The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete. | |||||||||||||||||
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 13F FORM 13F INFORMATION TABLE |
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| 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 INC | COM | 045396908 | 5,500 | 148,100 | SH | Call | SOLE | 148,100 | 0 | 0 | |
| ASCENDIS PHARMA A S | COM | 04351P901 | 18,211 | 257,000 | SH | Call | SOLE | 257,000 | 0 | 0 | |
| CELGENE CORPORATION | COM | 151020904 | 17,898 | 200,000 | SH | Call | SOLE | 200,000 | 0 | 0 | |
| FIBROGEN INC | COM | 31572Q908 | 21,263 | 350,000 | SH | Call | SOLE | 350,000 | 0 | 0 | |
| GILEAD SCIENCES INC | COM | 375558903 | 22,592 | 292,600 | SH | Call | SOLE | 292,600 | 0 | 0 | |
| IRONWOOD PHARMACEUTICALS INC | COM | 46333X908 | 1,661 | 90,000 | SH | Call | SOLE | 90,000 | 0 | 0 | |
| IRONWOOD PHARMACEUTICALS INC | COM | 46333X908 | 8,816 | 477,600 | SH | Call | SOLE | 477,600 | 0 | 0 | |
| JOUNCE THERAPEUTICS INC | COM | 481116901 | 3,233 | 497,400 | SH | Call | SOLE | 497,400 | 0 | 0 | |
| NEKTAR THERAPEUTICS | COM | 640268908 | 19,812 | 325,000 | SH | Call | SOLE | 325,000 | 0 | 0 | |
| ULTRAGENYX PHARMACEUTICAL | COM | 90400D908 | 24,811 | 325,000 | SH | Call | SOLE | 325,000 | 0 | 0 | |
| ARBUTUS BIOPHARMA CORP | COM | 03879J100 | 11,641 | 1,231,800 | SH | SOLE | 1,231,800 | 0 | 0 | ||
| ACHILLION PHARMACEUTICALS | COM | 00448Q201 | 5,756 | 1,564,080 | SH | SOLE | 1,564,080 | 0 | 0 | ||
| AKCEA THERAPEUTICS INC | COM | 00972L107 | 26,444 | 755,120 | SH | SOLE | 755,120 | 0 | 0 | ||
| APTINYX INC | COM | 03836N103 | 1,188 | 41,037 | SH | SOLE | 41,037 | 0 | 0 | ||
| AQUINOX PHARMACEUTICALS INC | COM | 03842B101 | 6,639 | 2,265,880 | SH | SOLE | 2,265,880 | 0 | 0 | ||
| ARVINAS INC | COM | 04335A105 | 844 | 50,000 | SH | SOLE | 50,000 | 0 | 0 | ||
| ASSEMBLY BIOSCIENCES INC | COM | 045396108 | 109,309 | 2,943,164 | SH | SOLE | 2,943,164 | 0 | 0 | ||
| AVROBIO INC | COM | 05455M100 | 3,561 | 68,646 | SH | SOLE | 68,646 | 0 | 0 | ||
| CHIASMA INC | COM | 16706W102 | 1,367 | 379,753 | SH | SOLE | 379,753 | 0 | 0 | ||
| CONSTELLATION PHARMACEUTICALS INC | COM | 210373106 | 1,884 | 280,000 | SH | SOLE | 280,000 | 0 | 0 | ||
| CRISPR THERAPEUTICS AG | COM | H17182108 | 22,175 | 500,000 | SH | SOLE | 500,000 | 0 | 0 | ||
| CORVUS PHARMACEUTICALS INC | COM | 221015100 | 3,015 | 351,401 | SH | SOLE | 351,401 | 0 | 0 | ||
| DICERNA PHARMACEUTICALS INC | COM | 253031108 | 58,024 | 3,802,327 | SH | SOLE | 3,802,327 | 0 | 0 | ||
| EIGER BIOPHARMACEUTICALS INC | COM | 28249U105 | 12,474 | 1,039,500 | SH | SOLE | 1,039,500 | 0 | 0 | ||
| ELANCO ANIMAL HEALTH INC | COM | 28414H103 | 6,629 | 190,000 | SH | SOLE | 190,000 | 0 | 0 | ||
| FIBROGEN INC | COM | 31572Q808 | 122,548 | 2,017,250 | SH | SOLE | 2,017,250 | 0 | 0 | ||
| FORTY SEVEN INC | COM | 34983P104 | 1,477 | 99,000 | SH | SOLE | 99,000 | 0 | 0 | ||
| IMMUNE DESIGN CORP | COM | 45252L103 | 7,735 | 2,241,900 | SH | SOLE | 2,241,900 | 0 | 0 | ||
| INFINITY PHARMACEUTICALS INC | COM | 45665G303 | 1,252 | 462,068 | SH | SOLE | 462,068 | 0 | 0 | ||
| IONIS PHARMACEUTICALS INC | COM | 462222100 | 3,731 | 72,326 | SH | SOLE | 72,326 | 0 | 0 | ||
| IRONWOOD PHARMACEUTICALS INC | COM | 46333X108 | 94,914 | 5,141,624 | SH | SOLE | 5,141,624 | 0 | 0 | ||
| KADMON HOLDINGS INC | COM | 48283N106 | 4,946 | 1,480,870 | SH | SOLE | 1,480,870 | 0 | 0 | ||
| KURA ONCOLOGY INC | COM | 50127T109 | 68,302 | 3,902,975 | SH | SOLE | 3,902,975 | 0 | 0 | ||
| KEZAR LIFE SCIENCES INC | COM | 49372L100 | 27,580 | 1,288,198 | SH | SOLE | 1,288,198 | 0 | 0 | ||
| MACROGENICS INC | COM | 556099109 | 31,754 | 1,481,086 | SH | SOLE | 1,481,086 | 0 | 0 | ||
| MAGENTA THERAPEUTICS INC | COM | 55910K108 | 18,472 | 1,538,088 | SH | SOLE | 1,538,088 | 0 | 0 | ||
| MERSANA THERAPEUTICS INC | COM | 59045L106 | 4,956 | 495,618 | SH | SOLE | 495,618 | 0 | 0 | ||
| SPARK THERAPEUTICS INC | COM | 84652J103 | 45,661 | 837,048 | SH | SOLE | 837,048 | 0 | 0 | ||
| ONCONOVA THERAPEUTICS INC | COM | 68232V405 | 3,670 | 500,000 | SH | SOLE | 500,000 | 0 | 0 | ||
| ULTRAGENYX PHARMACEUTICAL INC | COM | 90400D108 | 19,390 | 254,000 | SH | SOLE | 254,000 | 0 | 0 | ||
| ARCUS BIOSCIENCES INC | COM | 03969F109 | 31,175 | 2,236,387 | SH | SOLE | 2,236,387 | 0 | 0 | ||
| RUBIUS THERAPEUTICS INC | COM | 78116T103 | 14,211 | 592,128 | SH | SOLE | 592,128 | 0 | 0 | ||
| SANGAMO THERAPEUTICS INC | COM | 800677106 | 5,818 | 343,231 | SH | SOLE | 343,231 | 0 | 0 | ||
| SPERO THERAPEUTICS INC | COM | 84833T103 | 9,383 | 892,741 | SH | SOLE | 892,741 | 0 | 0 | ||
| SCHOLAR ROCK HOLDING CORP | COM | 80706P103 | 60,960 | 2,367,378 | SH | SOLE | 2,367,378 | 0 | 0 | ||
| SURFACE ONCOLOGY INC | COM | 86877M209 | 14,916 | 1,363,479 | SH | SOLE | 1,363,479 | 0 | 0 | ||
| UNITY BIOTECHNOLOGY INC. | COM | 91381U101 | 15,754 | 967,114 | SH | SOLE | 967,114 | 0 | 0 | ||
| WAVE LIFE SCIENCES LTD | COM | Y95308105 | 2,242 | 44,841 | SH | SOLE | 44,841 | 0 | 0 | ||
| ZAI LAB LTD | SPONSORED ADR | 98887Q104 | 6,818 | 350,000 | SH | SOLE | 350,000 | 0 | 0 | ||
| ASCENDIS PHARMA A S | SPONSORED ADR | 04351P101 | 77,043 | 1,087,257 | SH | SOLE | 1,087,257 | 0 | 0 | ||
| ERYTECH PHARMA | SPONSORED ADR | 29604W108 | 590 | 69,569 | SH | SOLE | 69,569 | 0 | 0 | ||