X0708 D LIVE 0002157372 Alpha Partners Fund IV, LP 228 PARK AVENUE SOUTH, PMB 84483 NEW YORK NY NEW YORK 10003 212-381-4411 DELAWARE None None Limited Partnership true 2026 Alpha Partners Management LLC 228 Park Avenue South, PMB 84484 New York NY NEW YORK 10003 Executive Officer Manager of Issuer Sean O'Brien 228 Park Avenue South, PMB 84484 New York NY NEW YORK 10003 Executive Officer Chief Financial Officer of Alpha Partners Management LLC, manager of Issuer Stephen Brotman 228 Park Avenue South, PMB 84484 New York NY NEW YORK 10003 Executive Officer Manager of Alpha Partners Management LLC, manager of Issuer Alpha Partners GP IV, LLC 228 Park Avenue South, PMB 84484 New York NY NEW YORK 10003 Executive Officer General Partner of Issuer Pooled Investment Fund Venture Capital Fund false Decline to Disclose 06b 3C 3C.1 false 2026-10-01 true true false 0 Indefinite 42675000 Indefinite false 8 0 0 0 true The manager is entitled to carried interest and management fees, which are fully discussed in the issuer's governing documents. false Alpha Partners Fund IV, LP /s/ Sean O'Brien Sean O'Brien CFO of Alpha Partners Management LLC, manager of Issuer 2026-10-15