Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Arduini Peter J
   2. Issuer Name and Ticker or Trading Symbol
INTEGRA LIFESCIENCES HOLDINGS CORP [IART] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President & CEO
(Last)
(First)
(Middle)
311 C ENTERPRISE DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
03/25/2015
(Street)

PLAINSBORO, NJ 08536		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/25/2015   M   105 A $ 0 17,714 D  
Common Stock 03/25/2015   F   105 D $ 61.58 17,609 D  
Common Stock 03/25/2015   M   259 D $ 0 17,868 D  
Common Stock 03/25/2015   F   259 D $ 61.58 17,609 D  
Common Stock 03/25/2015   F   1,302 D $ 61.58 16,307 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Performance Stock $ 0 (1) 03/25/2015   M     259   (1)   (1) Common Stock 259 $ 61.58 6,047 D  
Restricted Stock Units/Contract Stock $ 0 (2) 03/25/2015   M     105   (2)   (2) Common Stock 105 $ 61.58 209,821 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Arduini Peter J
311 C ENTERPRISE DRIVE
PLAINSBORO, NJ 08536		   X     President & CEO  

Signatures

 /s/ Richard D.elick; Attorney-in-Fact   03/26/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This is a performance stock award granted March 25, 2013 which will vest, if certain performance goals are met, 33% on the first and second anniversaries of the grant date and 34% on the third anniversary of the grant date of which the second installment with respect to the 2014 performance period met the performance goal and vested on March 25, 2015 and such performance stock award will be distributed to Mr. Arduini within 30 days following the first business day that occurs immediately following the six month period after the date of his separation of service as deferred compensation. This performance stock award is subject to accelerated vesting upon termination of employment by reason of death, disability, without cause, or termination by Mr. Arduini for good reason.
(2) The award was a contract stock unit award which will vest in three annual equal installments on the first, second and third anniversaries of the grant date of 03/25/2013 of which the second installment has vested on March 25, 2015 and will be distributed to Mr. Arduini within 30 days following the first business day that occurs immediately following the six month period after the date of his separation of service as deferred compensation. This award is subject to accelerated vesting upon termination of employment by reason of death or disability or upon a qualifying termination on or within 24 months following the date of a change in control.

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