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SEC Form D · filed December 16, 2025

William Blair MB Investments, L.P. OC 2025 Series

Offering
—
Sold
—
Exemption
Rule 506(b)
Industry
Pooled Investment Fund
Location
CHICAGO, IL
Type
Pooled fund

Rule 506(b): private placement to accredited investors, no public advertising.

People & firms on this filing (6)

William Blair MB Investments GP, L.L.C · Chicago, ILPromoterKirsten Olsen · Chicago, ILDirectorWilliam Blair MB Investments GP, L.L.C · Chicago, ILPromoterKirsten Olsen · Chicago, ILDirectorJulio Peguero · SEATTLE, WAPromoterMark Nelson · SEATTLE, WADirector

Public SEC Form D (Reg D) filing. · View issuer on SEC EDGAR ↗