Type	Name	Date
Registration rights agreement	Registration Rights Agreement, by and among the Company and the investors set forth on the signature pages thereto	03/13/2020
Securities purchase agreement	Purchase Agreement, by and among the Company and the investors set forth on the signature pages thereto	03/13/2020
Securities purchase agreement	Purchase Agreement, by and among the Company and the investors set forth on the signature pages thereto	12/21/2018
Registration rights agreement	Registration Rights Agreement, by and among the Company and the investors set forth on the signature pages thereto	12/21/2018

Type	Name	Date
Employment agreement	Employment Agreement, by and between the Company and Efthymios Deliargyris	08/31/2018
Employment agreement	Employment Agreement with Natasha Giordano	04/20/2017
Employment agreement	Amended and Restated Employment Agreement with David E. Jorden	04/20/2017
Employment agreement	Amended and Restated Employment Agreement with Gary Mossman	04/20/2017
Employment agreement	Amended and Restated Employment Agreement with Michael J. Valentino	04/20/2017