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
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

ESSIG STUART 		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)
Exec. Chairman of the Board
(Last)          (First)          (Middle)

311 C ENTERPRISE DRIVE 		3. Date of Earliest Transaction (MM/DD/YYYY)

2/21/2012
(Street)

PLAINSBORO, NJ 08536
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   2/21/2012     M    1585   A $ 0   641897   D    
Common Stock   2/21/2012     F    1585   D $30.86   640312   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Restricted Stock Units (contract stock)   $ 0   (1) 2/21/2012     A      75000         (1)   (1) Common Stock   75000   $ 0   917583   D    
Restricted Stock Units (contract stock)   $ 0   (1) 2/21/2012     M         1585      (1)   (1) Common Stock   1585   $ 0   915998   D    

Explanation of Responses:
( 1)  The Units vest 100% on the grant date which is 02/21/2012. The award was a contract stock unit award providing for a payment of 75,000 shares of Integra Common Stock which shall be delivered to Mr. Essig within 3 business days following the first business day that occurs immediately following the six month period after the date of his separation of service.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
ESSIG STUART
311 C ENTERPRISE DRIVE
PLAINSBORO, NJ 08536 		X
Exec. Chairman of the Board

Signatures
/s/ Kathryn Lamping; Attorney-in-Fact 2/23/2012
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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