Casdin Capital, LLC Q2 2016 Filing

Filed August 15, 2016

Portfolio Value

$100.5B

Holdings

25

Report Date

Q2 2016

Filing Type

13F-HR

All Holdings (25 positions)

#StockSharesValue% PortfolioType
1
SG7SAGE THERAPEUTICS INC
293,500$8.8B8.80%Call
2
SPARK THERAPEUTICS INC
162,500$8.3B8.27%
3
AGIOAGIOS PHARMACEUTICALS INC
187,500$7.9B7.82%
4
FOUNDATION MEDICINE INC
390,000$7.3B7.24%
5
GBTUSDGLOBAL BLOOD THERAPEUTICS IN
430,000$7.1B7.10%
6
LOXO ONCOLOGY INC
300,000$7.0B6.92%
7
2L9BLUEPRINT MEDICINES CORP
340,000$6.9B6.85%
8
BLUEBIRD BIO INC
122,500$5.3B5.28%
9
EVHEVOLENT HEALTH INC
239,500$4.6B4.58%
10
ALNYALNYLAM PHARMACEUTICALS INC
72,500$4.0B4.00%
11
KITE PHARMA INC
72,500$3.6B3.61%
12
GENMARK DIAGNOSTICS INC
415,000$3.6B3.59%
13
VYGRVOYAGER THERAPEUTICS INC
322,500$3.5B3.53%
14
EPIZYME INC
340,000$3.5B3.47%
15
CTMXCYTOMX THERAPEUTICS INC
234,179$2.4B2.38%
16
DC4DEXCOM INC
30,000$2.4B2.37%Put
17
MYOKARDIA INC
179,029$2.2B2.21%
18
CLVSEURCLOVIS ONCOLOGY INC
150,000$2.1B2.05%
19
IGNYTA INC
375,000$2.0B2.02%
20
AVEXIS INC
45,000$1.7B1.70%
21
TESARO INC
20,000$1.7B1.67%
22
XBISPDR SERIES TRUST
30,000$1.6B1.61%Put
23
BMYBRISTOL MYERS SQUIBB CO
21,000$1.5B1.54%
24
SYROS PHARMACEUTICALS INC
50,000$908.0M0.90%
25
MEDGENICS INC
85,000$472.0M0.47%