New Mountain Finance Corp (NMFC) has 233 open-market insider trades by 22 insiders since 2011. Over the last six months insiders net sold $612K. The most active filer is Steven B. Klinsky, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Steven B. Klinsky | Dir | — | 48 | $124.8M | 2026-03-11 |
| David Malpass | Dir | — | 16 | $5.9M | 2017-03-15 |
| Robert Hamwee | CEO | — | 18 | $5.3M | 2023-07-27 |
| Adam Weinstein | CAOVPDir | — | 28 | $5.2M | 2022-09-06 |
| John Kline | CEOPresDir | — | 17 | $2.7M | 2024-11-06 |
| Adam B. Weinstein | CAOVPDir | — | 4 | $2.5M | 2026-03-17 |
| David Ogens | Dir | — | 21 | $1.5M | 2026-03-03 |
| James Stone | — | — | 21 | $1.4M | 2023-03-14 |
| Kurt Wolfgruber | Dir | — | 10 | $959K | 2018-12-17 |
| Rome G. Arnold III | Dir | — | 6 | $787K | 2023-03-14 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| John P. Malfettone | Director | Sell | $612K | 2026-06-15 |
| Adam B. Weinstein | CAO & VP +1 | Buy | $196K | 2026-03-17 |
| Steven B. Klinsky | Director & 10% | Buy | $4.0M | 2026-03-10 |
| Steven B. Klinsky | Director & 10% | Buy | $1.9M | 2026-03-05 |
| Steven B. Klinsky | Director & 10% | Buy | $3.5M | 2026-03-03 |
| David Ogens | Director | Buy | $98K |
Companies that share insiders with NMFC, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2026-03-03 |
| Adam B. Weinstein | Director & EVP | Buy | $324K | 2026-02-27 |
| Laura C. Holson Boswerger | COO | Buy | $97K | 2026-02-27 |
| Steven B. Klinsky | Director | Buy | $2.5M | 2026-02-27 |
| Steven B. Klinsky | Director | Buy | $2.1M | 2025-09-16 |
| Adam B. Weinstein | CAO & VP +1 | Buy | $998K | 2025-09-15 |
| David Ogens | Director | Buy | $266K | 2025-08-11 |
| Kris Corbett | Treasurer | Buy | $8K | 2025-08-07 |
| David Ogens | Director | Buy | $113K | 2025-03-06 |
| David Ogens | Director | Buy | $114K | 2025-03-04 |