# Arrowstreet (Delaware) Custom Alpha Extension Fund Q L.P. — Form D/A

Arrowstreet (Delaware) Custom Alpha Extension Fund Q L.P. of BOSTON, MA, a pooled investment fund, filed a Form D amendment with the SEC on 2025-04-23. $3.9B was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2025-04-23
- Form: D/A
- Accession: 0002054936-25-000036
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.1, 3C.7
- Amount sold: $3.9B
- Minimum investment: $100K
- Investors: 1
- Date of first sale: 2024-11-01
- Security types: fund interests
- SEC file number: 021-526932

## Issuer

- Name: Arrowstreet (Delaware) Custom Alpha Extension Fund Q L.P.
- CIK: 0002035788
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2024
- Address: 200 CLARENDON STREET 30TH FLOOR, BOSTON, MA, 02116
- Phone: (617) 919-0000

## Officers, directors & promoters (2)

| Name | Role | Location |
| --- | --- | --- |
| Brattle GP LLC Arrowstreet Capital | Executive Officer | Boston, MA |
| Limited Partnership Arrowstreet Capital | Executive Officer | Boston, MA |

## Other filings by this issuer (2)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-04-30](https://search.stillhousedata.com/formd/0002035788-26-000001) | D/A | — | $3.9B |
| [2024-10-16](https://search.stillhousedata.com/formd/0002035788-24-000001) | D | — | — |

## More

- [CIK 2035788 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2035788&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0002054936-25-000036.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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