# William Blair MB Investments, L.P. - WD Series — Form D

William Blair MB Investments, L.P. - WD Series of CHICAGO, IL, a pooled investment fund, filed a Form D exempt-offering notice with the SEC on 2025-01-31. $8.0M was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2025-01-31
- Form: D
- Accession: 0002048092-25-000002
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.1, 3C.7
- Amount sold: $8.0M
- Investors: 27
- Date of first sale: 2024-12-18
- Security types: fund interests
- Revenue range: Decline to Disclose
- SEC file number: 021-537051

## Issuer

- Name: William Blair MB Investments, L.P. - WD Series
- CIK: 0002048092
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2024
- Address: WILLIAM BLAIR BUILDING, CHICAGO, IL, 60606
- Phone: 312-236-1600

## Officers, directors & promoters (2)

| Name | Role | Location |
| --- | --- | --- |
| Kirsten Olsen | Director | Chicago, IL |
| General Partner William Blair MB Investments GP, L.L.C. | Promoter | Chicago, IL |

## More

- [CIK 2048092 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2048092&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0002048092-25-000002.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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