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 *
Bartels Ursula B
   2. Issuer Name and Ticker or Trading Symbol
MEDAREX INC [MEDX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Sr. V.P., Gen. Counsel & Sec.
(Last)
(First)
(Middle)
C/O MEDAREX, INC., 521 COTTONWOOD DR.		 3. Date of Earliest Transaction (Month/Day/Year)
03/05/2009
(Street)

MILPITAS, CA 95035		 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

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
Stock Option (Right to Buy) $ 3.72 03/05/2009   A   93,600     (1) 03/04/2019 Common Stock 93,600 $ 0 93,600 D  
Restricted Stock Units (2) 03/05/2009   A   31,200     (3)   (3) Common Stock 31,200 $ 0 31,200 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Bartels Ursula B
C/O MEDAREX, INC.
521 COTTONWOOD DR.
MILPITAS, CA 95035		       Sr. V.P., Gen. Counsel & Sec.  

Signatures

 Ursula B. Bartels   03/09/2009
**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) One quarter (1/4) of the shares vest on each of the one-year, two-year, three year and four-year anniversaries of the grant date.
(2) Each restricted stock unit represents a contingent right to receive one share of Medarex, Inc. common stock.
(3) The restricted stock units vest in accordance with the following schedule, provided that (i) vesting shall cease upon termination of a participant's service and (ii) the award shall become fully and immediately vested upon a Change in Control as defined in the Medarex 2005 Equity Incentive Plan: One-fourth (1/4th) of the shares subject to the award shall vest on the date that is thirteen (13) months after the date of the grant, and one-fourth (1/4th) of the shares subject to the award shall vest on the second, third and fourth anniversaries of the date of grant. An election to defer delivery of the shares is permitted.

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