# New Mountain Capital, L.L.C.

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 1407718. Source: https://holderbook.com/funds/1407718-new-mountain-capital-l-l-c/

- Reported value: $138.6M
- Positions: 1
- Weight of the ten largest: 100.0%
- Filed: 2026-08-14

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| AVANTOR INC | [AVTR](https://holderbook.com/stocks/AVTR/) | $138.6M | 14,000,000 | 100.0% | 16 |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $138.6M | 1 |
| Q1 2026 | $109.8M | 1 |
| Q4 2025 | $160.4M | 1 |
| Q3 2025 | $174.7M | 1 |
| Q2 2025 | $188.4M | 1 |
| Q1 2025 | $226.9M | 1 |
| Q4 2024 | $295.0M | 1 |
| Q3 2024 | $1.7B | 2 |
| Q2 2024 | $1.5B | 2 |
| Q1 2024 | $1.6B | 2 |
| Q4 2023 | $1.5B | 3 |
| Q3 2023 | $1.8B | 3 |