hrzn20230331b_10q.htm
0001487428
Horizon Technology Finance Corp
false
--12-31
Q1
2023
724,162
721,248
0
0
724,162
721,248
0.001
0.001
1,000,000
1,000,000
0
0
0
0
0.001
0.001
100,000,000
100,000,000
28,544,822
27,920,838
28,377,357
27,753,373
221.1
212.8
95.7
25.8
83.2
8.1
8.0
2.1
0.2
5.1
0.6
0.4
0.9
0.3
0.3
222.4
226.1
215.5
99.7
26.3
81.4
8.1
9.4
3.1
0.6
5.1
0.6
0.4
0.8
226.1
0
0
0
2019 2020 2021
0
0
1.1
0.4
176.8
5.57
23.2
100.0
23
May 18, 2023
June 14, 2023
April 18, 2023
May 16, 2023
March 17, 2023
April 14, 2023
February 17, 2023
March 15, 2023
January 18, 2023
February 15, 2023
December 19, 2022
January 13, 2023
November 17, 2022
December 15, 2022
November 17, 2022
December 15, 2022
October 18, 2022
November 15, 2022
September 19, 2022
October 14, 2022
August 18, 2022
September 15, 2022
July 19, 2022
August 16, 2022
June 17, 2022
July 15, 2022
May 18, 2022
June 15, 2022
April 19, 2022
May 16, 2022
March 18, 2022
April 14, 2022
Weighted average is calculated by multiplying (a) the unobservable input for each investment in the investment type by (b) (1) the fair value of the related investment in the investment type divided by (2) the total fair value of the investment type.
Annualized.
Distributions are determined based on taxable income calculated in accordance with income tax regulations, which may differ from amounts determined under GAAP due to (i) changes in unrealized appreciation and depreciation, (ii) temporary and permanent differences in income and expense recognition, and (iii) the amount of spillover income carried over from a given tax year for distribution in the following tax year. The final determination of taxable income for each tax year, as well as the tax attributes for distributions in such tax year, will be made after the close of the tax year.
Includes the impact of the different share amounts as a result of calculating per share data based on the weighted average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date. The issuance of common stock on a per share basis reflects the incremental net asset value changes as a result of the issuance of common stock in the Company’s continuous public offering and pursuant to the Company’s distribution reinvestment plan. The issuance of common stock at an offering price, net of sales commissions and dealer manager fees, that is greater than the net asset value per share results in an increase in net asset value per share.
The total return equals the change in the ending market value over the beginning of period price per share plus distributions paid per share during the period, divided by the beginning price.
Calculated by dividing the lesser of purchases or the sum of (1) principal prepayments and (2) maturities by the monthly average debt investment balance.
00014874282023-01-012023-03-31
xbrli:shares
00014874282023-05-02
0001487428us-gaap:CommonStockMember2023-01-012023-03-31
0001487428hrzn:The4875NotesDue2026Member2023-01-012023-03-31
0001487428hrzn:The625NotesDue2027Member2023-01-012023-03-31
thunderdome:item
iso4217:USD
0001487428us-gaap:InvestmentUnaffiliatedIssuerMember2023-03-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMember2022-12-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2022-12-31
00014874282023-03-31
00014874282022-12-31
iso4217:USDxbrli:shares
0001487428us-gaap:InvestmentUnaffiliatedIssuerMember2023-01-012023-03-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMember2022-01-012022-03-31
00014874282022-01-012022-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2023-01-012023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMember2022-01-012022-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMember2023-01-012023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMember2022-01-012022-03-31
0001487428hrzn:CommonStockOutstandingMember2021-12-31
0001487428us-gaap:CommonStockMember2021-12-31
0001487428us-gaap:AdditionalPaidInCapitalMember2021-12-31
0001487428us-gaap:RetainedEarningsMember2021-12-31
00014874282021-12-31
0001487428hrzn:CommonStockOutstandingMember2022-01-012022-03-31
0001487428us-gaap:CommonStockMember2022-01-012022-03-31
0001487428us-gaap:AdditionalPaidInCapitalMember2022-01-012022-03-31
0001487428us-gaap:RetainedEarningsMember2022-01-012022-03-31
0001487428hrzn:CommonStockOutstandingMember2022-03-31
0001487428us-gaap:CommonStockMember2022-03-31
0001487428us-gaap:AdditionalPaidInCapitalMember2022-03-31
0001487428us-gaap:RetainedEarningsMember2022-03-31
00014874282022-03-31
0001487428hrzn:CommonStockOutstandingMember2022-12-31
0001487428us-gaap:CommonStockMember2022-12-31
0001487428us-gaap:AdditionalPaidInCapitalMember2022-12-31
0001487428us-gaap:RetainedEarningsMember2022-12-31
0001487428hrzn:CommonStockOutstandingMember2023-01-012023-03-31
0001487428us-gaap:CommonStockMember2023-01-012023-03-31
0001487428us-gaap:AdditionalPaidInCapitalMember2023-01-012023-03-31
0001487428us-gaap:RetainedEarningsMember2023-01-012023-03-31
0001487428hrzn:CommonStockOutstandingMember2023-03-31
0001487428us-gaap:CommonStockMember2023-03-31
0001487428us-gaap:AdditionalPaidInCapitalMember2023-03-31
0001487428us-gaap:RetainedEarningsMember2023-03-31
0001487428hrzn:AssetbackedNotes2019Member2023-01-012023-03-31
0001487428hrzn:AssetbackedNotes2019Member2022-01-012022-03-31
xbrli:pure
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2023-03-31
0001487428hrzn:LifeScienceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexSevenMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexTwoMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexThreeMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexFourMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexFiveMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexSixMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:TermLoanLiborIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:TermLoanLiborIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorinthMedtechIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorinthMedtechIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorinthMedtechIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SpineologyIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SpineologyIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:SustainabilitySegmentMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428us-gaap:TechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CampNycIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexSevenMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexEightMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexNineMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InteriorDefineIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InteriorDefineIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyricalFoodsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexSixMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexSevenMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexEightMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:OptoroIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexFiveMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:Engage3LLCMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:Engage3LLCMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberus-gaap:ConvertibleDebtSecuritiesMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NoodlePartnersIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NoodlePartnersIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NoodlePartnersIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ReputationInstituteIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428us-gaap:HealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2023-03-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexOneMember2023-03-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexTwoMember2023-03-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexThreeMember2023-03-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexFourMember2023-03-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:LifeScienceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorviumIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImunonIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MustangBioIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RocketPharmaceuticalsCorporationMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:VtvTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:XerisPharmaceuticalsIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AccuveinIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerinMedicalIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CanaryMedicalIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CvrxIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MeditrinaIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:VeroBiotechLlcMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:SustainabilitySegmentMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiquiglideIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428us-gaap:TechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:IntelepeerHoldingsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PebblepostIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AterianIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CaastleIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CampNycIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:OptoroIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:QuipNycIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UpdaterIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:DataStorageSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CpgBeyondIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:DataStorageSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SilkIncMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GlobalWorldwideLlcMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RocketLawyerIncorporatedMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SkillshareIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:PowerManagementSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HalioIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SemiconductorSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvalancheTechnologyIncMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ELaCarteIncMemberhrzn:CommonStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LotameSolutionsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NoodlePartnersIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ReputationInstituteIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RevinateHoldingsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RivDataCorpMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SignixIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TopiaMobilityIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:XadIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428us-gaap:HealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2023-03-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KateFarmsIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MedsphereSystemsCorporationMemberhrzn:PreferredStockWarrantsMember2023-03-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:OtherLongTermInvestmentsMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LumitheraIncMemberhrzn:RoyaltyAgreementMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ZetrozIncMemberhrzn:RoyaltyAgreementMember2023-03-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GetaroundIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SnagajobcomIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LumitheraIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TigoEnergyIncMemberus-gaap:PreferredStockMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrandedOnlineIncMemberus-gaap:CommonStockMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberhrzn:PreferredAndCommonStockMember2023-03-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LotameSolutionsIncMemberus-gaap:PreferredStockMember2023-03-31
0001487428us-gaap:TechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberus-gaap:PreferredStockMember2023-03-31
0001487428hrzn:LifeScienceMemberus-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberhrzn:CadrenalTherapeuticsIncMemberus-gaap:CommonStockMember2023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428srt:AffiliatedEntityMemberhrzn:AssetbackedNotes2019Member2019-08-13
0001487428hrzn:AssetbackedNotes2019Member2019-08-13
0001487428srt:AffiliatedEntityMemberhrzn:AssetbackedNotes2022Member2022-11-09
0001487428hrzn:AssetbackedNotes2022Member2022-11-09
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2022-12-31
0001487428hrzn:LifeScienceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:TermLoanPrimeIndexSevenMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:TermLoanLiborIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:FstarTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:FstarTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexTwoMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexThreeMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexFourMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexFiveMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:TermLoanLiborIndexSixMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CanaryMedicalIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CanaryMedicalIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CanaryMedicalIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:TermLoanLiborIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:TermLoanLiborIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorinthMedtechIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorinthMedtechIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:TermLoanLiborIndexThreeMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmbodyIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SpineologyIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SpineologyIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SustainabilitySegmentMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428us-gaap:TechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberus-gaap:ConvertibleDebtSecuritiesMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CampNycIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexSevenMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:TermLoanPrimeIndexEightMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InteriorDefineIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InteriorDefineIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyricalFoodsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexSixMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexSevenMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:TermLoanPrimeIndexEightMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:OptoroIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:TermLoanPrimeIndexFiveMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:Engage3LLCMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:Engage3LLCMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ReputationInstituteIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:TermLoanPrimeIndexFourMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428us-gaap:HealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:DebtSecuritiesMember2022-12-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexOneMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexTwoMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:TermLoanPrimeIndexThreeMember2022-12-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:LifeScienceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvaloTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CorviumIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EveloBiosciencesIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:FstarTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GreenlightBiosciencesIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImunonIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ImvIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KSQTherapeuticsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MustangBioIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NativeMicrobialsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PdsBiotechnologyCorporationMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ProviviIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RocketPharmaceuticalsCorporationMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:StealthBioTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:VtvTherapeuticsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:XerisPharmaceuticalsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AccuveinIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerinMedicalIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerobiotixLlcMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CanaryMedicalIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CeribellIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CognoaIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ConventusOrthopaedicsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CsaMedicalIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CvrxIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InfobionicIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MagnoliaMedicalTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MeditrinaIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RobinHealthcareIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ScientiaVascularIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SonexHealthIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:VeroBiotechLlcMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SwiftHealthSystemsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SustainabilitySegmentMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AerofarmsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiquiglideIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NexiiBuildingSolutionsIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SoliOrganicIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TemperpackTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428us-gaap:TechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AxiomSpaceIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:IntelepeerHoldingsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:CommunicationsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PebblepostIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AlulaHoldingsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AterianIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BetterPlaceForestsCoMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CaastleIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CampNycIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ClaraFoodsCoMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DivergentTechnologiesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HavenlyIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:InteriorDefineIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MyforestFoodsCoMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:NextcarHoldingCompanyIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:OptoroIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:PrimaryKidsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:QuipNycIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UnagiIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:UpdaterIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:DataStorageSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CpgBeyondIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:DataStorageSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SilkIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GlobalWorldwideLlcMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RocketLawyerIncorporatedMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:InternetAndMediaSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SkillshareIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:NetworkingSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LiqidIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:PowerManagementSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HalioIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SemiconductorSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:AvalancheTechnologyIncMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BritecoreHoldingsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DropOffIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ELaCarteIncMemberhrzn:CommonStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GroundspeedAnalyticsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KodiakRoboticsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LemongrassHoldingsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LotameSolutionsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LyticsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ReputationInstituteIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RevinateHoldingsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:RivDataCorpMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SignixIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SkywordIncMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SlingshotAerospaceIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SupplyNetworkVisiblityHoldingsLlcMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TopiaMobilityIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:XadIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428us-gaap:HealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:WarrantMember2022-12-31
0001487428hrzn:DiagnosticsSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:HoundLabsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:KateFarmsIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:OtherHealthcareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SecureTransfusionServicesIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrightinsightIncMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:MedsphereSystemsCorporationMemberhrzn:PreferredStockWarrantsMember2022-12-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:OtherLongTermInvestmentsMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LumitheraIncMemberhrzn:RoyaltyAgreementMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:ZetrozIncMemberhrzn:RoyaltyAgreementMember2022-12-31
0001487428us-gaap:InvestmentUnaffiliatedIssuerMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:CastleCreekBiosciencesIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:BiotechnologySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:EmalexBiosciencesIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:GetaroundIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:ConsumerrelatedTechnologiesMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:SnagajobcomIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:LumitheraIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:TigoEnergyIncMemberus-gaap:PreferredStockMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:BrandedOnlineIncMemberus-gaap:CommonStockMember2022-12-31
0001487428hrzn:SoftwareSectorMemberus-gaap:InvestmentUnaffiliatedIssuerMemberhrzn:DecisyonIncMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428hrzn:ThreeInvestmentsMember2023-03-31
0001487428hrzn:ThreeInvestmentsMember2022-12-31
0001487428hrzn:The2021EquityDistributionAgreementMember2021-08-02
0001487428hrzn:The2021EquityDistributionAgreementMember2023-01-012023-03-31
0001487428hrzn:The2021EquityDistributionAgreementMember2022-01-012022-03-31
0001487428hrzn:PublicOfferingMember2022-03-142022-03-14
0001487428hrzn:PublicOfferingMember2022-03-14
0001487428hrzn:The2021EquityDistributionAgreementMember2023-03-31
00014874282022-04-28
00014874282021-04-242023-03-31
0001487428hrzn:AffiliateOfMonroeCapitalLLCMemberhrzn:HorizonTechnologyFinanceManagementLLCTheAdvisorMembersrt:ScenarioForecastMember2023-05-25
0001487428hrzn:InvestmentManagementAgreementMember2023-01-012023-03-31
0001487428hrzn:InvestmentManagementAgreementMember2023-03-31
0001487428hrzn:InvestmentManagementAgreementMember2022-12-31
0001487428hrzn:InvestmentManagementAgreementMember2022-01-012022-03-31
0001487428hrzn:AdministrationAgreementMember2023-01-012023-03-31
0001487428hrzn:AdministrationAgreementMember2022-01-012022-03-31
0001487428us-gaap:DebtMember2023-03-31
0001487428us-gaap:DebtMember2022-12-31
0001487428us-gaap:WarrantMember2023-03-31
0001487428us-gaap:WarrantMember2022-12-31
0001487428us-gaap:OtherDebtSecuritiesMember2023-03-31
0001487428us-gaap:OtherDebtSecuritiesMember2022-12-31
0001487428us-gaap:EquitySecuritiesMember2023-03-31
0001487428us-gaap:EquitySecuritiesMember2022-12-31
0001487428hrzn:BiotechnologySectorMember2023-03-31
0001487428hrzn:BiotechnologySectorMember2022-12-31
0001487428hrzn:MedicalDeviceSectorMember2023-03-31
0001487428hrzn:MedicalDeviceSectorMember2022-12-31
0001487428hrzn:CommunicationsSectorMember2023-03-31
0001487428hrzn:CommunicationsSectorMember2022-12-31
0001487428hrzn:ConsumerrelatedSectorMember2023-03-31
0001487428hrzn:ConsumerrelatedSectorMember2022-12-31
0001487428hrzn:DataStorageSectorMember2023-03-31
0001487428hrzn:DataStorageSectorMember2022-12-31
0001487428hrzn:InternetAndMediaSectorMember2023-03-31
0001487428hrzn:InternetAndMediaSectorMember2022-12-31
0001487428hrzn:NetworkingSectorMember2023-03-31
0001487428hrzn:NetworkingSectorMember2022-12-31
0001487428hrzn:PowerManagementSectorMember2023-03-31
0001487428hrzn:PowerManagementSectorMember2022-12-31
0001487428hrzn:SemiconductorSectorMember2023-03-31
0001487428hrzn:SemiconductorSectorMember2022-12-31
0001487428hrzn:SoftwareSectorMember2023-03-31
0001487428hrzn:SoftwareSectorMember2022-12-31
0001487428hrzn:EnergyEfficiencyMember2023-03-31
0001487428hrzn:EnergyEfficiencyMember2022-12-31
0001487428hrzn:OtherSustainabilitySectorMember2023-03-31
0001487428hrzn:OtherSustainabilitySectorMember2022-12-31
0001487428hrzn:DiagnosticsSectorMember2023-03-31
0001487428hrzn:DiagnosticsSectorMember2022-12-31
0001487428hrzn:OtherHealthcareSectorMember2023-03-31
0001487428hrzn:OtherHealthcareSectorMember2022-12-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMember2023-03-31
0001487428hrzn:SoftwareHealthcareInformationAndServiceMember2022-12-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberhrzn:CadrenalTherapeuticsIncMember2022-12-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberhrzn:CadrenalTherapeuticsIncMember2023-01-012023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerNoncontrolledMemberhrzn:CadrenalTherapeuticsIncMember2023-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMemberhrzn:HESPLLCMember2021-12-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMemberhrzn:HESPLLCMember2022-01-012022-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMemberhrzn:HESPLLCMember2022-03-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMember2021-12-31
0001487428us-gaap:InvestmentAffiliatedIssuerControlledMember2022-03-31
0001487428hrzn:MeasurementInputHypotheticalMarketYieldsMember2022-12-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2023-03-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2023-03-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2023-03-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2023-03-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2023-03-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2023-03-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2023-03-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2023-03-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2023-03-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2023-03-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-03-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2023-03-31
0001487428us-gaap:FairValueMeasurementsRecurringMember2023-03-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2022-12-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2022-12-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DebtMember2022-12-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2022-12-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2022-12-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:WarrantMember2022-12-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2022-12-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2022-12-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2022-12-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2022-12-31
0001487428us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-31
0001487428us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-31
0001487428us-gaap:FairValueMeasurementsRecurringMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:MinimumMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:MaximumMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputSharePriceMembersrt:MinimumMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputSharePriceMembersrt:MaximumMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputPriceVolatilityMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputPriceVolatilityMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputDiscountForLackOfMarketabilityMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberus-gaap:MeasurementInputDiscountForLackOfMarketabilityMembersrt:MinimumMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberhrzn:EstimatedTimeToExitMembersrt:MinimumMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberhrzn:EstimatedTimeToExitMembersrt:MaximumMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMemberhrzn:EstimatedTimeToExitMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberus-gaap:MeasurementInputDiscountRateMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:ProbabilityWeightingMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:ProbabilityWeightingMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberhrzn:LastEquityFinancingMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberus-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberhrzn:LastEquityFinancingMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Member2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:MinimumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:MaximumMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:HypotheticalMarketYieldMembersrt:WeightedAverageMemberus-gaap:ValuationTechniqueDiscountedCashFlowMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:MinimumMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:MaximumMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ProbabilityWeightingMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:ConvertibleNoteAnalysisMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputSharePriceMemberhrzn:ConvertibleNoteAnalysisMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberhrzn:ConvertibleNoteAnalysisMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputSharePriceMembersrt:MinimumMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputSharePriceMembersrt:MaximumMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputPriceVolatilityMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputPriceVolatilityMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputDiscountForLackOfMarketabilityMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberus-gaap:MeasurementInputDiscountForLackOfMarketabilityMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:EstimatedTimeToExitMembersrt:MinimumMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:EstimatedTimeToExitMembersrt:MaximumMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMemberhrzn:EstimatedTimeToExitMembersrt:WeightedAverageMemberhrzn:BlackscholesValuationModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberus-gaap:MeasurementInputDiscountRateMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberus-gaap:MeasurementInputDiscountRateMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:ProbabilityWeightingMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:OtherInvestmentsMemberhrzn:ProbabilityWeightingMembersrt:WeightedAverageMemberhrzn:MultipleProbabilityWeightedCashFlowModelMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberhrzn:LastEquityFinancingMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMemberus-gaap:MeasurementInputSharePriceMembersrt:WeightedAverageMemberhrzn:LastEquityFinancingMember2022-12-31
0001487428us-gaap:FairValueInputsLevel3Member2022-12-31
0001487428hrzn:The2026NotesMember2023-03-31
0001487428hrzn:The2026NotesMemberus-gaap:FairValueInputsLevel1Member2023-03-31
0001487428hrzn:The2027NotesMember2023-03-31
0001487428hrzn:The2027NotesMemberus-gaap:FairValueInputsLevel1Member2023-03-31
0001487428hrzn:AssetbackedNotes2019Memberus-gaap:FairValueInputsLevel3Member2023-03-31
0001487428hrzn:AssetbackedNotes2022Memberus-gaap:FairValueInputsLevel3Member2023-03-31
0001487428us-gaap:OtherInvestmentsMember2022-12-31
0001487428us-gaap:DebtMember2023-01-012023-03-31
0001487428us-gaap:WarrantMember2023-01-012023-03-31
0001487428us-gaap:EquitySecuritiesMember2023-01-012023-03-31
0001487428us-gaap:OtherInvestmentsMember2023-01-012023-03-31
0001487428us-gaap:OtherInvestmentsMember2023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMember2023-01-012023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMember2023-01-012023-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:EquitySecuritiesMember2023-01-012023-03-31
0001487428us-gaap:DebtMember2021-12-31
0001487428us-gaap:WarrantMember2021-12-31
0001487428us-gaap:EquitySecuritiesMember2021-12-31
0001487428us-gaap:OtherInvestmentsMember2021-12-31
0001487428us-gaap:DebtMember2022-01-012022-03-31
0001487428us-gaap:WarrantMember2022-01-012022-03-31
0001487428us-gaap:EquitySecuritiesMember2022-01-012022-03-31
0001487428us-gaap:OtherInvestmentsMember2022-01-012022-03-31
0001487428us-gaap:DebtMember2022-03-31
0001487428us-gaap:WarrantMember2022-03-31
0001487428us-gaap:EquitySecuritiesMember2022-03-31
0001487428us-gaap:OtherInvestmentsMember2022-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:DebtMember2022-01-012022-03-31
0001487428us-gaap:FairValueInputsLevel3Memberus-gaap:WarrantMember2022-01-012022-03-31
0001487428hrzn:KeyFacilityMember2023-03-31
0001487428hrzn:KeyFacilityMember2022-12-31
0001487428hrzn:NYLFacilityMember2023-03-31
0001487428hrzn:NYLFacilityMember2022-12-31
0001487428hrzn:AssetbackedNotes2019Member2023-03-31
0001487428hrzn:AssetbackedNotes2019Member2022-12-31
0001487428hrzn:AssetbackedNotes2022Member2023-03-31
0001487428hrzn:AssetbackedNotes2022Member2022-12-31
0001487428hrzn:The2027NotesMember2022-12-31
0001487428hrzn:The2026NotesMember2022-12-31
0001487428srt:MinimumMember2023-01-012023-03-31
0001487428hrzn:KeyFacilityMember2021-06-22
0001487428hrzn:KeyFacilityMemberus-gaap:PrimeRateMember2023-01-012023-03-31
0001487428hrzn:KeyFacilityMembersrt:MinimumMemberus-gaap:PrimeRateMember2023-01-012023-03-31
0001487428hrzn:KeyFacilityMemberus-gaap:PrimeRateMember2023-03-31
0001487428hrzn:KeyFacilityMemberus-gaap:PrimeRateMember2022-12-31
0001487428hrzn:KeyFacilityMember2023-01-012023-03-31
0001487428hrzn:KeyFacilityMember2021-01-012021-12-31
0001487428hrzn:NYLFacilityMember2020-04-21
0001487428hrzn:NYLFacilityMembersrt:MinimumMemberhrzn:USDMidmarketWwapRateMember2020-04-212020-04-21
0001487428hrzn:NYLFacilityMembersrt:MaximumMemberhrzn:USDMidmarketWwapRateMember2020-04-212020-04-21
0001487428hrzn:NYLFacilityMember2022-02-252022-02-25
0001487428hrzn:NYLFacilityMember2022-02-25
0001487428hrzn:NYLFacilityMemberhrzn:USDMidmarketWwapRateMember0202-02-252022-02-25
0001487428hrzn:The2026NotesMember2021-03-30
0001487428hrzn:The2026NotesUnderwriterOptionMember2021-03-30
0001487428hrzn:The2027NotesMember2022-06-15
0001487428hrzn:The2027NotesUnderwriterOptionMember2022-06-15
0001487428us-gaap:CommitmentsToExtendCreditMember2023-03-31
0001487428us-gaap:CommitmentsToExtendCreditMember2022-12-31
0001487428hrzn:BrightinsightIncMember2023-03-31
0001487428hrzn:BrightinsightIncMember2022-12-31
0001487428hrzn:BritecoreHoldingsIncMember2023-03-31
0001487428hrzn:BritecoreHoldingsIncMember2022-12-31
0001487428hrzn:CastleCreekBiosciencesMember2023-03-31
0001487428hrzn:CastleCreekBiosciencesMember2022-12-31
0001487428hrzn:CorinthMedtechIncMember2023-03-31
0001487428hrzn:CorinthMedtechIncMember2022-12-31
0001487428hrzn:DivergentTechnologiesIncMember2023-03-31
0001487428hrzn:DivergentTechnologiesIncMember2022-12-31
0001487428hrzn:Engage3LLCMember2023-03-31
0001487428hrzn:Engage3LLCMember2022-12-31
0001487428hrzn:GroundspeedAnalyticsIncMember2023-03-31
0001487428hrzn:GroundspeedAnalyticsIncMember2022-12-31
0001487428hrzn:HoundLabsIncMember2023-03-31
0001487428hrzn:HoundLabsIncMember2022-12-31
0001487428hrzn:KSQTherapeuticsIncMember2023-03-31
0001487428hrzn:KSQTherapeuticsIncMember2022-12-31
0001487428hrzn:LyticsIncMember2023-03-31
0001487428hrzn:LyticsIncMember2022-12-31
0001487428hrzn:NativeMicrobialsIncMember2023-03-31
0001487428hrzn:NativeMicrobialsIncMember2022-12-31
0001487428hrzn:NoodlePartnersIncMember2023-03-31
0001487428hrzn:NoodlePartnersIncMember2022-12-31
0001487428hrzn:OptoroIncMember2023-03-31
0001487428hrzn:OptoroIncMember2022-12-31
0001487428hrzn:PdsBiotechnologyCorporationMember2023-03-31
0001487428hrzn:PdsBiotechnologyCorporationMember2022-12-31
0001487428hrzn:RobinHealthcareIncMember2023-03-31
0001487428hrzn:RobinHealthcareIncMember2022-12-31
0001487428hrzn:ScientiaVascularIncMember2023-03-31
0001487428hrzn:ScientiaVascularIncMember2022-12-31
0001487428hrzn:SlingshotAerospaceIncMember2023-03-31
0001487428hrzn:SlingshotAerospaceIncMember2022-12-31
0001487428hrzn:SwiftHealthSystemsIncMember2023-03-31
0001487428hrzn:SwiftHealthSystemsIncMember2022-12-31
0001487428hrzn:TemperpackTechnologiesIncMember2023-03-31
0001487428hrzn:TemperpackTechnologiesIncMember2022-12-31
0001487428hrzn:DebtInvestmentsMemberhrzn:InvestmentConcentrationRiskMemberhrzn:FiveLargestDebtInvestmentsMember2023-01-012023-03-31
0001487428hrzn:DebtInvestmentsMemberhrzn:InvestmentConcentrationRiskMemberhrzn:FiveLargestDebtInvestmentsMember2022-01-012022-12-31
0001487428hrzn:DebtInvestmentsMemberhrzn:InvestmentIncomeConcentrationRiskMemberhrzn:FiveLargestDebtInvestmentsMember2023-01-012023-03-31
0001487428hrzn:DebtInvestmentsMemberhrzn:InvestmentIncomeConcentrationRiskMemberhrzn:FiveLargestDebtInvestmentsMember2022-01-012022-03-31
0001487428hrzn:First2232023DividendMember2023-01-012023-03-31
0001487428hrzn:Second2232023DividendMember2023-01-012023-03-31
0001487428hrzn:Third2232023DividendMember2023-01-012023-03-31
0001487428hrzn:First10282022DividendMember2022-01-012022-12-31
0001487428hrzn:Second10282022DividendMember2022-01-012022-12-31
0001487428hrzn:Third10282022DividendMember2022-01-012022-12-31
0001487428hrzn:Fourth10282022DividendMember2022-01-012022-12-31
0001487428hrzn:First7292022DividendMember2022-01-012022-12-31
0001487428hrzn:Second7292022DividendMember2022-01-012022-12-31
0001487428hrzn:Third7292022DividendMember2022-01-012022-12-31
0001487428hrzn:First42922DividendMember2022-01-012022-12-31
0001487428hrzn:Second4292022DividendMember2022-01-012022-12-31
0001487428hrzn:Third4292022DividendMember2022-01-012022-12-31
0001487428hrzn:First2252022DividendMember2022-01-012022-12-31
0001487428hrzn:Second2252022DividendMember2022-01-012022-12-31
0001487428hrzn:Third2252022DividendMember2022-01-012022-12-31
00014874282022-01-012022-12-31
0001487428hrzn:June152023DividendMembersrt:ScenarioForecastMember2023-04-012023-12-31
0001487428hrzn:July172023DividendMembersrt:ScenarioForecastMember2023-04-012023-12-31
0001487428hrzn:August162023DividendMembersrt:ScenarioForecastMember2023-04-012023-12-31
0001487428us-gaap:SubsequentEventMemberhrzn:The2021EquityDistributionAgreementMember2023-04-012023-04-30
Table of Contents
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-Q
(Mark One)
☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
| |
FOR THE QUARTERLY PERIOD ENDED March 31, 2023 |
| |
OR |
| |
☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
FOR THE TRANSITION PERIOD FROM _____TO
COMMISSION FILE NUMBER: 814-00802
HORIZON TECHNOLOGY FINANCE CORPORATION
(Exact name of registrant as specified in its charter)
Delaware | | 27-2114934 |
(State or other jurisdiction of incorporation or organization) | | (I.R.S. Employer Identification No.) |
312 Farmington Avenue | | |
Farmington, CT | | 06032 |
(Address of principal executive offices) | | (Zip Code) |
(860) 676‑8654
(Registrant’s telephone number, including area code)
Indicate 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 ☐
Indicate 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 ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b‑2 of the Exchange Act.
Large accelerated filer | ☐ | | Accelerated filer | ☐ |
Non-accelerated filer | ☒ | | Smaller reporting company | ☐ |
Emerging growth company | ☐ | | | |
| |
If 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 | ☐ |
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b‑2 of the Exchange Act). Yes ☐ No ☒
The number of shares of the registrant’s common stock traded under the symbol “HRZN” on the Nasdaq Global Select Market, $0.001 par value per share, outstanding as of May 2, 2023 was 28,656,554.
Securities registered pursuant to Section 12(b) of the Act:
Title of each class | | Ticker symbol(s) | | Name of each exchange on which registered |
Common Stock, par value $0.001 per share | | HRZN | | The Nasdaq Stock Market LLC |
4.875% Notes due 2026 | | HTFB | | The New York Stock Exchange |
6.25% Notes due 2027 | | HTFC | | The New York Stock Exchange |
HORIZON TECHNOLOGY FINANCE CORPORATION
FORM 10‑Q
TABLE OF CONTENTS
PART I: FINANCIAL INFORMATION
Item 1. Consolidated Financial Statements
Horizon Technology Finance Corporation and Subsidiaries
Consolidated Statements of Assets and Liabilities
(Dollars in thousands, except share and per share data)
| | March 31, | | | December 31, | |
| | 2023 | | | 2022 | |
| | (Unaudited) | | | | | |
Assets | | | | | | | | |
Non-affiliate investments at fair value (cost of $724,162 and $721,248, respectively) | | $ | 714,466 | | | $ | 720,026 | |
Non-controlled affiliate investments at fair value (cost of $0 and $0, respectively) (Note 5) | | | 846 | | | | — | |
Total investments at fair value (cost of $724,162 and $721,248, respectively) (Note 4) | | | 715,312 | | | | 720,026 | |
Cash | | | 19,844 | | | | 20,612 | |
Investments in money market funds | | | 23,698 | | | | 7,066 | |
Restricted investments in money market funds | | | 2,987 | | | | 2,788 | |
Interest receivable | | | 13,843 | | | | 13,573 | |
Other assets | | | 2,554 | | | | 2,761 | |
Total assets | | $ | 778,238 | | | $ | 766,826 | |
| | | | | | | | |
Liabilities | | | | | | | | |
Borrowings (Note 7) | | $ | 439,645 | | | $ | 434,078 | |
Distributions payable | | | 9,365 | | | | 9,159 | |
Base management fee payable (Note 3) | | | 1,059 | | | | 1,065 | |
Incentive fee payable (Note 3) | | | 2,978 | | | | 1,392 | |
Other accrued expenses | | | 3,508 | | | | 2,684 | |
Total liabilities | | | 456,555 | | | | 448,378 | |
| | | | | | | | |
Commitments and contingencies (Notes 3 and 8) | | | | | | | | |
| | | | | | | | |
Net assets | | | | | | | | |
Preferred stock, par value $0.001 per share, 1,000,000 shares authorized, zero shares issued and outstanding as of March 31, 2023 and December 31, 2022 | | | — | | | | — | |
Common stock, par value $0.001 per share, 100,000,000 shares authorized, 28,544,822 and 27,920,838 shares issued and 28,377,357 and 27,753,373 shares outstanding as of March 31, 2023 and December 31, 2022, respectively | | | 30 | | | | 29 | |
Paid-in capital in excess of par | | | 393,312 | | | | 385,921 | |
Distributable earnings (loss) | | | (71,659 | ) | | | (67,502 | ) |
Total net assets | | | 321,683 | | | | 318,448 | |
Total liabilities and net assets | | $ | 778,238 | | | $ | 766,826 | |
Net asset value per common share | | $ | 11.34 | | | $ | 11.47 | |
See Notes to Consolidated Financial Statements
Horizon Technology Finance Corporation and Subsidiaries
Consolidated Statements of Operations (Unaudited)
(Dollars in thousands, except share and per share data)
| | For the Three Months Ended | |
| | March 31, | |
| | 2023 | | | 2022 | |
Investment income | | | | | | | | |
Interest income on non-affiliate investments | | $ | 27,399 | | | $ | 13,853 | |
Fee income on non-affiliate investments | | | 638 | | | | 351 | |
Total investment income | | | 28,037 | | | | 14,204 | |
Expenses | | | | | | | | |
Interest expense | | | 7,120 | | | | 3,424 | |
Base management fee (Note 3) | | | 3,201 | | | | 2,244 | |
Performance based incentive fee (Note 3) | | | 2,978 | | | | 1,424 | |
Administrative fee (Note 3) | | | 440 | | | | 362 | |
Professional fees | | | 658 | | | | 577 | |
General and administrative | | | 445 | | | | 344 | |
Total expenses | | | 14,842 | | | | 8,375 | |
Net investment income before excise tax | | | 13,195 | | | | 5,829 | |
Provision for excise tax | | | 184 | | | | 100 | |
Net investment income | | | 13,011 | | | | 5,729 | |
Net realized and unrealized loss | | | | | | | | |
Net realized (loss) gain on non-affiliate investments | | | (168 | ) | | | 30 | |
Net realized (loss) gain on investments | | | (168 | ) | | | 30 | |
Net unrealized depreciation on non-affiliate investments | | | (8,383 | ) | | | (2,287 | ) |
Net unrealized appreciation on non-controlled affiliate investments | | | 846 | | | | — | |
Net unrealized appreciation on controlled affiliate investments | | | — | | | | 50 | |
Net unrealized depreciation on investments | | | (7,537 | ) | | | (2,237 | ) |
Net realized and unrealized loss | | | (7,705 | ) | | | (2,207 | ) |
Net increase in net assets resulting from operations | | $ | 5,306 | | | $ | 3,522 | |
Net investment income per common share | | $ | 0.46 | | | $ | 0.26 | |
Net increase in net assets resulting from operations per common share | | $ | 0.19 | | | $ | 0.16 | |
Distributions declared per share | | $ | 0.33 | | | $ | 0.30 | |
Weighted average shares outstanding | | | 28,227,100 | | | | 21,904,160 | |
See Notes to Consolidated Financial Statements
4
Horizon Technology Finance Corporation and Subsidiaries
Consolidated Statements of Changes in Net Assets (Unaudited)
(Dollars in thousands, except share data)
| | | | | | | | | | Paid-In Capital | | | | | | | | | |
| | Common Stock | | | in Excess of | | | Distributable | | | Total Net | |
| | Shares | | | Amount | | | Par | | | Earnings | | | Assets | |
Balance at December 31, 2021 | | | 21,217,460 | | | $ | 22 | | | $ | 301,359 | | | | (56,046 | ) | | $ | 245,335 | |
Issuance of common stock, net of offering costs | | | 2,750,171 | | | | 3 | | | | 38,184 | | | | — | | | | 38,187 | |
Net increase in net assets resulting from operations, net of excise tax: | | | | | | | | | | | | | | | | | | | | |
Net investment income, net of excise tax | | | — | | | | — | | | | — | | | | 5,729 | | | | 5,729 | |
Net realized gain on investments | | | — | | | | — | | | | — | | | | 30 | | | | 30 | |
Net unrealized depreciation on investments | | | — | | | | — | | | | — | | | | (2,237 | ) | | | (2,237 | ) |
Issuance of common stock under dividend reinvestment plan | | | 9,506 | | | | — | | | | 145 | | | | — | | | | 145 | |
Distributions declared | | | — | | | | — | | | | — | | | | (7,200 | ) | | | (7,200 | ) |
Balance at March 31, 2022 | | | 23,977,137 | | | | 25 | | | | 339,688 | | | | (59,724 | ) | | | 279,989 | |
| | | | | | | | | | | | | | | | | | | | |
Balance at December 31, 2022 | | | 27,753,373 | | | | 29 | | | | 385,921 | | | | (67,502 | ) | | | 318,448 | |
Issuance of common stock, net of offering costs | | | 605,848 | | | | 1 | | | | 7,173 | | | | — | | | | 7,174 | |
Net increase in net assets resulting from operations, net of excise tax: | | | | | | | | | | | | | | | | | | | | |
Net investment income, net of excise tax | | | — | | | | — | | | | — | | | | 13,011 | | | | 13,011 | |
Net realized loss on investments | | | — | | | | — | | | | — | | | | (168 | ) | | | (168 | ) |
Net unrealized depreciation on investments | | | — | | | | — | | | | — | | | | (7,537 | ) | | | (7,537 | ) |
Issuance of common stock under dividend reinvestment plan | | | 18,136 | | | | — | | | | 218 | | | | — | | | | 218 | |
Distributions declared | | | — | | | | — | | | | — | | | | (9,463 | ) | | | (9,463 | ) |
Balance at March 31, 2023 | | | 28,377,357 | | | $ | 30 | | | $ | 393,312 | | | $ | (71,659 | ) | | $ | 321,683 | |
See Notes to Consolidated Financial Statements
Horizon Technology Finance Corporation and Subsidiaries
Consolidated Statements of Cash Flows (Unaudited)
(Dollars in thousands)
| | For the three months ended March 31, | |
| | 2023 | | | 2022 | |
Cash flows from operating activities: | | | | | | | | |
Net increase in net assets resulting from operations | | $ | 5,306 | | | $ | 3,522 | |
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities: | | | | | | | | |
Amortization of debt issuance costs | | | 478 | | | | 336 | |
Net realized loss (gain) on investments | | | 168 | | | | (30 | ) |
Net unrealized depreciation on investments | | | 7,537 | | | | 2,237 | |
Purchase of investments | | | (47,008 | ) | | | (94,485 | ) |
Principal payments received on investments | | | 39,756 | | | | |