Attached files

file filename
EX-31.2 - EXHIBIT 31.2 - Oncternal Therapeutics, Inc.c92001exv31w2.htm
EX-31.1 - EXHIBIT 31.1 - Oncternal Therapeutics, Inc.c92001exv31w1.htm
EX-12.1 - EXHIBIT 12.1 - Oncternal Therapeutics, Inc.c92001exv12w1.htm
EX-32.1 - EXHIBIT 32.1 - Oncternal Therapeutics, Inc.c92001exv32w1.htm
10-Q - FORM 10-Q - Oncternal Therapeutics, Inc.c92001e10vq.htm
EXHIBIT 32.2
CERTIFICATION PURSUANT TO
18 U. S. C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report of GTx, Inc. (the “Company”) on Form 10-Q for the three months ended September 30, 2009, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark E. Mosteller, Chief Financial Officer of the Company certify, pursuant to Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:
1.   The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
Date: November 9, 2009
     
/s/ Mark E. Mosteller
 
Mark E. Mosteller, CPA
   
Vice President and Chief Financial Officer
   
This certification accompanies the Form 10-Q to which it relates, is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934 (whether made before or after the date of the Form 10-Q), irrespective of any general incorporation language contained in such filing.