Joint Filing Agreement PURSUANT TO RULE 13d-1(k)

EXHIBIT 16

Joint Filing Agreement

PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows that such information is inaccurate.

Dated: July 1, 2015.

	CASTLERIGG MASTER INVESTMENTS LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG INTERNATIONAL LIMITED
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG INTERNATIONAL HOLDINGS LIMITED
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG OFFSHORE HOLDINGS, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG MERGER ARBITRAGE AND EQUITY EVENT FUND, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG MERGER ARBITRAGE AND EQUITY EVENT INTERMEDIATE FUND, L.P.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG MERGER ARBITRAGE AND EQUITY EVENT MASTER FUND, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG ACTIVE INVESTMENT FUND, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	CASTLERIGG ACTIVE INVESTMENT INTERMEDIATE FUND, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer
	CASTLERIGG ACTIVE INVESTMENT MASTER FUND, LTD.
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	XXXXXXX XXXXX INVESTMENT SOLUTIONS SICAV, an umbrella fund with segregated liability between sub-funds, acting for and on behalf of Xxxxxxx Xxxxx Investment Solutions -- Castlerigg Equity Event and Arbitrage UCITS Fund
	By:	Xxxxxxx Investment Services, L.L.C., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	ALTMFX TRUST, an open-end, management investment company, acting for and on behalf of Castlerigg Equity Event and Arbitrage Fund
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	PULTENEY STREET PARTNERS, LP
	By:	Xxxxxxx Asset Management Corp., as Investment Manager
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	XXXXXXX ASSET MANAGEMENT CORP.
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Chief Executive Officer

	XXXXXXX INVESTMENT SERVICES, L.L.C.
	By:	/s/ Xxxxxx X. Xxxxxxx
	Name:	Xxxxxx X. Xxxxxxx
	Title:	Managing Member

/s/ Xxxxxx X. Xxxxxxx

Xxxxxx X. Xxxxxxx