X0708 D LIVE 0002158748 Silent Observer 4, LP 84 NORTH 9TH STREET BROOKLYN NY NEW YORK 11249 646-877-1679 DELAWARE None None Limited Partnership true 2026 Ben Hart 9th Street Brooklyn NY NEW YORK 11249 Executive Officer Pooled Investment Fund Venture Capital Fund false No Revenues 06b false 2026-07-29 false true false 5000 5000000 5000000 0 false 6 0 0 0 false Silent Observer 4, LP /s/ Ben Hart Ben Hart Managing Member of the General Partner 2026-10-22