{"url_path":"/sec/cik-0002079966/10-k/2026/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"10-K","doc_date":"2026-06-26","source_url":"https://www.sec.gov/Archives/edgar/data/2079966/0001193125-26-283312-index.html","accession_number":"0001193125-26-283312","cik":"0002079966","ticker":null,"issuer_name":"Macquarie Infrastructure Fund, L.P.","edgar_url":"https://www.sec.gov/Archives/edgar/data/2079966/0001193125-26-283312-index.html","primary_entity_key":"0002079966","primary_entity_name":"Macquarie Infrastructure Fund, L.P."},"word_count":1207,"has_tables":true,"body_markdown":"10-K\n\n0002079966falseFYUnlimitedUnlimitedhttp://fasb.org/us-gaap/2025#UnrealizedGainLossOnInvestmentshttp://fasb.org/us-gaap/2025#UnrealizedGainLossOnInvestmentshttp://fasb.org/us-gaap/2025#UnrealizedGainLossOnInvestmentshttp://fasb.org/us-gaap/2025#UnrealizedGainLossOnInvestments0002079966ck0002079966:InvestmentManagerMemberck0002079966:MacquarieInfrastructureFundLPMember2025-06-202026-03-310002079966currency:GBPck0002079966:MIFCaymanLPMember2026-03-310002079966ck0002079966:ClassEUnitsMember2026-06-170002079966ck0002079966:GovernmentBondsMemberck0002079966:MacquarieInfrastructureFundLPMember2026-03-310002079966us-gaap:ValuationTechniqueDiscountedCashFlowMemberck0002079966:EquityInvestmentsMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMember2026-03-310002079966ck0002079966:ClassIUnitsMemberck0002079966:MacquarieInfrastructureFundLPMember2025-06-190002079966srt:AmericasMemberck0002079966:MIFCaymanLPMemberck0002079966:TotalEquitySecuritiesMember2026-03-310002079966ck0002079966:MIFCaymanLPMemberus-gaap:InvestmentAffiliatedIssuerMember2026-03-310002079966ck0002079966:MIFCaymanLPMemberck0002079966:VariousMemberck0002079966:TotalInvestmentsInAffiliatedFundAndInvestmentsMember2026-03-310002079966us-gaap:FairValueInputsLevel1Memberck0002079966:MacquarieInfrastructureFundLPMember2026-03-310002079966ck0002079966:OtherEquityInvestmentsMemberck0002079966:MIFCaymanLPMemberck0002079966:VariousMember2026-03-310002079966ck0002079966:MIFCaymanLPMemberName of Investment Investments and investments in affiliated fund Other equity investments Various Other investments Type of Investment Equity investment Geography Various Industry Various2026-03-310002079966ck0002079966:OwnershipMemberck0002079966:MacquarieInfrastructureFundMember2026-03-310002079966ck0002079966:TotalEquitySecuritiesMemberus-gaap:EMEAMember2026-03-310002079966Derivative instruments Foreign currency forward contracts Westpac Banking Corp. 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Twelve Type of Investment Sell GBP/USD2026-03-310002079966us-gaap:ForeignExchangeContractMemberck0002079966:MacquarieInfrastructureFundLPMember2026-03-310002079966us-gaap:ValuationTechniqueDiscountedCashFlowMemberck0002079966:DebtInvestmentsMemberck0002079966:BXINFRAAggregatorCYMLPMembersrt:MinimumMemberck0002079966:MeasurementInputYieldMember2026-03-310002079966ck0002079966:MIFCaymanLPMemberus-gaap:LimitedPartnerMember2026-03-310002079966currency:EURck0002079966:MIFCaymanLPMember2026-03-310002079966ck0002079966:MIFCaymanLPMemberName of Investment Investments and investments in affiliated fund Equity investments Utilities and energy Southern Water Holding entity MSCIF Sandstone Ventures S.à r.l. Type of Investment Equity investment Geography EMEA Industry Utilities and energy2026-03-310002079966us-gaap:TransportationSectorMemberck0002079966:MIFCaymanLPMemberus-gaap:EquitySecuritiesMember2026-03-310002079966us-gaap:FairValueInputsLevel2Memberck0002079966:BXINFRAAggregatorCYMLPMember2026-03-31iso4217:AUDiso4217:EURxbrli:purexbrli:sharesiso4217:USDxbrli:sharesiso4217:GBPiso4217:USD\n\n[Table of Contents](#toc_page)\n\n \n\nU.S. SECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\nFORM 10-K\n\n \n\n☒\n\nANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED MARCH 31, 2026\n\nOR\n\n☐\n\nTRANSITION REPORT PURSUANT TO SECTION\n\n13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM      TO     \n\n \n\nCommission File Number: 000-56772\n\nMacquarie Infrastructure Fund, L.P.\n\n \n\n(Exact name of registrant as specified in charter)\n\n \n\nDelaware\n\n \n\n39-2908652\n\n(State or other jurisdiction of\nincorporation or registration)\n\n \n\n(I.R.S. Employer Identification No.)\n\n \n\n660 Fifth Avenue\n\nNew York, NY\n\n(Address of principal executive offices)\n\n \n\n10103\n\n(Zip Code)\n\n \n\n212-231-1000\n\n(Registrant’s telephone number, including area code)\n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\nTitle of each class\n\nTrading\n\nSymbol\n\nName of each exchange\n\non which registered\n\nNone\n\nNone\n\nNone\n\n \n\nSecurities registered pursuant to Section 12(g) of the Act:\n\nClass S Limited Partnership Units\n\nClass D Limited Partnership Units\n\nClass I Limited Partnership Units\n\n(Title of class)\n\nIndicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ☐ Yes ☒ No\n\nIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. ☐ Yes ☒ No\n\nIndicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No\n\nIndicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No\n\nIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Securities Exchange Act of 1934. (Check one):\n\n \n\nLarge accelerated filer\n\n \n\n☐\n\n \n\nAccelerated filer\n\n \n\n☐\n\n \n\n \n\n \n\n \n\nNon-accelerated filer\n\n \n\n☒\n\n \n\nSmaller reporting company\n\n \n\n☐\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\nEmerging growth company\n\n \n\n☒\n\n \n\nIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐\n\nIndicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☐\n\nIf securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐\n\nIndicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to 240.10D‐1(b). ☐\n\nIndicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No\n\nThere is currently no established public market for the registrant’s Units.\n\nAs of June 25, 2026, the registrant had the following limited partnership units outstanding: 1,917 Class I Units, no Class D Units, 3,554,757 Class E Units and no Class S Units.\n\nDOCUMENTS INCORPORATED BY REFERENCE\nNone\n\n \n\n \n\n[Table of Contents](#toc_page)\n\n \n\nMacquarie Infrastructure Fund, L.P.\n\nNotes to the Financial Statements\n\n \n\nTable of Contents\n\n \n\n \n\n \n\nPage\n\n[Part I.](#part_i)"}