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 *
PERCEPTIVE ADVISORS LLC
   2. Issuer Name and Ticker or Trading Symbol
REPROS THERAPEUTICS INC. [RPRX] 		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)
499 PARK AVENUE, 25TH FLOOR		 3. Date of Earliest Transaction (Month/Day/Year)
02/06/2013
(Street)

NEW YORK, NY 10022		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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
Call option (obligation to sell) $ 12.5 02/06/2013   S     2,000   (3) 03/16/2013 Common Stock 200,000 $ 0.55 50,000 I See Footnotes (1) (2) (3)
Put option (right to sell) $ 12.5 02/06/2013   P   4,000     (3) 03/16/2013 Common Stock 400,000 $ 1.65 54,000 I See Footnotes (1) (2) (3)
Call option (obligation to sell) $ 12.5 02/07/2013   S     1,500   (3) 03/16/2013 Common Stock 150,000 $ 0.27 55,500 I See Footnotes (1) (2) (3)
Put option (right to sell) $ 12.5 02/07/2013   P   1,500     (3) 03/16/2013 Common Stock 150,000 $ 2.33 57,000 I See Footnotes (1) (2) (3)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
PERCEPTIVE ADVISORS LLC
499 PARK AVENUE
25TH FLOOR
NEW YORK, NY 10022		     X    
EDELMAN JOSEPH
PERCEPTIVE ADVISORS LLC
499 PARK AVENUE, 25TH FLOOR
NEW YORK, NY 10022		     X    
PERCEPTIVE LIFE SCIENCES MASTER FUND LTD
C/O PERCEPTIVE ADVISORS LLC
499 PARK AVENUE, 25TH FLOOR
NEW YORK, NY 10022		     X    

Signatures

 /s/ Joseph Edelman, managing member of Perceptive Advisors LLC   02/08/2013
**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 Form 4 is being filed by Perceptive Life Sciences Master Fund Ltd. (the "Master Fund"), Perceptive Advisors LLC (the "Advisor") and Joseph Edelman. The Advisor serves as investment manager to the Master Fund. Mr. Edelman is the managing member of the Advisor.
(2) This amount reflects the total amount of derivative securities held by the Master Fund immediately following the transactions requiring the filing of this statement. In accordance with Instruction 5(b)(iv) of Form 4, the entire amount of the Issuer's derivative securities held by the Master Fund is reported herein. Each of Mr. Edelman and the Advisor disclaims, for purposes of Section 16 of the Securities Exchange Act of 1934, beneficial ownership of such securities, except to the extent of his/its indirect pecuniary interest therein, and this report shall not be deemed an admission that Mr. Edelman or the Advisor is the beneficial owner of such securities for purposes of Section 16 or for any other purposes.
(3) The options reflected in this Form 4 are out-of-the money options.

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