New Mountain Finance (NMFC)
New Mountain Finance on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq.
3.4M
Short interest
settlement 2026-10-15
4.7
Days to cover
-1.4 days vs prior
35.6%
Short share of volume
2026-11-02
424
Fails to deliver
settlement 2026-10-14
Tue 23 Feb
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in NMFC is 3,364,409 shares, up 120,629 shares over the last month. Over the last 48 readings it ranged from 987,066 shares (31 March 2025) to 3,980,477 shares (30 April 2026). At the reported average volume of 722K shares a day that is 4.7 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/nmfc" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 3,364,409 | +2.1% | 721,881 | 4.66 |
| 2026-09-30 | 3,296,214 | +1.6% | 547,170 | 6.02 |
| 2026-09-15 | 3,243,780 | +8.4% | 435,209 | 7.45 |
| 2026-08-31 | 2,993,138 | +0.4% | 326,061 | 9.18 |
| 2026-08-14 | 2,981,928 | -9.6% | 662,726 | 4.50 |
| 2026-07-31 | 3,300,189 | -0.6% | 496,288 | 6.65 |
| 2026-07-15 | 3,318,433 | +2.4% | 659,307 | 5.03 |
| 2026-06-30 | 3,240,363 | -18.6% | 976,466 | 3.32 |
| 2026-06-15 | 3,979,016 | +3.1% | 501,248 | 7.94 |
| 2026-05-29 | 3,860,578 | +5.9% | 470,873 | 8.20 |
| 2026-05-15 | 3,646,980 | -8.4% | 586,891 | 6.21 |
| 2026-04-30 | 3,980,477 | +32.7% | 629,072 | 6.33 |
| 2026-04-15 | 2,998,636 | -9.6% | 858,096 | 3.49 |
| 2026-03-31 | 3,318,030 | +42.5% | 1,335,543 | 2.48 |
| 2026-03-13 | 2,328,255 | +19.6% | 1,689,409 | 1.38 |
| 2026-02-27 | 1,946,797 | -0.7% | 1,243,548 | 1.57 |
| 2026-02-13 | 1,961,114 | +4.1% | 1,562,984 | 1.25 |
| 2026-01-30 | 1,884,679 | +18.8% | 869,486 | 2.17 |
| 2026-01-15 | 1,587,157 | +11.3% | 567,206 | 2.80 |
| 2025-12-31 | 1,426,575 | +8.9% | 1,072,159 | 1.33 |
| 2025-12-15 | 1,309,742 | -5.2% | 506,687 | 2.58 |
| 2025-11-28 | 1,381,857 | -7.5% | 522,305 | 2.65 |
| 2025-11-14 | 1,493,628 | -4.7% | 656,497 | 2.28 |
| 2025-10-31 | 1,567,938 | +27.7% | 578,398 | 2.71 |
| 2025-10-15 | 1,227,401 | -1.8% | 942,098 | 1.30 |
| 2025-09-30 | 1,249,705 | +0.8% | 940,795 | 1.33 |
| 2025-09-15 | 1,239,820 | +7.0% | 514,727 | 2.41 |
| 2025-08-29 | 1,158,997 | -10.2% | 406,658 | 2.85 |
| 2025-08-15 | 1,290,041 | -6.0% | 542,648 | 2.38 |
| 2025-07-31 | 1,371,840 | +1.1% | 311,200 | 4.41 |
| 2025-07-15 | 1,357,561 | -5.0% | 389,121 | 3.49 |
| 2025-06-30 | 1,428,746 | -4.8% | 562,707 | 2.54 |
| 2025-06-13 | 1,500,432 | +14.5% | 389,319 | 3.85 |
| 2025-05-30 | 1,310,934 | -19.8% | 300,342 | 4.36 |
| 2025-05-15 | 1,634,146 | +12.3% | 464,968 | 3.51 |
| 2025-04-30 | 1,454,805 | -0.8% | 432,846 | 3.36 |
| 2025-04-15 | 1,466,817 | +48.6% | 1,005,541 | 1.46 |
| 2025-03-31 | 987,066 | -14.0% | 447,493 | 2.21 |
| 2025-03-14 | 1,148,221 | +16.3% | 738,733 | 1.55 |
| 2025-02-28 | 987,752 | -28.9% | 449,145 | 2.20 |
| 2025-02-14 | 1,388,920 | -0.1% | 286,033 | 4.86 |
| 2025-01-31 | 1,390,914 | -5.4% | 311,426 | 4.47 |
| 2025-01-15 | 1,470,637 | +0.1% | 392,714 | 3.74 |
| 2024-12-31 | 1,468,661 | -3.1% | 815,964 | 1.80 |
| 2024-12-13 | 1,516,312 | -7.0% | 421,131 | 3.60 |
| 2024-11-29 | 1,630,501 | +1.1% | 339,321 | 4.81 |
| 2024-11-15 | 1,613,142 | +5.5% | 864,565 | 1.87 |
| 2024-10-31 | 1,528,597 | -11.0% | 493,410 | 3.10 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of NMFC volume is 35.6%, down 13.6 points over the last five sessions. Over the last 30 readings it ranged from 33.9% (12 October 2026) to 83.8% (30 September 2026). The latest reading sits at the bottom of that range. The latest reading is 18.1 points below the 30-session average of 53.7%, on 296K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 105K | 296K | 35.6% | 0 |
| 2026-10-30 | 139K | 262K | 53.0% | 1 |
| 2026-10-29 | 106K | 272K | 38.8% | 103 |
| 2026-10-28 | 98K | 192K | 51.0% | 0 |
| 2026-10-27 | 160K | 321K | 49.7% | 0 |
| 2026-10-26 | 63K | 127K | 49.1% | 628 |
| 2026-10-23 | 63K | 119K | 52.6% | 0 |
| 2026-10-22 | 76K | 168K | 45.1% | 0 |
| 2026-10-21 | 129K | 255K | 50.6% | 1,119 |
| 2026-10-20 | 210K | 334K | 63.0% | 0 |
| 2026-10-19 | 232K | 425K | 54.6% | 469 |
| 2026-10-16 | 62K | 124K | 49.9% | 0 |
| 2026-10-15 | 462K | 701K | 66.0% | 0 |
| 2026-10-14 | 133K | 255K | 52.0% | 1,000 |
| 2026-10-13 | 137K | 299K | 45.8% | 1,250 |
| 2026-10-12 | 73K | 216K | 33.9% | 0 |
| 2026-10-09 | 71K | 157K | 45.1% | 0 |
| 2026-10-08 | 58K | 158K | 36.7% | 1,600 |
| 2026-10-07 | 103K | 238K | 43.4% | 0 |
| 2026-10-06 | 118K | 331K | 35.5% | 6,866 |
| 2026-10-05 | 134K | 348K | 38.4% | 8,101 |
| 2026-10-02 | 322K | 461K | 69.9% | 99 |
| 2026-10-01 | 296K | 410K | 72.2% | 0 |
| 2026-09-30 | 311K | 371K | 83.8% | 29 |
| 2026-09-29 | 151K | 201K | 75.3% | 0 |
| 2026-09-28 | 109K | 160K | 68.0% | 4,790 |
| 2026-09-25 | 83K | 124K | 66.9% | 0 |
| 2026-09-24 | 168K | 224K | 75.1% | 0 |
| 2026-09-23 | 85K | 133K | 64.0% | 0 |
| 2026-09-22 | 110K | 236K | 46.6% | 1,026 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in NMFC is 424 shares, down 9,041 shares over the last settlement date. Over the last 30 readings it ranged from 35 shares (7 October 2026) to 35,000 shares (10 September 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 424 | $6.71 | $3K |
| 2026-10-13 | 9,465 | $6.74 | $64K |
| 2026-10-09 | 4,501 | $6.81 | $31K |
| 2026-10-08 | 147 | $6.74 | $991 |
| 2026-10-07 | 35 | $6.84 | $239 |
| 2026-10-06 | 862 | $6.85 | $6K |
| 2026-10-05 | 14,783 | $6.94 | $103K |
| 2026-10-02 | 12,794 | $7.03 | $90K |
| 2026-10-01 | 10,135 | $6.92 | $70K |
| 2026-09-25 | 10,122 | $7.01 | $71K |
| 2026-09-21 | 13,525 | $6.99 | $95K |
| 2026-09-16 | 2,683 | $7.22 | $19K |
| 2026-09-15 | 24,754 | $7.25 | $179K |
| 2026-09-14 | 822 | $7.24 | $6K |
| 2026-09-11 | 18,393 | $7.23 | $133K |
| 2026-09-10 | 35,000 | $7.30 | $256K |
| 2026-09-08 | 731 | $7.48 | $5K |
| 2026-09-04 | 443 | $7.47 | $3K |
| 2026-08-31 | 20,979 | $7.54 | $158K |
| 2026-08-20 | 1,378 | $7.59 | $10K |
| 2026-08-19 | 39 | $7.45 | $291 |
| 2026-08-13 | 5,839 | $7.71 | $45K |
| 2026-08-11 | 1,869 | $7.69 | $14K |
| 2026-08-10 | 20,535 | $7.75 | $159K |
| 2026-08-07 | 33,376 | $7.65 | $255K |
| 2026-08-05 | 6,602 | $7.48 | $49K |
| 2026-08-04 | 11,478 | $7.23 | $83K |
| 2026-08-03 | 18,381 | $6.89 | $127K |
| 2026-07-31 | 7,153 | $6.91 | $49K |
| 2026-07-30 | 1,978 | $6.92 | $14K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for NMFC in the last 90 days. The most recent filings are listed below. Latest filing: Malfettone John P (Director) on 2026-06-15.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | Malfettone John P | Director | Sell | 78K | $7.89 | $611K | 0 |
| 2026-06-10 | KLINE JOHN R | CEO, President and Director | Inheritance | 2K | $0.00 | $0 | 390K |
| 2026-03-17 | Weinstein Adam B. | EVP, CAO and Director | Buy | 13K | $7.61 | $98K | 752K |
| 2026-03-11 | KLINSKY STEVEN B | Director, 10% owner | Buy | 184K | $8.05 | $1.5M | 5.4M |
| 2026-03-11 | KLINSKY STEVEN B | Director, 10% owner | Buy | 92K | $8.05 | $741K | 1.5M |
| 2026-03-10 | KLINSKY STEVEN B | Director, 10% owner | Buy | 149K | $8.05 | $1.2M | 5.2M |
| 2026-03-10 | KLINSKY STEVEN B | Director, 10% owner | Buy | 75K | $8.05 | $600K | 1.4M |
| 2026-03-05 | KLINSKY STEVEN B | Director, 10% owner | Buy | 159K | $8.10 | $1.3M | 5.0M |
| 2026-03-05 | KLINSKY STEVEN B | Director, 10% owner | Buy | 79K | $8.10 | $642K | 1.3M |
| 2026-03-04 | KLINSKY STEVEN B | Director, 10% owner | Buy | 125K | $8.17 | $1.0M | 4.9M |
| 2026-03-04 | KLINSKY STEVEN B | Director, 10% owner | Buy | 62K | $8.17 | $509K | 1.2M |
| 2026-03-03 | Ogens David | Director | Buy | 2K | $7.86 | $19K | 242K |
| 2026-03-03 | Ogens David | Director | Buy | 10K | $7.87 | $79K | 239K |
| 2026-03-03 | KLINSKY STEVEN B | Director, 10% owner | Buy | 167K | $7.94 | $1.3M | 4.8M |
| 2026-03-03 | KLINSKY STEVEN B | Director, 10% owner | Buy | 83K | $7.94 | $663K | 1.2M |
| 2026-03-02 | Weinstein Adam B. | EVP, CAO and Director | Buy | 3K | $7.73 | $26K | 739K |
| 2026-03-02 | KLINSKY STEVEN B | Director | Buy | 124K | $7.79 | $969K | 4.6M |
| 2026-03-02 | KLINSKY STEVEN B | Director | Buy | 62K | $7.79 | $485K | 1.1M |
| 2026-02-27 | Boswerger Laura C. Holson | COO | Buy | 13K | $7.74 | $97K | 81K |
| 2026-02-27 | Weinstein Adam B. | EVP, CAO and Director | Buy | 38K | $7.76 | $298K | 736K |
| 2026-02-27 | KLINSKY STEVEN B | Director | Buy | 92K | $7.69 | $708K | 4.5M |
| 2026-02-27 | KLINSKY STEVEN B | Director | Buy | 46K | $7.69 | $354K | 1.0M |
| 2025-09-16 | KLINSKY STEVEN B | Director | Buy | 85K | $9.78 | $835K | 4.4M |
| 2025-09-16 | KLINSKY STEVEN B | Director | Buy | 21K | $9.78 | $209K | 965K |
| 2025-09-15 | Weinstein Adam B. | EVP, CAO and Director | Buy | 50K | $10.03 | $499K | 652K |
| 2025-08-11 | Ogens David | Director | Buy | 4K | $10.22 | $41K | 16K |
| 2025-08-11 | Ogens David | Director | Buy | 4K | $10.26 | $41K | 12K |
| 2025-08-11 | Ogens David | Director | Buy | 18K | $10.23 | $184K | 216K |
| 2025-08-07 | Corbett Kris | CFO and Treasurer | Buy | 750 | $10.14 | $8K | 10K |
| 2025-03-07 | Ogens David | Director | Buy | 5K | $11.30 | $57K | 194K |
| 2025-03-06 | Ogens David | Director | Buy | 5K | $11.32 | $57K | 189K |
| 2025-03-05 | Ogens David | Director | Buy | 5K | $11.31 | $57K | 184K |
| 2025-03-04 | Ogens David | Director | Buy | 5K | $11.44 | $57K | 179K |
| 2024-12-17 | KLINSKY STEVEN B | Director | Buy | 24K | $11.28 | $272K | 944K |
| 2024-12-17 | KLINSKY STEVEN B | Director | Buy | 48K | $11.28 | $544K | 4.3M |
| 2024-12-16 | KLINSKY STEVEN B | Director | Buy | 61K | $11.74 | $716K | 4.2M |
| 2024-12-16 | KLINSKY STEVEN B | Director | Buy | 30K | $11.74 | $358K | 920K |
| 2024-12-13 | KLINSKY STEVEN B | Director | Buy | 6K | $11.74 | $71K | 4.2M |
| 2024-12-13 | KLINSKY STEVEN B | Director | Buy | 3K | $11.74 | $35K | 889K |
| 2024-12-12 | KLINSKY STEVEN B | Director | Buy | 6 | $11.74 | $69 | 886K |
| 2024-12-12 | KLINSKY STEVEN B | Director | Buy | 12K | $11.74 | $138K | 4.2M |
| 2024-12-11 | KLINSKY STEVEN B | Director | Buy | 7K | $11.74 | $78K | 880K |
| 2024-12-11 | KLINSKY STEVEN B | Director | Buy | 13K | $11.74 | $155K | 4.2M |
| 2024-12-06 | KLINSKY STEVEN B | Director | Buy | 12K | $11.74 | $136K | 4.1M |
| 2024-12-06 | KLINSKY STEVEN B | Director | Buy | 6K | $11.74 | $68K | 874K |
| 2024-12-05 | KLINSKY STEVEN B | Director | Buy | 11K | $11.74 | $130K | 4.1M |
| 2024-12-05 | KLINSKY STEVEN B | Director | Buy | 6K | $11.74 | $65K | 868K |
| 2024-12-03 | KLINSKY STEVEN B | Director | Buy | 2K | $11.75 | $24K | 862K |
| 2024-12-03 | KLINSKY STEVEN B | Director | Buy | 4K | $11.75 | $49K | 4.1M |
| 2024-11-26 | KLINSKY STEVEN B | Director | Buy | 2K | $11.74 | $19K | 4.1M |
| 2024-11-26 | KLINSKY STEVEN B | Director | Buy | 800 | $11.74 | $9K | 860K |
| 2024-11-22 | KLINSKY STEVEN B | Director | Buy | 12K | $11.71 | $143K | 859K |
| 2024-11-22 | KLINSKY STEVEN B | Director | Buy | 24K | $11.71 | $287K | 4.1M |
| 2024-11-21 | KLINSKY STEVEN B | Director | Buy | 18K | $11.59 | $209K | 847K |
| 2024-11-21 | KLINSKY STEVEN B | Director | Buy | 36K | $11.59 | $419K | 4.1M |
| 2024-11-20 | KLINSKY STEVEN B | Director | Buy | 12K | $11.51 | $134K | 829K |
| 2024-11-20 | KLINSKY STEVEN B | Director | Buy | 23K | $11.51 | $268K | 4.1M |
| 2024-11-19 | KLINSKY STEVEN B | Director | Buy | 18K | $11.63 | $212K | 818K |
| 2024-11-19 | KLINSKY STEVEN B | Director | Buy | 37K | $11.63 | $425K | 4.0M |
| 2024-11-18 | KLINSKY STEVEN B | Director | Buy | 15K | $11.52 | $175K | 799K |
| 2024-11-18 | KLINSKY STEVEN B | Director | Buy | 30K | $11.52 | $349K | 4.0M |
| 2024-11-15 | KLINSKY STEVEN B | Director | Buy | 35K | $11.56 | $399K | 4.0M |
| 2024-11-15 | KLINSKY STEVEN B | Director | Buy | 17K | $11.56 | $199K | 784K |
| 2024-11-14 | KLINSKY STEVEN B | Director | Buy | 30K | $11.55 | $348K | 3.9M |
| 2024-11-14 | KLINSKY STEVEN B | Director | Buy | 15K | $11.55 | $174K | 767K |
| 2024-11-13 | KLINSKY STEVEN B | Director | Buy | 63K | $11.60 | $736K | 3.9M |
| 2024-11-13 | KLINSKY STEVEN B | Director | Buy | 32K | $11.60 | $368K | 791K |
| 2024-11-12 | KLINSKY STEVEN B | Director | Buy | 19K | $11.41 | $217K | 759K |
| 2024-11-12 | KLINSKY STEVEN B | Director | Buy | 38K | $11.41 | $435K | 3.8M |
| 2024-11-11 | KLINSKY STEVEN B | Director | Buy | 50K | $11.36 | $567K | 3.8M |
| 2024-11-11 | KLINSKY STEVEN B | Director | Buy | 25K | $11.36 | $283K | 740K |
| 2024-11-08 | KLINSKY STEVEN B | Director | Buy | 78K | $11.26 | $877K | 715K |
| 2024-11-08 | KLINSKY STEVEN B | Director | Buy | 39K | $11.26 | $438K | 3.7M |
| 2024-11-07 | KLINSKY STEVEN B | Director | Buy | 20K | $11.09 | $221K | 637K |
| 2024-11-07 | KLINSKY STEVEN B | Director | Buy | 40K | $11.09 | $443K | 3.7M |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 2K | $10.93 | $26K | 315K |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 6K | $10.91 | $61K | 352K |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 2K | $10.92 | $22K | 312K |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 30K | $10.92 | $324K | 344K |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 2K | $10.93 | $17K | 346K |
| 2024-11-06 | Kline John | CEO, President, and Director | Buy | 300 | $10.91 | $3K | 345K |
| 2024-11-06 | KLINSKY STEVEN B | Director | Buy | 100K | $10.87 | $1.1M | 3.6M |
| 2024-11-06 | KLINSKY STEVEN B | Director | Buy | 50K | $10.87 | $546K | 617K |
| 2024-11-05 | KLINSKY STEVEN B | Director | Buy | 47K | $10.68 | $499K | 567K |
| 2024-11-05 | KLINSKY STEVEN B | Director | Buy | 93K | $10.68 | $997K | 3.5M |
| 2024-11-04 | Corbett Kris | CFO and Treasurer | Buy | 3K | $10.85 | $27K | 9K |
| 2024-11-04 | KLINSKY STEVEN B | Director | Buy | 22K | $10.80 | $242K | 3.4M |
| 2024-11-04 | KLINSKY STEVEN B | Director | Buy | 11K | $10.80 | $121K | 520K |
| 2024-11-04 | Weinstein Adam B. | EVP, CAO and Director | Buy | 45K | $10.87 | $489K | 553K |
| 2024-08-05 | Corbett Kris | CFO and Treasurer | Buy | 7K | $11.72 | $76K | 7K |
| 2024-06-07 | Ogens David | Director | Buy | 4K | $12.62 | $44K | 166K |
| 2024-04-22 | Kline John | CEO, President, and Director | Sell | 9 | $12.56 | $113 | 256K |
| 2024-04-22 | Kline John | CEO, President, and Director | Sell | 1K | $12.55 | $15K | 255K |
| 2023-07-27 | HAMWEE ROBERT | Director | Sell | 15 | $12.86 | $193 | 549K |
| 2023-05-11 | Boswerger Laura Holson | COO and CFO | Buy | 5K | $11.87 | $59K | 49K |
| 2023-05-11 | Boswerger Laura Holson | COO and CFO | Buy | 5K | $11.89 | $59K | 39K |
| 2023-05-11 | Boswerger Laura Holson | COO and CFO | Buy | 5K | $11.90 | $60K | 44K |
| 2023-03-17 | KLINSKY STEVEN B | Director | Buy | 100K | $11.74 | $1.2M | 7.8M |
| 2023-03-16 | KLINSKY STEVEN B | Director | Buy | 100K | $11.72 | $1.2M | 7.7M |
| 2023-03-15 | KLINSKY STEVEN B | Director | Buy | 100K | $11.83 | $1.2M | 7.6M |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of NMFC in their latest filing, all on Schedule 13D (active intent). The largest reported stake is KLINSKY STEVEN B at 12.5% of the class (12,330,154 shares), filed 2026-03-12 for an event on 2026-03-10.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-03-12 | 13D/Ano. 15 | KLINSKY STEVEN Bindividual | 12.3M | 12.5% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | STEVEN B. KLINSKY 2024 REVOCABLE TRUST (2024 TRUST 1)other entity | 5.4M | 5.5% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | STEVEN B. KLINSKY 2024 REVOCABLE TRUST (2024 TRUST 2)other entity | 3.5M | 3.5% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | STEVEN B. KLINSKY 2008 LONG TERM TRUSTother entity | 1.5M | 1.5% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | STEVEN B. KLINSKY NON-GST EXEMPT TRUSTother entity | 1.0M | 1.0% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | STEVEN B. KLINSKY 2024 REVOCABLE TRUST (2024 TRUST 3)other entity | 855K | 0.9% | 2026-03-10 |
| 2026-03-12 | 13D/Ano. 15 | Weinstein Adam B.individual | 739K | 0.8% | 2026-03-10 |
13F holders
Tracked managers holding NMFC at their latest 13F. JSON4 of the 30 tracked managers held NMFC at their latest 13F, $8.5M in total at quarter-end prices. Two Sigma Investments is the largest at $5.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 707K | $5.1M | 0.00% | -129K |
| D. E. Shaw & Co. | 2026-06-30 | 247K | $1.8M | 0.00% | -100K |
| Millennium Management | 2026-06-30 | 125K | $893K | 0.00% | +43K |
| Citadel Advisors | 2026-06-30 | 103K | $737K | 0.00% | +68K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
New Mountain Finance in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows New Mountain Finance (NMFC), SEC CIK 1496099, listed on Nasdaq. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-03-12.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-11-02.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-06-15.JSON and CSV
- Company record
- EDGAR filing index for CIK 1496099Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of NMFC is sold short?
3,364,409 shares were held short at the 2026-10-15 settlement, 4.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is NMFC's daily short volume?
On 2026-11-02, 105,137 of the 295,520 NMFC shares reported to FINRA were sold short, 35.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NMFC have fails to deliver?
The SEC's latest file shows 424 NMFC shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are NMFC insiders buying or selling?
No open-market insider trades were reported for NMFC in the last 90 days. The most recent filings are listed below. Latest filing: Malfettone John P (Director) on 2026-06-15.
Who owns 5% or more of NMFC?
2 holders report 5% or more of NMFC in their latest filing, all on Schedule 13D (active intent). The largest reported stake is KLINSKY STEVEN B at 12.5% of the class (12,330,154 shares), filed 2026-03-12 for an event on 2026-03-10.
Which tracked 13F managers own NMFC?
4 of the 30 tracked 13F managers held NMFC shares at their latest filing, $8.5M in all. The largest: Two Sigma Investments (707K shares, $5.1M), D. E. Shaw & Co. (247K shares, $1.8M), Izzy Englander's Millennium Management (125K shares, $893K), Ken Griffin's Citadel Advisors (103K shares, $737K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.