Who
Steven B. Klinsky
Director and 10% owner
Company insider
Files Form 4 as: Director and 10% owner, New Mountain Finance; 10% owner, New Mountain Private Credit Fund; 10% owner, New Mountain Guardian IV BDC; 10% owner, New Mountain Guardian IV Income Fund; 10% owner, Avantor; 10% owner, Bellerophon Therapeutics; Director and 10% owner, New Mountain Finance Holdings; Director and 10% owner, Deltek.
In numbers
- Trades disclosed
- 180
- Buys
- 104
- Sells
- 1
- Bought
- $203.4M
- Sold
- $332.1M
- Companies
- 10
- Companies where not an officer
- 10
- First trade
- 22 Feb 2006
- Last trade
- 11 Mar 2026
- Last filed
- 12 Mar 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 11 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $741K92,080 at $8.05 | filing |
| 11 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.5M184,162 at $8.05 | filing |
| 11 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $741K92,080 at $8.05 | filing |
| 11 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.5M184,162 at $8.05 | filing |
| 10 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $600K74,586 at $8.05 | filing |
| 10 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.2M149,172 at $8.05 | filing |
| 10 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $600K74,586 at $8.05 | filing |
| 10 Mar 2026filed 12 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.2M149,172 at $8.05 | filing |
| 5 Mar 2026filed 6 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $642K79,291 at $8.10 | filing |
| 5 Mar 2026filed 6 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.3M158,582 at $8.10 | filing |
| 5 Mar 2026filed 6 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $642K79,291 at $8.10 | filing |
| 5 Mar 2026filed 6 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.3M158,582 at $8.10 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $509K62,301 at $8.17 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.0M124,604 at $8.17 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $509K62,301 at $8.17 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.0M124,604 at $8.17 | filing |
| 3 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $663K83,498 at $7.94 | filing |
| 3 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.3M166,997 at $7.94 | filing |
| 3 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $663K83,498 at $7.94 | filing |
| 3 Mar 2026filed 5 Mar 2026 | NMFC New Mountain FinanceFunds, Shells & SPACs | SEC FORM 4 Bought | $1.3M166,997 at $7.94 | filing |
News
New Mountain Finance (NASDAQ:NMFC) Sets New 52-Week Low – Here's WhyNMFC · dailypolitical.com · 21 Oct 2026Head to Head Analysis: New Mountain Finance (NASDAQ:NMFC) & Greenpro Capital (NASDAQ:GRNQ)NMFC · tickerreport.com · 15 Oct 2026
0 headlines in the last 90 days name Steven B. Klinsky; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.