Exhibit 99.4

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 common stock, par value $0.01 per share, of Alimera Sciences, Inc., a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: May 19, 2023

Velan Capital Master Fund LP
By:	Velan Capital Holdings LLC General Partner
By:	/s/ Adam Morgan
	Name:	Adam Morgan
	Title:	Managing Member

Velan Capital SPV I LLC
By:	Velan Capital Holdings LLC Managing Member
By:	/s/ Adam Morgan
	Name:	Adam Morgan
	Title:	Managing Member

Velan Capital Holdings LLC
By:	/s/ Adam Morgan
	Name:	Adam Morgan
	Title:	Managing Member

Velan Capital Investment Management LP
By:	Velan Capital Management LLC General Partner
By:	/s/ Adam Morgan
	Name:	Adam Morgan
	Title:	Managing Member

Velan Capital Management LLC
By:	/s/ Adam Morgan
	Name:	Adam Morgan
	Title:	Managing Member

/s/ Adam Morgan

Adam Morgan

/s/ Balaji Venkataraman

Balaji Venkataraman