# NEW MOUNTAIN CAPITAL, L.L.C.

NEW MOUNTAIN CAPITAL, L.L.C. of NEW YORK, NY is an SEC-registered investment adviser.

## Registration

- CRD: 161394
- Type: SEC-registered investment adviser
- SEC file number: 801-74051
- Location: 1633 BROADWAY, 48TH FL., NEW YORK, NY, 10019
- Phone: 212-720-0300
- Latest filing: 2026-03-30
- Regulatory AUM: $46.4B
- Discretionary AUM: $46.4B
- Clients: 235
- Accounts: 14

## Business model

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

## Officers, owners & control persons (11)

| Name | Role | Location |
| --- | --- | --- |
| Adam Weinstein | MANAGING DIRECTOR, CHIEF FINANCIAL OFFICER | New York, NY |
| Steven Bruce Klinsky | FOUNDER, CHIEF EXECUTIVE OFFICER; LIMITED PARTNER; MANAGING MEMBER | — |
| Joseph Wesley Hartswell | MANAGING DIRECTOR AND CHIEF COMPLIANCE OFFICER | — |
| Adam Brett Weinstein | PRESIDENT, MANAGING DIRECTOR, CHIEF OPERATING OFFICER | — |
| KLINSKY STEVEN BRUCE | FOUNDER, CHIEF EXECUTIVE OFFICER; LIMITED PARTNER; MANAGING MEMBER | — |
| COLLINS ADAM JEREMY | CHIEF FINANCIAL OFFICER; MANAGING DIRECTOR, CO-CHIEF FINANCIAL OFFICER | — |
| BOSCO PAULA ANN | CHIEF COMPLIANCE OFFICER; MANAGING DIRECTOR, CCO & CHIEF REGULATORY COUNSEL | — |
| WEINSTEIN ADAM | MANAGING DIRECTOR, CHIEF FINANCIAL OFFICER; MANAGING DIRECTOR, CO-CHIEF FINANCIAL OFFICER | — |
| HARTSWELL JOSEPH WESLEY | MANAGING DIRECTOR AND CHIEF COMPLIANCE OFFICER | — |
| LONDAL DOUGLAS FRED | PRESIDENT, CHIEF OPERATING OFFICER, MANAGING DIRECTOR | — |
| John Michael Hausler | MANAGING DIRECTOR AND CHIEF FINANCIAL OFFICER | — |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/161394/brochure
- Similar advisers: https://search.stillhousedata.com/firm/161394/similar
- Related entities: https://search.stillhousedata.com/firm/161394/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/161394

---

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.