XML 6 R1.htm IDEA: XBRL DOCUMENT v3.22.1
Document and Entity Information
May 19, 2022
Cover [Abstract]  
Amendment Flag true
Entity Central Index Key 0001124105
Document Type 8-K/A
Document Period End Date May 19, 2022
Entity Registrant Name CATALYST BIOSCIENCES, INC.
Entity Incorporation State Country Code DE
Entity File Number 000-51173
Entity Tax Identification Number 56-2020050
Entity Address, Address Line One 611 Gateway Blvd
Entity Address, Address Line Two Suite 710
Entity Address, City or Town South San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94080
City Area Code (650)
Local Phone Number 871-0761
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock
Trading Symbol CBIO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Description This Amendment No. 1 to the Original Form 8-K amends and supplements the Original Form 8-K solely to amend and restate Item 9.01 to the Original Form 8-K to file the pro forma financial information as Exhibit 99.2, to add Exhibit 99.2 to the exhibit list and to include a hyperlink to such Exhibit 99.2. Such pro forma financial information was inadvertently included in the Original Form 8-K as part of Exhibit 99.1 thereto.