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 *
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)
President and CEO
(Last)
(First)
(Middle)
311 C ENTERPRISE DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
12/14/2004
(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

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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
Variable Forward Sale Contract (1) (2) 12/14/2004   J(1)(2)   1 (1) (2)     (2) 03/28/2013 Common Stock 500,000 (1) (2) 1 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ESSIG STUART
311 C ENTERPRISE DRIVE
PLAINSBORO, NJ 08536		   X     President and CEO  

Signatures

 /s/ Stuart M. Essig   12/16/2004
**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) On December 14, 2004, Stuart M. Essig, the President and Chief Executive Officer of Integra LifeSciences Holdings Corporation (the "Company"), entered into a variable forward sale contract (the "Forward Sale Contract") with Credit Suisse First Boston Capital LLC ("CSFB") for 500,000 shares of the Company's common stock. Pursuant to the terms of the Forward Sale Contract, CSFB will sell up to 500,000 shares of the Company's common stock into the public market in accordance with paragraphs (f) and (g) of Rule 144 under the Securities Act of 1933, as amended.
(2) The terms of the Forward Sale Contract provide that on March 28, 2013 (the "Settlement Date"), Mr. Essig will deliver between 264,550 and 500,000 shares of the Company's common stock (or, at the election of Mr. Essig, the cash equivalent of such shares) to CSFB. The number of shares (or the cash equivalent of such shares) that Mr. Essig will be required to deliver to CSFB will depend upon the average price of the Company's common stock for the 20 trading days prior to and including the Settlement Date.

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