X0708 D LIVE 0002142754 IronArc Opportunities XXVIII, LP 111 SANDRA MURAIDA WAY STE. 100 AUSTIN TX TEXAS 78703 2064507899 DELAWARE None None Limited Partnership true 2026 Patrick Flynn 111 Sandra Muraida Way Ste. 100 Austin TX TEXAS 78703 Executive Officer Promoter Principal of the General Partner of the Issuer n/a IronArc GP-A, LLC 111 Sandra Muraida Way Ste. 100 Austin TX TEXAS 78703 Promoter General Partner of the Issuer Pooled Investment Fund Venture Capital Fund false Decline to Disclose 06b 3C 3C.1 false 2026-06-16 false true false 100000 12500000 12500000 0 false 2 0 0 0 false IronArc Opportunities XXVIII, LP /s/ Patrick Flynn Patrick Flynn Principal of the General Partner of the Issuer 2026-10-02