NMFC · Insider trading · 13F holders · Congress trades
New Mountain Finance Corp (NMFC)
Who is buying and selling NMFC: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 2
NMFC at a glance
- No open-market insider purchases or sales of NMFC were filed in the last 90 days.
- 9 13F filers hold NMFC among their 50 largest positions, worth $22.0M combined. The biggest bets by portfolio weight are Muzinich & Co., Inc. (2.0%), GraniteShares Advisors LLC (1.8%) and Dimension Capital Management LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- Members of Congress have disclosed 2 NMFC trades since 2014, 0 purchases and 2 sales in the past year; the latest was Alan S. Lowenthal (D-CA), selling $1K–15K on May 16, 2014.
- NMFC last closed at $6.98 on Oct 30, 2026.
NMFC insider trading
No open-market insider purchases or sales of NMFC were filed in the last 90 days.
Who owns NMFC? Hedge funds and superinvestors
9 13F filers hold NMFC among their 50 largest positions, worth $22.0M combined. The biggest bets by portfolio weight are Muzinich & Co., Inc. (2.0%), GraniteShares Advisors LLC (1.8%) and Dimension Capital Management LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Dimension Capital Management LLCHedge fund | 1.0% | $8.8M | 1,223,088 | +5.8% shares | Q2 2026 |
| Muzinich & Co., Inc.Hedge fund | 2.0% | $6.1M | 878,605 | +3.3% shares | Q3 2026 |
| GraniteShares Advisors LLCMutual fund manager | 1.8% | $2.7M | 387,410 | +27.7% shares | Q3 2026 |
| Tranquility Partners, LLCWealth manager | 0.7% | $2.0M | 290,807 | +2.3% shares | Q3 2026 |
| Cerberus Capital Management, L.P.Hedge fund | 0.1% | $1.0M | 145,000 | +0.0% shares | Q2 2026 |
| Privium Fund Management (UK) LtdAsset manager | 0.3% | $717K | 100,000 | New | Q2 2026 |
| nVerses Capital, LLCHedge fund | 0.6% | $367K | 51,130 | — | Q2 2026 |
| Smh Capital Advisors IncInstitutional asset manager | 0.7% | $174K | 25,169 | — | Q3 2026 |
| CenterStar Asset Management, LLCHedge fund | 0.3% | $169K | 24,400 | +0.0% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 5, Q2 2026: 4). Screen NMFC in the grand portfolio →
NMFC stock trades by members of Congress
Members of Congress have disclosed 2 NMFC trades since 2014, 0 purchases and 2 sales in the past year; the latest was Alan S. Lowenthal (D-CA), selling $1K–15K on May 16, 2014.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| May 5, 2015 | Alan S. LowenthalD-CA · House | Sale | $1K–15K | May 16, 2014 | -50.7% |
| May 31, 2014 | Alan S. LowenthalD-CA · House | Sale | $1K–15K | May 16, 2014 | -50.7% |
NMFC questions and answers
Are insiders buying NMFC stock?
No open-market insider purchases or sales of NMFC were filed in the last 90 days.
Which hedge funds own NMFC?
9 13F filers hold NMFC among their 50 largest positions, worth $22.0M combined. The biggest bets by portfolio weight are Muzinich & Co., Inc. (2.0%), GraniteShares Advisors LLC (1.8%) and Dimension Capital Management LLC (1.0%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded NMFC?
Members of Congress have disclosed 2 NMFC trades since 2014, 0 purchases and 2 sales in the past year; the latest was Alan S. Lowenthal (D-CA), selling $1K–15K on May 16, 2014.
Who is the largest holder of NMFC?
Among 13F filers, Dimension Capital Management LLC reports the largest NMFC position, $8.8M (1,223,088 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Muzinich & Co., Inc.'s: 2.0% of its portfolio.
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