Titan Pharmaceuticals (TTNP) SC 13D TITAN PHARMACEUTICALS / Activist Investing ownership change

Exhibit 99.2

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.001 par value, of Titan Pharmaceuticals, Inc., a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: April 25, 2022

ACTIVIST INVESTING LLC
By:	/s/ David E. Lazar
	Name:	David E. Lazar
	Title:	Chief Executive Officer

/s/ David E. Lazar

DAVID E. LAZAR