X0708 D/A LIVE 0002089421 proChain Ventures, a Series of Decile Start Fund, LP 575 LEXINGTON AVE 14TH FLOOR NEW YORK NY NEW YORK 10022 3014124975 DELAWARE None None Limited Partnership true 2025 - Decile Start Fund GP, LLC 575 Lexington Ave 14th Floor New York NY NEW YORK 10022 Executive Officer General Partner of the Fund - Decile Start Fund Management, LLC 575 Lexington Ave 14th Floor New York NY NEW YORK 10022 Executive Officer Manager of the General Partner of the Fund Gregory Adeodato Ressi di Cervia 575 Lexington Ave 14th Floor New York NY NEW YORK 10022 Executive Officer Director Managing Partner of the Manager of the General Partner Long Pham 575 Lexington Ave 14th Floor New York NY NEW YORK 10022 Executive Officer Director Managing Partner of the Manager of the General Partner - proChain Ventures Management Company, LLC 911 Washington Avenue Suite 501 St. Louis MO MISSOURI 63128 Promoter James P. Keating 911 Washington Avenue Suite 501 St. Louis MO MISSOURI 63128 Promoter Pooled Investment Fund Venture Capital Fund false Decline to Disclose 06c 3C 3C.1 true 0002089421-26-000001 2025-09-02 true true false 0 575000 575000 0 Issuer's original Form D relied on Rule 506(b) with respect of $225,000 amount sold, and this amendment relies on Rule 506(c) for the remaining offering amount. false 6 0 0 0 Decile Start Fund GP, LLC and its affiliates receive management fees and performance fees, and/or allocations based on capital commitments of limited partners of the Fund. false proChain Ventures, a Series of Decile Start Fund, LP Long Pham Long Pham Managing Partner of the Manager of the General Partner 2026-09-30