Attached files

file filename
EX-31.1 - EX-31.1 - CATALYST BIOSCIENCES, INC.cbio-ex311_710.htm
EX-23.1 - EX-23.1 - CATALYST BIOSCIENCES, INC.cbio-ex231_7.htm
EX-10.20 - EX-10.20 - CATALYST BIOSCIENCES, INC.cbio-ex1020_631.htm
EX-10.18 - EX-10.18 - CATALYST BIOSCIENCES, INC.cbio-ex1018_773.htm
EX-10.17 - EX-10.17 - CATALYST BIOSCIENCES, INC.cbio-ex1017_708.htm
EX-4.1 - EX-4.1 - CATALYST BIOSCIENCES, INC.cbio-ex41_709.htm
10-K - 10-K - CATALYST BIOSCIENCES, INC.cbio-10k_20191231.htm

 


Exhibit 32.1

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 Annual Report on Form 10-K of Catalyst Biosciences, Inc. (the “Company”) for the year ended December 31, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nassim Usman, President and Chief Executive Officer (Principal Executive and Financial Officer) of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to 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: February 20, 2020

 

 

/s/ Nassim Usman, Ph.D.

Nassim Usman, Ph.D.

President and Chief Executive Officer

(Principal Executive and Financial Officer)