# Sienna Co-investor Partners LP — Form D

Sienna Co-investor Partners LP of LONDON, X0, a pooled investment fund, filed a Form D exempt-offering notice with the SEC on 2024-10-29. Industry: Pooled Investment Fund.

## Offering

- Filed: 2024-10-29
- Form: D
- Accession: 0002042920-24-000002
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.1, 3C.7
- Security types: equity, fund interests
- SEC file number: 021-528032

## Issuer

- Name: Sienna Co-investor Partners LP
- CIK: 0002042920
- Entity type: Other
- Jurisdiction: UNITED KINGDOM
- Incorporated: 2024
- Address: MAYFAIR EQUITY PARTNERS LLP, LONDON, X0, W1S 1YQ
- Phone: 44 20 3058 2670

## Officers, directors & promoters (8)

| Name | Role | Location |
| --- | --- | --- |
| Waqqas Thomas Ahmad | Director | London, X0 |
| Bertie Thomas Aykroyd | Director | London, X0 |
| Kunal William Dasgupta | Director | London, X0 |
| Daniel William Sasaki | Director | London, X0 |
| Kunal William Dasgupta | Executive Officer | London, X0 |
| - Mayfair Equity Partners LLP | Executive Officer | London, X0 |
| Daniel William Sasaki | Executive Officer | London, X0 |
| - Mayfair Equity Partners III Co-Investor A GP LLP | Promoter | London, X0 |

## More

- [CIK 2042920 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2042920&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0002042920-24-000002.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.