X0708 D/A LIVE 0002123887 Spark Capital IX, L.P. 200 CLARENDON ST. 59TH FLOOR BOSTON MA MASSACHUSETTS 02116 617-830-2000 DELAWARE None None Limited Partnership true 2026 N/A Spark Management Partners IX, LLC c/o Spark Capital 200 Clarendon St., 59th Floor Boston MA MASSACHUSETTS 02116 Executive Officer The general partner of the Issuer (the "General Partner") Alex Finkelstein c/o Spark Capital 200 Clarendon St., 59th Floor Boston MA MASSACHUSETTS 02116 Executive Officer Managing Member of the General Partner Fraser Kelton c/o Spark Capital 200 Clarendon St., 59th Floor Boston MA MASSACHUSETTS 02116 Executive Officer Managing Member of the General Partner Jeremy Philips c/o Spark Capital 200 Clarendon St., 59th Floor Boston MA MASSACHUSETTS 02116 Executive Officer Managing Member of the General Partner Santo Politi c/o Spark Capital 200 Clarendon St., 59th Floor Boston MA MASSACHUSETTS 02116 Executive Officer Managing Member of the General Partner Pooled Investment Fund Venture Capital Fund false Not Applicable 06b 3C 3C.7 true 0002123887-26-000001 2026-04-03 false true false 0 1000363000 1000363000 0 false 258 0 0 0 false Spark Capital IX, L.P. /s/ Alexa Lyons Alexa Lyons Chief Financial Officer 2026-06-15