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Ltd. | Common Equity - Common Stock2023-01-012023-12-310001278752Consumer Goods - Durable A&V A&V Holdings Midco, LLC First Lien Secured Debt - Revolver L+450, 1.00% Floor Maturity Date 03/10/252022-12-310001278752IMA Group Management Company, LLC2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Preferred Equity2023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2019-04-012020-03-310001278752Activ Software Holdings, LLC2022-12-310001278752Healthcare & Pharmaceuticals Alcami2023-12-310001278752mfic:SeniorSecuredFacilityMember2023-12-310001278752Business Services Jacent Jacent Strategic Merchandising Common Equity - Common Stock2023-12-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-12-310001278752Non-Controlled/Non-Affiliated Investments, Advertising, Printing & Publishing2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco, First Lien - Secured Debt2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Transportation - Cargo, Distribution, First Lien - Secured Debt2023-12-310001278752M&M OPCO, LLC2023-12-310001278752Athlete Buyer, LLC, Undrawn Commitment2023-12-310001278752HRO (Hero Digital) Holdings, LLC, Letters of Credit2023-12-310001278752Healthcare & Pharmaceuticals Cerus Cerus Corporation First Lien Secured Debt SOFR+660, 1.00% Floor Maturity Date 03/01/282023-12-310001278752mfic:MeasurementInputEstimatedProceedsMemberus-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMembermfic:ValuationTechniqueEstimatedProceedsMember2023-12-310001278752Surf Opco, LLC, Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals CNSI Acentra Holdings, LLC (fka CNSI Holdings, LLC) First Lien Secured Debt SOFR+650, 0.50% Floor Maturity Date 12/15/282023-12-310001278752Hotel, Gaming, Leisure, Restaurants Taco Cabana Taco Cabana YTC Enterprises, LLC First Lien Secured Debt L+625, 1.00% Floor Maturity Date 08/16/262022-12-310001278752Hotel, Gaming, Leisure, Restaurants Taco Cabana YTC Enterprises, LLC First Lien Secured Debt SOFR+636, 1.00% Floor Maturity Date 08/16/262023-12-310001278752High Tech Industries Springbrook Springbrook Holding Company, LLC First Lien Secured Debt SOFR+650, 1.00% Floor Maturity Date 12/23/262022-12-310001278752Business Services Wilson Language Training2022-12-310001278752Hive Intermediate, LLC, Undrawn Commitment2023-12-310001278752Non-Controlled/Non-Affiliated Investments2023-12-310001278752Total Commitments, Letters of Credit2022-12-310001278752Premier Imaging, LLC, Undrawn Commitment2022-12-310001278752High Tech Industries Pro Vigil Pro-Vigil Holding Company, LLC First Lien Secured Debt SOFR+860, 1.00% Floor Maturity Date 01/11/252023-12-310001278752Green Grass Foods, Inc.2023-12-310001278752Lifelong Learner Holdings, LLC2023-12-310001278752Truck-Lite Co., LLC2022-12-310001278752Investments2022-12-310001278752EHL Merger Sub, LLC2022-12-310001278752us-gaap:LetterOfCreditMembermfic:TotalCommitmentsMembermfic:LetterOfCreditExpireInTwoThousandTwentyThreeMember2022-12-310001278752Compu-Link Corporation, Undrawn Commitment2022-12-310001278752Controlled Investments Merx Aviation Finance, LLC, Revolver2023-01-012023-12-3100012787522017-03-310001278752Acentra Holdings, LLC (fka CNSI Holdings, LLC)2023-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI HALO Acquisition, Inc. First Lien Secured Debt - Revolver P+475 Maturity Date 09/02/252023-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco, First Lien - Secured Debt2022-12-310001278752Affiliated Investments2023-12-310001278752Controlled Investments, Energy - Oil & Gas2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Transportation – Cargo, Distribution, First Lien - Secured Debt2022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2019-03-310001278752Non-Controlled/Affiliated Investments2023-12-310001278752Consumer Goods - Non-durable Suave Silk Holdings I Corp. Common Equity - Common Stock2023-12-310001278752A&V Holdings Midco, LLC, Undrawn Commitment2022-12-310001278752Energy - Oil & Gas Spotted Hawk SHD Oil & Gas, LLC Common Equity - Series C Units2023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2020-03-310001278752mfic:TwoThousandFortyThreeNotesMember2018-03-310001278752Business Services Trench Plate2023-12-310001278752us-gaap:MoneyMarketFundsMember2023-12-310001278752mfic:MeasurementInputResidualValueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMembermfic:ValuationTechniqueResidualValueMember2023-12-310001278752mfic:ConvertibleNotesMember2022-12-3100012787526 Months SOFR Loans | 6 Month SOFR2023-12-310001278752Wholesale Banner Solutions Banner Buyer, LLC First Lien Secured Debt L+575, 1.00% Floor Maturity Date 10/31/252022-12-310001278752Business Services Jones & Frank JF Acquisition, LLC First Lien Secured Debt SOFR+560, 1.00% Floor Maturity Date 07/31/262023-12-310001278752mfic:SeniorSecuredNotesMember2022-12-310001278752Healthcare & Pharmaceuticals Mannkind Corporation Common Equity - Common Stock2023-12-310001278752mfic:RiskOfChangeInInterestRateAffectCostOfCapitalAndNetInvestmentIncomeMember2023-01-012023-12-310001278752Non-Controlled/Non-Affiliated Investments, High Tech Industries2022-12-310001278752KDC US Holdings, Undrawn Commitment2022-12-310001278752Consumer Services Renovo2022-12-310001278752Non-Controlled/Non-Affiliated Investments2022-12-310001278752mfic:FractionalSharesMember2015-08-052023-12-310001278752Non-Controlled/Non-Affiliated Investments, Healthcare & Pharmaceuticals, Common Equity/Interests2023-12-310001278752mfic:RiskOfInflationMember2023-01-012023-12-310001278752High Tech Industries Omada Omada Health, Inc. First Lien Secured Debt SOFR+710, 2.50% Floor Maturity Date 06/01/282023-12-310001278752Wildcat BuyerCo, Inc.2022-12-310001278752Business Services AML Rightsource Gabriel Partners, LLC First Lien Secured Debt L+600, 1.00% Floor Maturity Date 09/21/262022-12-310001278752High Tech Industries 2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Insurance2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Automotive2023-12-310001278752mfic:MerxAviationFinanceLLCMember2023-12-310001278752Healthcare & Pharmaceuticals Celerion Celerion Buyer, Inc. First Lien Secured Debt SOFR+650, 0.75% Floor Maturity Date 11/05/292023-12-310001278752mfic:DiversifiedInvestmentVehicleBankingFinanceAndRealEstateMember2022-12-310001278752Paladone Group Bidco Limited*2023-12-310001278752mfic:RiskRelatedToAbilityToEnterIntoTransactionsWithAffiliatesMember2023-01-012023-12-310001278752Energy - Electricity Renew Financial LLC (f/k/a Renewable Funding, LLC) Renew Financial LLC (f/k/a Renewable Funding, LLC) Preferred Equity - Series D Preferred Stock2022-12-310001278752Healthcare & Pharmaceuticals TissueTech TissueTech, Inc. First Lien Secured Debt SOFR+575, 1.00% Floor Maturity Date 04/01/272022-12-310001278752Pave America Interco, LLC (f/k/a Pavement Partners Interco, LLC), Undrawn Commitment2023-12-310001278752Village Pet Care, LLC, Undrawn Commitment2023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Definiti LLC2023-12-310001278752Consumer Services The Club Company Eldrickco Limited First Lien Secured Debt - Revolver SON+603, 0.50% Floor Maturity Date 11/26/252023-12-310001278752WelldyneRX, LLC, Undrawn Commitment2022-12-310001278752Construction & Building Englert2022-12-310001278752Manufacturing, Capital Equipment AVAD, LLC Surf Opco, LLC Common Equity - Class A-1 Common2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMembersrt:MaximumMemberus-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-06-172019-06-170001278752Healthcare & Pharmaceuticals ViewRay 2022-12-310001278752AMI US Holdings Inc.2022-12-310001278752MEP-TS Midco, LLC,2022-12-310001278752mfic:TwoThousandTwentySixNotesMember2023-12-310001278752Affiliated Investments Carbonfree Chemicals Holdings LLC, Common Stock2022-12-310001278752us-gaap:BaseRateMembermfic:SeniorSecuredFacilityMembersrt:MinimumMember2023-01-012023-12-310001278752srt:MinimumMember2022-01-012022-12-310001278752mfic:ControlledInvestmentsMembersrt:MinimumMember2023-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI Halo Holdings, LLC Unsecured Debt - Convertible Bond 10.00% Maturity Date 09/28/272022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMembermfic:ValuationTechniqueRecentTransactionMembermfic:MeasurementInputRecentTransactionMember2022-12-310001278752Marlin DTC-LS Midco 2, LLC, Undrawn Commitment2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services, Common Equity/Interests2023-12-310001278752Manufacturing, Capital Equipment Kauffman Kauffman Intermediate, LLC First Lien Secured Debt – Revolver SOFR+585, 1.00% Floor Maturity Date 05/08/252023-12-310001278752Naviga Inc. (fka Newscycle Solutions, Inc.), Undrawn Commitment2022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembermfic:MeasurementInputExpectedVolatilityMemberus-gaap:WarrantMember2023-12-3100012787523 Months SOFR Loans | 3 Month SOFR2022-12-310001278752Healthcare & Pharmaceuticals RHA Health Services Pace Health Companies, LLC First Lien Secured Debt SOFR+665, 1.00% Floor Maturity Date 08/02/252023-12-310001278752mfic:ManufacturingCapitalEquipmentMember2023-12-310001278752Graffiti Buyer, Inc., Undrawn Commitment2023-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752Healthcare & Pharmaceuticals ExactCare2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services, Preferred Equity2023-12-310001278752Healthcare & Pharmaceuticals ExactCare ExactCare Parent, Inc. First Lien Secured Debt - Revolver SOFR+650, 1.00% Floor Maturity Date 11/03/292023-12-310001278752Consumer Goods - Durable NSi Industries Wildcat Parent LP Common Equity - Common Stock2023-12-310001278752Energy - Electricity Solarplicity Group Limited (f/k/a AMP Solar UK) Solarplicity UK Holdings Limited Preferred Equity - Preferred Stock2022-12-310001278752CircusTrix Holdings LLC Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals TersSera TerSera Therapeutics LLC First Lien Secured Debt - Revolver SOFR+675, 1.00% Floor Maturity Date 04/04/292023-12-3100012787522019-07-220001278752Controlled Investments, High Tech Industries2023-12-310001278752Non-Controlled/Affiliated Investments, Warrants2023-12-310001278752Controlled Investments ChyronHego Corporation, Revolver2023-01-012023-12-310001278752Business Services Continuum Global Solutions, LLC Preferred Equity - Preferred Equity2022-12-310001278752Media - Diversified & Production Sonar Entertainment Sonar Entertainment2022-12-310001278752Business Services Ambrosia Buyer Corp. Second Lien Secured Debt 8.00% Maturity Date 08/28/252023-12-310001278752Non-Controlled/Non-Affiliated Investments, Construction & Building, First Lien - Secured Debt2022-12-310001278752Thomas Scientific, LLC2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Education2022-12-310001278752Retail2023-12-310001278752Treace Medical Concepts, Inc.2023-12-310001278752Consumer Services Bird Bird Rides, Inc. First Lien Secured Debt 15.00% (6.00% Cash plus 9.00% PIK) Floor Maturity Date 03/18/242023-12-310001278752Consumer Services US Auto U.S. Auto Finance, Inc. First Lien Secured Debt SOFR+900, 1.00% Floor Maturity Date 04/17/252022-12-310001278752mfic:TwoThousandTwentyEightNotesMember2020-03-310001278752mfic:RiskRelatedToInvestingInOurSecuritiesMember2023-01-012023-12-310001278752ChyronHego Corporation2022-12-3100012787522018-10-302018-10-300001278752Simeio Group Holdings, Inc.2022-12-310001278752mfic:GoldenBear2016RLLCMember2023-12-310001278752Business Services US Legal Support US Legal Support Investment Holdings, LLC Common Equity - Series A-1 Units2022-12-310001278752High Tech Industries New Era Technology, Inc.2022-12-310001278752mfic:TwoThousandTwentyEightNotesMember2019-03-310001278752Healthcare & Pharmaceuticals Carbon6 Carbon6 Technologies, Inc. First Lien Secured Debt SOFR+675, 1.00% Floor Maturity Date 08/01/272022-12-310001278752Jacent Strategic Merchandising, Undrawn Commitment2022-12-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. First Lien Secured Debt L+700, 1.00% Floor Maturity Date 02/01/252022-12-310001278752Transportation - Cargo, Distribution IronClad Ironhorse Purchaser, LLC First Lien Secured Debt – Revolver SOFR+650, 1.00% Floor Maturity Date 09/30/272023-12-310001278752mfic:ConvertibleNotesMember2014-04-012015-03-310001278752Business Services PSE Graffiti Buyer, Inc. First Lien Secured Debt - Revolver SOFR+560, 1.00% Floor Maturity Date 08/10/272023-12-310001278752us-gaap:CollateralizedLoanObligationsMember2019-04-012020-03-310001278752Construction & Building Englert2023-12-310001278752High Tech Industries MYCOM Magnate Holding Corp. First Lien Secured Debt - Revolver SOFR+640, 0.50% Floor Maturity Date 02/14/242023-12-310001278752HEF Safety Ultimate Holdings, LLC Undrawn Commitment2023-12-310001278752Trench Plate Rental Co.2023-12-310001278752Consumer Goods - Durable KLO Holdings, LLC 1244311 B.C. Ltd.2023-12-310001278752High Tech Industries Springbrook Springbrook Holding Company, LLC First Lien Secured Debt - Revolver L+575, 1.00% Floor Maturity Date 12/23/262022-12-310001278752Consumer Goods - Non-durable Dan Dee2023-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752High Tech Industries Digital.ai Digital.ai Software Holdings, Inc. First Lien Secured Debt - Revolver SOFR+710, 1.00% Floor Maturity Date 02/10/272023-12-310001278752Unchained Labs, LLC2023-12-310001278752Business Services Continuum Global Solutions, LLC Preferred Equity - Preferred Equity2023-12-310001278752mfic:StructuredProductsAndOtherMemberus-gaap:FairValueInputsLevel3Member2023-12-310001278752EmpiRx Health LLC, Letters of Credit2022-12-310001278752mfic:SeniorSecuredNotesMember2021-03-310001278752Affiliated Investments AIC SPV Holdings II, LLC, Preferred Equity2022-12-310001278752Non-Controlled/Non-Affiliated Investments,2023-12-310001278752HRO (Hero Digital) Holdings, LLC, Letters of Credit2022-12-310001278752Affiliated Investments 1244311 B.C. Ltd., Term Loan2023-01-012023-12-310001278752Beacon Mobility Corp. Undrawn Commitment2022-12-310001278752Beverage, Food & Tobacco Rise Baking Ultimate Baked Goods Midco LLC First Lien Secured Debt - Revolver L+650, 1.00% Floor Maturity Date 08/13/272022-12-310001278752Trench Plate Rental Co., Letters of Credit2023-12-310001278752Business Services US Legal Support US Legal Support Investment Holdings, LLC Common Equity - Series A-1 Units2023-12-310001278752mfic:TwoThousandFortyThreeNotesMember2015-04-012016-03-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc. Swisstech IP CO, LLC First Lien Secured Debt 6% PIK Maturity Date 11/09/242022-12-310001278752mfic:ConvertibleNotesMember2022-03-310001278752Insurance Relation Insurance 2022-12-310001278752Controlled Investments ChyronHego Corporation, Preferred Equity2023-12-310001278752Beverage, Food & Tobacco Berner Foods Berner Food & Beverage, LLC First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 07/30/262022-12-310001278752Compu-Link Corporation2023-12-310001278752SI Holdings, Inc., Undrawn Commitment2022-12-310001278752mfic:ControlledInvestmentsMembersrt:MinimumMember2022-12-310001278752Gabriel Partners, LLC2022-12-310001278752USLS Acquisition, Inc., Undrawn Commitment2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment, Preferred Equity2022-12-310001278752Non-Controlled/Non-Affiliated Investments Advertising, Printing & Publishing2022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-02-252019-02-250001278752Healthcare & Pharmaceuticals TersSera TerSera Therapeutics LLC First Lien Secured Debt SOFR+675, 1.00% Floor Maturity Date 04/04/292023-12-310001278752Upstack Holdco Inc., Letters of Credit2023-12-310001278752Wildcat BuyerCo, Inc., Letters of Credit2023-12-310001278752Consumer Services Clarus Commerce Marlin DTC-LS Midco 2, LLC First Lien Secured Debt L+650, 1.00% Floor Maturity Date 07/01/252022-12-310001278752Guernsey Holdings SDI LA LLC, Undrawn Commitment2022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2021-03-300001278752Consumer Services Clarus Commerce2022-12-310001278752Wholesale Thomas Scientific Thomas Scientific, LLC First Lien Secured Debt SOFR+640, 1.00% Floor Maturity Date 12/14/272023-12-310001278752Pace Health Companies, LLC2022-12-310001278752Utilities - Electric2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment2022-12-310001278752mfic:RiskOfDebtInvestmentsBeingSubordinatedToOtherCreditorsClaimsMember2023-01-012023-12-310001278752Beverage, Food & Tobacco Hive Hive Intermediate, LLC First Lien Secured Debt SOFR+400 Cash plus 2.00% PIK, 1.00% Floor Maturity Date 09/22/272022-12-310001278752Healthcare & Pharmaceuticals KureSmart2023-12-310001278752mfic:RiskRelatedToExerciseOfSubscriptionRightsMember2023-01-012023-12-310001278752Affiliated Investments Auto Pool 2023 Trust (Del. Stat. Trust)2023-12-310001278752Consumer Services 2023-12-310001278752Healthcare & Pharmaceuticals Carbon62022-12-310001278752Insurance PGM Holdings Corporation Turbo Buyer, Inc.2023-12-310001278752mfic:TwoThousandTwentyEightNotesMember2021-03-310001278752mfic:TwoThousandFortyTwoNotesMember2015-03-310001278752Business Services US Legal Support USLS Acquisition, Inc. First Lien Secured Debt - Revolver SOFR+590, 1.00% Floor Maturity Date 12/02/242023-12-3100012787522021-07-012021-09-300001278752us-gaap:FairValueInputsLevel1Memberus-gaap:MoneyMarketFundsMember2023-12-310001278752SMC IR Holdings, LLC | Common Equity - Common Stock2022-01-012022-12-310001278752High Tech Industries Tax Slayer MEP-TS Midco, LLC First Lien Secured Debt - Revolver L+600, 1.00% Floor Maturity Date 12/31/262022-12-310001278752Non-Controlled/Non-Affiliated Investments, Second Lien - Secured Debt2022-12-310001278752Controlled Investments Merx Aviation Finance, LLC, Revolver2022-03-310001278752Beverage, Food & Tobacco Hive2023-12-310001278752Controlled Investments, Warrants2023-12-310001278752Project Comfort Buyer, Inc.2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Wholesale, First Lien - Secured Debt2023-12-310001278752Controlled Investments, High Tech Industries, First Lien - Secured Debt2023-12-310001278752High Tech Industries American Megatrends AMI US Holdings Inc. First Lien Secured Debt SOFR+535, 1.00% Floor Maturity Date 04/01/252023-12-310001278752Healthcare & Pharmaceuticals Treace2023-12-310001278752Renew JV LLC | Common Equity - Membership Interests2022-01-012022-12-310001278752AQ Sunshine, Inc., Undrawn Commitment2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752us-gaap:ValuationTechniqueDiscountedCashFlowMembermfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752Shelby 2021 Holdings Corp., Undrawn Commitment2022-12-310001278752USLS Acquisition, Inc., Letters of Credit2023-12-310001278752mfic:ApolloInvestmentManagementLPMembersrt:MaximumMembermfic:BaseManagementFeeMember2023-01-012023-12-310001278752Beverage, Food & Tobacco2022-12-310001278752Non-Controlled/Affiliated Investments, Consumer Services2023-12-310001278752Energy - Electricity Solarplicity Group Limited (f/k/a AMP Solar UK)2022-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI HALO Acquisition, Inc. First Lien Secured Debt SOFR+585, 1.00% Floor Maturity Date 08/31/262023-12-310001278752GI Apple Midco LLC2023-12-310001278752Healthcare & Pharmaceuticals IMA Group IMA Group Management Company, LLC First Lien Secured Debt L+500, 1.00% Floor Maturity Date 05/30/242022-12-310001278752mfic:TreaceMedicalConceptsIncMember2023-12-310001278752Non-Controlled/Affiliated Investments, Unsecured Debt2022-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueMarketComparableTechniqueMembermfic:SecondLienSecuredDebtMembermfic:MeasurementInputComparableMultipleMember2022-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnIncomeMember2023-01-012023-01-010001278752mfic:SECRule10b51RepurchasePlanMember2017-01-042017-01-040001278752Healthcare & Pharmaceuticals Alcami Alcami Corporation First Lien Secured Debt SOFR+710, 1.00% Floor Maturity Date 12/21/282023-12-310001278752Non-Controlled/Non-Affiliated Investments, Utilities - Electric2022-12-310001278752mfic:TwoThousandTwentySixNotesMember2016-04-012017-03-310001278752us-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMembermfic:ValuationTechniqueRecoveryAnalysisMembermfic:MeasurementInputRecoverableAmountMember2023-12-310001278752New Era Technology, Inc.2023-12-3100012787522022-01-012022-12-310001278752High Tech Industries Modern Campus RMCF IV CIV XXXV, L.P. Common Equity - Common Stock2022-12-310001278752mfic:ConvertibleNotesMember2016-04-012017-03-310001278752Aviation and Consumer Transport Merx Aviation Finance, LLC2022-12-310001278752Non-Controlled/Non-Affiliated Investments, First Lien - Secured Debt2023-12-310001278752Beverage, Food & Tobacco Patriot Pickle Patriot Foods Buyer, Inc. First Lien Secured Debt- Revolver SOFR+600, 1.00% Floor Maturity Date 12/22/292023-12-310001278752mfic:RiskOfPriceDeclineAndIlliquidityInCorporateDebtMarketsMember2023-01-012023-12-310001278752Automotive Club Car Wash2023-12-310001278752Business Services Accelerate Learning Eagle Purchaser, Inc. 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First Lien Secured Debt L+600, 0.75% Floor Maturity Date 04/14/282022-12-310001278752Affiliated Investments Renew JV LLC, Membership Interests2022-12-310001278752Transportation - Cargo, Distribution Beacon Mobility2022-12-310001278752mfic:ClassAOneNotesMemberus-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembermfic:MficbethesdacloonellcdebtsecuritizationMember2023-01-012023-12-310001278752Non-Controlled/Non-Affiliated Investments, Telecommunications, Second Lien - Secured Debt2023-12-310001278752TissueTech, Inc.2022-12-310001278752Cerus Corporation, Undrawn Commitment2022-12-310001278752AIC SPV Holdings II, LLC | Preferred Equity - Preferred Stock2022-01-012022-12-310001278752Business Services Wilson Language Training2023-12-310001278752Healthcare & Pharmaceuticals Ovation Fertility2022-12-310001278752High Tech Industries Litify Litify LLC First Lien Secured Debt SOFR+710, 1.00% Floor Maturity Date 02/02/292023-12-310001278752mfic:TwoThousandTwentySixNotesMember2015-04-012016-03-310001278752Lash OpCo, LLC, Undrawn Commitment2023-12-310001278752mfic:IncentiveFeeBasedOnIncomeMembermfic:LegacyFeeMember2019-01-012022-12-310001278752Controlled Investments ChyronHego US Holding Corporation, Revolver2023-01-012023-12-310001278752Beverage, Food & Tobacco Turkey Hill2022-12-310001278752Manufacturing, Capital Equipment AVAD, LLC Surf Opco, LLC Preferred Equity - Class P-1 Preferred2022-12-310001278752Smith Topco, Inc., Undrawn Commitment2023-12-310001278752mfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueRecentTransactionMembermfic:MeasurementInputRecentTransactionMember2022-12-310001278752Consumer Services Activ Activ Software Holdings, LLC First Lien Secured Debt - Revolver SOFR+650, 1.00% Floor Maturity Date 05/04/272023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMembermfic:ValuationTechniqueRecentTransactionMembermfic:MeasurementInputRecentTransactionMember2022-12-310001278752Automotive2022-12-310001278752Business Services Avenu ACP Avenu Buyer, LLC First Lien Secured Debt - Revolver SOFR+625, 1.00% Floor Maturity Date 10/02/292023-12-310001278752mfic:SeniorSecuredFacilityMember2018-03-310001278752mfic:MerxAviationFinanceLLCMember2023-01-012023-12-310001278752mfic:RiskOfNegativeImpactUponTerminationOfMergerMember2023-01-012023-12-310001278752Silk Holdings III Corp., Undrawn Commitment2023-12-310001278752mfic:SeniorSecuredFacilityMember2016-03-310001278752Beacon Mobility Corp.2023-12-310001278752Insurance2023-12-310001278752Ironhorse Purchaser, LLC2023-12-310001278752Kure Pain Holdings, Inc.2023-12-310001278752Telecommunications MCA Mobile Communications America, Inc. First Lien Secured Debt – Revolver SOFR+600, 1.00% Floor Maturity Date 10/16/292023-12-310001278752Construction & Building Englert Gutter Buyer, Inc. First Lien Secured Debt Revolver P+525 Maturity Date 03/06/252022-12-310001278752High Tech Industries Tax Slayer MEP-TS Midco, LLC First Lien Secured Debt L+600, 1.00% Floor Maturity Date 12/31/262022-12-310001278752FC2 LLC | Common Equity - Common Stock2022-01-012022-12-310001278752Energy - Electricity2022-12-310001278752Healthcare & Pharmaceuticals Treace Treace Medical Concepts, Inc. First Lien Secured Debt SOFR+610, 1.00% Floor Maturity Date 04/01/272023-12-310001278752mfic:TwoThousandTwentyEightNotesMember2019-04-012020-03-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnIncomeMember2023-01-012023-12-310001278752Yak Access LLC, Undrawn Commitment2023-12-310001278752Non-Controlled/Affiliated Investments2022-12-310001278752High Tech Industries Gtreasury G Treasury SS LLC2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Retail, First Lien - Secured Debt2023-12-310001278752Affiliated Investments Renew Financial LLC (f/k/a Renewable Funding, LLC), Preferred Equity2022-04-012022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2022-01-012022-12-310001278752Controlled Investments Glacier Oil & Gas Corp. (f/k/a Miller Energy Resources, Inc.), Common Stock2022-04-012022-12-310001278752GB001, Inc., Undrawn Commitment2023-12-310001278752Hive Intermediate, LLC2022-12-310001278752Affiliated Investments GSC Technologies Inc., Term Loan2022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2020-04-012021-03-310001278752Wholesale Thomas Scientific BSP-TS, LP Common Equity - Common Stock2023-12-310001278752mfic:SeniorSecuredFacilityMember2021-04-012022-03-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment, First Lien - Secured Debt2022-12-310001278752Non-Controlled/Non-Affiliated Investments, First Lien - Secured Debt2022-12-310001278752High Tech Industries UpStack Upstack Holdco Inc. First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 08/20/272022-12-310001278752MSEA Tankers LLC | Common Equity - Class A Units2023-01-012023-12-310001278752Construction & Building Englert Gutter Buyer, Inc. First Lien Secured Debt L+625, 1.00% Floor Maturity Date 03/06/252022-12-310001278752Business Services AlpineX Alpinex Opco, LLC First Lien Secured Debt SOFR+626, 1.00% Floor Maturity Date 12/27/272022-12-310001278752Non-Controlled/Non-Affiliated Investments, Construction & Building, Common Equity/Interests2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMemberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2023-12-310001278752Consumer Services Atlas Technical Consultants2023-12-310001278752us-gaap:RetailMember2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMembermfic:MeasurementInputSaleProceedsMembermfic:ValuationTechniqueSaleProceedsMember2022-12-310001278752TGG TS Acquisition Company2022-12-310001278752us-gaap:PreferredStockMember2022-12-310001278752Beverage, Food & Tobacco Turkey Hill IC Holdings LLC Common Equity - Series A Units2023-12-310001278752Wholesale Banner Solutions2022-12-310001278752mfic:FirstLienSecuredDebtMembermfic:ValuationTechniqueYieldAnalysisMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752mfic:SeniorSecuredFacilityMembersrt:ScenarioForecastMember2024-12-220001278752Telecommunications MCA Mobile Communications America, Inc. First Lien Secured Debt SOFR+600, 1.00% Floor Maturity Date 10/16/292023-12-310001278752mfic:RiskOfDependencyOnAbilityToManageFutureGrowthMember2023-01-012023-12-310001278752KDC US Holdings, Letters of Credit2022-12-310001278752Transportation - Cargo, Distribution Camin Cargo Camin Cargo Control Holdings, Inc. First Lien Secured Debt SOFR+600, 1.00% Floor Maturity Date 12/06/292023-12-310001278752Automotive Crowne Automotive2022-12-310001278752mfic:AffiliatedInvestmentsMember2022-12-310001278752mfic:FirstLienSecuredDebtMember2023-12-310001278752Common Equity/Interests2023-12-310001278752us-gaap:UnsecuredDebtMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-12-310001278752Business Services IRP SMC IR Holdings, LLC Common Equity - Common Stock2022-12-310001278752Healthcare & Pharmaceuticals CNSI Acentra Holdings, LLC (fka CNSI Holdings, LLC) First Lien Secured Debt – Revolver SOFR+650, 0.50% Floor Maturity Date 12/17/272023-12-310001278752Automotive Crowne Automotive Vari-Form Inc. First Lien Secured Debt 11.00% (7.00% Cash plus 4.00% PIK) Maturity Date 02/02/232023-12-310001278752Preferred Equity2023-12-310001278752Beverage, Food & Tobacco Berner Foods Berner Food & Beverage, LLC First Lien Secured Debt SOFR+565, 1.00% Floor Maturity Date 07/30/272023-12-310001278752Consumer Goods - Durable A&V A&V Holdings Midco, LLC First Lien Secured Debt - Revolver SOFR+461, 1.00% Floor Maturity Date 03/10/252023-12-310001278752Healthcare & Pharmaceuticals Rigel Pharmaceuticals Rigel Pharmaceuticals, Inc. First Lien Secured Debt SOFR+565, 1.50% Floor Maturity Date 09/01/262022-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods – Durable, First Lien - Secured Debt2023-12-310001278752Controlled Investments ChyronHego Corporation, Preferred Equity2022-04-012022-12-310001278752mfic:TwoThousandTwentySixNotesMember2020-04-012021-03-310001278752Guernsey Holdings SDI LA LLC2022-12-310001278752mfic:SeniorSecuredFacilityMember2015-03-310001278752Sigma Buyer LLC2023-12-310001278752mfic:RiskOfDeclineInTradingPriceOfCommonStockPostMergerMember2023-01-012023-12-310001278752mfic:TwoThousandFortyThreeNotesMember2019-03-310001278752mfic:TwoThousandFortyThreeNotesMember2017-04-012018-03-310001278752Beverage, Food & Tobacco Hive2022-12-310001278752Controlled Investments, Common Equity/Interests2023-12-310001278752mfic:SeniorSecuredNotesMember2015-03-310001278752Consumer Goods - Non-durable LashCo2022-12-310001278752srt:MaximumMember2023-01-012023-12-3100012787522022-04-012022-06-300001278752mfic:RiskRelatedToInvestmentsInTheEnergySectorMember2023-01-012023-12-310001278752mfic:SeniorSecuredNotesMember2019-03-3100012787522023-06-300001278752Transportation - Cargo, Distribution Heniff and Superior2022-12-310001278752THLP CO. LLC, Letters of Credit2022-12-310001278752mfic:CommonEquityInterestsMember2022-12-310001278752Manufacturing, Capital Equipment MedPlast Holdings Inc. Viant Medical Holdings, Inc. (fka MedPlast Holdings, Inc.) Second Lien Secured Debt SOFR+786, 0.00% Floor Maturity Date 07/02/262023-12-310001278752mfic:TwoThousandFortyThreeNotesMember2023-01-012023-12-310001278752Construction & Building Englert Gutter Buyer, Inc. First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 03/06/252023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2022-12-310001278752Controlled Investments Dynamic Product Tankers, LLC, Common Stock2022-04-012022-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute2022-12-310001278752Affiliated Investments Carbonfree Chemicals Holdings LLC, Common Stock2022-03-310001278752Thomas Scientific, LLC, Undrawn Commitment2023-12-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembermfic:MeasurementInputExpectedVolatilityMembersrt:WeightedAverageMember2022-12-310001278752Heniff Holdco, LLC2023-12-310001278752Manufacturing, Capital Equipment AVAD, LLC Surf Opco, LLC Preferred Equity - Class P-1 Preferred2023-12-310001278752Wholesale2023-12-310001278752Controlled Investments, Structured Products and Other2022-12-310001278752Beverage, Food & Tobacco Nutpods Green Grass Foods, Inc. First Lien Secured Debt - Revolver SOFR+625, 1.00% Floor Maturity Date 12/26/292023-12-310001278752mfic:RiskRelatedToPriceVolatilityOfCrudeOilAndNaturalGasMember2023-01-012023-12-310001278752Hive Intermediate, LLC2023-12-310001278752GS SEER Group Holdings, LLC | Common Equity - Common Stock2023-01-012023-12-310001278752Marlin DTC-LS Midco 2, LLC2022-12-310001278752Consumer Services2022-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Spectrum Automotive Shelby 2021 Holdings Corp. First Lien Secured Debt – Revolver L+575, 0.75% Floor Maturity Date 06/29/272022-12-310001278752mfic:RiskOfUncertaintyWithRespectToTheFinancialStabilityOfTheUnitedStateMember2023-01-012023-12-310001278752Business Services AlpineX Alpinex Opco, LLC First Lien Secured Debt - Revolver SOFR+626, 1.00% Floor Maturity Date 12/27/272022-12-310001278752Beverage, Food & Tobacco Turkey Hill2023-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMemberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752High Tech Industries Acronis AG ACRONIS AG First Lien Secured Debt SOFR+595, 1.00% Floor Maturity Date 04/01/272023-12-310001278752Controlled Investments SHD Oil & Gas, LLC, Series C Units2022-03-310001278752mfic:ValuationTechniqueYieldAnalysisMembermfic:FirstLienSecuredDebtMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752Ultimate Baked Goods Midco LLC2023-12-310001278752HomeRenew Buyer, Inc.2023-12-310001278752High Tech Industries ChyronHego Corporation ChyronHego Corporation Preferred Equity - Preferred Equity2022-12-310001278752Healthcare & Pharmaceuticals Alcami Alcami Corporation First Lien Secured Debt SOFR+700, 1.00% Floor Maturity Date 12/21/282022-12-310001278752Beverage, Food & Tobacco Hive FCP-Hive Holdings, LLC Common Equity - Common Stock2023-12-310001278752Alpinex Opco, LLC, Undrawn Commitment2022-12-310001278752Affiliated Investments 1244311 B.C. Ltd., Term Loan2022-03-310001278752New Era Technology, Inc., Undrawn Commitment2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods – Non-durable, First Lien - Secured Debt2023-12-310001278752Automotive Truck-Lite Co., LLC First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 12/14/262023-12-310001278752Business Services Soliant Soliant Health, Inc. Common Equity - Membership Interests2023-12-310001278752Business Services Jacent JSM Equity Investors, L.P. Preferred Equity - Class P Partnership Units2022-12-310001278752SI Holdings, Inc., Undrawn Commitment2023-12-310001278752High Tech Industries MYCOM Magnate Holding Corp. First Lien Secured Debt SOFR+615, 0.50% Floor Maturity Date 12/16/242023-12-310001278752Affiliated Investments AIC SPV Holdings II, LLC, Preferred Equity2022-03-310001278752Healthcare & Pharmaceuticals RHA Health Services Pace Health Companies, LLC First Lien Secured Debt - Revolver SOFR+640, 1.00% Floor Maturity Date 08/02/252023-12-310001278752PARS Group LLC2023-12-310001278752mfic:RiskOfEconomicDownturnMember2023-01-012023-12-310001278752mfic:MerxAviationMember2023-02-212023-02-210001278752mfic:TwoThousandTwentyEightNotesMember2023-01-012023-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnCumulativeNetRealizedGainsMember2022-12-312022-12-310001278752High Tech Industries Gtreasury G Treasury SS LLC First Lien Secured Debt - Revolver SOFR+660, 1.00% Floor Maturity Date 06/29/292023-12-310001278752Non-Controlled/Non-Affiliated Investments, Common Equity/Interests2022-12-310001278752Consumer Services Atlas Technical Consultants GI Apple Midco LLC First Lien Secured Debt SOFR+675, 1.00% Floor Maturity Date 04/19/302023-12-310001278752Business Services SEER GS SEER Group Borrower LLC First Lien Secured Debt SOFR+675, 1.00% Floor Maturity Date 4/29/302023-12-310001278752mfic:StructuredProductsAndOtherMember2023-12-310001278752Media - Diversified & Production Sonar Entertainment Sonar Entertainment, Inc. First Lien Secured Debt - Revolver L+760, 1.25% Floor Maturity Date 11/15/212022-12-310001278752Non-Controlled/Non-Affiliated Investments, Energy - Electricity, First Lien - Secured Debt2023-12-310001278752Controlled Investments, Aviation and Consumer Transport, Common Equity/Interests2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Non-durable, Preferred Equity2023-12-310001278752Business Services AlpineX Alpinex Opco, LLC First Lien Secured Debt SOFR+725, 1.00% Floor Maturity Date 12/27/272023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2016-04-012017-03-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMember2022-04-012022-12-310001278752Healthcare & Pharmaceuticals TissueTech TissueTech, Inc. First Lien Secured Debt - Revolver SOFR+411, 1.00% Floor Maturity Date 04/01/272023-12-310001278752Telecommunications2023-12-310001278752Affiliated Investments Pelican Energy, LLC, Common Stock2023-01-012023-12-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Member2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-06-042019-06-040001278752High Tech Industries Calero Holdings, Inc. Telesoft Holdings, LLC First Lien Secured Debt SOFR+585, 1.00% Floor Maturity Date 12/16/252023-12-310001278752Kure Pain Holdings, Inc., Undrawn Commitment2023-12-310001278752Precision Refrigeration & Air Conditioning LLC, Undrawn Commitment2022-12-310001278752New Era Technology, Inc.2022-12-310001278752mfic:ConvertibleNotesMember2020-04-012021-03-3100012787522019-04-012020-03-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. First Lien Secured Debt SOFR+725, 1.00% Floor Maturity Date 02/01/252023-12-310001278752Lash OpCo, LLC2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Healthcare & Pharmaceuticals, Warrants2022-12-310001278752Transportation - Cargo, Distribution Heniff and Superior Heniff Holdco, LLC First Lien Secured Debt SOFR+575, 1.00% Floor Maturity Date 12/03/262022-12-310001278752Beverage, Food & Tobacco Berner Foods Berner Food & Beverage, LLC First Lien Secured Debt - Revolver P+450 Maturity Date 07/30/262022-12-310001278752Green Grass Foods, Inc. Undrawn Commitment2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Education, First Lien - Secured Debt2022-12-310001278752Manufacturing, Capital Equipment International Wire Group IW Buyer LLC First Lien Secured Debt – Revolver SOFR+685, 1.00% Floor Maturity Date 06/28/292023-12-310001278752Consumer Goods - Durable NSi Industries Wildcat BuyerCo, Inc. 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First Lien Secured Debt SOFR+665, 1.00% Floor Maturity Date 11/23/272023-12-3100012787522015-08-052023-12-310001278752Non-Controlled/Affiliated Investments, Structured Products and Other2022-12-310001278752Graffiti Buyer, Inc.2022-12-310001278752mfic:FractionalSharesMember2018-10-302018-10-300001278752Truck-Lite Co., LLC, Letters of Credit2022-12-310001278752Transportation - Cargo, Distribution Heniff and Superior Heniff Holdco, LLC First Lien Secured Debt- Revolver SOFR+575, 1.00% Floor Maturity Date 12/03/242022-12-310001278752Affiliated Investments FC2 LLC, Term Loan2022-12-310001278752JF Acquisition, LLC2023-12-310001278752EmpiRx Health LLC2022-12-310001278752GI Apple Midco LLC Undrawn Commitment2023-12-310001278752US Fertility Enterprises, LLC2023-12-310001278752us-gaap:LetterOfCreditMembermfic:TotalCommitmentsMembermfic:LetterOfCreditExpireInTwoThousandTwentyFourMember2022-12-310001278752Healthcare & Pharmaceuticals Paragon 282022-12-310001278752Sirsi Corporation2022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMember2022-04-012022-12-310001278752High Tech Industries Gtreasury G Treasury SS LLC First Lien Secured Debt SOFR+660, 1.00% Floor Maturity Date 06/29/292023-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2015-03-310001278752Business Services Trench Plate Trench Safety Solutions Holdings, LLC Common Equity - Common Stock2023-12-310001278752Pave America Interco, LLC (f/k/a Pavement Partners Interco, LLC)2023-12-310001278752Advertising Printing & Publishing Hero Digital2022-12-310001278752Controlled Investments MSEA Tankers LLC, Class A Units2022-03-3100012787522023-07-012023-09-300001278752mfic:RiskRelatedToTradingMarketOrMarketValueOfOurDebtSecuritiesFluctuateMember2023-01-012023-12-310001278752mfic:RiskOfRealizationOfAnticipatedBenefitsIncudingEstimatedCostSavingsMember2023-01-012023-12-310001278752mfic:TwoThousandFortyThreeNotesMember2022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2021-06-162021-06-160001278752Go Car Wash Management Corp., Undrawn Commitment2022-12-310001278752Business Services PSI Services, LLC Lifelong Learner Holdings, LLC First Lien Secured Debt L+575, 1.00% Floor Maturity Date 10/19/262022-12-310001278752Non-Controlled/Non-Affiliated Investments, Advertising, Printing & Publishing, First Lien - Secured Debt2022-12-310001278752Forge Biologics, Inc., Undrawn Commitment2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2018-03-310001278752High Tech Industries Schlesinger Group Schlesinger Global, LLC First Lien Secured Debt SOFR+615 Cash plus 1.00% PIK, 1.00% Floor Maturity Date 07/12/252023-12-310001278752Business Services Wilson Language Owl Parent Holdings, LLC Common Equity - Common Stock2022-12-310001278752Business Services Elo Touch TGG TS Acquisition Company First Lien Secured Debt - Revolver L+650, 0.00% Floor Maturity Date 12/14/232022-12-310001278752Consumer Services Bird Bird Rides, Inc. 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Gainline Galaxy Holdings LLC Common Equity - Common Stock2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Preferred Equity2022-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnCumulativeNetRealizedGainsMember2021-04-012022-03-310001278752Consumer Services Lending Point Lending Point LLC First Lien Secured Debt SOFR+590, 1.00% Floor Maturity Date 12/30/262023-12-310001278752Consumer Services The Club Company Eldrickco Limited First Lien Secured Debt - Revolver SON+575, 0.50% Floor Maturity Date 05/26/252022-12-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. 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Undrawn Commitment2023-12-310001278752mfic:MediaDiversifiedProductionMember2022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2017-04-012018-03-310001278752Healthcare & Pharmaceuticals Cerus Cerus Corporation First Lien Secured Debt SOFR+660, 1.80% Floor Maturity Date 03/01/282023-12-310001278752us-gaap:SubsequentEventMember2024-02-232024-02-230001278752mfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Membermfic:MeasurementInputRecoverableAmountTwoMembermfic:ValuationTechniqueRecoveryAnalysisMember2023-12-310001278752Non-Controlled/Affiliated Investments, Energy - Oil & Gas, Common Equity/Interests2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2018-09-170001278752Business Services2023-12-310001278752Pace Health Companies, LLC, Undrawn Commitment2022-12-310001278752Hotel, Gaming, Leisure, Restaurants Guernsey Guernsey Holdings SDI LA LLC First Lien Secured Debt 6.95% Maturity Date 11/18/262023-12-310001278752LS Clinical Services Holdings, Inc.2022-12-310001278752mfic:UnfundedDelayedDrawLoanCommitmentsMember2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Construction & Building2022-12-310001278752Affiliated Investments 1244311 B.C. 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First Lien Secured Debt - Revolver SOFR+665, 0.75% Floor Maturity Date 09/22/262023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Definiti LLC Greylock Holdings LLC Common Equity - Common Stock2023-12-310001278752High Tech Industries Modern Campus2023-12-310001278752Chemicals, Plastics & Rubber Carbonfree Chemicals SPE I LLC (f/k/a Maxus Capital Carbon SPE I) Carbonfree Chemicals Holdings LLC Common Equity - Common Equity / Interest2023-12-310001278752Aviation and Consumer Transport2022-12-310001278752mfic:RiskOfAnnouncementAndPendencyOfProposedMergerMember2023-01-012023-12-310001278752Automotive Truck-Lite Co., LLC2022-12-310001278752Healthcare & Pharmaceuticals RHA Health Services2023-12-310001278752Athlete Buyer, LLC2023-12-310001278752THLP CO. LLC2023-12-310001278752Erickson Inc2022-12-310001278752Beverage, Food & Tobacco Hive Hive Intermediate, LLC First Lien Secured Debt SOFR+610 Cash plus 2.00% PIK, 1.00% Floor Maturity Date 09/22/272023-12-310001278752mfic:SeniorSecuredNotesMember2023-12-310001278752mfic:RiskOfOperatingInAHighlyCompetitiveMarketMember2023-01-012023-12-310001278752M&M OPCO, LLC, Undrawn Commitment2023-12-310001278752Business Services SEER GS SEER Group Borrower LLC Common Equity - Common Stock2023-12-310001278752Beacon Mobility Corp. Letters of Credit2023-12-310001278752Controlled Investments, Unsecured Debt2022-12-310001278752Eldrickco Limited*2022-12-310001278752Non-Controlled/Affiliated Investments, Preferred Equity2023-12-310001278752srt:MaximumMembermfic:SeniorSecuredFacilityMember2023-12-310001278752TS Investors, LLC, Undrawn Commitment2023-12-310001278752Consumer Goods - Durable NSi Industries Wildcat BuyerCo, Inc. First Lien Secured Debt - Revolver SOFR+575, 1.00% Floor Maturity Date 02/27/262022-12-310001278752mfic:RiskOfRenductionInAssetCoverageRequirementMayIncreaseRiskOfInvestingMember2023-01-012023-12-310001278752Celerion Buyer, Inc.2023-12-3100012787521244311 B.C. Ltd. | Common Equity - Common Stock2022-01-012022-12-310001278752Controlled Investments ChyronHego US Holding Corporation, Revolver2023-12-310001278752AQ Sunshine, Inc. Letters of Credit2022-12-310001278752Surf Opco, LLC, Letters of Credit2022-12-310001278752Manufacturing, Capital Equipment Kauffman Kauffman Holdco, LLC Common Equity - Common Stock2022-12-310001278752Chemicals, Plastics & Rubber Carbonfree Chemicals SPE I LLC (f/k/a Maxus Capital Carbon Carbonfree Chemicals Holdings LLC Common Equity - Common Equity / Interest2022-12-310001278752Healthcare & Pharmaceuticals Unchained Labs Unchained Labs, LLC First Lien Secured Debt - Revolver SOFR+550, 1.00% Floor Maturity Date 08/09/272022-12-310001278752srt:MaximumMemberus-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:PreferredStockMembermfic:MeasurementInputComparableMultipleMember2023-12-310001278752Healthcare & Pharmaceuticals WellDyneRx, LLC WelldyneRX, LLC First Lien Secured Debt - Revolver SOFR+675, 0.75% Floor Maturity Date 03/09/262022-12-310001278752Trench Plate Rental Co., Undrawn Commitment2022-12-310001278752mfic:ChyronHegoCorporationMember2023-12-310001278752Controlled Investments, Aviation and Consumer Transport2023-12-310001278752Non-Controlled/Non-Affiliated Investments, High Tech Industries, Common Equity/Interests2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment, Common Equity/Interests2023-12-310001278752Affiliated Investments 1244311 B.C. Ltd., Common Stock2023-12-310001278752Healthcare & Pharmaceuticals Maxor National Pharmacy Services, LLC 2022-12-310001278752Sonar Entertainment, Inc.2022-12-310001278752Surf Opco, LLC2022-12-310001278752Unchained Labs, LLC, Undrawn Commitment2022-12-310001278752Activ Software Holdings, LLC2023-12-310001278752Affiliated Investments Pelican Energy, LLC, Common Stock2022-12-310001278752Consumer Services Renovo 2023-12-310001278752mfic:TwoThousandFortyThreeNotesMember2016-04-012017-03-310001278752Healthcare & Pharmaceuticals Celerion Celerion Buyer, Inc. First Lien Secured Debt SOFR+650, 0.75% Floor Maturity Date 11/05/292022-12-310001278752Insurance High Street Insurance2022-12-310001278752Business Services IRP Precision Refrigeration & Air Conditioning LLC First Lien Secured Debt - Revolver SOFR+600, 1.00% Floor Maturity Date 03/08/272022-12-310001278752Alpinex Opco, LLC, Undrawn Commitment2023-12-310001278752Health Management Associates Superholdings, Inc.2023-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods - Durable2022-12-310001278752Consumer Goods - Non-durable LashCo Lash OpCo, LLC First Lien Secured Debt L+700, 1.00% Floor Maturity Date 03/18/262022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2015-04-012016-03-310001278752mfic:RisksRelatingToTheMergersMember2023-01-012023-12-310001278752mfic:RiskRelatedToOurFailureToMakeFollowOnInvestmentsInOurPortfolioCompaniesMember2023-01-012023-12-310001278752Business Services IRP SMC IR Holdings, LLC Common Equity - Common Stock2023-12-310001278752us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembermfic:SeniorSecuredFacilityMembersrt:MinimumMember2023-01-012023-12-310001278752Graffiti Buyer, Inc.2023-12-310001278752HEF Safety Ultimate Holdings, LLC2023-12-310001278752Consumer Goods - Non-durable Suave2023-12-310001278752Alcami Corporation, Undrawn Commitment2022-12-310001278752Non-Controlled/Affiliated Investments, Preferred Equity2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services, Second Lien - Secured Debt2022-12-310001278752High Tech Industries ChyronHego Corporation ChyronHego Corporation First Lien Secured Debt - Revolver L+500, 1.00% Floor Maturity Date 12/31/242022-12-310001278752Transportation - Cargo, Distribution Beacon Mobility Beacon Mobility Corp. 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First Lien Secured Debt L+600, 1.00% Floor Maturity Date 01/31/272022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2017-06-300001278752mfic:ConvertibleNotesMember2021-04-012022-03-310001278752Automotive Club Car Wash2022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-03-180001278752mfic:TwoThousandFortyTwoNotesMember2015-04-012016-03-310001278752Liqui-Box Holdings, Inc.2022-12-310001278752mfic:RiskOfCurrentStateOfEconomyAndVolatilityInTheGlobalFinancialMarketsMember2023-01-012023-12-310001278752mfic:TwoThousandTwentyEightNotesMember2017-04-012018-03-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc.2022-12-310001278752mfic:SeniorSecuredFacilityMember2022-03-310001278752mfic:ApolloInvestmentManagementLPMember2021-04-012022-03-310001278752Kauffman Intermediate, LLC, Undrawn Commitment2023-12-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-12-310001278752Alcami Corporation2023-12-310001278752mfic:StructuredProductsAndOtherMember2022-12-310001278752Carbonfree Chemicals Holdings LLC | Common Equity - Common Equity / Interest2022-01-012022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMember2023-01-012023-12-310001278752Controlled Investments, Preferred Equity2023-12-310001278752KL Charlie Acquisition Company, Undrawn Commitment2022-12-310001278752Aviation and Consumer Transport Merx Aviation Finance, LLC First Lien Secured Debt - Revolver 10.00% Maturity Date 10/31/232022-12-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc. Swisstech IP CO, LLC First Lien Secured Debt 6.00% PIK Maturity Date 11/09/242023-12-3100012787521 Months SOFR Loans | 1 Month SOFR2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Hotel, Gaming, Leisure, Restaurants2022-12-3100012787522020-04-012021-03-310001278752us-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMembermfic:MeasurementInputSaleProceedsMembermfic:ValuationTechniqueSaleProceedsMember2022-12-310001278752Healthcare & Pharmaceuticals EmpiRx EmpiRx Health LLC First Lien Secured Debt L+500, 1.00% Floor Maturity Date 08/05/272022-12-310001278752A&V Holdings Midco, LLC, Undrawn Commitment2023-12-310001278752Aviation and Consumer Transport Primeflight PrimeFlight Acquisition, LLC First Lien Secured Debt SOFR+685, 1.00% Floor Maturity Date 05/01/292023-12-310001278752Business Services US Legal Support USLS Acquisition, Inc. 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First Lien Secured Debt SOFR+650, 1.00% Floor Maturity Date 11/03/292023-12-310001278752Gabriel Partners, LLC2023-12-310001278752Lifelong Learner Holdings, LLC, Undrawn Commitment2023-12-310001278752mfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMembermfic:MeasurementInputComparableMultipleMembersrt:MinimumMember2022-12-310001278752Affiliated Investments AIC SPV Holdings II, LLC, Preferred Equity2022-04-012022-12-310001278752High Tech Industries Calero Holdings, Inc. Telesoft Holdings, LLC First Lien Secured Debt - Revolver L+575, 1.00% Floor Maturity Date 12/16/252022-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:FeeOffsetAgreementMember2022-04-012022-12-310001278752Automotive Club Car Wash Club Car Wash Operating, LLC First Lien Secured Debt SOFR+665, 1.00% Floor Maturity Date 06/16/272023-12-310001278752Medical Guardian, LLC2023-12-310001278752Business Services Trench Plate Trench Plate Rental Co. 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(fka Newscycle Solutions, Inc.)2023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentyEightMember2023-12-132023-12-130001278752Consumer Services US Auto2022-12-310001278752us-gaap:UnsecuredDebtMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-12-310001278752High Tech Industries New Era Technology, Inc. New Era Technology, Inc. First Lien Secured Debt - Revolver L+625, 1.00% Floor Maturity Date 10/30/262022-12-310001278752mfic:FirstLienSecuredDebtMember2022-12-310001278752GB001, Inc., Undrawn Commitment2022-12-310001278752Partner Therapeutics, Inc., Undrawn Commitment2022-12-310001278752Beverage, Food & Tobacco Rise Baking Ultimate Baked Goods Midco LLC First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 08/13/272023-12-310001278752Controlled Investments ChyronHego Corporation, Term Loan2022-03-310001278752mfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Member2023-12-310001278752mfic:SeniorSecuredFacilityMember2018-04-040001278752Aviation and Consumer Transport Merx Aviation Finance, LLC2023-12-310001278752High Tech Industries Simeio Simeio Group Holdings, Inc. First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 02/02/262022-12-310001278752Healthcare & Pharmaceuticals TELA Bio, Inc. TELA Bio, Inc. 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New Era Technology, Inc. First Lien Secured Debt - Revolver SOFR+640, 1.00% Floor Maturity Date 10/31/262023-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMemberus-gaap:WarrantMembermfic:MeasurementInputExpectedVolatilityMember2023-12-310001278752Consumer Services Lending Point Lending Point LLC First Lien Secured Debt SOFR+1065, 1.00% Floor Maturity Date 12/30/262023-12-310001278752Diversified & Production Sonar Entertainment Sonar Entertainment, Inc. 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First Lien Secured Debt SOFR+575, 1.00% Floor Maturity Date 08/31/262022-12-310001278752us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2022-03-310001278752Healthcare & Pharmaceuticals Compass Health Roscoe Medical, Inc First Lien Secured Debt - Revolver SOFR+625, 1.00% Floor Maturity Date 09/30/242022-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods – Non-durable, Preferred Equity2022-12-310001278752Automotive Club Car Wash Club Car Wash Operating, LLC First Lien Secured Debt SOFR+650, 1.00% Floor Maturity Date 06/16/272022-12-310001278752Warrants2023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentyFiveMember2022-01-012022-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2017-03-310001278752mfic:SECRule10b51RepurchasePlanMember2021-03-302021-03-300001278752Non-Controlled/Non-Affiliated Investments, Diversified Investment Vehicles, Banking, Finance, Real Estate, First Lien - Secured Debt2023-12-310001278752Wholesale Thomas Scientific2022-12-310001278752Total Commitments, Undrawn Commitment2022-12-310001278752us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2023-12-310001278752mfic:UncertaintyRelatingToTheUSAndGlobalEconomyMember2023-01-012023-12-310001278752Chemicals, Plastics & Rubber Carbonfree Chemicals SPE I LLC (f/k/a Maxus Capital Carbon FC2 LLC Common Equity - Common Stock2022-12-310001278752us-gaap:WarrantMember2023-12-310001278752Healthcare & Pharmaceuticals LucidHealth Premier Imaging, LLC First Lien Secured Debt L+575, 1.00% Floor Maturity Date 01/02/252022-12-310001278752High Tech Industries Springbrook Springbrook Holding Company, LLC First Lien Secured Debt SOFR+661, 1.00% Floor Maturity Date 12/23/262023-12-310001278752SI Holdings, Inc.2022-12-310001278752Advertising Printing & Publishing Hero Digital HRO (Hero Digital) Holdings, LLC First Lien Secured Debt L+600, 1.00% Floor Maturity Date 11/18/282022-12-310001278752Construction & Building Englert Gutter Holdings, LP Common Equity - Common Stock2022-12-310001278752Bird Rides, Inc.2023-12-310001278752Healthcare & Pharmaceuticals TersSera2023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentySixMember2021-07-160001278752mfic:MficbethesdacloonellcdebtsecuritizationMember2023-11-020001278752mfic:MerxAviationFinanceLLCMember2023-04-012023-12-310001278752Wildcat BuyerCo, Inc.2023-12-310001278752mfic:ChyronHegoCorporationMember2022-12-310001278752mfic:TwoThousandTwentySixNotesMember2020-03-310001278752PHS Buyer, Inc., Undrawn Commitment2022-12-310001278752Unsecured Debt2023-12-310001278752mfic:SeniorSecuredNotesMember2023-01-012023-12-310001278752mfic:SeniorSecuredFacilityMembercurrency:GBP2023-01-012023-12-310001278752Non-Controlled/Non-Affiliated Investments, Wholesale, Common Equity/Interests2023-12-310001278752Eldrickco Limited*, Undrawn Commitment2023-12-310001278752High Tech Industries Springbrook Springbrook Holding Company, LLC First Lien Secured Debt L+550, 1.00% Floor Maturity Date 12/23/262022-12-310001278752mfic:InsuranceMember2022-12-310001278752Controlled Investments, Warrants2022-12-310001278752us-gaap:InvestmentUnaffiliatedIssuerMember2022-04-012022-12-310001278752Transportation - Cargo, Distribution IronClad2023-12-310001278752Healthcare & Pharmaceuticals PHS2022-12-310001278752Healthcare & Pharmaceuticals US Fertility US Fertility Enterprises, LLC First Lien Secured Debt - Revolver SOFR+651, 1.00% Floor Maturity Date 12/21/272023-12-310001278752New Era Technology, Inc., Undrawn Commitment2022-12-310001278752Go Car Wash Management Corp., Undrawn Commitment2023-12-310001278752mfic:StructuredProductsAndOtherMemberus-gaap:FairValueInputsLevel3Member2022-03-310001278752Healthcare & Pharmaceuticals Akoya Akoya Biosciences, Inc. First Lien Secured Debt SOFR+680, 2.50% Floor Maturity Date 11/01/272022-12-310001278752Affiliated Investments 1244311 B.C. Ltd., Common Stock2023-01-012023-12-310001278752Owl Parent Holdings, LLC | Common Equity - Common Stock2022-01-012022-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment, First Lien - Secured Debt2023-12-310001278752Omada Health, Inc., Undrawn Commitment2023-12-310001278752Consumer Services Lending Point2022-12-310001278752Total Commitments, Undrawn Commitment2023-12-310001278752Controlled Investments, Structured Products and Other2023-12-310001278752Healthcare & Pharmaceuticals Gateway Services Gateway US Holdings, Inc. First Lien Secured Debt SOFR+665, 0.75% Floor Maturity Date 09/22/262023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Durable, First Lien - Secured Debt2023-12-310001278752Affiliated Investments FC2 LLC, Term Loan2023-12-310001278752Consumer Services Go Car Wash Go Car Wash Management Corp. First Lien Secured Debt - Revolver SOFR+575, 1.00% Floor Maturity Date 12/31/262022-12-310001278752Business Services2022-12-310001278752Controlled Investments, Transportation - Cargo, Distribution, Common Equity/Interests2023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2022-01-012022-12-310001278752Beverage, Food & Tobacco Nutpods2023-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:FeeOffsetAgreementMembersrt:MinimumMember2019-01-160001278752Non-Controlled/Affiliated Investments, Chemicals, Plastics & Rubber2023-12-310001278752High Tech Industries Digital.ai Digital.ai Software Holdings, Inc. First Lien Secured Debt SOFR+710, 1.00% Floor Maturity Date 02/10/272023-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco2023-12-310001278752Healthcare & Pharmaceuticals Compass Health Roscoe Medical, Inc First Lien Secured Debt - Revolver SOFR+636, 1.00% Floor Maturity Date 09/30/242023-12-310001278752Healthcare & Pharmaceuticals Analogic Analogic Corporation First Lien Secured Debt L+525, 1.00% Floor Maturity Date 06/22/242022-12-310001278752Non-Controlled/Affiliated Investments, Energy - Oil & Gas, Common Equity/Interests2022-12-310001278752Healthcare & Pharmaceuticals KureSmart Clearway Corporation (f/k/a NP/Clearway Holdings, Inc.) 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First Lien Secured Debt SOFR+600, 1.00% Floor Maturity Date 04/01/272022-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco, Preferred Equity2022-12-310001278752Consumer Goods - Durable2023-12-310001278752Healthcare & Pharmaceuticals Cerus Cerus Corporation First Lien Secured Debt - Revolver SOFR+375, 1.80% Floor Maturity Date 03/01/242022-12-310001278752Insurance PGM Holdings Corporation Turbo Buyer, Inc. 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Ltd. Common Equity - Common Stock2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Utilities - Electric, First Lien - Secured Debt2022-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Golden Bear Golden Bear 2016-R, LLC Structured Products and Other - Membership Interests Maturity Date 09/20/422023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentyFiveMember2022-12-310001278752Manufacturing, Capital Equipment Kauffman Kauffman Holdco, LLC Common Equity - Common Stock2023-12-310001278752us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMembermfic:MficbethesdacloonellcdebtsecuritizationMembermfic:ClassATwoNotesMember2023-01-012023-12-310001278752Protein For Pets Opco, LLC2023-12-310001278752mfic:RiskRelatedToMarketPriceOfOurSecuritiesMember2023-01-012023-12-310001278752Pace Health Companies, LLC, Letters of Credit2023-12-310001278752Affiliated Investments Renew JV LLC, Membership Interests2022-03-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueMarketComparableTechniqueMembermfic:MeasurementInputComparableMultipleMembersrt:WeightedAverageMember2022-12-310001278752Utilities - Electric Congruex Congruex Group LLC First Lien Secured Debt SOFR+575, 0.75% Floor Maturity Date 05/03/292022-12-310001278752Transportation - Cargo, Distribution MSEA Tankers LLC MSEA Tankers LLC (5) Common Equity - Class A Units2023-12-310001278752Business Services Accelerate Learning Eagle Purchaser, Inc. First Lien Secured Debt SOFR+675, 1.00% Floor Maturity Date 03/22/302023-12-310001278752Construction & Building2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Wholesale2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Aviation and Consumer Transport2023-12-310001278752Transportation - Cargo, Distribution Beacon Mobility2023-12-310001278752Healthcare & Pharmaceuticals Akoya Akoya Biosciences, Inc. First Lien Secured Debt SOFR+691, 2.50% Floor Maturity Date 11/01/272023-12-310001278752mfic:SeniorSecuredNotesMember2021-04-012022-03-310001278752Consumer Goods - Durable NSi Industries2022-12-310001278752Automotive Crowne Automotive Vari-Form Inc. First Lien Secured Debt 11.00% (7.00% Cash plus 4.00% PIK) Maturity Date 02/02/232022-12-310001278752Treace Medical Concepts, Inc., Undrawn Commitment2022-12-310001278752LS Clinical Services Holdings, Inc.2023-12-310001278752Chemicals, Plastics & Rubber Westfall Technik, Inc.2022-12-310001278752Healthcare & Pharmaceuticals Midwest Vision Midwest Vision Partners Management, LLC First Lien Secured Debt - Revolver L+650, 1.00% Floor Maturity Date 01/12/272022-12-310001278752Non-Controlled/Non-Affiliated Investments, High Tech Industries, First Lien - Secured Debt2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco, Preferred Equity2023-12-310001278752Structured Products and Other2023-12-3100012787522021-04-012022-03-310001278752Affiliated Investments 1244311 B.C. Ltd., Term Loan2022-04-012022-12-310001278752mfic:FirstLienSecuredDebtMembermfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2023-12-310001278752CircusTrix Holdings LLC2023-12-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. First Lien Secured Debt - Revolver SOFR+710, 1.00% Floor Maturity Date 02/01/252023-12-310001278752mfic:SeniorSecuredFacilityMember2022-01-012022-12-310001278752Healthcare & Pharmaceuticals CNSI Acentra Holdings, LLC (fka CNSI Holdings, LLC) First Lien Secured Debt SOFR+650, 0.50% Floor Maturity Date 12/17/282023-12-310001278752High Tech Industries Acronis AG ACRONIS AG First Lien Secured Debt L+585, 1.00% Floor Maturity Date 04/01/272022-12-310001278752us-gaap:InvestmentUnaffiliatedIssuerMember2023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Celink2023-12-310001278752Paladone Group Bidco Limited*, Undrawn Commitment2022-12-310001278752mfic:RestrictedSecuritiesMember2022-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI HALO Acquisition, Inc. 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First Lien Secured Debt - Revolver SOFR+575, 1.00% Floor Maturity Date 12/02/242022-12-310001278752Healthcare & Pharmaceuticals CNSI2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMember2022-03-310001278752mfic:SECRule10b51RepurchasePlanMember2017-10-020001278752mfic:RiskOfSignificantIncreaseInTheCostOfUtilizingOverTheCounterDerivativesMember2023-01-012023-12-310001278752Controlled Investments, Transportation - Cargo, Distribution2023-12-310001278752mfic:AerospaceAndDefenseMember2022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMemberus-gaap:WarrantMembermfic:MeasurementInputExpectedVolatilityMember2022-12-310001278752High Tech Industries American Megatrends2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMemberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMembermfic:MeasurementInputExpectedVolatilityMember2022-12-310001278752Affiliated Investments2023-01-012023-12-310001278752Healthcare & Pharmaceuticals Cato Research LS Clinical Services Holdings, Inc. First Lien Secured Debt SOFR+651 Cash plus 1.00% PIK, 1.00% Floor Maturity Date 12/16/272023-12-310001278752Consumer Goods - Durable Liqui-Box Liqui-Box Holdings, Inc. First Lien Secured Debt - Revolver P+350 Maturity Date 02/26/252022-12-310001278752mfic:CommonEquityInterestsMember2023-12-310001278752Energy - Oil & Gas2023-12-310001278752Pace Health Companies, LLC, Undrawn Commitment2023-12-310001278752mfic:TwoThousandTwentySixNotesMember2018-03-310001278752Healthcare & Pharmaceuticals 83bar 83Bar, Inc. First Lien Secured Debt SOFR+586, 1.50% Floor Maturity Date 07/02/262023-12-310001278752Unsecured Debt2022-12-310001278752PARS Group LLC, Undrawn Commitment2022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2022-03-310001278752Controlled Investments, Unsecured Debt2023-12-310001278752PARS Group LLC2022-12-310001278752 Consumer Services Clarus Commerce Marlin DTC-LS MIDCO2, LLC First Lien Secured Debt - Revolver SOFR+660, 1.00% Floor Maturity Date 07/01/252023-12-310001278752Non-Controlled/Non-Affiliated Investments, Telecommunications2023-12-310001278752Consumer Services Lending Point Lending Point LLC First Lien Secured Debt - Revolver SOFR+590, 1.00% Floor Maturity Date 12/30/262023-12-310001278752Activ Software Holdings, LLC, Undrawn Commitment2023-12-310001278752srt:MaximumMember2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Aerospace & Defense2022-12-310001278752Renew Financial LLC (f/k/a Renewable Funding, LLC) | Preferred Equity | Preferred Equity - Series D Preferred Stock2022-01-012022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2021-03-310001278752Utilities – Electric2023-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods - Durable, Common Equity/Interests2022-12-310001278752Lifelong Learner Holdings, LLC, Undrawn Commitment2022-12-310001278752HRO (Hero Digital) Holdings, LLC2023-12-310001278752Energy - Electricity Renew Financial LLC (f/k/a Renewable Funding, LLC) Renew Financial LLC (f/k/a Renewable Funding, LLC) Preferred Equity - Preferred Equity2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Hotel, Gaming, Leisure, Restaurants, First Lien - Secured Debt2023-12-310001278752mfic:RiskRelatedToExperienceFluctuationsInPeriodicResultsMember2023-01-012023-12-310001278752Automotive Truck-Lite Co., LLC TL Lighting Holdings, LLC Common Equity2022-12-310001278752us-gaap:PreferredStockMember2023-12-310001278752High Tech Industries Calero Holdings, Inc.2022-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods - Durable, Common Equity/Interests2023-12-310001278752mfic:ValuationTechniqueYieldAnalysisMembermfic:StructuredProductsAndOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2023-12-310001278752Business Services Naviga Naviga Inc. (fka Newscycle Solutions, Inc.) First Lien Secured Debt - Revolver SOFR+710, 1.00% Floor Maturity Date 02/27/242023-12-310001278752Trench Plate Rental Co., Letters of Credit2022-12-310001278752Controlled Investments, Transportation – Cargo, Distribution2023-12-310001278752Healthcare & Pharmaceuticals Cato Research LS Clinical Services Holdings, Inc. First Lien Secured Debt - Revolver L+675, 1.00% Floor Maturity Date 12/16/262022-12-310001278752Healthcare & Pharmaceuticals Gateway Services Gateway US Holdings, Inc. First Lien Secured Debt - Revolver SOFR+650, 0.75% Floor Maturity Date 09/22/262022-12-310001278752Energy - Oil & Gas2022-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Spectrum Automotive Shelby 2021 Holdings Corp. First Lien Secured Debt L+575, 0.75% Floor Maturity Date 06/29/282022-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMemberus-gaap:ValuationTechniqueOptionPricingModelMembermfic:MeasurementInputExpectedVolatilityMembersrt:WeightedAverageMember2023-12-310001278752Springbrook Holding Company, LLC, Undrawn Commitment2022-12-310001278752Healthcare & Pharmaceuticals Carbon6 Carbon6 Technologies, Inc. Preferred Equity - Preferred Equity2022-12-310001278752KL Charlie Acquisition Company2022-12-3100012787522022-10-012022-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2020-03-310001278752Healthcare & Pharmaceuticals Health & Safety Institute2023-12-310001278752Beverage, Food & Tobacco, Rise Baking2023-12-310001278752Advertising Printing & Publishing FingerPaint Marketing KL Charlie Acquisition Company First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 12/30/262023-12-310001278752mfic:SeniorSecuredFacilityMember2017-03-310001278752mfic:StructuredProductsAndOtherMemberus-gaap:FairValueInputsLevel3Member2022-12-310001278752mfic:SecondLienSecuredDebtMember2023-12-310001278752Controlled Investments2022-12-310001278752mfic:AdministrationAgreementMembermfic:ApolloInvestmentAdministrationLimitedLiabilityCompanyMember2023-12-310001278752Hotel, Gaming, Leisure, Restaurants PARS Group LLC PARS Group LLC First Lien Secured Debt SOFR+675, 1.50% Floor Maturity Date 04/03/282022-12-310001278752Naviga Inc. (fka Newscycle Solutions, Inc.)2022-12-310001278752Manufacturing, Capital Equipment Kauffman Kauffman Intermediate, LLC First Lien Secured Debt SOFR+585, 1.00% Floor Maturity Date 05/08/252023-12-310001278752mfic:TwoThousandTwentySixNotesMember2017-03-310001278752Healthcare & Pharmaceuticals Unchained Labs2022-12-310001278752Healthcare & Pharmaceuticals TELA Bio, Inc. TELA Bio, Inc. First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 05/01/272023-12-310001278752Business Services PSE2023-12-310001278752Controlled Investments ChyronHego Corporation, Preferred Equity2022-12-310001278752Transportation - Cargo, Distribution Beacon Mobility Beacon Mobility Corp. First Lien Secured Debt - Revolver 4.10% Maturity Date 05/22/242023-12-310001278752Merx Aviation Finance, LLC, Letters of Credit2022-12-310001278752Healthcare & Pharmaceuticals Cerus Cerus Corporation First Lien Secured Debt SOFR+545, 1.80% Floor Maturity Date 03/01/242022-12-310001278752mfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMembermfic:MeasurementInputComparableMultipleMember2023-12-310001278752us-gaap:CommonStockMember2018-10-302018-10-300001278752AQ Sunshine, Inc.2022-12-310001278752Club Car Wash Operating, LLC2022-12-310001278752Upstack Holdco Inc., Undrawn Commitment2022-12-310001278752Business Services Jacent2022-12-310001278752Controlled Investments SHD Oil & Gas, LLC, Series C Units2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Energy - Electricity, Preferred Equity2022-12-310001278752us-gaap:GeneralAndAdministrativeExpenseMembermfic:MerxAviationFinanceLLCMember2023-01-012023-12-310001278752mfic:RiskOfHighlyLeveragedPortfolioCompaniesMember2023-01-012023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Non-durable, Preferred Equity2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Warrants2023-12-310001278752mfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Member2022-04-012022-12-310001278752Turbo Buyer, Inc., Undrawn Commitment2022-12-310001278752Business Services IRP Precision Refrigeration & Air Conditioning LLC First Lien Secured Debt SOFR+650, 1.00% Floor Maturity Date 03/08/282022-12-310001278752Beverage, Food & Tobacco2023-12-310001278752Energy - Electricity Renew Financial LLC (f/k/a Renewable Funding, LLC) Renew Financial LLC (f/k/a Renewable Funding, LLC) Common Equity - Common Stock2022-12-310001278752Cave Enterprises Operations, LLC2023-12-310001278752Healthcare & Pharmaceuticals Maxor National Pharmacy Services, LLC First Lien Secured Debt - Revolver SOFR+700, 1.00% Floor Maturity Date 03/01/292023-12-310001278752mfic:TwoThousandTwentyEightNotesMember2022-03-310001278752Healthcare & Pharmaceuticals KureSmart Clearway Corporation (f/k/a NP/Clearway Holdings, Inc.) Common Equity - Common Stock2023-12-3100012787522015-08-052015-08-050001278752Business Services Smith System Smith Topco, Inc. First Lien Secured Debt - Revolver SOFR+600, 1.00% Floor Maturity Date 11/06/292023-12-310001278752mfic:ConvertibleNotesMember2023-01-012023-12-310001278752Controlled Investments, Transportation - Cargo, Distribution2022-12-310001278752mfic:RiskOfOurBusinessRequiresASubstantialAmountOfCapitalToGrowMember2023-01-012023-12-310001278752A&V Holdings Midco, LLC2023-12-3100012787523 Months LIBOR Loans | 3 Month LIBOR2022-12-310001278752Chemicals, Plastics & Rubber Westfall Technik, Inc.2023-12-310001278752mfic:TwoThousandFortyTwoNotesMember2023-01-012023-12-310001278752Consumer Goods - Non-durable LashCo Lash OpCo, LLC First Lien Secured Debt SOFR+710, 1.00% Floor Maturity Date 03/18/262023-12-310001278752mfic:RiskOfChangeInFactorsAffectingMarketPriceOfCommonStockMember2023-01-012023-12-310001278752Healthcare & Pharmaceuticals Maxor National Pharmacy Services, LLC First Lien Secured Debt L+525, 1.00% Floor Maturity Date 12/06/272022-12-310001278752Healthcare & Pharmaceuticals Gateway Services Gateway US Holdings, Inc. First Lien Secured Debt SOFR+650, 0.75% Floor Maturity Date 09/22/262022-12-310001278752Non-Controlled/Non-Affiliated Investments, Healthcare & Pharmaceuticals, Common Equity/Interest2023-12-310001278752mfic:RiskRelatedToMidcapFinancialMember2023-01-012023-12-310001278752Energy - Electricity Solarplicity Group Limited (f/k/a AMP Solar UK) Solarplicity UK Holdings Limited Common Equity - Ordinary Shares2022-12-310001278752Advertising, Printing & Publishing2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Durable, Common Equity/Interests2022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2018-04-012019-03-310001278752Renew Financial LLC (f/k/a Renewable Funding, LLC) | Preferred Equity - Preferred Equity2022-01-012022-12-310001278752Celerion Buyer, Inc., Undrawn Commitment2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Durable, First Lien - Secured Debt2022-12-310001278752Healthcare & Pharmaceuticals Midwest Vision Midwest Vision Partners Management, LLC First Lien Secured Debt - Revolver SOFR+665, 1.00% Floor Maturity Date 01/12/272023-12-310001278752mfic:ConsumerGoodsDurableMember2022-12-310001278752GB001, Inc.2023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentySixMember2022-01-012022-12-310001278752Consumer Services Clarus Commerce2023-12-310001278752mfic:RiskRelatedChangesInLawsOrRegulationsMember2023-01-012023-12-310001278752Insurance PGM Holdings Corporation 2022-12-310001278752Non-Controlled/Affiliated Investments, Energy - Oil & Gas2022-12-310001278752mfic:TwoThousandTwentyEightNotesMember2016-04-012017-03-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc. Gainline Galaxy Holdings LLC Common Equity - Common Stock2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services, First Lien - Secured Debt2022-12-310001278752mfic:SeniorSecuredFacilityMember2019-04-040001278752Paladone Group Bidco Limited, Undrawn Commitment2022-12-310001278752mfic:UtilitiesElectricMember2022-12-310001278752mfic:RiskRelatedToInvestmentInOurDebtSecuritiesMember2023-01-012023-12-310001278752J.P. Morgan U.S. Government Money Market Fund2023-12-310001278752Healthcare & Pharmaceuticals Cato Research LS Clinical Services Holdings, Inc. First Lien Secured Debt L+675, 1.00% Floor Maturity Date 12/16/272022-12-310001278752Healthcare & Pharmaceuticals EmpiRx2023-12-310001278752Business Services Naviga Naviga Inc. (fka Newscycle Solutions, Inc.) First Lien Secured Debt SOFR+700, 1.00% Floor Maturity Date 12/29/232022-12-310001278752CNSI Holdings, LLC, Undrawn Commitment2022-12-310001278752mfic:RiskRelatedToIncomeMember2023-01-012023-12-310001278752Beverage, Food & Tobacco Berner Foods2023-12-310001278752Healthcare & Pharmaceuticals Mannkind Corporation2023-12-310001278752us-gaap:PreferredStockMemberus-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueRecoveryAnalysisMembermfic:MeasurementInputRecoverableAmountMember2022-12-310001278752High Tech Industries Dairy.com2023-12-310001278752Consumer Goods - Non-durable Village Pet Care2023-12-310001278752Manufacturing, Capital Equipment Kauffman2022-12-310001278752Healthcare & Pharmaceuticals Treace Treace Medical Concepts, Inc. First Lien Secured Debt - Revolver SOFR+400, 1.00% Floor Maturity Date 04/01/272022-12-310001278752Healthcare & Pharmaceuticals Cato Research2023-12-310001278752Wholesale Thomas Scientific Thomas Scientific, LLC First Lien Secured Debt L+550, 1.00% Floor Maturity Date 12/14/272022-12-310001278752mfic:FirstLienSecuredDebtMembermfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752srt:MaximumMembermfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMembermfic:MeasurementInputComparableMultipleMember2022-12-310001278752Non-Controlled/Non-Affiliated Investments Advertising, Printing & Publishing, Common Equity/Interests2022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2019-03-310001278752mfic:SeniorSecuredNotesMember2020-03-310001278752Upstack Holdco Inc.2022-12-310001278752Insurance Relation Insurance AQ Sunshine, Inc. First Lien Secured Debt SOFR+625, 1.00% Floor Maturity Date 04/15/252022-12-310001278752Beverage, Food & Tobacco Bolthouse Farms Wm. Bolthouse Farms, Inc. Common Equity - Equity Interests2023-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2017-03-310001278752Beverage, Food & Tobacco Orgain, Inc. Butterfly Fighter Co-Invest, L.P. Common Equity - Membership Interests2022-12-310001278752Roscoe Medical, Inc2023-12-310001278752Beacon Mobility Corp. Undrawn Commitment2023-12-310001278752mfic:SeniorSecuredNotesMember2022-03-310001278752mfic:ValuationTechniqueYieldAnalysisMembermfic:StructuredProductsAndOtherMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752Consumer Goods - Non-durable LashCo2023-12-310001278752Controlled Investments Merx Aviation Finance, LLC, Revolver2023-12-310001278752Hotel, Gaming, Leisure, Restaurants Cave Cave Enterprises Operations, LLC First Lien Secured Debt SOFR+660, 1.50% Floor Maturity Date 08/09/282023-12-310001278752Bird Rides, Inc., Undrawn Commitment2023-12-310001278752us-gaap:FairValueInputsLevel3Member2022-03-310001278752Advertising Printing & Publishing Hero Digital HRO Holdings I LP Common Equity - Common Stock2023-12-310001278752Controlled Investments ChyronHego Corporation, Revolver2022-04-012022-12-310001278752mfic:RiskOfNotInPositionToExerciseControlOverOurPortfolioCompaniesMember2023-01-012023-12-310001278752mfic:ChyronHegoCorporationMember2022-12-310001278752Banner Buyer, LLC2023-12-310001278752EmpiRx Health LLC, Undrawn Commitment2023-12-3100012787522022-08-020001278752Turbo Buyer, Inc., Undrawn Commitment2023-12-310001278752mfic:ClassAOneNotesMembermfic:MficbethesdacloonellcdebtsecuritizationMember2023-01-012023-12-310001278752us-gaap:InvestmentUnaffiliatedIssuerMember2023-01-012023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2016-09-300001278752Paladone Group Bidco Limited2023-12-310001278752mfic:AffiliatedInvestmentsMembersrt:MinimumMember2023-12-31000127875212 Months LIBOR Loans | 12 Month LIBOR2022-12-310001278752Construction & Building Englert Gutter Holdings, LP Common Equity - Common Stock2023-12-310001278752us-gaap:InvestmentUnaffiliatedIssuerMember2021-04-012022-03-310001278752Healthcare & Pharmaceuticals Unchained Labs Unchained Labs, LLC First Lien Secured Debt SOFR+555, 1.00% Floor Maturity Date 08/09/272023-12-310001278752Healthcare & Pharmaceuticals KureSmart Kure Pain Holdings, Inc. First Lien Secured Debt L+500, 1.00% Floor Maturity Date 08/27/242022-12-310001278752Jacent Strategic Merchandising2023-12-310001278752Truck-Lite Co., LLC, Undrawn Commitment2023-12-310001278752THLP CO. LLC2022-12-310001278752Consumer Goods - Non-durable Paladone Paladone Group Bidco Limited First Lien Secured Debt - Revolver L+575, 1.00% Floor Maturity Date 11/12/272022-12-310001278752mfic:ClaimExemptionFromBeingDeemedMember2023-01-012023-12-310001278752Chemicals, Plastics & Rubber Westfall Technik, Inc. First Lien Secured Debt - Revolver SOFR+625, 1.00% Floor Maturity Date 09/13/242022-12-310001278752Simeio Group Holdings, Inc., Undrawn Commitment2022-12-310001278752ChyronHego Corporation | Preferred Equity - Preferred Equity2023-01-012023-12-310001278752mfic:WholesaleMember2022-12-310001278752Transportation - Cargo, Distribution Heniff and Superior Heniff Holdco, LLC First Lien Secured Debt - Revolver SOFR+585, 1.00% Floor Maturity Date 12/03/242023-12-310001278752Business Services SEER2023-12-310001278752Protein For Pets Opco, LLC2022-12-310001278752Non-Controlled/Affiliated Investments, Structured Products and Other2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Common Equity/Interests2023-12-310001278752Healthcare & Pharmaceuticals Medical Guardian2023-12-310001278752mfic:AdministrationAgreementMembermfic:ApolloInvestmentAdministrationLimitedLiabilityCompanyMember2023-01-012023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Celink Compu-Link Corporation First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 06/11/242022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2018-01-030001278752Cerus Corporation2023-12-310001278752LendingPoint LLC2023-12-310001278752Transportation - Cargo, Distribution Beacon Mobility Beacon Mobility Corp. First Lien Secured Debt- Revolver L+550, 1.00% Floor Maturity Date 05/22/242022-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment, Preferred Equity2023-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods – Durable, Common Equity/Interests2023-12-310001278752Healthcare & Pharmaceuticals Unchained Labs Unchained Labs, LLC First Lien Secured Debt SOFR+550, 1.00% Floor Maturity Date 08/09/272022-12-310001278752Manufacturing, Capital Equipment AVAD, LLC Surf Opco, LLC Preferred Equity - Class P-2 Preferred2022-12-310001278752Healthcare & Pharmaceuticals Alcami Alcami Corporation First Lien Secured Debt - Revolver SOFR+700, 1.00% Floor Maturity Date 12/21/282022-12-310001278752mfic:AffiliatedInvestmentsMember2023-12-310001278752Business Services Avenu2023-12-310001278752Business Services Access Information Access CIG, LLC Second Lien Secured Debt L+775, 0.00% Floor Maturity Date 02/27/262023-12-310001278752Affiliated Investments Golden Bear 2016-R, LLC, Membership Interests2023-12-310001278752Shelby 2021 Holdings Corp.2022-12-310001278752Affiliated Investments 1244311 B.C. Ltd., Term Loan2023-12-310001278752mfic:RiskRelatedToInvestmentsInPortfolioCompaniesMember2023-01-012023-12-310001278752Healthcare & Pharmaceuticals Unchained Labs Unchained Labs, LLC First Lien Secured Debt - Revolver SOFR+555, 1.00% Floor Maturity Date 08/09/272023-12-310001278752mfic:ApolloInvestmentManagementLPMember2023-01-012023-12-310001278752Healthcare & Pharmaceuticals Analogic Analogic Corporation First Lien Secured Debt - Revolver L+525, 1.00% Floor Maturity Date 06/22/232022-12-310001278752Business Services AlpineX2023-12-310001278752Aviation and Consumer Transport Merx Aviation Finance, LLC Common Equity - Membership Interests2023-12-310001278752Upstack Holdco Inc., Letters of Credit2022-12-310001278752Construction & Building Yak Access Yak Access LLC First Lien Secured Debt - Revolver SOFR+486, 1.00% Floor Maturity Date 09/10/272023-12-310001278752Controlled Investments, Second Lien - Secured Debt2022-12-310001278752mfic:TwoThousandTwentyEightNotesMember2020-04-012021-03-310001278752Turbo Buyer, Inc.2023-12-310001278752Construction & Building Pave America Pave America Interco, LLC (f/k/a Pavement Partners Interco, LLC) First Lien Secured Debt SOFR+690, 1.00% Floor Maturity Date 02/07/282023-12-310001278752Consumer Services Activ Activ Software Holdings, LLC First Lien Secured Debt L+625, 1.00% Floor Maturity Date 05/04/272022-12-310001278752HSI HALO Acquisition, Inc.2022-12-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. Preferred Equity - Preferred Equity2023-12-310001278752Healthcare & Pharmaceuticals Medical Guardian, LLC First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 10/26/262023-12-310001278752us-gaap:CollateralizedLoanObligationsMember2023-12-310001278752Chemicals, Plastics & Rubber Carbonfree Chemicals SPE I LLC (f/k/a Maxus Capital Carbon SPE I) FC2 LLC Common Equity - Common Stock2023-12-310001278752Business Services Trench Plate2022-12-310001278752mfic:TwoThousandTwentyEightNotesMember2016-03-310001278752mfic:RiskOfCurrentlyUseBorrowedFundsToMakeInvestmentsMember2023-01-012023-12-310001278752ExactCare Parent, Inc. Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals PHS PHS Buyer, Inc. First Lien Secured Debt SOFR+610 Cash plus 1.50% PIK, 1.00% Floor Maturity Date 01/31/272023-12-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc. Sequential Avia Holdings LLC First Lien Secured Debt L+500, 1.00% Floor Maturity Date 11/12/262022-12-310001278752us-gaap:CollateralizedLoanObligationsMember2021-04-012022-03-310001278752mfic:ConsumerGoodsDurableMember2023-12-310001278752Healthcare & Pharmaceuticals KureSmart Kure Pain Holdings, Inc. First Lien Secured Debt - Revolver SOFR+610, 1.00% Floor Maturity Date 08/27/242023-12-310001278752Non-Controlled/Non-Affiliated Investments, Beverage, Food & Tobacco, Common Equity/Interests2022-12-310001278752Prime Rate Loans | Prime Rate2023-12-310001278752Business Services Access Information Access CIG, LLC Second Lien Secured Debt L+775, 0.00% Floor Maturity Date 02/27/262022-12-310001278752Beverage, Food & Tobacco Bolthouse Farms Wm. Bolthouse Farms, Inc. Common Equity - Equity Interests2022-12-310001278752us-gaap:FairValueInputsLevel3Member2022-04-012022-12-310001278752mfic:TwoThousandFortyThreeNotesMember2014-04-012015-03-310001278752High Tech Industries Dairy.com Momentx Corporation First Lien Secured Debt SOFR+635, 1.00% Floor Maturity Date 06/24/272023-12-310001278752Truck-Lite Co., LLC, Undrawn Commitment2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMembermfic:StructuredProductsAndOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2022-12-310001278752Controlled Investments SHD Oil & Gas, LLC, Series C Units2022-04-012022-12-310001278752High Tech Industries Litify Litify LLC First Lien Secured Debt SOFR+760, 1.00% Floor Maturity Date 02/02/292023-12-310001278752Guernsey Holdings SDI LA LLC2023-12-310001278752Consumer Goods - Durable NSi Industries Wildcat BuyerCo, Inc. First Lien Secured Debt SOFR+575, 1.00% Floor Maturity Date 02/26/272023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Spectrum Automotive2022-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods – Durable, Common Equity/Interests2022-12-310001278752Consumer Services Lending Point LendingPoint LLC First Lien Secured Debt SOFR+1050, 1.00% Floor Maturity Date 12/30/252022-12-310001278752High Tech Industries American Megatrends 2022-12-310001278752Healthcare & Pharmaceuticals CNSI CNSI Holdings, LLC First Lien Secured Debt SOFR+650, 0.50% Floor Maturity Date 12/17/282022-12-310001278752Healthcare & Pharmaceuticals US Fertility US Fertility Enterprises, LLC First Lien Secured Debt SOFR+660, 1.00% Floor Maturity Date 12/21/272023-12-310001278752Business Services PSI Services, LLC2023-12-310001278752Healthcare & Pharmaceuticals Maxor National Pharmacy Services, LLC First Lien Secured Debt SOFR+700, 1.00% Floor Maturity Date 03/01/292023-12-310001278752mfic:RiskRelatedToInvestmentOfOurAssetsInQualifyingAssetsMember2023-01-012023-12-310001278752mfic:TwoThousandTwentySixNotesMember2019-03-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI HALO Acquisition, Inc. Common Equity - Common Stock2022-12-310001278752mfic:TwoThousandFortyThreeNotesMember2022-03-310001278752Patriot Foods Buyer, Inc.2023-12-310001278752Energy - Electricity2023-12-310001278752MSEA Tankers LLC | Common Equity - Class A Units2022-01-012022-12-310001278752Non-Controlled/Non-Affiliated Investments, Manufacturing, Capital Equipment2023-12-310001278752Business Services Jones & Frank2022-12-310001278752Insurance 2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods – Non-durable2023-12-310001278752Non-Controlled/Affiliated Investments, Diversified Investment Vehicles, Banking, Finance, Real Estate2023-12-310001278752Healthcare & Pharmaceuticals Ovation Fertility FPG Services, LLC First Lien Secured Debt L+550, 1.00% Floor Maturity Date 06/13/252022-12-310001278752Activ Software Holdings, LLC, Undrawn Commitment2022-12-310001278752High Tech Industries Simeio2022-12-310001278752us-gaap:InvestmentAffiliatedIssuerControlledMember2022-04-012022-12-310001278752High Tech Industries Digital.ai2023-12-310001278752Non-Controlled/Affiliated Investments, Chemicals, Plastics & Rubber, Common Equity/Interests2023-12-31000127875212 Months SOFR Loans | 12 Month SOFR2023-12-310001278752mfic:RiskRelatedToDividendReinvestmentPlanMember2023-01-012023-12-310001278752Project Comfort Buyer, Inc.2023-12-310001278752Westfall Technik, Inc.2022-12-310001278752Business Services PSE Graffiti Buyer, Inc. First Lien Secured Debt SOFR+560, 1.00% Floor Maturity Date 08/10/272023-12-310001278752Controlled Investments MSEA Tankers LLC, Class A Units2023-01-012023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMember2022-12-310001278752Construction & Building Pave America Pave America Interco, LLC (f/k/a Pavement Partners Interco, LLC) First Lien Secured Debt SOFR+700, 1.00% Floor Maturity Date 02/07/282023-12-3100012787522022-02-030001278752mfic:TwoThousandFortyThreeNotesMember2017-03-310001278752Ultimate Baked Goods Midco LLC, Undrawn Commitment2022-12-310001278752Energy - Oil & Gas Spotted Hawk SHD Oil & Gas, LLC Common Equity - Series A Units2023-12-310001278752Healthcare & Pharmaceuticals Gateway Services2023-12-310001278752Healthcare & Pharmaceuticals Mannkind Corporation2022-12-310001278752mfic:ValuationTechniqueYieldAnalysisMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Membermfic:SecondLienSecuredDebtMemberus-gaap:MeasurementInputDiscountRateMember2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Wholesale, First Lien - Secured Debt2022-12-310001278752Controlled Investments, High Tech Industries2022-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods – Durable2022-12-310001278752Hotel, Gaming, Leisure, Restaurants Guernsey Guernsey Holdings SDI LA LLC First Lien Secured Debt L+595, 1.00% Floor Maturity Date 11/18/262022-12-310001278752Consumer Services Activ2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2018-12-120001278752Healthcare & Pharmaceuticals Medical Guardian, LLC First Lien Secured Debt L+650, 1.00% Floor Maturity Date 10/26/262022-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentyFiveMember2015-03-030001278752Telecommunications Securus Technologies Holdings, Inc. Securus Technologies Holdings, Inc. Second Lien Secured Debt L+825, 1.00% Floor Maturity Date 11/01/252022-12-310001278752Eldrickco Limited*2023-12-310001278752High Tech Industries Modern Campus RMCF IV CIV XXXV, L.P. Common Equity - Common Stock2023-12-310001278752mfic:SeniorUnsecuredBethesdaCloOneClassAOneMember2023-01-012023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Non-durable, Second Lien - Secured Debt2022-12-310001278752Erickson Inc, Letters of Credit2022-12-310001278752mfic:EducationMember2022-12-310001278752IMA Group Management Company, LLC, Undrawn Commitment2022-12-310001278752Beverage, Food & Tobacco Turkey Hill THLP CO. LLC First Lien Secured Debt SOFR+600 Cash plus 2.00% PIK, 1.00% Floor Maturity Date 05/31/252023-12-310001278752Insurance High Street Insurance High Street Buyer, Inc. First Lien Secured Debt SOFR+590, 0.75% Floor Maturity Date 04/14/282023-12-310001278752TELA Bio, Inc.2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2016-01-012016-01-010001278752Business Services Ambrosia Buyer Corp. Second Lien Secured Debt 8.00% Maturity Date 08/28/252022-12-3100012787522004-02-022023-12-310001278752Energy - Oil & Gas Spotted Hawk2023-12-310001278752Affiliated Investments GSC Technologies Inc., Term Loan2023-01-012023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Purchasing Power, LLC Purchasing Power Funding I, LLC First Lien Secured Debt – Revolver L+650, 0.00% Floor Maturity Date 02/24/252022-12-310001278752Healthcare & Pharmaceuticals Compass Health2022-12-310001278752Liqui-Box Holdings, Inc, Letters of Credit2022-12-310001278752Automotive Crowne Automotive Vari-Form Group, LLC First Lien Secured Debt 11.00% (7.00% Cash plus 4.00% PIK) Maturity Date 02/02/232023-12-310001278752Chemicals, Plastics & Rubber Carbonfree Chemicals SPE I LLC (f/k/a Maxus Capital Carbon SPE I)2023-12-310001278752TerSera Therapeutics LLC2023-12-310001278752Business Services US Legal Support2022-12-310001278752Consumer Goods - Non-durable 3D Protein Protein For Pets Opco, LLC First Lien Secured Debt - Revolver SOFR+450, 1.00% Floor Maturity Date 05/31/242023-12-310001278752Beverage, Food & Tobacco Berner Foods2022-12-310001278752mfic:RiskOfWaiverOfConditionsWithoutResolicitingStockholderApprovalMember2023-01-012023-12-310001278752Non-Controlled/Affiliated Investments, Chemicals, Plastics & Rubber2022-12-310001278752Merx Aviation Finance, LLC2022-12-310001278752Business Services PSE2022-12-310001278752Business Services Naviga Naviga Inc. (fka Newscycle Solutions, Inc.) First Lien Secured Debt - Revolver SOFR+700, 1.00% Floor Maturity Date 12/29/232022-12-310001278752Pace Health Companies, LLC2023-12-310001278752mfic:SHDOilGasLLCMember2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueMarketComparableTechniqueMembermfic:SecondLienSecuredDebtMembermfic:MeasurementInputComparableMultipleMembersrt:WeightedAverageMember2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods - Non-durable2022-12-310001278752Aviation and Consumer Transport Merx Aviation Finance, LLC First Lien Secured Debt - Revolver 10.00% Maturity Date 10/31/252023-12-310001278752Business Services PSE Graffiti Buyer, Inc. First Lien Secured Debt L+550, 1.00% Floor Maturity Date 08/10/272022-12-310001278752Energy - Electricity Renew Financial LLC (f/k/a Renewable Funding, LLC)2022-12-310001278752Automotive Crowne Automotive Vari-Form Group, LLC First Lien Secured Debt 11.00% (7.00% Cash plus 4.00% PIK) Maturity Date 02/02/232022-12-310001278752Consumer Goods - Durable KLO Holdings, LLC 1244311 B.C. Ltd. First Lien Secured Debt SOFR+500 PIK, 1.00% Floor Maturity Date 09/30/252023-12-310001278752Healthcare & Pharmaceuticals TissueTech TissueTech, Inc. First Lien Secured Debt - Revolver SOFR+400, 1.00% Floor Maturity Date 04/01/272022-12-310001278752Berner Food & Beverage, LLC, Undrawn Commitment2023-12-310001278752mfic:RiskOfCertainChangeOfControlProvisionsAndOtherRestrictionsInContractsMember2023-01-012023-12-310001278752mfic:SeniorSecuredFacilityMember2019-03-310001278752mfic:SECRule10b51RepurchasePlanMember2016-07-010001278752mfic:EnergyOilAndGasMember2023-12-310001278752Total Commitments2023-12-310001278752mfic:AviationAndConsumerTransportMember2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMember2023-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods – Durable, First Lien - Secured Debt2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Healthcare & Pharmaceuticals, First Lien - Secured Debt2022-12-310001278752mfic:TwoThousandFortyThreeNotesMember2018-04-012019-03-310001278752Business Services PSE Graffiti Parent, LP Common Equity - Common Stock2022-12-310001278752Consumer Goods - Durable Sorenson Holdings, LLC Sorenson Holdings, LLC Common Equity - Membership Interests2022-12-310001278752Compu-Link Corporation (dba Celink), Undrawn Commitment2023-12-310001278752Retail IPS 2022-12-310001278752mfic:SECRule10b51RepurchasePlanMember2016-04-010001278752Affiliated Investments Pelican Energy, LLC, Common Stock2022-03-310001278752Controlled Investments ChyronHego US Holding Corporation, Term Loan2023-01-012023-12-310001278752Consumer Services Activ Activ Software Holdings, LLC First Lien Secured Debt SOFR+650, 1.00% Floor Maturity Date 05/04/272023-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnIncomeMember2019-01-012022-12-310001278752Business Services Trench Plate Trench Plate Rental Co. First Lien Secured Debt SOFR+560, 1.00% Floor Maturity Date 12/03/262023-12-310001278752us-gaap:PreferredStockMembermfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:MeasurementInputComparableMultipleMember2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Telecommunications, Second Lien - Secured Debt2022-12-310001278752High Tech Industries Sirsi Corporation2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Business Services, Preferred Equity2022-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:ValuationTechniqueMarketComparableTechniqueMembermfic:SecondLienSecuredDebtMembersrt:MinimumMembermfic:MeasurementInputComparableMultipleMember2023-12-310001278752mfic:TwoThousandTwentySixNotesMember2016-03-310001278752mfic:ApolloInvestmentManagementLPMembermfic:PerformanceBasedIncentiveFeeMember2022-04-012022-12-310001278752Non-Controlled/Non-Affiliated Investments, Aviation and Consumer Transport, First Lien - Secured Debt2022-12-310001278752EmpiRx Health LLC, Letters of Credit2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-09-162019-09-160001278752Digital.ai Software Holdings, Inc.2022-12-310001278752SHD Oil & Gas, LLC | Common Equity - Series C Units2023-01-012023-12-3100012787522018-10-300001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Purchasing Power, LLC Purchasing Power Funding I, LLC First Lien Secured Debt – Revolver L+710, 0.00% Floor Maturity Date 02/24/252023-12-310001278752Consumer Goods - Durable KLO Holdings, LLC 1244311 B.C. Ltd. First Lien Secured Debt L+500 Cash plus 6.00%, PIK 1.00% Floor Maturity Date 09/30/252022-12-310001278752srt:MaximumMembermfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMembermfic:MeasurementInputComparableMultipleMember2022-12-310001278752Business Services Jones & Frank JF Acquisition, LLC First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 07/31/262022-12-310001278752Energy - Electricity Renew Financial LLC (f/k/a Renewable Funding, LLC)2023-12-310001278752Total Commitments, Letters of Credit2023-12-310001278752Automotive K&N Parent, Inc. K&N Holdco, LLC Common Equity - Common Stock2023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2019-09-160001278752mfic:AffiliatedInvestmentsMembersrt:MinimumMember2022-12-310001278752G Treasury SS LLC Undrawn Commitment2023-12-310001278752Roscoe Medical, Inc, Undrawn Commitment2023-12-310001278752Manufacturing, Capital Equipment International Wire Group IW Buyer LLC First Lien Secured Debt SOFR+685, 1.00% Floor Maturity Date 06/28/292023-12-310001278752mfic:FirstLienSecuredDebtMembermfic:ValuationTechniqueYieldAnalysisMemberus-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMember2022-12-310001278752mfic:RiaskRelatedToMarylandGeneralCorporationLawMember2023-01-012023-12-310001278752us-gaap:FairValueInputsLevel3Member2023-12-310001278752mfic:RiskRelatedToProlongedContinuationOfDepressedOilAndNaturalGasPricesMember2023-01-012023-12-310001278752Westfall Technik, Inc.2023-12-310001278752Healthcare & Pharmaceuticals Partner Therapeutics, Inc Partner Therapeutics, Inc Preferred Equity - Preferred Equity2022-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2022-12-310001278752us-gaap:FairValueInputsLevel3Member2023-01-012023-12-3100012787522021-04-012021-06-300001278752us-gaap:PreferredStockMembermfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Membermfic:MeasurementInputComparableMultipleMembersrt:MinimumMember2023-12-310001278752us-gaap:BaseRateMembersrt:MaximumMembermfic:SeniorSecuredFacilityMember2023-01-012023-12-310001278752Healthcare & Pharmaceuticals Midwest Vision2023-12-310001278752us-gaap:InvestmentAffiliatedIssuerControlledMember2023-01-012023-12-310001278752Beverage, Food & Tobacco Rise Baking Ultimate Baked Goods Midco LLC First Lien Secured Debt L+650, 1.00% Floor Maturity Date 08/13/272022-12-310001278752Second Lien - Secured Debt2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Construction & Building, First Lien - Secured Debt2023-12-310001278752Mobile Communications America, Inc.2023-12-310001278752mfic:TwoThousandTwentyFiveNotesMember2022-03-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMember2022-03-310001278752High Tech Industries Simeio Simeio Group Holdings, Inc. First Lien Secured Debt L+550, 1.00% Floor Maturity Date 02/02/262022-12-310001278752Analogic Corporation2022-12-3100012787522022-01-012022-03-310001278752Non-Controlled/Non-Affiliated Investments, Retail, First Lien - Secured Debt2022-12-310001278752Healthcare & Pharmaceuticals ViewRay ViewRay Inc. First Lien Secured Debt 3.50% Maturity Date 11/01/272023-12-310001278752Non-Controlled/Non-Affiliated Investments, High Tech Industries, Common Equity/Interests2022-12-310001278752High Tech Industries Schlesinger Group2023-12-310001278752Trench Plate Rental Co., Undrawn Commitment2023-12-310001278752us-gaap:ValuationTechniqueDiscountedCashFlowMembermfic:FirstLienSecuredDebtMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMember2022-12-310001278752Paragon 28, Inc., Undrawn Commitment2022-12-310001278752Consumer Goods - Non-durable Dan Dee Project Comfort Buyer, Inc. First Lien Secured Debt SOFR+710, 1.00% Floor Maturity Date 02/01/252023-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate Celink Compu-Link Corporation (dba Celink) First Lien Secured Debt - Revolver SOFR+610, 1.00% Floor Maturity Date 11/30/282023-12-310001278752mfic:HotelGamingLeisureRestaurantsMember2022-12-310001278752mfic:SeniorSecuredFacilityMembersrt:MinimumMember2023-01-012023-12-310001278752Wholesale Thomas Scientific BSP-TS, LP Common Equity - Common Stock2022-12-310001278752mfic:FeeOffsetAgreementMembermfic:MerxAndApolloMember2023-02-212023-02-210001278752Controlled Investments MSEA Tankers LLC, Class A Units2023-12-310001278752Heniff Holdco, LLC, Letters of Credit2022-12-310001278752mfic:RestrictedSecuritiesMember2023-12-310001278752Consumer Goods – Non-durable2023-12-310001278752Purchasing Power Funding I, LLC2023-12-310001278752Non-Controlled/Non-Affiliated Investments, High Tech Industries2023-12-310001278752High Tech Industries Springbrook Springbrook Holding Company, LLC First Lien Secured Debt SOFR+561, 1.00% Floor Maturity Date 12/23/262023-12-310001278752mfic:SeniorSecuredNotesMember2018-04-012019-03-310001278752Controlled Investments SHD Oil & Gas, LLC, Tranche C Note2022-04-012022-12-310001278752mfic:TelecommunicationsMember2022-12-310001278752Affiliated Investments Carbonfree Chemicals SA LLC, Class B Units2022-04-012022-12-310001278752Wildcat BuyerCo, Inc., Undrawn Commitment2022-12-310001278752mfic:EnergyOilAndGasMember2022-12-310001278752mfic:MerxAviationMembermfic:FirstLienSecuredRevolverMemberus-gaap:CommonStockMember2022-09-012022-09-010001278752Healthcare & Pharmaceuticals Celerion Celerion Buyer, Inc. First Lien Secured Debt - Revolver SOFR+650, 0.75% Floor Maturity Date 11/03/282023-12-310001278752Healthcare & Pharmaceuticals WellDyneRx, LLC2022-12-310001278752Consumer Goods - Non-durable Village Pet Care Village Pet Care, LLC First Lien Secured Debt SOFR+650, 1.00%Floor Maturity Date 09/22/292023-12-310001278752Telecommunications Securus Technologies Holdings, Inc. Securus Technologies Holdings, Inc. Second Lien Secured Debt SOFR+865, 1.00% Floor Maturity Date 11/01/252023-12-310001278752Mobile Communications America, Inc., Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals KureSmart2022-12-310001278752Business Services Naviga2023-12-310001278752Hotel, Gaming, Leisure, Restaurants2022-12-310001278752Controlled Investments Glacier Oil & Gas Corp. (f/k/a Miller Energy Resources, Inc.), Term Loan2022-04-012022-12-310001278752Controlled Investments, First Lien - Secured Debt2023-12-310001278752mfic:DisruptionsToTheGlobalSupplyChainMember2023-01-012023-12-310001278752Healthcare & Pharmaceuticals TissueTech2022-12-310001278752Consumer Goods - Non-durable Dan Dee2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Construction & Building, Common Equity/Interests2022-12-310001278752JF Acquisition, LLC, Undrawn Commitment2023-12-310001278752Alpinex Opco, LLC2022-12-310001278752IW Buyer LLC2023-12-310001278752us-gaap:CollateralizedLoanObligationsMember2015-03-310001278752Non-Controlled/Non-Affiliated Investments, Chemicals, Plastics & Rubber, First Lien - Secured Debt2023-12-310001278752Consumer Goods - Non-durable Sequential Brands Group, Inc.2023-12-310001278752Business Services Trench Plate Trench Plate Rental Co. First Lien Secured Debt SOFR+550, 1.00% Floor Maturity Date 12/03/262022-12-310001278752mfic:MerxAdministrationAgreementMemberus-gaap:InterestExpenseMember2023-01-012023-12-310001278752Controlled Investments ChyronHego US Holding Corporation, Term Loan2023-12-310001278752us-gaap:FairValueInputsLevel3Membermfic:CommonEquityInterestsMember2022-03-310001278752Midwest Vision Partners Management, LLC2023-12-310001278752Beverage, Food & Tobacco Nutpods Green Grass Foods, Inc. First Lien Secured Debt SOFR+625, 1.00% Floor Maturity Date 12/26/292023-12-310001278752mfic:TwoThousandTwentyEightNotesMember2014-04-012015-03-310001278752Simeio Group Holdings, Inc.2023-12-310001278752Business Services IRP Precision Refrigeration & Air Conditioning LLC First Lien Secured Debt SOFR+690, 1.00% Floor Maturity Date 03/08/282023-12-310001278752mfic:AdvertisingPrintingAndPublishingMember2023-12-3100012787522019-02-062019-02-060001278752Controlled Investments MSEA Tankers LLC, Class A Units2022-04-012022-12-310001278752us-gaap:FairValueInputsLevel3Memberus-gaap:ValuationTechniqueOptionPricingModelMembersrt:MinimumMembermfic:MeasurementInputExpectedVolatilityMemberus-gaap:WarrantMember2022-12-310001278752Construction & Building Allstar Holding2023-12-310001278752Healthcare & Pharmaceuticals WellDyneRx, LLC WelldyneRX, LLC First Lien Secured Debt SOFR+685, 0.75% Floor Maturity Date 03/09/272023-12-310001278752mfic:ApolloInvestmentManagementLPMember2022-04-012022-12-310001278752THLP CO. LLC, Undrawn Commitment2022-12-310001278752us-gaap:StandbyLettersOfCreditMember2022-12-310001278752Thomas Scientific, LLC2023-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentyEightMember2023-12-130001278752Beverage, Food & Tobacco Hive Hive Intermediate, LLC First Lien Secured Debt - Revolver SOFR+400 Cash plus 2.00% PIK, 1.00% Floor Maturity Date 09/22/272022-12-310001278752mfic:SeniorUnsecuredNotesTwoThousandTwentySixMember2022-04-012022-12-310001278752mfic:ChyronHegoCorporationMember2022-01-012022-12-310001278752High Tech Industries Schlesinger Group Schlesinger Global, LLC First Lien Secured Debt SOFR+785, 1.00% Floor Maturity Date 07/12/252022-12-310001278752us-gaap:StandbyLettersOfCreditMember2023-12-310001278752mfic:ValuationTechniqueMarketComparableTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:PreferredStockMembersrt:MinimumMembermfic:MeasurementInputComparableMultipleMember2022-12-310001278752Non-Controlled/Non-Affiliated Investments, Consumer Goods – Non-durable2022-12-310001278752mfic:AutoPoolMember2023-12-310001278752Consumer Goods - Durable KLO Holdings, LLC 1244311 B.C. Ltd. First Lien Secured Debt L+500, 1.00% Floor Maturity Date 09/30/252022-12-310001278752Controlled Investments, High Tech Industries, Preferred Equity2022-12-310001278752Consumer Services The Club Company2022-12-310001278752TELA Bio, Inc., Undrawn Commitment2022-12-310001278752Beverage, Food & Tobacco Berner Foods Berner Food & Beverage, LLC First Lien Secured Debt - Revolver SOFR+565, 1.00% Floor Maturity Date 07/30/262023-12-310001278752Shelby 2021 Holdings Corp.2023-12-310001278752Non-Controlled/Non-Affiliated Investments, Automotive, First Lien - Secured Debt2022-12-310001278752mfic:TwoThousandFortyTwoNotesMember2017-03-310001278752Controlled Investments Glacier Oil & Gas Corp. (f/k/a Miller Energy Resources, Inc.), Term Loan2022-03-310001278752Springbrook Holding Company, LLC2023-12-310001278752mfic:TwoThousandTwentySixNotesMember2021-03-310001278752Protein For Pets Opco, LLC, Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals Treace Treace Medical Concepts, Inc. First Lien Secured Debt - Revolver SOFR+410, 1.00% Floor Maturity Date 04/01/272023-12-310001278752mfic:SECRule10b51RepurchasePlanMember2015-09-152015-09-150001278752Manufacturing, Capital Equipment Kauffman Kauffman Intermediate, LLC First Lien Secured Debt – Revolver L+575, 1.00% Floor Maturity Date 05/08/252022-12-310001278752Diversified Investment Vehicles, Banking, Finance, Real Estate2023-12-310001278752Healthcare & Pharmaceuticals Partner Therapeutics, Inc Partner Therapeutics, Inc Warrants - Warrants2023-12-310001278752Advertising Printing & Publishing Hero Digital HRO Holdings I LP Common Equity - Common Stock2022-12-310001278752Cerus Corporation, Undrawn Commitment2023-12-310001278752Healthcare & Pharmaceuticals Compass Health Roscoe Medical, Inc First Lien Secured Debt SOFR+625, 1.00% Floor Maturity Date 09/30/242022-12-310001278752Kure Pain Holdings, Inc., Undrawn Commitment2022-12-310001278752mfic:RiskRelatedToVolatilityInMarketPriceMember2023-01-012023-12-310001278752Non-Controlled/Affiliated Investments, Consumer Goods – Durable, First Lien - Secured Debt2022-12-310001278752Business Services PSE Graffiti Buyer, Inc. First Lien Secured Debt - Revolver L+550, 1.00% Floor Maturity Date 08/10/272022-12-310001278752Naviga Inc. (fka Newscycle Solutions, Inc.), Undrawn Commitment2023-12-310001278752us-gaap:CollateralizedLoanObligationsMember2021-03-310001278752mfic:RiskRelatedToHoldersOfPreferredStockMember2023-01-012023-12-310001278752mfic:RiskOfCorporateLevelIncomeTaxIfUnableToMaintainRICStatusMember2023-01-012023-12-310001278752mfic:ApolloInvestmentManagementLPMembermfic:IncentiveFeeBasedOnCumulativeNetRealizedGainsMember2023-12-310001278752Healthcare & Pharmaceuticals Health & Safety Institute HSI HALO Acquisition, Inc. First Lien Secured Debt - Revolver SOFR+585, 1.00% Floor Maturity Date 09/02/252023-12-310001278752KL Charlie Acquisition Company, Undrawn Commitment2023-12-310001278752Consumer Goods - Non-durable LashCo Lash OpCo, LLC First Lien Secured Debt - Revolver SOFR+710, 1.00% Floor Maturity Date 09/18/252023-12-310001278752us-gaap:InvestmentAffiliatedIssuerControlledMember2023-12-310001278752mfic:TransportationCargoDistributionsMember2022-12-310001278752Beverage, Food & Tobacco Orgain, Inc. Butterfly Fighter Co-Invest, L.P. Common Equity - Membership Interests2023-12-310001278752mfic:TwoThousan