GTX, INC.
 

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. )*

GTx, Inc.


(Name of Issuer)

Common Stock, $0.001 par value


(Title of Class of Securities)

40052B108


(CUSIP Number)

December 31, 2004


(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

        o Rule 13d-1 (b)

        o Rule 13d-1 (c)

        þ Rule 13d-1 (d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the notes).

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.

 


 

             
13G
CUSIP No. 40052B108 Page 2 of 5

  1. Name of Reporting Person:
Mitchell S. Steiner, M.D., F.A.C.S.
I.R.S. Identification Nos. of above persons (entities only):

  2. Check the Appropriate Box if a Member of a Group:
    (a) o  
    (b) o  

  3. SEC Use Only:

  4. Citizenship or Place of Organization:
United States of America

Number of
Shares
Beneficially
Owned by
Each Reporting
Person With
5. Sole Voting Power:
0

6. Shared Voting Power:
5,662,147

7. Sole Dispositive Power:
0

8.Shared Dispositive Power:
5,662,147

  9.Aggregate Amount Beneficially Owned by Each Reporting Person:
5,662,147

  10.Check if the Aggregate Amount in Row (9) Excludes Certain Shares:
o

  11.Percent of Class Represented by Amount in Row (9):
23.0%

  12.Type of Reporting Person:
IN


 

CUSIP NO. 40052B108

 
13G

Page 3 of 5 Pages



         
Item 1(a).
  Name of Issuer:   GTx, Inc.
 
       
Item 1(b).
  Address of Issuer’s   3 N. Dunlap Street
  Principal Executive   Van Vleet Building
  Offices:   Memphis, TN 38163
 
       
Item 2(a).
  Name of Person Filing:   Mitchell S. Steiner, M.D., F.A.C.S.
 
       
Item 2(b).
  Address of Principal   3 N. Dunlap Street
  Business Office or, if none, Residence:   Memphis, TN 38163
 
       
Item 2(c).
  Organization/Citizenship:   United States of America
 
  Title of Class    
Item 2(d).
  Of Securities:   Common Stock, $0.001 par value
 
       
Item 2(e).
  CUSIP Number:   40052B108
 
       
Item 3.
  Inapplicable.    
 
       
Item 4.
  Ownership.    
                                                 
    Total Shares                                      
    of                                      
    Common                             Sole     Shared  
    Stock     Percent     Sole     Shared     Power     Power  
    Beneficially     of     Voting     Voting     to     to  
Person   Owned     Class(1)     Power     Power     Dispose     Dispose  
Mitchell S. Steiner, M.D., F.A.C.S.
    5,662,147       23.0 %     0       5,662,147       0       5,662,147  


(1)   Based on 24,664,716 shares of Common Stock outstanding as of February 28, 2005.

 


 

CUSIP NO. 40052B108

 
13G

Page 4 of 5 Pages



     
Item 5.
  Ownership of Five Percent or Less of a Class.
 
   
       Inapplicable
 
   
Item 6.
  Ownership of More than Five Percent on Behalf of Another Person.
 
   
       Inapplicable
 
   
Item 7.
  Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.
 
   
       Inapplicable
 
   
Item 8.
  Identification and Classification of Members of the Group.
 
       Inapplicable
 
   
Item 9.
  Notice of Dissolution of Group.
 
   
       Inapplicable
 
   
Item 10.
  Certification.
 
   
       By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

 


 

CUSIP NO. 40052B108

 
13G

Page 5 of 5 Pages



SIGNATURE

      After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
 
  4/8/05
   
  Date
 
   
  /s/ Mitchell S. Steiner, M.D.
   
  (Signature)
 
   
 
   
  Mitchell S. Steiner, M.D., F.A.C.S.
 
   
  Chief Executive Officer and Vice Chairman of the Board of Directors of GTx, Inc.