13G Filing: EcoR1 Capital and Kura Oncology Inc (KURA)

Page 2 of 8 – SEC Filing

1. Names of Reporting Persons.

EcoR1 Capital, LLC
2. Check the Appropriate Box if a Member of a Group (See Instructions)

(a) XX __

(b) ______

3. SEC Use Only

4. Citizenship or Place of Organization Delaware

Number of

Shares

Beneficially

Owned by

Each Reporting

Person With:

5. Sole Voting Power -0-

6. Shared Voting Power 3,766,852

7. Sole Dispositive Power -0-
8. Shared Dispositive Power 3,766,852
9. Aggregate Amount Beneficially Owned by Each Reporting Person 3,766,852
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
Instructions) ______
11. Percent of Class Represented by Amount in Row (9) 13.6%
12. Type of Reporting Person (See Instructions) OO
2

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