Exhibit 4

Joint Filing Agreement

The undersigned parties hereby agree to the joint filing of the Statement on Schedule 13D filed herewith, and any amendments hereto, relating to shares of Common Stock, $0.001 par value per share of Tidewater, Inc. with the Securities and Exchange Commission pursuant to Rule 13d-1(k).

Date: June 2, 2020

/s/ Robert E. Robotti		/s/ Suzanne Robotti
Robert E. Robotti		Suzanne Robotti
Robotti & Company, Incorporated		Suzanne and Robert Robotti Foundation, Inc.
By:	/s/ Robert E. Robotti	By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti		Name: Robert E. Robotti
	Title: President and Treasurer		Title: Director
Robotti & Company Advisors, LLC		Robotti Securities, LLC
By:	/s/ Robert E. Robotti	By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti		Name: Robert E. Robotti
	Title: President and Treasurer		Title: President and Treasurer
Ravenswood Management Company, L.L.C.
By:	/s/ Robert E. Robotti	/s/ Kenneth R. Wasiak
	Name: Robert E. Robotti
	Title: Managing Member
The Ravenswood Investment Company, L.P.		Ravenswood Investments III, L.P.
By:	Ravenswood Management Company, L.L.C., General Partner	By:	Ravenswood Management Company, L.L.C., General Partner
By:	/s/ Robert E. Robotti	By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti		Name: Robert E. Robotti
	Title: Managing Member		Title: Managing Member