NMFCZ · Insider Trading
New Mountain Finance Corporation 8.250% Notes due 2028
Every open-market purchase and sale reported by NMFCZ officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-11 | John R Kline | CEO, President and Director | W | +2,000 | — |
| 2026-06-16 | John P Malfettone | Director | Sell | −77,500 | −$611.68K |
| 2026-03-18 | Adam B. Weinstein | EVP, CAO and Director | Buy | +12,900 | +$98.16K |
| 2026-03-12 | Steven B Klinsky | Director | Buy | +500,000 | +$4.03M |
| 2026-03-06 | Steven B Klinsky | Director | Buy | +237,873 | +$1.93M |
| 2026-03-05 | Steven B Klinsky | Director | Buy | +437,400 | +$3.52M |
| 2026-03-04 | David Ogens | Director | Buy | +12,500 | +$98.35K |
| 2026-03-03 | Adam B. Weinstein | EVP, CAO and Director | Buy | +41,707 | +$323.70K |
| 2026-03-03 | Steven B Klinsky | Director | Buy | +324,727 | +$2.52M |
| 2026-03-02 | Laura C. Holson Boswerger | COO | Buy | +12,500 | +$96.75K |
| 2025-09-18 | Steven B Klinsky | Director | Buy | +106,691 | +$1.04M |
| 2025-09-16 | Adam B. Weinstein | EVP, CAO and Director | Buy | +49,750 | +$498.83K |
| 2025-08-12 | David Ogens | Director | Buy | +26,000 | +$266.05K |
| 2025-08-11 | Kris Corbett | CFO and Treasurer | Buy | +750 | +$7.60K |
| 2025-03-10 | David Ogens | Director | Buy | +10,000 | +$113.10K |
| 2025-03-06 | David Ogens | Director | Buy | +10,000 | +$113.75K |
| 2024-12-19 | Steven B Klinsky | Director | Buy | +72,280 | +$815.62K |
| 2024-12-17 | Steven B Klinsky | Director | Buy | +100,502 | +$1.18M |
| 2024-12-13 | Steven B Klinsky | Director | Buy | +31,596 | +$371.08K |
| 2024-12-09 | Steven B Klinsky | Director | Buy | +34,018 | +$399.44K |
| 2024-12-05 | Steven B Klinsky | Director | Buy | +6,200 | +$72.83K |
| 2024-11-29 | Steven B Klinsky | Director | Buy | +2,400 | +$28.19K |
| 2024-11-26 | Steven B Klinsky | Director | Buy | +36,721 | +$430.01K |
| 2024-11-22 | Steven B Klinsky | Director | Buy | +89,044 | +$1.03M |
| 2024-11-20 | Steven B Klinsky | Director | Buy | +100,272 | +$1.16M |
| 2024-11-18 | Steven B Klinsky | Director | Buy | +97,008 | +$1.12M |
| 2024-11-14 | Steven B Klinsky | Director | Buy | +152,353 | +$1.76M |
| 2024-11-12 | Steven B Klinsky | Director | Buy | +191,636 | +$2.17M |
| 2024-11-08 | Steven B Klinsky | Director | Buy | +210,469 | +$2.30M |
| 2024-11-08 | John Kline | CEO, President, and Director | Buy | +41,550 | +$453.68K |
| 2024-11-06 | Kris Corbett | CFO and Treasurer | Buy | +2,500 | +$27.12K |
| 2024-11-06 | Adam B. Weinstein | EVP, CAO and Director | Buy | +45,000 | +$489.28K |
| 2024-11-06 | Steven B Klinsky | Director | Buy | +173,657 | +$1.86M |
| 2024-08-07 | Kris Corbett | CFO and Treasurer | Buy | +6,500 | +$76.16K |
| 2024-06-11 | David Ogens | Director | Buy | +3,500 | +$44.17K |
| 2024-04-24 | John Kline | CEO, President, and Director | Sell | −1,238 | −$15.54K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Adam B. Weinstein | EVP, CAO and Director | 751,756 | $18.81M |
| John R Kline | CEO, President and Director | 389,685 | $9.75M |
| John Kline | CEO, President, and Director | 344,356 | $8.61M |
| David Ogens | Director | 257,556 | $6.44M |
| Steven B Klinsky | Director | 127,998 | $3.20M |
| Laura C. Holson Boswerger | COO | 81,029 | $2.03M |
| Kris Corbett | CFO and Treasurer | 9,750 | $243.90K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the NMFCZ quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.