# SUN MOUNTAIN PARTNERS, LLC

SUN MOUNTAIN PARTNERS, LLC is an SEC-registered investment adviser.

## Registration

- CRD: 290560
- Type: SEC-registered investment adviser
- SEC file number: 801-136947
- Phone: 914-806-6072
- Latest filing: 2026-07-09
- Regulatory AUM: $187.2M
- Discretionary AUM: $187.2M
- Clients: 1
- Accounts: 15

## Business model

- Compensation: % of AUM, Performance
- Clients served: Investment cos

## Officers, owners & control persons (5)

| Name | Role | Location |
| --- | --- | --- |
| [Christian Richard Solberg](https://search.stillhousedata.com/person/717755) | MANAGER; MANAGER AND CHIEF COMPLIANCE OFFICER | — |
| [William N Thorndike](https://search.stillhousedata.com/person/717756) | MEMBER | — |
| [SOLBERG RICHARD](https://search.stillhousedata.com/person/759803) | MANAGER | — |
| [THORNDIKE WILLIAM N](https://search.stillhousedata.com/person/808144) | MEMBER | — |
| [William Nicholas Thorndike](https://search.stillhousedata.com/person/1681917) | MEMBER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/290560/brochure
- Similar advisers: https://search.stillhousedata.com/firm/290560/similar
- Related entities: https://search.stillhousedata.com/firm/290560/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/290560

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Source: public SEC Form ADV 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.