Boxer Capital SC 13G Nkarta / Boxer Capital ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G in respect of the Common Stock of Nkarta, Inc. is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G may 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 or 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.

EXECUTED January 18, 2024.

BOXER CAPITAL, LLC
By:	/s/ Aaron I. Davis
	Name:	Aaron I. Davis
	Title:	Authorized Signatory
BOXER ASSET MANAGEMENT INC.
By:	/s/ Paul Higgs
	Name:	Paul Higgs
	Title:	Director
JOSEPH C. LEWIS
/s/ Joseph C. Lewis
Joseph C. Lewis, Individually
MVA INVESTORS, LLC
By:	/s/ Aaron I. Davis
	Name:	Aaron I. Davis
	Title:	Authorized Signatory
AARON I. DAVIS
/s/ Aaron I. Davis
Aaron I. Davis, Individually