New Mountain Finance Corp (NMFC) Insider Trading & SEC Filings
Last SEC filing
New Mountain Finance Corp (NMFC) has filed 1 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-16. Insider sales over the same period: 1 transactions worth $612K. 4 Form 8-K material event filings were reported by NMFC in the last 90 days. 1 Form 144 notice of proposed sale was filed for NMFC stock. InsiderAlpha tracks every NMFC SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About New Mountain Finance Corp (NMFC)
New Mountain Finance Corp trades under the ticker NMFC. InsiderAlpha tracks 30 primary SEC Form 4 filings from 7 reporting insiders for NMFC since 2024, sourced directly from SEC EDGAR.
| SEC CIK | 0001496099 |
|---|
90-Day SEC Filing Activity
| Insider sales (90d) | 1 ($612K) |
|---|---|
| Form 4 filings (90d) | 1 |
| Form 8-K filings (90d) | 4 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-16 |
Recent NMFC Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| John P. Malfettone | Director | S - Open-market sale | 77.5K | $7.89 | $612K | SEC | |
| Adam B. Weinstein | EVP, CAO and Director | P - Open-market purchase | 12.9K | $7.61 | $98K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 92.1K | $8.05 | $741K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 184.2K | $8.05 | $1.48M | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 74.6K | $8.05 | $600K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 149.2K | $8.05 | $1.20M | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 79.3K | $8.10 | $642K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 158.6K | $8.10 | $1.28M | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 62.3K | $8.17 | $509K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 124.6K | $8.17 | $1.02M | SEC | |
| David Ogens | Director | P - Open-market purchase | 2.4K | $7.86 | $19K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 167.0K | $7.94 | $1.33M | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 83.5K | $7.94 | $663K | SEC | |
| David Ogens | Director | P - Open-market purchase | 10.1K | $7.87 | $79K | SEC | |
| Steven B. Klinsky | Director | P - Open-market purchase | 124.5K | $7.79 | $969K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for New Mountain Finance Corp (NMFC). Updated in real time as new filings are submitted to the SEC.
Most-Active NMFC Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| John P. Malfettone | 1 | $612K |
Recent NMFC Form 8-K Material Events
- - Item 2.02, 7.01, 9.01 [SEC]
- - Item 2.03, 8.01 [SEC]
- - Item 8.01 [SEC]
- - Item 5.07, 9.01 [SEC]
- - Item 2.02, 5.02, 7.01, 9.01 [SEC]
Recent NMFC Form 144 Notices of Proposed Sale
- - - [SEC]
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
Recent Insider Filings
- - John P. Malfettone (Director)
- - Adam B. Weinstein (EVP, CAO and Director)
- - Steven B. Klinsky (Director)
- - Steven B. Klinsky (Director)
- - Steven B. Klinsky (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NMFC insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
NMFC Insider Trading - FAQ
- What is the latest insider trade for NMFC?
- New Mountain Finance Corp (NMFC) had 1 insider filings in the last 90 days, with the most recent on 2026-06-16. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying NMFC stock?
- 0 insider purchases of NMFC were filed in the last 90 days.
- How many insiders are selling NMFC stock?
- 1 insider sale of NMFC was filed in the last 90 days, totaling $612K.
- Where can I see NMFC SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks NMFC Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Companies with Insider Activity
Other companies in the InsiderAlpha index with a significant SEC Form 4 insider-trading footprint:
- $NMI NUVEEN MUNICIPAL INCOME FUND INC
- $NMM Navios Maritime Partners L.P.
- $NMRA Neumora Therapeutics, Inc.
- $NMT NUVEEN MASSACHUSETTS QUALITY MUNICIPAL INCOME FUND
- $NMZ NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
- $NOMA Nomadar Corp.
- $NORT Norient Acquisition
- $NPT Texxon Holding Ltd
- $NPV NUVEEN VIRGINIA QUALITY MUNICIPAL INCOME FUND
- $NRO NEUBERGER REAL ESTATE SECURITIES INCOME FUND INC
Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live NMFC dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.