NMFC
New Mountain Finance Corp
Insiders sold $514K net in the last 90 days ·1 seller, 1 buyer· latest Form 4 filed Jun 16, 2026
Insider Buying
$14.1M
reported purchases (SEC code P)
Insider Selling
$612K
reported sales (SEC code S)
Unique Insiders
5
in the rolling window
Latest filing
Jun 16, 2026
Malfettone John P
New Mountain Finance Corp (NMFC) has 11 SEC Form 4 filings (24 transaction rows) in the rolling window, disclosed by 5 distinct insiders. Most recent filing: Jun 16, 2026.
Inside the rolling window, 5 insiders at New Mountain Finance Corp reported 14 open-market purchases totaling $14.1M and 1 open-market sale totaling $612K. The most active filer is Director, 10% Owner KLINSKY STEVEN B with 8 filings. Insiders have net bought $12.0M over the trailing 6 months. The largest single insider purchase in this window was $2.2M by Director, 10% Owner KLINSKY STEVEN B on Mar 11, 2026. The most recent open-market filing is a sale of 77,500 shares by Director Malfettone John P, dated Jun 15, 2026, worth $612K.
- Industry:Asset Management
- CEO:John R. Kline
- HQ:New York City, NY, US
- IPO:2011-05-20
| Source | |||||||
|---|---|---|---|---|---|---|---|
Malfettone John PFirst filing | Director | Sale | 77,500 | $612K | Jun 16 | -4.1% | SEC ↗ |
| EVP, CAO and Director | Purchase | 12,900 | $98K | Mar 18 | -8.4% | SEC ↗ | |
| Director, 10% Owner | Purchase | 223,758 | $1.8M | Mar 12 | -8.6% | SEC ↗ | |
| Director, 10% Owner | Purchase | 276,242 | $2.2M | Mar 12 | -8.6% | SEC ↗ | |
| Director, 10% Owner | Purchase | 237,873 | $1.9M | Mar 6 | -9.3% | SEC ↗ | |
| Director, 10% Owner | Purchase | 250,495 | $2.0M | Mar 5 | -10.6% | SEC ↗ | |
| Director, 10% Owner | Purchase | 186,905 | $1.5M | Mar 5 | -10.6% | SEC ↗ | |
Ogens DavidFirst filing | Director | Purchase | 12,500 | $98K | Mar 4 | — | SEC ↗ |
KLINSKY STEVEN BFirst in 6 months | Director | Purchase | 138,002 | $1.1M | Mar 3 | — | SEC ↗ |
KLINSKY STEVEN BFirst in 6 months | Director | Purchase | 186,725 | $1.5M | Mar 3 | — | SEC ↗ |
Weinstein Adam B.First in 6 months | EVP, CAO and Director | Purchase | 38,400 | $298K | Mar 3 | — | SEC ↗ |
Weinstein Adam B.First in 6 months | EVP, CAO and Director | Purchase | 3,307 | $26K | Mar 3 | — | SEC ↗ |
Boswerger Laura C. HolsonFirst filing | COO | Purchase | 12,500 | $97K | Mar 2 | — | SEC ↗ |
KLINSKY STEVEN BFirst filing | Director | Purchase | 106,691 | $1.0M | Sep 18 | — | SEC ↗ |
Weinstein Adam B.First filing | EVP, CAO and Director | Purchase | 49,750 | $499K | Sep 16 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does NMFC have?
New Mountain Finance Corp (NMFC) has 11 SEC Form 4 filings (24 transaction rows) in the rolling 365-day window, disclosed by 5 distinct insiders. Most recent filing: Jun 16, 2026.
When was the most recent SEC Form 4 filing for NMFC?
The most recent Form 4 filing for NMFC on Tracefour is dated Jun 16, 2026.
Who is the most active insider at NMFC?
The most active SEC Form 4 filer at NMFC in the rolling window is Director, 10% Owner KLINSKY STEVEN B, with 8 filings.
What is the net insider flow at NMFC over the last 6 months?
Over the trailing 180 days, insiders at NMFC have net bought $12.0M based on SEC Form 4 disclosures.
What was the largest insider purchase at NMFC?
The largest single insider open-market purchase at NMFC in the rolling window was $2.2M by Director, 10% Owner KLINSKY STEVEN B on 2026-03-11.
What is the total insider buy and sell value at NMFC in the current window?
Inside the rolling window, insiders at NMFC bought $14.1M and sold $612K based on SEC Form 4 filings.
Can I get alerts for NMFC insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at New Mountain Finance Corp (NMFC). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.