UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 SCHEDULE 13D/A

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 12)*

                    INTEGRA LIFESCIENCES HOLDINGS CORPORATION
                                (Name of Issuer)

                     COMMON STOCK, PAR VALUE $.01 PER SHARE
                         (Title of Class of Securities)

                                    457985208
                                 (CUSIP Number)

                              Stephen M. Vine, Esq.
                    Akin, Gump, Strauss, Hauer & Feld, L.L.P.
                               590 Madison Avenue
                            New York, New York 10022
                                 (212) 872-1000
                        -----------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 MARCH 31, 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 ss.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).


                         Continued on following page(s)
                               Page 1 of 17 Pages
                             Exhibit Index: Page 10

CUSIP NO. 457985208 PAGE 2 OF 18 PAGES 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) QUANTUM INDUSTRIAL PARTNERS LDC 2 Check the Appropriate Box If a Member of a Group (See Instructions) a. [ ] b. [X] 3 SEC Use Only 4 Source of Funds (See Instructions) Not Applicable 5 Check Box If Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) [ ] 6 Citizenship or Place of Organization Cayman Islands 7 Sole Voting Power Number of 1,073,181 Shares Beneficially 8 Shared Voting Power Owned By 0 Each Reporting 9 Sole Dispositive Power Person 1,073,181 With 10 Shared Dispositive Power 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 1,073,181 12 Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [X] 13 Percent of Class Represented By Amount in Row (11) 3.8% 14 Type of Reporting Person (See Instructions) OO; IV

CUSIP NO. 457985208 PAGE 3 OF 18 PAGES 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) QIH MANAGEMENT INVESTOR, L.P. 2 Check the Appropriate Box If a Member of a Group (See Instructions) a. [ ] b. [X] 3 SEC Use Only 4 Source of Funds (See Instructions) Not Applicable 5 Check Box If Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) 6 Citizenship or Place of Organization Delaware 7 Sole Voting Power Number of 1,073,181 Shares Beneficially 8 Shared Voting Power Owned By 0 Each Reporting 9 Sole Dispositive Power Person 1,073,181 With 10 Shared Dispositive Power 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 1,073,181 12 Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [X] 13 Percent of Class Represented By Amount in Row (11) 3.8% 14 Type of Reporting Person (See Instructions) PN; IA

CUSIP NO. 457985208 PAGE 4 OF 18 PAGES 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) QIH MANAGEMENT LLC 2 Check the Appropriate Box If a Member of a Group (See Instructions) a. [ ] b. [X] 3 SEC Use Only 4 Source of Funds (See Instructions) Not Applicable 5 Check Box If Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) 6 Citizenship or Place of Organization Delaware 7 Sole Voting Power Number of 1,073,181 Shares Beneficially 8 Shared Voting Power Owned By 0 Each Reporting 9 Sole Dispositive Power Person 1,073,181 With 10 Shared Dispositive Power 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 1,073,181 12 Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [X] 13 Percent of Class Represented By Amount in Row (11) 3.8% 14 Type of Reporting Person (See Instructions) OO

CUSIP NO. 457985208 PAGE 5 OF 18 PAGES 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) SOROS FUND MANAGEMENT LLC 2 Check the Appropriate Box If a Member of a Group (See Instructions) a. [ ] b. [X] 3 SEC Use Only 4 Source of Funds (See Instructions) Not Applicable 5 Check Box If Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) 6 Citizenship or Place of Organization Delaware 7 Sole Voting Power Number of 1,073,181 Shares Beneficially 8 Shared Voting Power Owned By 0 Each Reporting 9 Sole Dispositive Power Person 1,073,181 With 10 Shared Dispositive Power 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 1,073,181 12 Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [X] 13 Percent of Class Represented By Amount in Row (11) 3.8% 14 Type of Reporting Person (See Instructions) OO; IA

CUSIP NO. 457985208 PAGE 6 OF 18 PAGES 1 Names of Reporting Persons I.R.S. Identification Nos. of above persons (entities only) GEORGE SOROS (in the capacity described herein) 2 Check the Appropriate Box If a Member of a Group (See Instructions) a. [ ] b. [X] 3 SEC Use Only 4 Source of Funds (See Instructions) Not Applicable 5 Check Box If Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e) 6 Citizenship or Place of Organization United States 7 Sole Voting Power Number of 1,356,596 Shares Beneficially 8 Shared Voting Power Owned By 0 Each Reporting 9 Sole Dispositive Power Person 1,356,596 With 10 Shared Dispositive Power 0 11 Aggregate Amount Beneficially Owned by Each Reporting Person 1,356,596 12 Check Box If the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) [ ] 13 Percent of Class Represented By Amount in Row (11) 4.8% 14 Type of Reporting Person (See Instructions) IA

CUSIP NO. 457985208 PAGE 7 OF 18 PAGES This Amendment No. 12 to Schedule 13D relates to shares of Common Stock, $0.01 par value per share (the "Shares"), of Integra LifeSciences Holdings Corporation (the "Issuer"). This Amendment No. 12 supplementally amends the initial statement on Schedule 13D, dated April 8, 1999, and all amendments thereto (collectively, the "Initial Statement"), filed by the Reporting Persons. This Amendment No. 12 is being filed by the Reporting Persons to report that the Reporting Persons have ceased to own at least 5% of the issued and outstanding Shares of the Issuer. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Initial Statement. The Initial Statement is supplementally amended as follows. ITEM 2. IDENTITY AND BACKGROUND. This Statement is being filed on behalf of each of the following persons (collectively, the "Reporting Persons"): i) Quantum Industrial Partners LDC ("QIP"); ii) QIH Management Investor, L.P. ("QIHMI"); iii) QIH Management LLC ("QIH Management"); iv) Soros Fund Management LLC ("SFM LLC") and v) Mr. George Soros ("Mr. Soros"). This Statement relates to Shares held for the accounts of QIP and SFM Domestic Investments LLC ("SFM Domestic Investments"). QIHMI is a minority shareholder of, and is vested with investment discretion with respect to portfolio assets held for the account of, QIP. The sole general partner of QIHMI is QIH Management. SFM LLC is the sole managing member of QIH Management. Mr. Soros is the Chairman of SFM LLC and the sole managing member of SFM Domestic Investments. On December 27, 2002, Mr. Soros appealed a decision of the 11e Chambre du Tribunal Correctionnel in Paris, France that fined him 2.2 million euros on December 20, 2002 based on a finding of insider trading with respect to trading in securities of Societe Generale in 1988. On March 24, 2005, the Paris Court of Appeal affirmed the decision of the 11e Chambre du Tribunal Correctionnel. Mr. Soros has filed an appeal at the French Cour de Cassation where the matter is currently pending. Mr. Soros has elected to provide the foregoing information on a voluntary basis. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER. According to information provided by the Issuer in its most recent quarterly report on Form 10-Q, the number of Shares outstanding was 28,435,001 as of March 10, 2006. (a) (i) As of April 3, 2006, each of QIP, QIHMI, QIH Management and SFM LLC may be deemed the beneficial owner of 1,073,181 Shares (approximately 3.8% of the total number of Shares outstanding).

CUSIP NO. 457985208 PAGE 8 OF 18 PAGES (ii) As of April 3, 2006, Mr. Soros may be deemed the beneficial owner of 1,356,596 Shares (approximately 4.8% of the total number of Shares outstanding). This number includes (A) 1,073,181 Shares held for the account of QIP and (B) 283,415 Shares held for the account of SFM Domestic Investments. (b) (i) As of April 3, 2006, each of QIP, QIHMI, QIH Management and SFM LLC (by virtue of the QIP Contract) and Mr. Soros (as a result of his position with SFM LLC) may be deemed to have the sole power to direct the voting and disposition of the 1,073,181 Shares held for the account of QIP. (ii) As of April 3, 2006, Mr. Soros in his capacity as the sole managing member of SFM Domestic Investments may be deemed to have the sole power to direct the voting and disposition of the 283,415 Shares held for the account of SFM Domestic Investments. (c) As of April 3, 2006, except for the transactions listed on Annex A hereto, all of which were effected in the over-the-counter market in routine brokerage transactions, there have been no transactions with respect to the Shares since February 24, 2006 (the date of filing of the Reporting Persons' last statement on Schedule 13D) by any of the Reporting Persons. (d) (i) The shareholders of QIP, including Quantum Industrial Holdings, Ltd., a British Virgin Islands international business company, have the right to participate in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of QIP in accordance with their ownership interests in QIP. (ii) Certain members of SFM Domestic Investments have the right to participate in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of SFM Domestic Investments. (e) The Reporting Persons ceased to be the beneficial owners of more than 5% of the issued and outstanding Shares on March 31, 2006.

CUSIP NO. 457985208 PAGE 9 OF 18 PAGES SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct. Date: April 4, 2006 QUANTUM INDUSTRIAL PARTNERS LDC By: /s/ Jodye M. Anzalotta --------------------------------- Jodye M. Anzalotta Attorney-in-Fact QIH MANAGEMENT INVESTOR, L.P. By: QIH Management LLC, its General Partner By: Soros Fund Management LLC, its Managing Member By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel QIH MANAGEMENT LLC By: Soros Fund Management LLC, its Managing Member By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel SOROS FUND MANAGEMENT LLC By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel GEORGE SOROS By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Attorney-in-Fact

CUSIP NO. 457985208 PAGE 10 OF 18 PAGES EXHIBIT INDEX PAGE NO. A. Joint Filing Agreement, dated as of April 4, 2006, by and among Quantum Industrial Partners LDC, QIH Management Investor, L.P., QIH Management LLC, Soros Fund Management LLC and Mr. George Soros 11

CUSIP NO. 457985208 PAGE 11 OF 18 PAGES EXHIBIT A JOINT FILING AGREEMENT The undersigned hereby agree that Amendment No. 12 to the Schedule 13D with respect to the Common Stock, $0.01 par value per share of Integra LifeSciences Holdings Corporation, dated as of April 4, 2006, is, and any amendments thereto (including amendments on Schedule 13D) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934. Date: April 4, 2006 QUANTUM INDUSTRIAL PARTNERS LDC By: /s/ Jodye M. Anzalotta --------------------------------- Jodye M. Anzalotta Attorney-in-Fact QIH MANAGEMENT INVESTOR, L.P. By: QIH Management LLC, its General Partner By: Soros Fund Management LLC, its Managing Member By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel QIH MANAGEMENT LLC By: Soros Fund Management LLC, its Managing Member By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel SOROS FUND MANAGEMENT LLC By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Assistant General Counsel GEORGE SOROS By: /s/ Jodye M. Anzalotta -------------------------------- Jodye M. Anzalotta Attorney-in-Fact

CUSIP NO. 457985208 PAGE 12 OF 18 PAGES ANNEX A RECENT TRANSACTIONS IN THE SECURITIES OF INTEGRA LIFESCIENCES HOLDINGS CORPORATION FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 27, 2006 Sale 1,900 $41.30 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 27, 2006 Sale 100 $41.34 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 27, 2006 Sale 100 $41.35 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 27, 2006 Sale 200 $41.37 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 27, 2006 Sale 200 $41.39 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 2,500 $41.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 5,700 $41.01 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 4,100 $41.02 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 4,600 $41.03 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 2,345 $41.04 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 809 $41.05 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 1,091 $41.06 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 200 $41.07 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 800 $41.10 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 200 $41.11 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 600 $41.12 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 556 $41.13 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 400 $41.22 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 100 $41.23 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic February 28, 2006 Sale 200 $41.28 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 2,000 $40.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 700 $40.01 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 100 $40.02 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 13 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 200 $40.07 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 100 $40.08 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 2,600 $40.09 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 92 $40.11 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 200 $40.12 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 100 $40.14 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 408 $40.10 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 6 2006 Sale 2,700 $41.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 11,589 $40.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 2,672 $40.01 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 3,600 $40.02 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 600 $40.03 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 334 $40.04 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 1,200 $40.05 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 400 $40.06 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 596 $40.07 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 800 $40.08 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 400 $40.09 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 400 $40.10 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 400 $40.11 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 210 $40.12 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 1,700 $40.13 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 1,400 $40.14 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 2,900 $40.15 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 2,100 $40.16 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 600 $40.17 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 14 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 800 $40.18 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 1,600 $40.19 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 800 $40.20 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 300 $40.21 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 400 $40.22 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 200 $40.23 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 700 $40.24 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 799 $40.25 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 300 $40.26 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 900 $40.27 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 200 $40.28 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 7, 2006 Sale 200 $40.29 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 27, 2006 Sale 503 $40.18 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 800 $40.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 25,000 $40.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 200 $40.01 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 200 $40.02 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 100 $40.04 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 100 $40.05 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 100 $40.09 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 29, 2006 Sale 100 $40.10 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 2,000 $40.00 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 1,900 $40.01 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 300 $40.02 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 400 $40.03 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 600 $40.05 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 400 $40.06 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 15 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 700 $40.07 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 900 $40.08 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 600 $40.09 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 438 $40.10 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 354 $40.11 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 500 $40.12 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 400 $40.13 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 100 $40.14 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 5,469 $40.15 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 30, 2006 Sale 39 $40.16 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.50 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.53 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.54 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 700 $40.55 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 700 $40.56 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 300 $40.57 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 400 $40.58 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 400 $40.59 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 400 $40.60 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 4 $40.61 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.62 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 2 $40.64 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 300 $40.67 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 300 $40.68 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.69 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.70 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 16 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.71 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.73 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.74 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.75 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.76 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.78 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.80 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.81 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 300 $40.83 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.85 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.87 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 100 $40.88 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 288 $40.89 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.90 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31 2006 Sale 125,000 $40.90 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31 2006 Sale 125,000 $40.90 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.91 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 300 $40.93 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 1,300 $40.94 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 600 $40.95 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 606 $40.96 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic March 31, 2006 Sale 200 $40.98 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 100 $40.52 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 100 $40.53 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.54 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.55 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 17 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 200 $40.57 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 400 $40.58 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 600 $40.59 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 100 $40.60 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.61 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 400 $40.62 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 304 $40.63 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 781 $40.64 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 600 $40.65 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 400 $40.66 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 600 $40.67 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 500 $40.68 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 584 $40.69 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.70 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 519 $40.71 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 500 $40.72 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.73 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 200 $40.74 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 800 $40.75 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.76 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 300 $40.77 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 102 $40.78 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 424 $40.79 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 786 $40.80 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 200 $40.81 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 100 $40.82 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- -------------

CUSIP NO. 457985208 PAGE 18 OF 18 PAGES FOR THE ACCOUNT OF DATE OF NATURE OF NUMBER OF PRICE TRANSACTION TRANSACTION SECURITIES - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- Quantum Industrial Partners LDC/SFM Domestic April 3, 2006 Sale 100 $40.84 Investments LLC /1/ - ---------------------------------------------- ------------------- ------------------ ---------------- ------------- __________________ 1 For each of these transactions, approximately 79.11% of the shares of common stock, par value $0.01 per share ("Shares"), sold were allocated from the account of Quantum Industrial Partners, LDC and 20.89% of the Shares were allocated from the account of SFM Domestic Investments LLC. For all of these transactions an aggregate of 307,506 Shares were sold by QIP and 81,198 Shares were sold by SFM Domestic Investments.