Instuitional Investor - Clarus Ventures, Llc

13F Holdings

Filing Period:

No.	Security	Ticker	Shares	Value	% Port
1.	Avrobio Inc.	AVRO	246,860.41,666,667	$153,656,000	36.11%
2.	Nanostring Technologies Inc	NSTG	4,036,025	$71,962,000	16.91%
3.	Sientra Inc.	SIEN	273,076.5	$65,211,000	15.32%
4.	Forty Seven Inc.	FTSV	3,816,951	$56,949,000	13.38%
5.	Gritstone Oncology Inc.	GRTS	2,567,445	$36,560,000	8.59%