0002146615-26-000001.txt : 20260804 0002146615-26-000001.hdr.sgml : 20260804 20260804153621 ACCESSION NUMBER: 0002146615-26-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: 06c ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) FILED AS OF DATE: 20260804 DATE AS OF CHANGE: 20260804 EFFECTIVENESS DATE: 20260804 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Spark Capital Founders' Fund IX, L.P. CENTRAL INDEX KEY: 0002146615 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-593119 FILM NUMBER: 261238120 BUSINESS ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 59TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-830-2000 MAIL ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 59TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 D 1 primary_doc.xml X0708 D LIVE 0002146615 Spark Capital Founders' Fund IX, L.P. 200 CLARENDON STREET 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 06c 3C 3C.1 false 2026-07-30 false true false 0 10119000 10119000 0 false 47 0 0 0 false Spark Capital Founders' Fund IX, L.P. /s/ Alexa Lyons Alexa Lyons Chief Financial Officer 2026-08-04