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Item 1(a).
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Name of Issuer:
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Catalyst Biosciences, Inc., a Delaware corporation (the “Issuer”).
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Item 1(b).
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Address of Issuer's Principal Executive Offices:
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260 Littlefield Ave.
South San Francisco, California 94080
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Item 2(a).
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Name of Person Filing
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Item 2(b).
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Address of Principal Business Office or, if None, Residence
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Biotechnology Value Fund, L.P. (“BVF”)
1 Sansome Street, 30
th
Floor
San Francisco, California 94104
Citizenship: Delaware
Biotechnology Value Fund II, L.P. (“BVF2”)
1 Sansome Street, 30
th
Floor
San Francisco, California 94104
Citizenship: Delaware
Biotechnology Value Trading Fund OS LP (“Trading Fund OS”)
PO Box 309 Ugland House
Grand Cayman, KY1-1104
Cayman Islands
Citizenship: Cayman Islands
BVF Partners OS Ltd. (“Partners OS”)
PO Box 309 Ugland House
Grand Cayman, KY1-1104
Cayman Islands
Citizenship: Cayman Islands
BVF Partners L.P. (“Partners”)
1 Sansome Street, 30th Floor
San Francisco, California 94104
Citizenship: Delaware
BVF Inc.
1 Sansome Street, 30
th
Floor
San Francisco, California 94104
Citizenship: Delaware
Mark N. Lampert (“Mr. Lampert”)
1 Sansome Street, 30
th
Floor
San Francisco, California 94104
Citizenship: United States
Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.”
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Item 2(d).
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Title of Class of Securities:
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Common Stock, par value $0.001 per share (the “Common Stock”)
14888D 10 9
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Item 3.
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If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:
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(a)
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Broker or dealer registered under Section 15 of the Exchange Act.
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(b)
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Bank as defined in Section 3(a)(6) of the Exchange Act.
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(c)
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Insurance company as defined in Section 3(a)(19) of the Exchange Act.
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(d)
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Investment company registered under Section 8 of the Investment Company Act.
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(e)
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An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
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(f)
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An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).
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(g)
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A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).
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(h)
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A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act.
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(i)
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A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act.
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(j)
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Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
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(k)
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Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J), please specify the type of institution: ____
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(a)
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Amount beneficially owned:
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As of the close of business on December 31, 2016, the Reporting Persons do not beneficially own any securities of the Issuer.
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As of the close of business on December 31, 2016, the Reporting Persons do not beneficially own any securities of the Issuer.
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(c)
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Number of shares as to which such person has:
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(i)
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Sole power to vote or to direct the vote
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See Cover Pages Items 5-9.
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(ii)
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Shared power to vote or to direct the vote
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See Cover Pages Items 5-9.
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(iii)
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Sole power to dispose or to direct the disposition of
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See Cover Pages Items 5-9.
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(iv)
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Shared power to dispose or to direct the disposition of
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See Cover Pages Items 5-9.
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Item 5.
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Ownership of Five Percent or Less of a Class.
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If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].
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Item 6.
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Ownership of More than Five Percent on Behalf of Another Person.
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Not Applicable.
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Item 7.
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Identification and Classification of the Subsidiary That Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
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Not Applicable.
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Item 8.
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Identification and Classification of Members of the Group.
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See Exhibit 99.1 to Amendment No. 1 to the Schedule 13G filed with the Securities and Exchange Commission on February 16, 2016.
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Item 9.
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Notice of Dissolution of Group.
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Not Applicable.
By signing below each of the undersigned certifies that, to the best of its 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.
SIGNATURE
After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.
Dated: February 14, 2017
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BIOTECHNOLOGY VALUE FUND, L.P.
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BVF INC.
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By:
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BVF Partners L.P., its general partner
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By:
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BVF Inc., its general partner
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By:
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Mark N. Lampert
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By:
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President
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Mark N. Lampert
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President
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MARK N. LAMPERT
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BIOTECHNOLOGY VALUE FUND II, L.P.
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By:
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BVF Partners L.P., its general partner
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By:
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BVF Inc., its general partner
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By:
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Mark N. Lampert
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President
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BVF PARTNERS L.P.
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By:
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BVF Inc., its general partner
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By:
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Mark N. Lampert
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President
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BVF PARTNERS OS LTD.
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By:
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BVF Partners L.P., its sole member
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By:
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BVF Inc., its general partner
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By:
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Mark N. Lampert
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President
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BIOTECHNOLOGY VALUE TRADING FUND OS LP
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By:
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BVF Partners L.P., its investment manager
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By:
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BVF Inc., its general partner
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By:
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Mark N. Lampert
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President
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