The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ASSEMBLY BIOSCIENCES COM 045396108 20,841 1,574,107 SH   SOLE   1,574,107 0 0
ATARA BIOTHERAPEUTICS COM 046513107 44,197 1,063,189 SH   SOLE   1,063,189 0 0
CALITHERA BIOSCIENCES COM 13089P101 4,852 295,480 SH   SOLE   295,480 0 0
CLOVIS ONCOLOGY COM 189464100 18,041 243,048 SH   SOLE   243,048 0 0
EPIZYME COM 29428V104 29,680 1,580,400 SH   SOLE   1,580,400 0 0
FIBROGEN COM 31572Q808 12,552 400,000 SH   SOLE   400,000 0 0
FLEX PHARMA COM 33938A105 15,792 805,691 SH   SOLE   805,691 0 0
FLEXION THERAPEUTICS COM 33938J106 3,669 162,900 SH   SOLE   162,900 0 0
FORWARD PHARMA A/S SPONSORED ADR SPONSORED ADR 34986J105 4,502 158,985 SH   SOLE   158,985 0 0
GENVEC COM 37246C307 5,860 1,986,413 SH   SOLE   1,986,413 0 0
IRONWOOD PHARMACEUTICALS CL A COM CL A 46333X108 14,400 900,000 SH   SOLE   900,000 0 0
KINDRED BIOSCIENCES COM 494577109 9,242 1,294,431 SH   SOLE   1,294,431 0 0
KITE PHARMA COM 49803L109 16,231 281,400 SH   SOLE   281,400 0 0
RECEPTOS COM 756207106 24,948 151,301 SH   SOLE   151,301 0 0
RETROPHIN COM 761299106 9,824 410,000 SH   SOLE   410,000 0 0
SAGE THERAPEUTICS INC COM 78667J108 5,649 112,455 SH   SOLE   112,455 0 0
TARGACEPT COM 87611R306 1,841 619,699 SH   SOLE   619,699 0 0
XENON PHARMACEUTICALS COM 98420N105 3,720 220,570 SH   SOLE   220,570 0 0
ARRAY BIOPHARMA SR CONV NT 3.000% Due 06/01/2020 NOTE 04269XAA3 21,973 17,500,000 PRN   SOLE   17,500,000 0 0
ARRAY BIOPHARMA COM 04269X105 1,548 2,100 SH Call SOLE   2,100 0 0
ARRAY BIOPHARMA COM 04269X105 3,869 5,250 SH Call SOLE   5,250 0 0
CLOVIS ONCOLOGY COM 189464950 18,558 2,500 SH Put SOLE   2,500 0 0
EPIZYME COM 29428V904 282 150 SH Call SOLE   150 0 0
IRONWOOD PHARMACEUTICALS CL A COM CL A 46333X108 8,000 5,000 SH Call SOLE   5,000 0 0