13G Filing: Sio Capital and Catalyst Biosciences Inc. (CBIO)

Page 3 of 6 – SEC Filing

CUSIP No. 14888D208
Page 3 of 6
Schedule 13G
Item 1(a).
Name of Issuer:
CATALYST BIOSCIENCES, INC
Item 1(b).
Address of Issuer’s Principal Executive Offices:
260 Littlefield Avenue
South San Francisco, California 94080
Item 2(a).
Name of Persons Filing:
This Statement is filed on behalf of Sio Capital Management, LLC (the “Reporting Person” or “Sio”)
Sio is a registered investment adviser to certain affiliated funds that directly hold the shares of Common Stock to which this statement relates for the benefit of their respective investors, and in such capacity Sio has voting and dispositive power over such shares.
Item 2(b).
Address of Principal Business Office:
535 Fifth Avenue, Suite 910
New York, New York 10017
Item 2(c).
Citizenship:
Sio is a Delaware limited liability company.
Item 2(d).
Title of Class of Securities:
common stock, par value $0.001 per share
Item 2(e).
CUSIP Number:
14888D208

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