X0708 D LIVE 0002109633 Buttonwood Titan QC Fund LLC - Series BIG DATA IV 1000 RXR PLAZA UNIONDALE NY NEW YORK 11556 212-440-9650 DELAWARE None None Limited Liability Company true 2025 Stephan Stein 1000 RXR Plaza Uniondale NY NEW YORK 11556 Executive Officer Manager Joseph Alagna 1000 RXR Plaza Uniondale NY NEW YORK 11556 Executive Officer Manager of the Sole Member of the Manager of the Issuer and Manager of the Investment Advisor of the Issuer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.1 false 2025-11-05 false true true false 100000 Joseph Gunnar & Co., LLC 24795 None None 1000 RXR Plaza Uniondale NY NEW YORK 11556 All States true 14542000 14542000 0 false 100 685650 0 0 false Buttonwood Titan QC Fund LLC - Series BIG DATA IV /s/ Stephan Stein Stephan Stein Manager 2026-06-30