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

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 10)*

                   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)

                                January 13, 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 16 Pages




CUSIP No. 457985208                                           Page 2 of 16 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                       1,380,687
  Shares
Beneficially         8     Shared Voting Power
  Owned By                        0
   Each
 Reporting           9     Sole Dispositive Power
  Person                          1,380,687
   With
                     10    Shared Dispositive Power
                                0

11   Aggregate Amount Beneficially Owned by Each Reporting Person

                           1,380,687

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)

                           4.9%

14   Type of Reporting Person (See Instructions)

                           OO; IV




CUSIP No. 457985208                                           Page 3 of 16 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                       1,380,687
  Shares
Beneficially         8     Shared Voting Power
  Owned By                       0
   Each
 Reporting           9     Sole Dispositive Power
  Person                         1,380,687
   With
                     10    Shared Dispositive Power
                                 0

11   Aggregate Amount Beneficially Owned by Each Reporting Person

                           1,380,687

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)

                           4.9%

14   Type of Reporting Person (See Instructions)

                           PN; IA




CUSIP No. 457985208                                           Page 4 of 16 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                       1,380,687
  Shares
Beneficially         8     Shared Voting Power
  Owned By                       0
   Each
 Reporting           9     Sole Dispositive Power
  Person                         1,380,687
   With
                     10    Shared Dispositive Power
                                 0

11   Aggregate Amount Beneficially Owned by Each Reporting Person

                           1,380,687

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)

                           4.9%

14   Type of Reporting Person (See Instructions)

                           OO


CUSIP No. 457985208                                           Page 5 of 16 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                       1,380,687
  Shares
Beneficially         8     Shared Voting Power
  Owned By                       0
   Each
 Reporting           9     Sole Dispositive Power
  Person                         1,380,687
   With
                     10    Shared Dispositive Power
                                 0

11   Aggregate Amount Beneficially Owned by Each Reporting Person

                           1,380,687

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)

                          4.9%

14   Type of Reporting Person (See Instructions)


                           OO; IA



CUSIP No. 457985208                                           Page 6 of 16 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                       1,745,300
  Shares
Beneficially         8     Shared Voting Power
  Owned By                       0
   Each
 Reporting           9     Sole Dispositive Power
  Person                         1,745,300
   With
                     10    Shared Dispositive Power
                                 0

11   Aggregate Amount Beneficially Owned by Each Reporting Person

                           1,745,300

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)

                           6.2%

14   Type of Reporting Person (See Instructions)

                           IA


CUSIP No. 457985208                                           Page 7 of 16 Pages



          This  Amendment  No. 10 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. 10 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. 10 is being filed by the Reporting Persons to report that the
number of Shares that the Reporting  Persons may be deemed to  beneficially  own
has  decreased  by more than one  percent of the current  amount of  outstanding
Shares,  as  disclosed in the  Issuer's  quarterly  report on Form 10-Q filed on
November 9, 2005.  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.

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 28,050,652
as of November 4, 2005.

          (a)      (i) Each of QIP,  QIHMI,  QIH Management and SFM LLC may be 
deemed the beneficial owner of 1,380,687 Shares (approximately 4.9% of the total
number of Shares outstanding).

                   (ii)  Mr.  Soros  may  be  deemed  the  beneficial  owner  of
1,745,300 Shares (approximately 6.2% of the total number of Shares outstanding).
This number  includes (A)  1,380,687  Shares held for the account of QIP and (B)
364,613 Shares held for the account of SFM Domestic Investments.

          (b)      (i) 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
1,380,687 Shares held for the account of QIP.

                   (ii) 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  364,613  Shares  held for the  account  of SFM
Domestic Investments.



CUSIP No. 457985208                                           Page 8 of 16 Pages



           (c)  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
December 16, 2005 (the date of filing 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) Not applicable.




CUSIP No. 457985208                                           Page 9 of 16 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: January 19, 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 16 Pages


                                     ANNEX A


                    RECENT TRANSACTIONS IN THE SECURITIES OF
                    INTEGRA LIFESCIENCES HOLDINGS CORPORATION



                                   Date of               Nature of      Number of 
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          

-------------------------------------------------------------------------------------------
Quantum Industrial Partners 
LDC/SFM Domestic 
Investments LLC/1/                 December 20, 2005        Sale        24,100       $36.00
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale        38,845       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale         1,015       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale           300       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale           700       $36.03
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale           300       $36.04
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale           500       $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 21, 2005        Sale           100       $36.06
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 22, 2005        Sale        15,803       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 23, 2005        Sale           300       $36.11
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 23, 2005        Sale           500       $36.12
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 23, 2005        Sale           400       $36.14
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 23, 2005        Sale         3,500       $36.20
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale         6,600       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------



CUSIP No. 457985208                                          Page 11 of 16 Pages




                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
Quantum Industrial Partners        December 27, 2005        Sale           911       $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           600       $36.06
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale         2,687       $36.11
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale             3       $36.13
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           400       $36.14
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale         5,793       $36.15
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale         1,100       $36.16
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           200       $36.17
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale         1,553       $36.19
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           100       $36.20
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           553       $36.23
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           500       $36.24
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 27, 2005        Sale           100       $36.26
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale        34,098       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------





CUSIP No. 457985208                                          Page 12 of 16 Pages





                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2995        Sale         1,802       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale           400       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale           600       $36.03
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale        11,500      $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale         1,500       $36.06
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale           100       $36.09
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale         9,600       $36.10
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        December 29, 2005        Sale           400       $36.11
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 11, 2006         Sale         5,000       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 12, 2006         Sale        63,022       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 12, 2006         Sale        11,587       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 12, 2006         Sale         2,702       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 12, 2006         Sale           100       $36.04
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 12, 2006         Sale         2,589       $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------




CUSIP No. 457985208                                          Page 13 of 16 Pages





                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale        18,935       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         1,346       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale           609       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         1,910       $36.03
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         2,200       $36.04
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale           600       $36.06
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale           300       $36.07
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         1,300       $36.08
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale        25,698       $36.10
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         9,883       $36.11
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale        12,154       $36.12
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         6,471       $36.13
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         2,294       $36.14
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         8,000       $36.15
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------




CUSIP No. 457985208                                          Page 14 of 16 Pages





                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale         7,700       $36.16
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 13, 2006         Sale           600       $36.17
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale        23,674       $36.00
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale        13,171       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         1,125       $36.02
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           100       $36.04
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           600       $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           200       $36.07
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           300       $36.08
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale        16,437       $36.10
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         1,003       $36.11
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         3,800       $36.12
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
uantum Industrial Partners        January 17, 2006         Sale         2,040       $36.13
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         2,061       $36.14
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------




CUSIP No. 457985208                                          Page 15 of 16 Pages





                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
-------------------------------------------------------------------------------------------
QQuantum Industrial Partners        January 17, 2006         Sale         2,900       $36.15
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           150       $36.16
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           600       $36.17
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         1,118       $36.20
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           600       $36.21
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         1,000       $36.22
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale         1,039       $36.23
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           500       $36.24
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           200       $36.26
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           885       $36.29
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale            97       $36.30
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           500       $36.31
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 17, 2006         Sale           900       $36.32
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 18, 2006         Sale        75,776       $36.00
LDC/SFM Domestic
Investments LLC /1/
-------------------------------------------------------------------------------------------




CUSIP No. 457985208                                          Page 16 of 16 Pages





                                   Date of               Nature of      Number of  
For the Account of                 Transaction           Transaction    Securities   Price
---------------------------        ------------          ------------   -----------  -----
                                                                          
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 18, 2006         Sale           100       $36.01
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 18, 2006         Sale           100       $36.05
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 18, 2006         Sale            61       $36.06
LDC/SFM Domestic 
Investments LLC /1/
-------------------------------------------------------------------------------------------
Quantum Industrial Partners        January 18, 2006         Sale         1,000       $36.07
LDC/SFM Domestic 
Investments LLC /1/
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Quantum Industrial Partners        January 18, 2006         Sale           100       $36.08
LDC/SFM Domestic 
Investments LLC /1/
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/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 399,190 Shares were sold by QIP and 105,410 Shares
were sold by SFM Domestic Investments.