Exhibit A

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock of FirstSun Capital Bancorp, par value $0.0001 per share, and further agree that this Joint Filing Agreement shall be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument. In evidence thereof, the undersigned, being duly authorized, hereby execute this Joint Filing Agreement as of February 13, 2025.

	LIGHTYEAR FUND III, L.P.

	By: Lightyear Fund III GP, L.P., its general partner

	By: Lightyear Fund III GP Holdings, LLC, its general partner


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LIGHTYEAR CO-INVEST PARTNERSHIP III, L.P.

	By: Lightyear Fund III GP Holdings, LLC, its general partner


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LIGHTYEAR FUND III GP, L.P.

	By: Lightyear Fund III GP Holdings, LLC, its general partner


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LIGHTYEAR FUND III GP HOLDINGS, LLC


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LY HOLDINGS, LLC


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LIGHTYEAR CAPITAL III, LLC


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Vice President

	LIGHTYEAR CAPITAL LLC


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Managing Director

	LIGHTYEAR CAPITAL MANAGEMENT LP

	By: Lightyear Capital GP LLC, its general partner


	By:	/s/ Daniel Stencel
	Name:	Daniel Stencel
	Title:	Authorized Signatory

	LIGHTYEAR CAPITAL GP LLC


	By:	/s/ Daniel Stencel
	Name:	Daniel Stencel
	Title:	Authorized Signatory

	MARK F. VASSALLO, an individual


	By:	/s/ Lori Forlano
	Name:	Lori Forlano
	Title:	Attorney-in-Fact

FIRSTSUN CAPITAL BANCORP SCHEDULE 13G/A