# AMG Pantheon Master Fund, LLC

AMG Pantheon Master Fund, LLC (CIK 1609212) is an SEC-registered fund company and $6.6B in net assets as of 2026-03-31.

## Registrant

- CIK: 1609212
- File number: 811-22972
- LEI: 5493005VLS1G1FKDZC59
- Address: 680 Washington Blvd., Stamford, US-CT, 06901
- Phone: 2032993500
- Net assets: $6.6B
- Total assets: $6.7B
- Latest report: 2026-03-31

## Fund series (1)

| Series | Net assets |
| --- | --- |
| AMG Pantheon Master Fund, LLC | $6.6B |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [Dreyfus Institutional Preferred Government Money Market Fund](https://search.stillhousedata.com/security/26200X100) | $1.1B |
| Kedaara Capital Fund II LLP | $180.2M |
| Alpine Investors Apex CV-A, LP | $178.3M |
| QHP Sapphire SPV, L.P. | $175.5M |
| KKR Compass Co-Invest L.P. | $142.5M |
| North Haven Capital Partners W50 CV LP | $141.8M |
| Hg Vibranium Co-Invest L.P. | $140.1M |
| Digital Colony Partners, L.P. | $135.4M |
| Insight Venture Partners XI, L.P. | $131.9M |
| Heartland Dental Holding Corporation | $129.9M |
| [ICG Minimax 2024 Co-Investment I SCSp](https://search.stillhousedata.com/security/000000006) | $128.9M |
| Oakley Capital Guinness B1 SCSp | $128.5M |
| Sherman Opportunity-A LP | $119.6M |
| Shamrock ND Holdco, L.P. | $116.1M |
| Brentwood Associates Opportunities Fund II-A, L.P. | $114.5M |

## More

- [CIK 1609212 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1609212&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1609212.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.