About this data
What it is
When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
Who files it
The insider, usually through the company, within two business days of the trade.
How current
We collect new filings throughout the day on SEC business days.
Worth knowing
Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.

All of this comes from public filings.

Open-market trades per day, last 30 days

05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0
05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0

Purchases Sales

By trade date. Insiders have two business days to file, so the most recent days fill in later.

Latest open-market insider trades

Reset

Showing: ticker NMFC

Latest open-market insider trades
TradedInsiderCompanyTypeSharesPriceValueFiling
Jun 15, 2026John P. Malfettone
Director
NMFC
New Mountain Finance Corporation
Sale77,500$7.89$611.5K SaleForm 4 ↗
Mar 17, 2026Adam B. Weinstein
EVP, CAO and Director, Director
NMFC
New Mountain Finance Corporation
Buy12,900$7.61$98.2K BuyForm 4 ↗
Mar 11, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy184,162$8.05$1.5M BuyForm 4 ↗
Mar 11, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy92,080$8.05$741.2K BuyForm 4 ↗
Mar 10, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy149,172$8.05$1.2M BuyForm 4 ↗
Mar 10, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy74,586$8.05$600.4K BuyForm 4 ↗
Mar 5, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy158,582$8.10$1.3M BuyForm 4 ↗
Mar 5, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy79,291$8.10$642.3K BuyForm 4 ↗
Mar 4, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy124,604$8.17$1.0M BuyForm 4 ↗
Mar 4, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy62,301$8.17$509.0K BuyForm 4 ↗
Mar 3, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy166,997$7.94$1.3M BuyForm 4 ↗
Mar 3, 2026Steven B. Klinsky
Director, 10% owner
NMFC
New Mountain Finance Corporation
Buy83,498$7.94$663.0K BuyForm 4 ↗
Mar 3, 2026David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy2,400$7.86$18.9K BuyForm 4 ↗
Mar 3, 2026David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy10,100$7.87$79.5K BuyForm 4 ↗
Mar 2, 2026Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy124,483$7.79$969.7K BuyForm 4 ↗
Mar 2, 2026Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy62,242$7.79$484.9K BuyForm 4 ↗
Mar 2, 2026Adam B. Weinstein
EVP, CAO and Director, Director
NMFC
New Mountain Finance Corporation
Buy3,307$7.73$25.6K BuyForm 4 ↗
Feb 27, 2026Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy92,001$7.69$707.5K BuyForm 4 ↗
Feb 27, 2026Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy46,001$7.69$353.7K BuyForm 4 ↗
Feb 27, 2026Adam B. Weinstein
EVP, CAO and Director, Director
NMFC
New Mountain Finance Corporation
Buy38,400$7.76$298.0K BuyForm 4 ↗
Feb 27, 2026Boswerger Laura C. Holson
COO
NMFC
New Mountain Finance Corporation
Buy12,500$7.74$96.8K BuyForm 4 ↗
Sep 16, 2025Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy85,352$9.78$834.7K BuyForm 4 ↗
Sep 16, 2025Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy21,339$9.78$208.7K BuyForm 4 ↗
Sep 15, 2025Adam B. Weinstein
EVP, CAO and Director, Director
NMFC
New Mountain Finance Corporation
Buy49,750$10.03$499.0K BuyForm 4 ↗
Aug 11, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy4,000$10.22$40.9K BuyForm 4 ↗
Aug 11, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy4,000$10.26$41.0K BuyForm 4 ↗
Aug 11, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy18,000$10.23$184.1K BuyForm 4 ↗
Aug 7, 2025Kris Corbett
CFO and Treasurer
NMFC
New Mountain Finance Corporation
Buy750$10.14$7,605 BuyForm 4 ↗
Mar 7, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy5,000$11.30$56.5K BuyForm 4 ↗
Mar 6, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy5,000$11.32$56.6K BuyForm 4 ↗
Mar 5, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy5,000$11.31$56.5K BuyForm 4 ↗
Mar 4, 2025David Ogens
Director
NMFC
New Mountain Finance Corporation
Buy5,000$11.44$57.2K BuyForm 4 ↗
Dec 17, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy48,187$11.28$543.5K BuyForm 4 ↗
Dec 17, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy24,093$11.28$271.8K BuyForm 4 ↗
Dec 16, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy60,967$11.74$715.8K BuyForm 4 ↗
Dec 16, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy30,484$11.74$357.9K BuyForm 4 ↗
Dec 13, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy6,034$11.74$70.8K BuyForm 4 ↗
Dec 13, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy3,017$11.74$35.4K BuyForm 4 ↗
Dec 12, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy11,771$11.74$138.2K BuyForm 4 ↗
Dec 12, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy6$11.74$69.15 BuyForm 4 ↗
Dec 11, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy13,213$11.74$155.1K BuyForm 4 ↗
Dec 11, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy6,607$11.74$77.6K BuyForm 4 ↗
Dec 6, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy11,596$11.74$136.1K BuyForm 4 ↗
Dec 6, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy5,798$11.74$68.1K BuyForm 4 ↗
Dec 5, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy11,082$11.74$130.1K BuyForm 4 ↗
Dec 5, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy5,542$11.74$65.1K BuyForm 4 ↗
Dec 3, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy4,133$11.75$48.6K BuyForm 4 ↗
Dec 3, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy2,067$11.75$24.3K BuyForm 4 ↗
Nov 26, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy1,600$11.74$18.8K BuyForm 4 ↗
Nov 26, 2024Steven B. Klinsky
Director
NMFC
New Mountain Finance Corporation
Buy800$11.74$9,392 BuyForm 4 ↗

The newest 50 items, most recent first. Every row links to its original filing. Updated Nov 15, 2026, 6:27 PM EST.

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