13D Filing: Eastbay Asset Management Buys Shares of Shutterfly Inc (SFLY), Expresses Concern Over Disinterest in a Sale

CUSIP No.

82568P304

1.

NAME OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

EastBay Asset Management, LLC

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)

[_]

(b)

[_]

3.

SEC USE ONLY

4.

SOURCE OF FUNDS

WC

5.

CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)

[_]

6.

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

7.

SOLE VOTING POWER

0

8.

SHARED VOTING POWER

1,896,071

9.

SOLE DISPOSITIVE POWER

0

10.

SHARES DISPOSITIVE POWER

[_]

1,896,071