New Mountain Finance Corporation
US ˙ NasdaqGS ˙ US6475511001

SecurityNMFC / New Mountain Finance Corporation
InstitutionTwo Sigma Investments, Lp
ManagerJohn Overdeck, David Siegel
Latest Disclosed Ownership836,457 shares
Latest Disclosed Value $ 6,490,906
Two Sigma Investments, Lp reports 42.59% increase in ownership of NMFC / New Mountain Finance Corporation

On May 15, 2026 - Two Sigma Investments, Lp filed a 13F-HR form disclosing ownership of 836,457 shares of New Mountain Finance Corporation (US:NMFC) valued at $6,490,906 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 586,617 shares of New Mountain Finance Corporation. This represents a change in shares of 42.59% during the quarter. The current value of the position is $6,549,458 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F NEW MTN FIN COM 647551100 836,457 249,840 42.59 6,491 20.14 0.0052
2026-02-17 2025-12-31 13F NEW MTN FIN COM 647551100 586,617 141,522 31.80 5,403 25.92 0.0076
2025-11-14 2025-09-30 13F NEW MTN FIN COM 647551100 445,095 -302,878 -40.49 4,291 -45.63 0.0064
2025-08-14 2025-06-30 13F NEW MTN FIN COM 647551100 747,973 -12,072 -1.59 7,891 -5.87 0.0140
2025-05-15 2025-03-31 13F NEW MTN FIN COM 647551100 760,045 81,149 11.95 8,383 9.67 0.0179
2025-02-14 2024-12-31 13F NEW MTN FIN COM 647551100 678,896 -74,078 -9.84 7,644 -15.25 0.0167
2024-11-14 2024-09-30 13F NEW MTN FIN COM 647551100 752,974 -124,438 -14.18 9,021 -16.01 0.0198
2024-08-14 2024-06-30 13F NEW MTN FIN COM 647551100 877,412 -309,839 -26.10 10,740 -28.61 0.0245
2024-05-15 2024-03-31 13F NEW MTN FIN COM 647551100 1,187,251 326,566 37.94 15,042 37.41 0.0353
2024-02-14 2023-12-31 13F NEW MTN FIN COM 647551100 860,685 335,100 63.76 10,948 60.84 0.0251
2023-11-14 2023-09-30 13F NEW MTN FIN COM 647551100 525,585 93,599 21.67 6,806 26.67 0.0183
2023-08-14 2023-06-30 13F NEW MTN FIN COM 647551100 431,986 28,474 7.06 5,374 9.43 0.0135
2023-05-15 2023-03-31 13F NEW MTN FIN COM 647551100 403,512 185,226 84.85 4,911 81.85 0.0140
2023-02-14 2022-12-31 13F NEW MTN FIN COM 647551100 218,286 -103,340 -32.13 2,700 -27.18 0.0085
2022-11-14 2022-09-30 13F NEW MTN FIN COM 647551100 321,626 -155,074 -32.53 3,708 -34.68 0.0126
2022-08-15 2022-06-30 13F NEW MTN FIN COM 647551100 476,700 71,129 17.54 5,677 1.07 0.0187
2022-05-16 2022-03-31 13F NEW MTN FIN COM 647551100 405,571 85,608 26.76 5,617 28.15 0.0166
2022-02-14 2021-12-31 13F NEW MTN FIN COM 647551100 319,963 -58,158 -15.38 4,383 -12.91 0.0094
2021-11-15 2021-09-30 13F NEW MTN FIN COM 647551100 378,121 189,566 100.54 5,033 102.70 0.0112
2021-08-16 2021-06-30 13F NEW MTN FIN COM 647551100 188,555 77,258 69.42 2,483 79.93 0.0056
2021-05-17 2021-03-31 13F NEW MTN FIN COM 647551100 111,297 -223,818 -66.79 1,380 -63.75 0.0036
2021-02-16 2020-12-31 13F NEW MTN FIN COM 647551100 335,115 164,853 96.82 3,807 133.85 0.0109
2020-11-16 2020-09-30 13F NEW MTN FIN COM 647551100 170,262 16,309 10.59 1,628 13.85 0.0058
2020-08-14 2020-06-30 13F NEW MTN FIN COM 647551100 153,953 47,563 44.71 1,430 97.79 0.0071
2020-05-15 2020-03-31 13F NEW MTN FIN COM 647551100 106,390 -101,711 -48.88 723 -74.71 0.0059
2020-02-14 2019-12-31 13F NEW MTN FIN COM 647551100 208,101 -113,898 -35.37 2,859 -34.86 0.0086
2019-11-14 2019-09-30 13F NEW MTN FIN COM 647551100 321,999 156,905 95.04 4,389 90.33 0.0148
2019-08-14 2019-06-30 13F NEW MTN FIN COM 647551100 165,094 -4,747 -2.79 2,306 0.04 0.0077
2019-05-15 2019-03-31 13F NEW MTN FIN COM 647551100 169,841 88,977 110.03 2,305 126.65 0.0075
2019-02-14 2018-12-31 13F NEW MTN FIN COM 647551100 80,864 4,802 6.31 1,017 -0.97 0.0040
2018-11-14 2018-09-30 13F NEW MTN FIN COM 647551100 76,062 -65,355 -46.21 1,027 -46.59 0.0028
2018-08-14 2018-06-30 13F NEW MTN FIN COM 647551100 141,417 -39,114 -21.67 1,923 -19.00 0.0057
2018-05-15 2018-03-31 13F NEW MTN FIN COM 647551100 180,531 -112,268 -38.34 2,374 -40.16 0.0079
2018-02-14 2017-12-31 13F NEW MTN FIN COM 647551100 292,799 292,799 62.19 3,967 67.10 0.0129
2017-11-14 2017-09-30 13F NEW MTN FIN COM 647551100 0 -14,518 -100.00 0 -100.00
2017-08-14 2017-06-30 13F NEW MTN FIN COM 647551100 14,518 -59,831 -80.47 211 -80.96 0.0008
2017-05-15 2017-03-31 13F NEW MTN FIN COM 647551100 74,349 -196,336 -72.53 1,108 -70.97 0.0037
2017-02-14 2016-12-31 13F NEW MTN FIN COM 647551100 270,685 212,408 364.48 3,817 375.94 0.0146
2016-11-14 2016-09-30 13F NEW MTN FIN COM 647551100 58,277 58,277 -78.47 802 -78.99 0.0029
2016-08-15 2016-06-30 13F NEW MTN FIN COM 647551100 0 -29,432 -100.00 0 -100.00
2016-05-16 2016-03-31 13F NEW MTN FIN COM 647551100 29,432 -171,537 -85.35 372 -85.79 0.0018
2016-02-16 2015-12-31 13F NEW MTN FIN COM 647551100 200,969 161,528 409.54 2,617 388.25 0.0126
2015-11-16 2015-09-30 13F NEW MTN FIN COM 647551100 39,441 39,441 -80.37 536 -79.52 0.0027
2015-05-15 2015-03-31 13F NEW MTN FIN COM 647551100 0 -56,324 -100.00 0 -100.00
2016-02-09 2014-12-31 13F/A-1 NEW MTN FIN COM 647551100 56,324 23,791 73.13 841 75.94 0.0048
2015-02-17 2014-12-31 13F NEW MTN FIN COM 647551100 56,324 841
2016-02-09 2014-09-30 13F/A-1 NEW MTN FIN COM 647551100 32,533 -182,429 -84.87 478 -85.03 0.0022
2014-11-14 2014-09-30 13F NEW MTN FIN COM 647551100 32,533 478
2016-02-09 2014-06-30 13F/A-1 NEW MTN FIN COM 647551100 214,962 192,271 847.34 3,194 867.88 0.0151
2014-08-14 2014-06-30 13F NEW MTN FIN COM 647551100 214,962 3,195
2014-05-15 2014-03-31 13F NEW MTN FIN COM 647551100 22,691 -65,129 -74.16 330 -75.02 0.0018
2014-02-14 2013-12-31 13F NEW MTN FIN COM 647551100 87,820 23,875 37.34 1,321 43.43 0.0073
2013-11-14 2013-09-30 13F NEW MTN FIN COM 647551100 63,945 63,945 921 0.0059
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.