# PDT Mosaic Fund, LLC — Form D/A

PDT Mosaic Fund, LLC of NEW YORK, NY, a pooled investment fund, filed a Form D amendment with the SEC on 2025-05-30. $1.3B was reported sold. Industry: Pooled Investment Fund.

## Offering

- Filed: 2025-05-30
- Form: D/A
- Accession: 0001564702-25-000013
- Industry: Pooled Investment Fund
- Exemptions: 06b, 3C, 3C.7
- Amount sold: $1.3B
- Investors: 78
- Date of first sale: 2013-04-01
- Security types: fund interests
- SEC file number: 021-193529

## Issuer

- Name: PDT Mosaic Fund, LLC
- CIK: 0001564627
- Entity type: Limited Liability Company
- Jurisdiction: DELAWARE
- Incorporated: 2012
- Address: 60 COLUMBUS CIRCLE 18TH FLOOR, NEW YORK, NY, 10023
- Phone: 212-621-0400

## Officers, directors & promoters (6)

| Name | Role | Location |
| --- | --- | --- |
| Brian Thomas | Executive Officer | New York, NY |
| Dede Welles | Executive Officer | New York, NY |
| Brian Thomas | Related Person | New York, NY |
| Dede Welles | Related Person | New York, NY |
| Amy Wong | Executive Officer | CUPERTINO, CA |
| Douglas Gschwind | Executive Officer | New York, NY |

## Other filings by this issuer (14)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-05-29](https://search.stillhousedata.com/formd/0001564702-26-000008) | D/A | — | $1.5B |
| [2024-05-30](https://search.stillhousedata.com/formd/0001564702-24-000006) | D/A | — | $1.3B |
| [2023-05-31](https://search.stillhousedata.com/formd/0001564702-23-000012) | D/A | — | $1.2B |
| [2022-05-31](https://search.stillhousedata.com/formd/0001564627-22-000001) | D/A | — | $1.1B |
| [2021-06-01](https://search.stillhousedata.com/formd/0001564627-21-000001) | D/A | — | $1.1B |
| [2020-06-12](https://search.stillhousedata.com/formd/0001564627-20-000001) | D/A | — | $1.0B |
| [2019-06-14](https://search.stillhousedata.com/formd/0001564627-19-000001) | D/A | — | $945.3M |
| [2018-06-19](https://search.stillhousedata.com/formd/0001564627-18-000001) | D/A | — | $843.4M |
| [2017-06-19](https://search.stillhousedata.com/formd/0001564627-17-000001) | D/A | — | $802.9M |
| [2016-06-17](https://search.stillhousedata.com/formd/0001564627-16-000002) | D/A | — | $541.2M |
| [2015-06-19](https://search.stillhousedata.com/formd/0001564627-15-000001) | D/A | — | $173.1M |
| [2014-06-18](https://search.stillhousedata.com/formd/0001564627-14-000002) | D/A | — | $7.1M |
| [2014-03-18](https://search.stillhousedata.com/formd/0001564627-14-000001) | D/A | — | $2.5M |
| [2013-03-19](https://search.stillhousedata.com/formd/0001140361-13-013083) | D | — | — |

## More

- [CIK 1564627 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1564627&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001564702-25-000013.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.