Exhibit 1

In accordance with Rule 13d-1(k)(10) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that this Statement on Schedule 13G relating to the Common Stock of Aviragen Therapeutics, Inc. is being filed with the Securities and Exchange Commission on behalf of each of them.

February 14, 2018	THOMAS M. CLAY
	By:	/s/ Thomas M. Clay
		Thomas M. Clay
February 14, 2018	EAST HILL MANAGEMENT COMPANY, LLC
	By:	/s/ Thomas M. Clay
		Thomas M. Clay, Manager