EX-99.A 2 d64544dex99a.htm EX-99.A

EX-99.A

Exhibit A

AGREEMENT REGARDING THE JOINT FILING OF

SCHEDULE 13D

The undersigned being duly authorized thereunto, hereby execute this agreement as an exhibit to this Schedule 13D to evidence the agreement of the below-named parties, in accordance with the rules promulgated pursuant to the Securities Exchange Act of 1934, as amended, to file this Schedule 13D (including amendments thereto) jointly on behalf of each such party.

Dated: August 22, 2019		Bain Capital Life Sciences Fund, L.P.
		By:		Bain Capital Life Sciences Partners, LP
				its general partner
		By:		Bain Capital Life Sciences Investors, LLC
				its general partner
		By:		/s/ Andrew Hack, M.D., Ph.D.
				Name:		Andrew Hack, M.D., Ph.D.
				Title:		Managing Director
		BCIP Life Sciences Associates, LP
		By:		Boylston Coinvestors, LLC
				its general partner
		By:		/s/ Andrew Hack, M.D., Ph.D.
				Name:		Andrew Hack, M.D., Ph.D.
				Title:		Authorized Signatory