# Prelude Structured Alternatives Master Fund, LP — Form D/A

Prelude Structured Alternatives Master Fund, LP of NEW YORK, NY, a pooled investment fund, filed a Form D amendment with the SEC on 2026-02-24. $2.4B was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2026-02-24
- Form: D/A
- Accession: 0001804133-26-000005
- Industry: Pooled Investment Fund
- Exemptions: 06b,3C,3C.7
- Amount sold: $2.4B
- Investors: 197
- Date of first sale: 2020-02-03
- Security types: equity, fund interests
- SEC file number: 021-361257

## Issuer

- Name: Prelude Structured Alternatives Master Fund, LP
- CIK: 0001804133
- Entity type: Limited Partnership
- Jurisdiction: DELAWARE
- Incorporated: 2019
- Address: 600 Lexington Avenue, NEW YORK, NY, 10022
- Phone: 2125461180

## Officers, directors & promoters (9)

| Name | Role | Location |
| --- | --- | --- |
| Cisco J. del Valle | Executive Officer | New York, NY |
| Cisco J. del Valle | Related Person | New York, NY |
| N/A Prelude Capital Management, LLC | Related Person | New York, NY |
| N/A Prelude Capital Partners, LLC | Related Person | New York, NY |
| Gavin Saitowitz | Related Person | New York, NY |
| N/A Prelude Capital Partners, LLC | Director | New York, NY |
| N/A Prelude Capital Management, LLC | Executive Officer | New York, NY |
| Gavin Saitowitz | Executive Officer | New York, NY |
| Cisco J Del Valle | Executive Officer | — |

## Other filings by this issuer (6)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2025-02-21](https://search.stillhousedata.com/formd/0001804133-25-000001) | D/A | — | $2.2B |
| [2024-02-23](https://search.stillhousedata.com/formd/0001804133-24-000001) | D/A | — | $2.1B |
| [2023-02-24](https://search.stillhousedata.com/formd/0001804133-23-000001) | D/A | — | $2.0B |
| [2022-02-24](https://search.stillhousedata.com/formd/0001804133-22-000001) | D/A | — | $1.7B |
| [2021-02-24](https://search.stillhousedata.com/formd/0001804133-21-000001) | D/A | — | $3.7B |
| [2020-02-25](https://search.stillhousedata.com/formd/0001804133-20-000001) | D | — | $87.3M |

## More

- [CIK 1804133 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1804133&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001804133-26-000005.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.