Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Investments, cost $ 3,168,719 [1] $ 3,259,967 [2]
Securities purchased under collateralized agreements to resell, cost 30,000 30,000
Deferred financing costs, accumulated amortization $ 52,507 $ 47,531
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, authorized (in shares) 2,000,000 2,000,000
Preferred stock, issued (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, authorized (in shares) 200,000,000 200,000,000
Common stock, issued (in shares) 101,439,649 100,937,026
Common stock, outstanding (in shares) 101,439,649 100,937,026
Non-controlled/Non-affiliated    
Investments, cost $ 2,429,421 $ 2,523,522
Non-controlled/Affiliated    
Investments, cost 105,889 [3] 85,971 [4]
Controlled    
Investments, cost $ 633,409 [5] $ 650,474 [6]
[1] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act
[2] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[3] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of September 30, 2023 and December 31, 2022 along with transactions during the nine months ended September 30, 2023 in which the issuer was a non-controlled/affiliated investment is as follows:
Portfolio CompanyFair Value at December 31, 2022Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2023Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$— $15,581 $(459)$(10)$15,112 $— $717 $— $— 
Permian Holdco 3, Inc. / Permian Trust— — — — — — — — — 
Sierra Hamilton Holdings Corporation4,000 2 (7)(1,995)2,000 — 1 — 1 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC126,787 4,801 — (12,825)118,763 — 2,228 3,417 188 
Total Non-Controlled/Affiliated Investments$130,787 $20,384 $(466)$(14,830)$135,875 $— $2,946 $3,417 $189 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind ("PIK") interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[4] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of December 31, 2022 and December 31, 2021 along with transactions during the year ended December 31, 2022 in which the issuer was a non-controlled/affiliated investment is as follows:
Portfolio CompanyFair Value at December 31, 2021Gross
Additions (A)		Gross
Redemptions
(B)		Net Change In Unrealized Appreciation (Depreciation)Fair Value at December 31, 2022Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
Permian Holdco 3, Inc. / Permian Trust$— $— $— $— $— $— $— $— $— 
Sierra Hamilton Holdings Corporation4,000 — — — 4,000 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC130,775 5,168 — (9,156)126,787 — 2,105 4,109 250 
Total Non-Controlled/Affiliated Investments$134,775 $5,168 $— $(9,156)$130,787 $— $2,105 $4,109 $250 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind (“PIK”) interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement at fair value of an existing portfolio company into this category from a different category.
(B)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[5] Denotes investments in which the Company is in “Control”, as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of September 30, 2023 and December 31, 2022, along with transactions during the nine months ended September 30, 2023 in which the issuer was a controlled investment, is as follows:
Portfolio Company (1)Fair Value at December 31, 2022Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2023Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
Haven Midstream LLC / Haven Midstream Holdings LLC / QID TRH Holdings LLC $35,788 $— $— $(33,654)$2,134 $33,815 $— $— $1,530 
National HME, Inc./NHME Holdings Corp.5,381 — (17,404)15,023 3,000 (17,404)— — — 
New Benevis Topco, LLC / New Benevis Holdco, Inc.114,146 16,118 — (780)129,484 — 8,474 — 1,125 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.57,564 4,371 — — 61,935 — 3,946 — 381 
NM APP Canada Corp.— — — 7 7 — — — — 
NM CLFX LP16,172 — (259)(4,221)11,692 — — 1,082 — 
NM NL Holdings, L.P.94,305 — — 1,587 95,892 — — 6,318 — 
NM GP Holdco, LLC1,028 — — 13 1,041 — — 65 — 
NM YI LLC9,481 — — (32)9,449 — — 635 — 
NMFC Senior Loan Program III LLC140,000 — — — 140,000 — — 14,700 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 11,381 — 
UniTek Global Services, Inc.103,770 6,558 (26,449)6,883 90,762 2 3,283 3,877 907 
Total Controlled Investments$690,035 $27,047 $(44,112)$(15,174)$657,796 $16,413 $15,703 $38,058 $3,943 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[6] Denotes investments in which the Company is in “Control”, as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of December 31, 2022 and December 31, 2021 along with transactions during the year ended December 31, 2022 in which the issuer was a controlled investment, is as follows:
Portfolio CompanyFair Value at December 31, 2021Gross
Additions
(A)		Gross
Redemptions
(B)		Net Change In
Unrealized
Appreciation
(Depreciation)		Fair Value at December 31, 2022Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
Edmentum Inc.$— $— $— $— $— $54 $— $— $— 
National HME, Inc./NHME Holdings Corp.27,347 (8,161)— (13,805)5,381 — (9,661)— (1,500)
New Benevis Topco, LLC / New Benevis Holdco, Inc.109,595 5,914 — (1,363)114,146 — 8,057 — 1,500 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.34,759 7,805 — 15,000 57,564 — 4,504 — 511 
NM APP CANADA CORP9,422 — (7,345)(2,077)— 4,212 — 620 713 
NM APP US LLC14,891 — (5,080)(9,811)— 4,489 — 255 483 
NM CLFX LP24,676 — — (8,504)16,172 — — 1,596 — 
NM DRVT LLC7,984 — (5,152)(2,832)— 3,439 — 173 475 
NM JRA LLC3,996 — (2,043)(1,953)— 2,049 — 72 188 
NM GLCR LP50,687 — (14,750)(35,937)— 35,713 — 400 2,150 
NM KRLN LLC244 97 (9,319)8,978 — (9,318)— — — 
NM NL Holdings, L.P.107,870 53 (10,885)(2,733)94,305 — — 8,453 — 
NM GP Holdco, LLC1,197 1 (138)(32)1,028 — — 94 — 
NM YI LLC8,286 — — 1,195 9,481 — — 828 — 
NMFC Senior Loan Program III LLC140,000 — — — 140,000 — — 17,485 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 13,173 — 
Haven Midstream LLC / Haven Midstream Holdings LLC / QID TRH Holdings LLC 34,821 3,865 (38,685)35,787 35,788 12,802 6,316 — 1,902 
UniTek Global Services, Inc.67,635 13,378 (1,549)24,306 103,770 — 4,738 4,363 724 
Total Controlled Investments$755,810 $22,952 $(94,946)$6,219 $690,035 $53,440 $13,954 $47,512 $7,146 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.