X0708 D/A LIVE 0002128212 Dover Street Fund XII Private Investors, LLC 270 Park Avenue NEW YORK NY NEW YORK 10017 (212) 464 - 5060 DELAWARE None None Limited Liability Company true 2025 N/A J.P. Morgan Private Investments Inc. 270 Park Avenue New York NY NEW YORK 10017 Executive Officer Promoter Administrator of the Issuer Martin Vogel Waystone Management Company (Lux) S.A. Skypark Business Ctr 1 Ave de lAeroport Senningerberg N4 LUXEMBOURG L-1110 Director Member of the Board of Managers of the Issuer Darren Gorman Waystone Management Company (Lux) S.A. Skypark Business Ctr 1 Ave de lAeroport Senningerberg N4 LUXEMBOURG L-1110 Director Member of the Board of Managers of the Issuer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.7 true 0002128212-26-000001 2026-03-31 false true true false 250000 J.P. Morgan Securities LLC 79 None None 270 Park Avenue New York NY NEW YORK 10017 All States false Indefinite 300800000 Indefinite false 294 3233500 0 0 false Dover Street Fund XII Private Investors, LLC /s/ Matthew Hakimian Matthew Hakimian Vice President 2026-07-02