HealthCor Management LP Increases Stake In Clovis Oncology, Inc. (CLVS)

NAME OF REPORTING PERSONS

HealthCor Offshore Master Fund, L.P.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                     (see instructions)

(a)
x

(b)
o

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

5.

SOLE VOTING POWER

0

6.

SHARED VOTING POWER

1,371,065

7.

SOLE DISPOSITIVE POWER

0

8.

SHARED DISPOSITIVE POWER

1,371,065

AGGREGATE AMOUNT BENEFICIALLY OWNED
BY EACH REPORTING PERSON

1,371,065

CHECK IF THE AGGREGATE AMOUNT IN ROW
(9) EXCLUDES CERTAIN SHARES
(SEE INSTRUCTIONS)

o

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

3.57%

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

PN