# US Research Equity Extended Fund, L.P. — Form D/A

US Research Equity Extended Fund, L.P. of BOSTON, MA, a pooled investment fund, filed a Form D amendment with the SEC on 2023-02-23. $1.6B was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2023-02-23
- Form: D/A
- Accession: 0000919574-23-001860
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.7
- Amount sold: $1.6B
- Investors: 83
- Date of first sale: 2016-02-01
- Security types: equity, fund interests
- SEC file number: 021-257406

## Issuer

- Name: US Research Equity Extended Fund, L.P.
- CIK: 0001666361
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2015
- Address: WELLINGTON ALTERNATIVE INVESTMENTS LLC, BOSTON, MA, 02210
- Phone: 617-951-5372

## Officers, directors & promoters (11)

| Name | Role | Location |
| --- | --- | --- |
| -- Wellington Management Company LLP | Executive Officer | Boston, MA |
| -- Wellington Management Company LLP | Promoter | Boston, MA |
| -- Wellington Management Company LLP | Related Person | Boston, MA |
| -- Wellington Alternative Investments LLC | Executive Officer | Boston, MA |
| -- Wellington Alternative Investments LLC | Promoter | Boston, MA |
| -- Wellington Alternative Investments LLC | Related Person | Boston, MA |
| -- Wellington Management Investment, Inc. | Executive Officer | Boston, MA |
| -- Wellington Management Investment, Inc. | Promoter | Boston, MA |
| -- Wellington Management Investment, Inc. | Related Person | Boston, MA |
| -- Wellington Hedge Management LLC | Executive Officer | Boston, MA |
| -- Wellington Hedge Management LLC | Promoter | Boston, MA |

## Other filings by this issuer (11)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-02-20](https://search.stillhousedata.com/formd/0000919574-26-001299) | D/A | — | $4.2B |
| [2025-02-21](https://search.stillhousedata.com/formd/0000919574-25-001619) | D/A | — | $3.2B |
| [2024-02-23](https://search.stillhousedata.com/formd/0000919574-24-001683) | D/A | — | $1.9B |
| [2022-02-24](https://search.stillhousedata.com/formd/0000919574-22-001836) | D/A | — | $1.4B |
| [2021-02-24](https://search.stillhousedata.com/formd/0000919574-21-001923) | D/A | — | $1.3B |
| [2020-02-24](https://search.stillhousedata.com/formd/0000919574-20-001848) | D/A | — | $1.1B |
| [2019-07-15](https://search.stillhousedata.com/formd/0000919574-19-004609) | D/A | — | $975.0M |
| [2018-07-13](https://search.stillhousedata.com/formd/0000919574-18-004784) | D/A | — | $798.8M |
| [2017-07-14](https://search.stillhousedata.com/formd/0000919574-17-005458) | D/A | — | $42.8M |
| [2016-07-14](https://search.stillhousedata.com/formd/0000919574-16-014169) | D/A | — | $27.9M |
| [2016-02-12](https://search.stillhousedata.com/formd/0000919574-16-010274) | D | — | $26.6M |

## More

- [CIK 1666361 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1666361&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0000919574-23-001860.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.