JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

EXHIBIT A

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated: August 13, 2021

BIOS FUND II, LP

By: Bios Equity Partners II, LP,

its general partner

By: Cavu Management, LP,

its general partner

By: Cavu Advisors, LLC,

its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.
		Manager

By: Bios Capital Management, LP,

its general partner

By: Bios Advisors GP, LLC,

its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Manager

	BIOS FUND II QP, LP
	By:	Bios Equity Partners II, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS FUND II NT, LP
	By:	Bios Equity Partners II, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS INCYSUS CO-INVEST I, LP
	By:	Bios Equity Partners II, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS FUND III, LP
	By:	Bios Equity Partners III, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS FUND III QP, LP
	By:	Bios Equity Partners III, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS FUND III NT, LP
	By:	Bios Equity Partners III, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BP DIRECTORS, LP
	By:	Bios Equity Partners, LP,
		its general partner
		By:	Cavu Management, LP,
			its general partner

	By:	Cavu Advisors, LLC,
		its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

		By:	Bios Capital Management, LP,
			its general partner

	By:	Bios Advisors GP, LLC,
		its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS EQUITY PARTNERS, LP
	By:	Cavu Management, LP,
		its general partner
		By:	Cavu Advisors, LLC,
			its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

	By:	Bios Capital Management, LP,
		its general partner
		By:	Bios Advisors GP, LLC,
			its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS EQUITY PARTNERS II, LP
	By:	Cavu Management, LP,
		its general partner
		By:	Cavu Advisors, LLC,
			its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

	By:	Bios Capital Management, LP,
		its general partner
		By:	Bios Advisors GP, LLC,
			its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	BIOS EQUITY PARTNERS III, LP
	By:	Cavu Management, LP,
		its general partner
		By:	Cavu Advisors, LLC,
			its general partner

	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

	By:	Bios Capital Management, LP,
		its general partner
		By:	Bios Advisors GP, LLC,
			its general partner

	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

	CAVU MANAGEMENT, LP
	By:	Cavu Advisors, LLC,
		its general partner

		By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
			Xxxxxx Xxxxx Xxxxx, Xx.,
			Manager

	BIOS CAPITAL MANAGEMENT, LP
	By:	Bios Advisors GP, LLC
		its general partner

		By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
			Xxxxx Xxxxx Xxxxx Xxxxxxxx
			Manager

	CAVU ADVISORS, LLC
	By:	/s/ Xxxxxx Xxxxx Xxxxx, Xx.
		Xxxxxx Xxxxx Xxxxx, Xx.,
		Manager

	BIOS ADVISORS GP, LLC
	By:	/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx
		Xxxxx Xxxxx Xxxxx Xxxxxxxx,
		Manager

/s/ Xxxxxx Xxxxx Xxxxx, Xx.

XXXXXX XXXXX XXXXX, XX., in his individual capacity

/s/ Xxxxx Xxxxx Xxxxx Xxxxxxxx

XXXXX XXXXX XXXXX XXXXXXXX, in his individual capacity