Exhibit 99.1 

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the Common Stock, $0.0001 par value, of Shutterfly, Inc., a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: April 29, 2019

Okumus Opportunistic Value Fund, Ltd.
By:	/s/ Ahmet H. Okumus
	Name:	Ahmet H. Okumus
	Title:	Director

Okumus Fund Management Ltd.
By:	/s/ Ahmet H. Okumus
	Name:	Ahmet H. Okumus
	Title:	President

/s/ Ahmet H. Okumus

Ahmet H. Okumus