EcoR1 Capital, LLC

Q2 2015 13F Holdings Report, Options Holdings

Notable people
Oleg Nodelman
Signature - Title
Oleg Nodelman - Manager
Location
San Francisco, CA
Options holdings as of
June 30, 2015
Notional value $
$16.3M
Number of holdings
4
Date filed
8/14/2015, 10:30 AM
Description
All US holdings of this investor are reported in this report.
Previous filing
Q1 2015 - May 18, 2015
Stock holdings
Showing options holdings, see here for stock holdings
Sym Company Class Option Share Change Activity * Price $ Shares Notional Value
Filing 2015 Q2 compared to 2015 Q1 - Restatement by default.
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Sarah Marriott Chief Compliance Officer San Francisco, California 8/13/2015