Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned persons hereby agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Common Stock, par value $0.0013 per share of Progenics Pharmaceuticals, Inc. and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filing. In evidence thereof each of the undersigned, being duly authorized, hereby execute this Agreement on the date set forth below.

Date: April 5, 2019

VELAN CAPITAL, L.P.
By: Altiva Management Inc., its general partner
By:	/s/ Stephanie P. Cooper
	Name: Stephanie P. Cooper
	Title: President and Secretary
ALTIVA MANAGEMENT INC.
By:	/s/ Stephanie P. Cooper
	Name: Stephanie P. Cooper
	Title: President and Secretary
BALAJI VENKATARAMAN
/s/ Balaji Venkataraman
VIRINDER NOHRIA
/s/ Virinder Nohria
LTE PARTNERS, LLC
By: LTE Management, LLC, its Manager
By:	/s/ Ryan Melkonian
	Name: Ryan Melkonian
	Title: Member and Manager
LTE MANAGEMENT, LLC
By:	/s/ Ryan Melkonian
	Name: Ryan Melkonian
	Title: Member and Manager
MELKONIAN CAPITAL MANAGEMENT, LLC
By:	/s/ Ryan Melkonian
	Name: Ryan Melkonian
	Title: Managing Member
RYAN MELKONIAN
/s/ Ryan Melkonian