East Rock Simco Endowment Fund, L.P.

This is Shapiro's first filing on EDGAR with no prior fund history in the SEC system, signaling either a newly formed manager launching their debut fund or an established operator moving their regulatory footprint to federal registration for the first time.

Filing an amendment to a placeholder in May 2026 suggests Shapiro is preparing infrastructure ahead of a likely capital raise in H2 2026 or early 2027, possibly timed to secure LP commitments during the typical autumn allocation cycle when endowments and foundations finalize fiscal-year deployment budgets.

Verify whether Shapiro has key-man language tied to his personal involvement and whether the 06c exemption grants full operational flexibility or carries restrictions on GP compensation or LP reporting that would differ from a traditional onshore structure—also confirm this filing's amendment history to understand what terms or fund scope have shifted since the initial submission.