EXHIBIT C JOINT FILING AGREEMENT

EXHIBIT C

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under 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 13D (including amendments thereto) with respect to the Common Stock of Janux Therapeutics, Inc. and further agree that this agreement be included as an exhibit to such filing. Each party to the agreement expressly authorizes each other party to file on its behalf any and all amendments to such statement. Each party to this agreement agrees that this joint filing agreement may be signed in counterparts.

In evidence whereof, the undersigned have caused this Agreement to be executed on their behalf this 24^th day of June, 2021.

AVALON VENTURES XI, L.P.						AVALON BIOVENTURES SPV I, L.P.
By:		/s/ Xxxxx Xxxxxxx Name: Xxxxx Xxxxxxx Title: Authorized Signer				By:		/s/ Xxxxx Xxxxxxx Name: Xxxxx Xxxxxxx Title: Authorized Signer
AVALON VENTURES XI GP LLC						ABV SPV I GP LLC
By:		/s/ Xxxxx Xxxxxxx Name: Xxxxx Xxxxxxx Title: Authorized Signer				By:		/s/ Xxxxx Xxxxxxx Name: Xxxxx Xxxxxxx Title: Authorized Signer
/s/ Xxxxx Xxxxxxxx XXXXX XXXXXXXX						/s/ Xxxxxxx Xxxxxxxx XXXXXXX XXXXXXXX
/s/ Xxxxxx Xxxxxxxx XXXXXX XXXXXXXX						/s/ Xxx Xxxxxxx, Ph.D. XXX XXXXXXX, PH.D.
/s/ Xxxxx Xxxxxxx XXXXX XXXXXXX