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New Mountain Finance Corp

NMFCZ
Exchange
Nasdaq
SEC CIK
0001496099

No open-market purchases or sales by New Mountain Finance Corp insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Other share classesNMFC

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
Jun 16, 2026 (view filing)Jun 151 dayMalfettone John PDirectorSSale−77.5K$7.89−$611.5K−100.0%0 after
Mar 18, 2026 (view filing)Mar 171 dayWeinstein AdamEVP, CAO and DirectorPPurchase+12.9K$7.61+$98.2K+1.7%751.8K after
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 6, 2026 (view filing)Mar 51 dayKlinsky Steven BDirector, 10% OwnerPPurchase+237.9K$8.10+$1.93M+5.0%5.04M 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 4, 2026 (view filing)Mar 31 dayOgens DavidDirectorPPurchase+12.5K$7.87+$98.4K+5.5%241.6K 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 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 2, 2026 (view filing)Feb 273 daysBoswerger Laura HolsonCOOPPurchase+12.5K$7.74+$96.8K+18.2%81.0K after
Sep 18, 2025 (view filing)Sep 162 daysKlinsky Steven BDirectorPPurchase+106.7K$9.78+$1.04M+2.5%4.37M 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
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
Aug 11, 2025 (view filing)Aug 74 daysCorbett KrisCFO and TreasurerPPurchase+750$10.14+$7.61K+8.3%9.75K after
Mar 10, 2025 (view filing)Mar 6-74 daysOgens DavidDirectorPPurchase+10.0K$11.31+$113.1K+5.4%194.0K after2 lots
Mar 6, 2025 (view filing)Mar 4-52 daysOgens DavidDirectorPPurchase+10.0K$11.38+$113.8K+5.7%184.0K after2 lots
Dec 19, 2024 (view filing)Dec 172 daysKlinsky Steven BDirectorPPurchase+72.3K$11.28+$815.3K+1.7%4.29M after2 lots
Dec 17, 2024 (view filing)Dec 13-164 daysKlinsky Steven BDirectorPPurchase+100.5K$11.74+$1.18M+2.4%4.24M after4 lots
Dec 13, 2024 (view filing)Dec 11-122 daysKlinsky Steven BDirectorPPurchase+31.6K$11.74+$370.9K+0.8%4.17M after4 lots
Dec 9, 2024 (view filing)Dec 5-64 daysKlinsky Steven BDirectorPPurchase+34.0K$11.74+$399.4K+0.8%4.15M after4 lots
Dec 5, 2024 (view filing)Dec 32 daysKlinsky Steven BDirectorPPurchase+6.20K$11.75+$72.8K+0.2%4.12M after2 lots
Nov 29, 2024 (view filing)Nov 263 daysKlinsky Steven BDirectorPPurchase+2.40K$11.74+$28.2K+0.1%4.12M after2 lots
Nov 26, 2024 (view filing)Nov 224 daysKlinsky Steven BDirectorPPurchase+36.7K$11.71+$430.0K+0.9%4.12M after2 lots
Nov 22, 2024 (view filing)Nov 20-212 daysKlinsky Steven BDirectorPPurchase+89.0K$11.56+$1.03M+2.2%4.09M after4 lots
Nov 20, 2024 (view filing)Nov 18-192 daysKlinsky Steven BDirectorPPurchase+100.3K$11.58+$1.16M+2.5%4.03M after4 lots
Nov 18, 2024 (view filing)Nov 14-154 daysKlinsky Steven BDirectorPPurchase+97.0K$11.56+$1.12M+2.5%3.97M after4 lots
Nov 14, 2024 (view filing)Nov 12-132 daysKlinsky Steven BDirectorPPurchase+152.4K$11.53+$1.76M+4.1%3.86M after4 lots
Nov 12, 2024 (view filing)Nov 8-114 daysKlinsky Steven BDirectorPPurchase+191.6K$11.30+$2.17M+5.4%3.76M after4 lots
Nov 8, 2024 (view filing)Nov 6-72 daysKlinsky Steven BDirectorPPurchase+210.5K$10.93+$2.30M+6.1%3.67M after4 lots
Nov 8, 2024 (view filing)Nov 62 daysKline JohnCEO, President, and DirectorPPurchase+41.5K$10.92+$453.7K+13.4%351.8K after6 lots
Nov 6, 2024 (view filing)Nov 42 daysWeinstein AdamEVP, CAO and DirectorPPurchase+45.0K$10.87+$489.1K+8.9%552.5K after
Nov 6, 2024 (view filing)Nov 4-52 daysKlinsky Steven BDirectorPPurchase+173.7K$10.70+$1.86M+5.2%3.53M after4 lots
Nov 6, 2024 (view filing)Nov 42 daysCorbett KrisCFO and TreasurerPPurchase+2.50K$10.85+$27.1K+38.5%9.00K after
Aug 7, 2024 (view filing)Aug 52 daysCorbett KrisCFO and TreasurerPPurchase+6.50K$11.72+$76.2KNew position6.50K after
Jun 11, 2024 (view filing)Jun 74 daysOgens DavidDirectorPPurchase+3.50K$12.62+$44.2K+2.1%166.4K after
Apr 24, 2024 (view filing)Apr 222 daysKline JohnCEO, President, and DirectorSSale−1.24K$12.55−$15.5K−0.5%254.6K after2 lots
Aug 4, 2023 (view filing)Jul 278 daysLateHamwee RobertDirectorSSale−15$12.86−$192.90.0%549.4K after
May 15, 2023 (view filing)May 114 daysBoswerger Laura HolsonCOO and CFOPPurchase+15.0K$11.89+$178.0K+43.5%49.4K after3 lots
Mar 21, 2023 (view filing)Mar 174 daysKlinsky Steven BDirectorPPurchase+100.0K$11.74+$1.17M+1.3%7.82M after
Mar 17, 2023 (view filing)Mar 15-162 daysKlinsky Steven BDirectorPPurchase+200.0K$11.78+$2.35M+2.7%7.72M after2 lots
Mar 15, 2023 (view filing)Mar 13-142 daysKlinsky Steven BDirectorPPurchase+200.0K$11.83+$2.37M+2.7%7.52M after2 lots
Mar 15, 2023 (view filing)Mar 141 dayArnold Rome G. IIIDirectorPPurchase+10.0K$12.02+$120.2K+19.1%62.3K after
Mar 15, 2023 (view filing)Mar 141 dayStone JamesSection 16 OfficerPPurchase+11.0K$11.96+$131.5K+9.3%129.7K after2 lots
Mar 14, 2023 (view filing)Mar 104 daysOgens DavidDirectorPPurchase+5.40K$11.65+$62.9K+4.2%135.3K after
Mar 14, 2023 (view filing)Mar 104 daysKline JohnCEO, President, and DirectorPPurchase+8.20K$12.05+$98.8K+3.7%229.6K after4 lots
Dec 20, 2022 (view filing)Dec 164 daysArnold Rome G. IIIDirectorPPurchase+10.0K$12.05+$120.5K+24.3%51.2K after
Sep 8, 2022 (view filing)Sep 62 daysWeinstein AdamEVP, CAO and DirectorPPurchase+19.9K$12.89+$256.9K+5.3%395.6K after8 lots
Sep 7, 2022 (view filing)Sep 25 daysOgens DavidDirectorPPurchase+2.60K$12.92+$33.6K+2.2%123.5K after
Sep 6, 2022 (view filing)Sep 15 daysKlinsky Steven BDirectorPPurchase+16$12.90+$206.4New position16 after
Jun 17, 2022 (view filing)Jun 152 daysHamwee RobertCEO and DirectorPPurchase+20.0K$11.63+$232.5K+4.0%514.6K after17 lots