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 * LABORATORY CORP OF AMERICA HOLDINGS   2. Issuer Name and Ticker or Trading Symbol ORCHID CELLMARK INC [ORCH] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 358 S MAIN ST 3. Date of Earliest Transaction (Month/Day/Year) 12/15/2011 (Street) BURLINGTON, NC 27215 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, par value $.001 12/15/2011   P(2)   51,937 A $ 2.8 26,182,896 I See footnote (1) Common Stock, par value $.001 12/15/2011   P(3)   8,273,065 A $ 2.8 34,455,961 I See footnote (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LABORATORY CORP OF AMERICA HOLDINGS 358 S MAIN ST BURLINGTON, NC 27215		X

Signatures

/s/ F. Samuel Eberts III, Senior Vice President and Chief Legal Officer of Laboratory Corporation of America Holdings		12/16/2011
**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)	The Reporting Person is filing this Form 4 on behalf of itself and OCM Acquisition Corp. ("OCM"), a Delaware corporation and a wholly owned subsidiary of the reporting person.
(2)	These shares were acquired by OCM during the subsequent offering period of the tender offer for all outstanding shares of common stock of the Issuer, including, to the extent outstanding, the associated preferred stock purchase rights issued under the Rights Agreement, dated July 27, 2001, as amended, between the Issuer and American Stock Transfer & Trust Company, as rights agent (the "Offer"). The Offer was made upon the terms and subject to the conditions set forth in the Offer to Purchase, dated April 19, 2011, which was annexed to and filed with the Schedule TO filed by the Reporting Person with the Securities and Exchange Commission on April 19, 2011.
(3)	These shares were acquired by OCM pursuant to the exercise of the Top-Up Option set forth in the Agreement and Plan of Merger, dated April 5, 2011, as amended, among the Reporting Person, OCM and the Issuer.

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