13D Filing: Biotechnology Value Fund LP and CTI Biopharma Corp (CTIC)

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Page 12 of 13 – SEC Filing

SIGNATURES

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: June 13, 2017

BIOTECHNOLOGY VALUE FUND, L.P. BVF INC.
   
By: BVF Partners L.P., its general partner By:

/s/ Mark N. Lampert

By: BVF Inc., its general partner Mark N. Lampert
  President
By:

/s/ Mark N. Lampert

Mark N. Lampert  
President

/s/ Mark N. Lampert

  MARK N. LAMPERT
 
BIOTECHNOLOGY VALUE FUND II, L.P.
 
By: BVF Partners L.P., its general partner
By: BVF Inc., its general partner
 
By:

/s/ Mark N. Lampert

Mark N. Lampert
President
BVF PARTNERS L.P.
By: BVF Inc., its general partner
 
By:

/s/ Mark N. Lampert

Mark N. Lampert
President
BVF PARTNERS OS LTD.
By: BVF Partners L.P., its sole member
By: BVF Inc., its general partner
 
By:

/s/ Mark N. Lampert

Mark N. Lampert
President
Biotechnology Value Trading Fund OS LP
By: BVF Partners L.P., its investment manager
By: BVF Inc., its general partner
 
By:

/s/ Mark N. Lampert

Mark N. Lampert
President

/s/ Matthew D. Perry

MATTHEW D. PERRY
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