New Mountain Finance Corporation
US ˙ NasdaqGS ˙ US6475511001

SecurityNMFC / New Mountain Finance Corporation
InstitutionTranquility Partners, LLC
Latest Disclosed Ownership316,752 shares
Latest Disclosed Value $ 2,457,996
Tranquility Partners, LLC reports 18.16% increase in ownership of NMFC / New Mountain Finance Corporation

On April 20, 2026 - Tranquility Partners, LLC filed a 13F-HR form disclosing ownership of 316,752 shares of New Mountain Finance Corporation (US:NMFC) valued at $2,457,996 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 268,073 shares of New Mountain Finance Corporation. This represents a change in shares of 18.16% during the quarter. The current value of the position is $2,537,184 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)
2026-04-20 2026-03-31 13F NEW MTN FIN COM 647551100 316,752 48,679 18.16 2,458 -0.45 0.9272
2026-02-03 2025-12-31 13F NEW MTN FIN COM 647551100 268,073 -48,598 -15.35 2,469 -19.13 0.8894
2025-10-30 2025-09-30 13F NEW MTN FIN COM 647551100 316,671 84,584 36.44 3,053 24.67 1.0307
2025-07-25 2025-06-30 13F NEW MTN FIN COM 647551100 232,087 111,615 92.65 2,449 84.34 0.8745
2025-04-24 2025-03-31 13F NEW MTN FIN COM 647551100 120,472 29,600 32.57 1,329 19.00 0.5132
2025-01-29 2024-12-31 13F NEW MTN FIN COM 647551100 90,872 -307,472 -77.19 1,117 -76.61 0.4199
2024-11-07 2024-09-30 13F NEW MTN FIN COM 647551100 398,344 9,591 2.47 4,772 0.19 1.7303
2024-07-25 2024-06-30 13F NEW MTN FIN COM 647551100 388,753 105,433 37.21 4,763 32.71 1.8325
2024-05-07 2024-03-31 13F NEW MTN FIN COM 647551100 283,320 182,990 182.39 3,590 181.27 1.3873
2024-01-31 2023-12-31 13F NEW MTN FIN COM 647551100 100,330 563 0.56 1,276 -1.16 0.5350
2023-10-31 2023-09-30 13F NEW MTN FIN COM 647551100 99,767 2,305 2.37 1,292 6.52 0.5538
2023-07-17 2023-06-30 13F NEW MTN FIN COM 647551100 97,462 7,086 7.84 1,212 10.28 0.5223
2023-05-08 2023-03-31 13F NEW MTN FIN COM 647551100 90,376 2,132 2.42 1,100 0.73 0.5240
2023-02-02 2022-12-31 13F NEW MTN FIN COM 647551100 88,244 5,493 6.64 1,092 14.36 0.5553
2022-11-01 2022-09-30 13F NEW MTN FIN COM 647551100 82,751 8,882 12.02 954 8.41 0.5309
2022-08-01 2022-06-30 13F NEW MTN FIN COM 647551100 73,869 14,168 23.73 880 6.41 0.4552
2022-04-29 2022-03-31 13F NEW MTN FIN COM 647551100 59,701 5,798 10.76 827 11.91 0.3872
2022-01-31 2021-12-31 13F NEW MTN FIN COM 647551100 53,903 1,384 2.64 739 5.72 0.3420
2021-10-20 2021-09-30 13F NEW MTN FIN COM 647551100 52,519 19,225 57.74 699 59.59 0.3547
2021-07-23 2021-06-30 13F NEW MTN FIN COM 647551100 33,294 16,239 95.22 438 107.58 0.2461
2021-04-30 2021-03-31 13F NEW MTN FIN COM 647551100 17,055 17,055 211 0.1312
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.