follows: This statement on Schedule 13D relates to the American Depositary Shares, each representing one Ordinary Share, par value (euro)0.11 per share, of the Company (the "ADSs"). The address of the principal executive offices of the Company is 107 Northeastern Boulevard, Nashua, New Hampshire 03062. Item 2 Identity and Background. Item 2(a) of the Original 13D is hereby amended and restated in its entirety as follows: (a) This statement is filed by WPV, WP, WP LLC, Warburg Pincus Partners LLC, a New York limited liability company ("WPP LLC"), Mr. Charles R. Kaye and Mr. Joseph P. Landy (collectively, the "Reporting Persons"). The Reporting Persons are deemed to be a group within the meaning of Rule 13d-5. WPP LLC, a direct subsidiary of WP, is the sole general partner of WPV. WP LLC manages WPV. Messrs. Charles R. Kaye and Joseph P. Landy are each a Managing General Partner of WP and Co-President and Managing Member of WP LLC. The agreement among the Reporting Persons to file this Schedule 13D jointly in accordance with Rule 13d-1(k)(1) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), is attached hereto as Exhibit 1. The general partners of WP and the members of WP LLC, and their respective business addresses and principal occupations, are set forth on Schedule I hereto. Item 2(c) of the Original 13D is hereby amended to add the following: The principal business of WPP LLC is acting as general partner of WPV and certain other private equity funds. The principal business of each of Mr. Kaye and Mr. Landy is acting as a Managing General Partner of WP and Co-President and Managing Member of WP LLC. Item 3. Source and Amount of Funds or Other Consideration. Item 3 of the Original 13D is hereby amended to add the following: On October 30, 2006 and October 31, 2006, WPV sold an aggregate of 1,080,000 ADSs (the "Sale"), with such amount representing less than 1% of the total ADSs outstanding based on 108,193,405 ADSs outstanding as of August 31, 2006 as disclosed in the Company's Quarterly Report on Form 10-Q for the period ended July 31, 2006, in brokers' transactions or in transactions directly with a market maker pursuant to Rule 144 promulgated under the Securities Act of 1933, as amended. WPV received an aggregate of $6,851,940.00 in gross proceeds from the Sale. On November 2, 2006, WPV distributed an aggregate of 2,378,821 ADSs to its limited partners and to WPP LLC on a pro rata basis (the "Distribution"), with such limited partners and WPP LLC receiving 2,021,998 and 356,823 ADSs, respectively. WPV received no proceeds from the Distribution. Item 5. Interest in Securities of the Issuer Items 5(a) and (b) of the Original 13D are hereby amended and restated in their entirety as follows: (a) WPV is the direct record owner of 9,821,163 ADSs, representing approximately 9.1% of the outstanding ADSs based on a total of 108,193,405 ADSs outstanding as of August 31, 2006, as disclosed in the Company's Quarterly Report on Form 10-Q for the period ended July 31, 2006. WPP LLC is the direct record owner of 356,823 ADSs. Due to their respective relationships with WPV, as of November 3, 2006, each of the other Reporting Persons may be deemed to beneficially own, in the aggregate, 10,177,986 ADSs representing approximately 9.4% of the outstanding ADSs. Each of WPV, WP, WP LLC, WPP LLC, Mr. Kaye and Mr. Landy disclaim beneficial ownership of all ADSs, except to the extent of any pecuniary interest therein. (b) WPV has the power to vote or to direct the vote and to dispose or to direct the disposition of the 9,821,163 ADSs. Each of the other Reporting Persons shares the power to vote or to direct the vote and to dispose or to direct the disposition of the 10,177,986 ADSs they may be deemed to beneficially own as of November 3, 2006. -2- SIGNATURES After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct. Dated: November 3, 2006 WARBURG, PINCUS VENTURES, L.P. By: Warburg Pincus Partners LLC its General Partner By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------- Name: Scott A. Arenare Title: Partner Dated: November 3, 2006 WARBURG PINCUS & CO. By: /s/ Scott A. Arenare ------------------------------------------- Name: Scott A. Arenare Title: Partner Dated: November 3, 2006 WARBURG PINCUS LLC By: /s/ Scott A. Arenare ------------------------------------------- Name: Scott A. Arenare Title: Member Dated: November 3, 2006 WARBURG PINCUS PARTNERS, LLC By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------- Name: Scott A. Arenare Title: Partner Dated: November 3, 2006 By: /s/ Scott A. Arenare ------------------------------------------- Name: Charles R. Kaye By: Scott A. Arenare, Attorney-in-Fact* Dated: November 3, 2006 By: /s/ Scott A. Arenare ------------------------------------------- Name: Joseph P. Landy By: Scott A. Arenare, Attorney-in-Fact** * Power of Attorney given by Mr. Kaye was previously filed with the SEC on March 2, 2006 as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc. ** Power of Attorney given by Mr. Landy was previously filed with the SEC on March 2, 2006 as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc. -2- SCHEDULE I Schedule I of the Original 13D is hereby amended and restated in its entirety as follows: Set forth below is the name, position and present principal occupation of each of the general partners of Warburg Pincus & Co. ("WP") and members of Warburg Pincus LLC ("WP LLC"). Warburg Pincus Partners LLC, a direct subsidiary or WP, is the sole general partner of Warburg, Pincus Ventures, L.P. ("WPV"). WP LLC manages WPV. Except as otherwise indicated, the business address of each of such persons is 466 Lexington Avenue, New York, New York 10017, and each of such persons is a citizen of the United States. GENERAL PARTNERS OF WP ---------------------- ------------------------- ------------------------------------------------------ PRESENT PRINCIPAL OCCUPATION IN ADDITION TO POSITION WITH WP, AND POSITIONS NAME WITH THE REPORTING ENTITIES ------------------------- ------------------------------------------------------ Joel Ackerman Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Scott A. Arenare Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ David Barr Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Harold Brown Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Sean D. Carney Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Mark Colodny Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ David A. Coulter Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Timothy J. Curt Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ W. Bowman Cutter Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Cary J. Davis Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ David W. Dorman Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Michael Graff Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Patrick T. Hackett Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Jeffrey A. Harris Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Stewart J. Hen Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ William H. Janeway Partner of WP; Member and Vice Chairman of WP LLC ------------------------- ------------------------------------------------------ Julie A. Johnson Staples Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ ------------------------- ------------------------------------------------------ Chansoo Joung Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Peter R. Kagan Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Charles R. Kaye Managing General Partner of WP; Managing Member and Co-President of WP LLC ------------------------- ------------------------------------------------------ Henry Kressel Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Kevin Kruse Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Joseph P. Landy Managing General Partner of WP; Managing Member and Co-President of WP LLC ------------------------- ------------------------------------------------------ Sidney Lapidus Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Kewsong Lee Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Jonathan S. Leff Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Philip Mintz Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Rodman W. Moorhead III Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ James Neary Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Bilge Ogut Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Dalip Pathak Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Lionel I. Pincus Partner of WP; Member and Chairman of WP LLC ------------------------- ------------------------------------------------------ Michael F. Profenius Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Stan Raatz Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Henry B. Schacht Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Steven G. Schneider Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Mimi Strouse Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Patrick Sullivan Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Barry Taylor Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Christopher H. Turner Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ John L. Vogelstein Partner of WP; Member and Vice Chairman of WP LLC ------------------------- ------------------------------------------------------ John R. Vrolyk Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Elizabeth H. Weatherman Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ David J. Wenstrup Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ -4- ------------------------- ------------------------------------------------------ Rosanne Zimmerman Partner of WP; Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Pincus & Company LLC* ------------------------- ------------------------------------------------------ WP & Co. Partners, L.P.** ------------------------- ------------------------------------------------------ Warburg Pincus VP Partnership, L.P.*** ------------------------- ------------------------------------------------------ _____________________ * New York limited liability company; primary activity is ownership interest in WP and WP LLC ** New York limited partnership; primary activity is ownership interest in WP *** Delaware limited partnership; primary activity is ownership interest in WP -5- MEMBERS OF WP LLC ----------------- ------------------------- ------------------------------------------------------ PRESENT PRINCIPAL OCCUPATION IN ADDITION TO POSITION WITH WP LLC, AND POSITIONS NAME WITH THE REPORTING ENTITIES ------------------------- ------------------------------------------------------ Joel Ackerman Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Scott A. Arenare Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ David Barr Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Harold Brown Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Sean D. Carney Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Stephen John Coates (1) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Mark Colodny Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ David A. Coulter Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Timothy J. Curt Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ W. Bowman Cutter Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Cary J. Davis Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ David W. Dorman Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Rajiv Ghatalia (2) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Michael Graff Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Patrick T. Hackett Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Jeffrey A. Harris Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Stewart J. Hen Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ William H. Janeway Member and Vice Chairman of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Julie A. Johnson Staples Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Chansoo Joung Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Peter R. Kagan Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Charles R. Kaye Managing Member and Co-President of WP LLC; Managing G ------------------------- ------------------------------------------------------ Rajesh Khanna (2) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ -6- Henry Kressel Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Kevin Kruse Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Joseph P. Landy Managing Member and Co-President of WP LLC; Managing General Partner of WP ------------------------- ------------------------------------------------------ Sidney Lapidus Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Kewsong Lee Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Jonathan S. Leff Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Jeff Leng (3) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ David Li (4) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Nicholas J. Lowcock (1) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Philip Mintz Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Rodman W. Moorhead III Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ James Neary Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Bilge Ogut Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Dalip Pathak Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Lionel I. Pincus Member and Chairman of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Pulak Chandan Prasad (2) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Michael F. Profenius Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Stan Raatz Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Henry B. Schacht Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Steven G. Schneider Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Joseph C. Schull (5) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Mimi Strouse Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Patrick Sullivan Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Chang Q. Sun (4) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Barry Taylor Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Christopher H. Turner Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Simon Turton (1) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ John L. Vogelstein Member and Vice Chairman of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ -7- John R. Vrolyk Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Elizabeth H. Weatherman Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ David J. Wenstrup Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Peter Wilson (1) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Jeremy S. Young (1) Member and Managing Director of WP LLC ------------------------- ------------------------------------------------------ Rosanne Zimmerman Member and Managing Director of WP LLC; Partner of WP ------------------------- ------------------------------------------------------ Pincus & Company LLC* ------------------------- ------------------------------------------------------ (1) Citizen of United Kingdom (2) Citizen of India (3) Citizen of China (4) Citizen of Hong Kong (5) Citizen of Canada * New York limited liability company; primary activity is ownership interest in WP and WP LLC As of October 1, 2006 -8-