EXHIBIT A

Joint Filing Agreement

Each of the undersigned hereby agree to file jointly the statement on Schedule 13G to which this Agreement is attached and any amendments thereto which may be deemed necessary, pursuant to Regulation 13D-G under the Securities Exchange Act of 1934.

It is understood and agreed that each of the parties hereto is responsible for the timely filing of such statement and any amendments thereto, and for the completeness and accuracy of the information concerning such party contained therein, but such party is not responsible for the completeness and accuracy of information concerning any other party unless such party knows or has reason to believe such information is inaccurate.

It is understood and agreed that a copy of this Agreement shall be attached as an exhibit to the statement on Schedule 13G, and any amendments thereto, filed on behalf of each of the parties hereto with respect to the Issuer.

Dated: August 12, 2025

	Entities:

	Oak Investment Partners XIII, L.P.
	Oak Associates XIII, LLC
	Oak Management Corporation

	/s/ Edward F. Glassmeyer
	Edward F. Glassmeyer, General Partner or Managing Member or attorney-in-fact for the above-listed entities

	Individuals:

	Bandel L. Carano
	Edward F. Glassmeyer
	Fredric W. Harman
	Ann H. Lamont
	Grace A. Ames
	Andrew Adams

	/s/ Edward F. Glassmeyer
	Edward F. Glassmeyer, individually and as attorney-in-fact for the above-listed individuals

Circle Internet Group, Inc. SCHEDULE 13G