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New Mountain Finance Corp

NMFC
Exchange
Nasdaq
SEC CIK
0001496099

No open-market purchases or sales by New Mountain Finance Corp insiders were filed in the last 90 days; 143 institutions reported holding it in 13F filings for Q2 2026, worth $200.9M in total; no superinvestor holds it.

Other share classesNMFCZ

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by New Mountain Finance Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for New Mountain Finance Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for New Mountain Finance Corp
NameTitleLast reported holdingLast filingFilings, past year
Kline John RCEO, President and Director389,685Sep 11, 20261
Malfettone John PDirector0Jun 16, 20261
Weinstein AdamEVP, CAO and Director751,756Mar 18, 20262
Klinsky Steven BDirector, 10% Owner5,370,858IndirectMar 12, 20264
Ogens DavidDirector241,556Mar 4, 20261
Boswerger Laura HolsonCOO81,030Mar 2, 20261
Corbett KrisCFO and Treasurer9,750IndirectAug 11, 20250
Kline JohnCEO, President, and Director351,783Nov 8, 20240
Hamwee RobertDirector549,373Aug 4, 20230
Stone JamesSection 16 Officer129,670Mar 15, 20230
Arnold Rome G. IIIDirector62,291Mar 15, 20230
Hartswell JosephCCO and Corporate Secretary10,143May 20, 20220
Kajee ShirazChief Financial Officer10,000May 18, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Mar 10, 2025 (view filing)Mar 6-74 daysOgens DavidDirectorPPurchase+10.0K$11.31+$113.1K+5.4%194.0K after2 lots
Aug 11, 2025 (view filing)Aug 74 daysCorbett KrisCFO and TreasurerPPurchase+750$10.14+$7.61K+8.3%9.75K after
Aug 12, 2025 (view filing)Aug 111 dayOgens DavidDirectorPPurchase+18.0K$10.23+$184.1K+9.1%216.2K after
Aug 12, 2025 (view filing)Aug 111 dayOgens DavidDirectorPPurchase+8.00K$10.24+$81.9K+100.0%16.0K after2 lots
Sep 16, 2025 (view filing)Sep 151 dayWeinstein AdamEVP, CAO and DirectorPPurchase+49.8K$10.03+$499.0K+8.3%652.5K after
Sep 18, 2025 (view filing)Sep 162 daysKlinsky Steven BDirectorPPurchase+106.7K$9.78+$1.04M+2.5%4.37M after2 lots
Mar 2, 2026 (view filing)Feb 273 daysBoswerger Laura HolsonCOOPPurchase+12.5K$7.74+$96.8K+18.2%81.0K after
Mar 3, 2026 (view filing)Feb 27-Mar 24 daysWeinstein AdamEVP, CAO and DirectorPPurchase+41.7K$7.76+$323.5K+6.0%738.9K after2 lots
Mar 3, 2026 (view filing)Feb 27-Mar 24 daysKlinsky Steven BDirectorPPurchase+324.7K$7.75+$2.52M+7.6%4.59M after4 lots
Mar 4, 2026 (view filing)Mar 31 dayOgens DavidDirectorPPurchase+12.5K$7.87+$98.4K+5.5%241.6K after2 lots
Mar 5, 2026 (view filing)Mar 3-42 daysKlinsky Steven BDirector, 10% OwnerPPurchase+437.4K$8.04+$3.52M+9.8%4.88M after4 lots
Mar 6, 2026 (view filing)Mar 51 dayKlinsky Steven BDirector, 10% OwnerPPurchase+237.9K$8.10+$1.93M+5.0%5.04M after2 lots
Mar 12, 2026 (view filing)Mar 10-112 daysKlinsky Steven BDirector, 10% OwnerPPurchase+500.0K$8.05+$4.03M+10.3%5.37M after4 lots
Mar 18, 2026 (view filing)Mar 171 dayWeinstein AdamEVP, CAO and DirectorPPurchase+12.9K$7.61+$98.2K+1.7%751.8K after
Jun 16, 2026 (view filing)Jun 151 dayMalfettone John PDirectorSSale−77.5K$7.89−$611.5K−100.0%0 after