0002141904-26-000001.txt : 20260629 0002141904-26-000001.hdr.sgml : 20260629 20260629120357 ACCESSION NUMBER: 0002141904-26-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(7) FILED AS OF DATE: 20260629 DATE AS OF CHANGE: 20260629 EFFECTIVENESS DATE: 20260629 FILER: COMPANY DATA: COMPANY CONFORMED NAME: StepStone SISS Infrastructure Opportunities Partnership, L.P. CENTRAL INDEX KEY: 0002141904 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-588918 FILM NUMBER: 261133377 BUSINESS ADDRESS: STREET 1: 4225 EXECUTIVE SQUARE STREET 2: SUITE 1600 CITY: LA JOLLA STATE: CA ZIP: 92037 BUSINESS PHONE: 858-768-4468 MAIL ADDRESS: STREET 1: 4225 EXECUTIVE SQUARE STREET 2: SUITE 1600 CITY: LA JOLLA STATE: CA ZIP: 92037 D 1 primary_doc.xml X0708 D LIVE 0002141904 StepStone SISS Infrastructure Opportunities Partnership, L.P. 4225 EXECUTIVE SQUARE SUITE 1600 LA JOLLA CA CALIFORNIA 92037 858-768-4468 DELAWARE None None Limited Partnership true 2026 n/a StepStone SISS Infra (GP) LLC c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer General Partner of the Issuer n/a StepStone Group Real Assets LP c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Sole Member of the General Partner of the Issuer n/a StepStone Group Real Assets Holdings LLC c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer General Partner of Sole Member of the General Partner of the Issuer Joey Wong Castillo 2 St. James' Market 4225 Executive Square, Suite 1600 London CA CALIFORNIA SW1Y 4AH Executive Officer James O'Leary c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Todd Lapenna c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer David Beamish c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Kate Budiselik c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Duane Cadman c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Bendukai Bouey c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Varun Kapoor c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Stephen Kynaston c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Simon Beer c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer David Park c/o StepStone Group 4225 Executive Square, Suite 1600 La Jolla CA CALIFORNIA 92037 Executive Officer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.7 false true false true true false 0 Indefinite 0 Indefinite false 0 0 0 0 false StepStone SISS Infrastructure Opportunities Partnership, L.P. /s/ Joey Wong Castillo Joey Wong Castillo Partner, Head of Legal, Infra & Real Assets 2026-06-29