Listed

Koss Corp

KOSSNasdaqCIK 56701TechnologyFiscal year ends Jun 30

Latest reported revenue, Q4 FY2026$3.3mRevenue, Q4 FY2026, three months to 2026-06-30$3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figureThree months to Jun 30, 2026, from the 10-K filed Aug 28, 2026.

Latest quarter: Q4 FY2026

Three months to Jun 30, 2026, against the same quarter a year earlier.

  • Revenue$3.3mRevenue, Q4 FY2026, three months to 2026-06-30$3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure+5.8% on a year earlier
  • Gross margin61.0%Gross margin, Q4 FY2026, three months to 2026-06-30. gross profit / revenueGross profit: $2.0m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure+25.0 pts on a year earlier
  • Operating margin8.2%Operating margin, Q4 FY2026, three months to 2026-06-30. operating income / revenueOperating income: $267.3k. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure+22.4 pts on a year earlier
  • Net margin14.6%Net margin, Q4 FY2026, three months to 2026-06-30. net income / revenueNet income: $476.8k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure+22.2 pts on a year earlier
  • Diluted EPSnot reported (Diluted EPS not reported)No year-earlier figure to compare
  • Free cash flow$1.0mFree cash flow, Q4 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $1.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Capital expenditure: $1. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figureSign changed from a year earlier

Last eight quarters

Full statements
Revenue$3.3mGross margin 61.0%
Diluted EPS−$0.06, Q3 FY2026
Free cash flow$1.0m, Q4 FY2026
Koss Corp, key figures for the last eight quarters
Line itemUnitQ1 FY20252024-09-30Q2 FY20252024-12-31Q3 FY20252025-03-31Q4 FY20252025-06-30Q1 FY20262025-09-30Q2 FY20262025-12-31Q3 FY20262026-03-31Q4 FY20262026-06-30Shape over the periods
Revenue$k3,202Revenue, Q1 FY2025, three months to 2024-09-30$3.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure3,557Revenue, Q2 FY2025, three months to 2024-12-31$3.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure2,781Revenue, Q3 FY2025, three months to 2025-03-31$2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure3,084Revenue, Q4 FY2025, three months to 2025-06-30$3.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure4,071Revenue, Q1 FY2026, three months to 2025-09-30$4.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure2,861Revenue, Q2 FY2026, three months to 2025-12-31$2.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure2,825Revenue, Q3 FY2026, three months to 2026-03-31$2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure3,264Revenue, Q4 FY2026, three months to 2026-06-30$3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure
Gross margin%36.6%Gross margin, Q1 FY2025, three months to 2024-09-30. gross profit / revenueGross profit: $1.2m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $3.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure39.5%Gross margin, Q2 FY2025, three months to 2024-12-31. gross profit / revenueGross profit: $1.4m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $3.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure39.0%Gross margin, Q3 FY2025, three months to 2025-03-31. gross profit / revenueGross profit: $1.1m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure36.0%Gross margin, Q4 FY2025, three months to 2025-06-30. gross profit / revenueGross profit: $1.1m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure40.0%Gross margin, Q1 FY2026, three months to 2025-09-30. gross profit / revenueGross profit: $1.6m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $4.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure29.0%Gross margin, Q2 FY2026, three months to 2025-12-31. gross profit / revenueGross profit: $830.8k. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $2.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure35.5%Gross margin, Q3 FY2026, three months to 2026-03-31. gross profit / revenueGross profit: $1.0m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure61.0%Gross margin, Q4 FY2026, three months to 2026-06-30. gross profit / revenueGross profit: $2.0m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure
Operating margin%(19.9%)Operating margin, Q1 FY2025, three months to 2024-09-30. operating income / revenueOperating income: −$637.1k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $3.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(4.0%)Operating margin, Q2 FY2025, three months to 2024-12-31. operating income / revenueOperating income: −$141.8k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $3.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(18.7%)Operating margin, Q3 FY2025, three months to 2025-03-31. operating income / revenueOperating income: −$519.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure(14.2%)Operating margin, Q4 FY2025, three months to 2025-06-30. operating income / revenueOperating income: −$439.2k. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure(1.1%)Operating margin, Q1 FY2026, three months to 2025-09-30. operating income / revenueOperating income: −$46.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $4.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(35.5%)Operating margin, Q2 FY2026, three months to 2025-12-31. operating income / revenueOperating income: −$1.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $2.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(25.5%)Operating margin, Q3 FY2026, three months to 2026-03-31. operating income / revenueOperating income: −$719.1k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure8.2%Operating margin, Q4 FY2026, three months to 2026-06-30. operating income / revenueOperating income: $267.3k. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure
Net margin%(13.1%)Net margin, Q1 FY2025, three months to 2024-09-30. net income / revenueNet income: −$419.5k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $3.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure2.6%Net margin, Q2 FY2025, three months to 2024-12-31. net income / revenueNet income: $94.1k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $3.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(11.4%)Net margin, Q3 FY2025, three months to 2025-03-31. net income / revenueNet income: −$316.7k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure(7.5%)Net margin, Q4 FY2025, three months to 2025-06-30. net income / revenueNet income: −$232.7k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure6.0%Net margin, Q1 FY2026, three months to 2025-09-30. net income / revenueNet income: $243.7k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Revenue: $4.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(19.8%)Net margin, Q2 FY2026, three months to 2025-12-31. net income / revenueNet income: −$565.4k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Revenue: $2.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(19.3%)Net margin, Q3 FY2026, three months to 2026-03-31. net income / revenueNet income: −$546.6k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Revenue: $2.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figure14.6%Net margin, Q4 FY2026, three months to 2026-06-30. net income / revenueNet income: $476.8k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Revenue: $3.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure
Diluted EPS$ per share(0.05)Diluted EPS, Q1 FY2025, three months to 2024-09-30−$0.05 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure0.01Diluted EPS, Q2 FY2025, three months to 2024-12-31$0.01 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(0.03)Diluted EPS, Q3 FY2025, three months to 2025-03-31−$0.03 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figurenot reported (Diluted EPS not reported)0.03Diluted EPS, Q1 FY2026, three months to 2025-09-30$0.03 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(0.06)Diluted EPS, Q2 FY2026, three months to 2025-12-31−$0.06 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-01-30, accession 0000056701-26-000008.Report this figure(0.06)Diluted EPS, Q3 FY2026, three months to 2026-03-31−$0.06 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0000056701-26-000017.Report this figurenot reported (Diluted EPS not reported)
Free cash flow$k(156)Free cash flow, Q1 FY2025, three months to 2024-09-30. operating cash flow − capital expenditureOperating cash flow: $201.6k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Capital expenditure: $357.2k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(314)Free cash flow, Q2 FY2025, three months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: −$252.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-01-30, accession 0000056701-26-000008. Derived: 6-month figure less the 3-month figure.Capital expenditure: $62.4k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-01-30, accession 0000056701-26-000008. Derived: 6-month figure less the 3-month figure.Report this figure306Free cash flow, Q3 FY2025, three months to 2025-03-31. operating cash flow − capital expenditureOperating cash flow: $370.4k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0000056701-26-000017. Derived: 9-month figure less the 6-month figure.Capital expenditure: $64.2k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0000056701-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure(542)Free cash flow, Q4 FY2025, three months to 2025-06-30. operating cash flow − capital expenditureOperating cash flow: −$534.9k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Capital expenditure: $7.0k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure762Free cash flow, Q1 FY2026, three months to 2025-09-30. operating cash flow − capital expenditureOperating cash flow: $762.6k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Capital expenditure: $1.1k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-10-31, accession 0000056701-25-000059.Report this figure(1,073)Free cash flow, Q2 FY2026, three months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: −$760.8k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-01-30, accession 0000056701-26-000008. Derived: 6-month figure less the 3-month figure.Capital expenditure: $311.7k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-01-30, accession 0000056701-26-000008. Derived: 6-month figure less the 3-month figure.Report this figure(586)Free cash flow, Q3 FY2026, three months to 2026-03-31. operating cash flow − capital expenditureOperating cash flow: −$582.6k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0000056701-26-000017. Derived: 9-month figure less the 6-month figure.Capital expenditure: $3.7k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0000056701-26-000017. Derived: 9-month figure less the 6-month figure.Report this figure1,020Free cash flow, Q4 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $1.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Capital expenditure: $1. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-08-28, accession 0000056701-26-000034. Derived: 12-month figure less the 9-month figure.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Last five fiscal years

Revenue$13.0mGross margin 41.9%
Diluted EPS−$0.04, FY2026
Free cash flow$122.7k, FY2026
Koss Corp, key figures for the last five fiscal years
Line itemUnitFY20222022-06-30FY20232023-06-30FY20242024-06-30FY20252025-06-30FY20262026-06-30Shape over the periods
Revenue$m17.7Revenue, FY2022, twelve months to 2022-06-30$17.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure13.1Revenue, FY2023, twelve months to 2023-06-30$13.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure12.3Revenue, FY2024, twelve months to 2024-06-30$12.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure12.6Revenue, FY2025, twelve months to 2025-06-30$12.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure13.0Revenue, FY2026, twelve months to 2026-06-30$13.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure
Gross margin%37.9%Gross margin, FY2022, twelve months to 2022-06-30. gross profit / revenueGross profit: $6.7m. XBRL concept us-gaap:GrossProfit. 10-K filed 2023-08-25, accession 0000056701-23-000026.Revenue: $17.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure34.0%Gross margin, FY2023, twelve months to 2023-06-30. gross profit / revenueGross profit: $4.5m. XBRL concept us-gaap:GrossProfit. 10-K filed 2024-08-30, accession 0000056701-24-000028.Revenue: $13.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure34.1%Gross margin, FY2024, twelve months to 2024-06-30. gross profit / revenueGross profit: $4.2m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-08-29, accession 0000056701-25-000044.Revenue: $12.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure37.8%Gross margin, FY2025, twelve months to 2025-06-30. gross profit / revenueGross profit: $4.8m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $12.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure41.9%Gross margin, FY2026, twelve months to 2026-06-30. gross profit / revenueGross profit: $5.5m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $13.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure
Operating margin%5.1%Operating margin, FY2022, twelve months to 2022-06-30. operating income / revenueOperating income: $902.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2023-08-25, accession 0000056701-23-000026.Revenue: $17.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure(190.0%)Operating margin, FY2023, twelve months to 2023-06-30. operating income / revenueOperating income: −$24.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2024-08-30, accession 0000056701-24-000028.Revenue: $13.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure(15.3%)Operating margin, FY2024, twelve months to 2024-06-30. operating income / revenueOperating income: −$1.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-08-29, accession 0000056701-25-000044.Revenue: $12.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure(13.8%)Operating margin, FY2025, twelve months to 2025-06-30. operating income / revenueOperating income: −$1.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $12.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure(11.6%)Operating margin, FY2026, twelve months to 2026-06-30. operating income / revenueOperating income: −$1.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $13.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure
Net margin%7.2%Net margin, FY2022, twelve months to 2022-06-30. net income / revenueNet income: $1.3m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2023-08-25, accession 0000056701-23-000026.Revenue: $17.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure63.5%Net margin, FY2023, twelve months to 2023-06-30. net income / revenueNet income: $8.3m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2024-08-30, accession 0000056701-24-000028.Revenue: $13.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure(7.8%)Net margin, FY2024, twelve months to 2024-06-30. net income / revenueNet income: −$950.9k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-08-29, accession 0000056701-25-000044.Revenue: $12.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure(6.9%)Net margin, FY2025, twelve months to 2025-06-30. net income / revenueNet income: −$874.8k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $12.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure(3.0%)Net margin, FY2026, twelve months to 2026-06-30. net income / revenueNet income: −$391.5k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-08-28, accession 0000056701-26-000034.Revenue: $13.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure
Diluted EPS$ per share0.13Diluted EPS, FY2022, twelve months to 2022-06-30$0.13 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure0.85Diluted EPS, FY2023, twelve months to 2023-06-30$0.85 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure(0.10)Diluted EPS, FY2024, twelve months to 2024-06-30−$0.10 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure(0.09)Diluted EPS, FY2025, twelve months to 2025-06-30−$0.09 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure(0.04)Diluted EPS, FY2026, twelve months to 2026-06-30−$0.04 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure
Free cash flow$m(1.1)Free cash flow, FY2022, twelve months to 2022-06-30. operating cash flow − capital expenditureOperating cash flow: −$942.5k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2023-08-25, accession 0000056701-23-000026.Capital expenditure: $108.2k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2023-08-25, accession 0000056701-23-000026.Report this figure10.6Free cash flow, FY2023, twelve months to 2023-06-30. operating cash flow − capital expenditureOperating cash flow: $10.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2024-08-30, accession 0000056701-24-000028.Capital expenditure: $98.4k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2024-08-30, accession 0000056701-24-000028.Report this figure(0.7)Free cash flow, FY2024, twelve months to 2024-06-30. operating cash flow − capital expenditureOperating cash flow: −$190.5k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-08-29, accession 0000056701-25-000044.Capital expenditure: $461.8k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-08-29, accession 0000056701-25-000044.Report this figure(0.7)Free cash flow, FY2025, twelve months to 2025-06-30. operating cash flow − capital expenditureOperating cash flow: −$214.9k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-08-28, accession 0000056701-26-000034.Capital expenditure: $490.7k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure0.1Free cash flow, FY2026, twelve months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $439.2k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-08-28, accession 0000056701-26-000034.Capital expenditure: $316.5k. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-08-28, accession 0000056701-26-000034.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Insider purchases and sales

All insider transactions

The last 20 open-market transactions reported on Form 4 (codes P and S). The reported price is the price per share the insider stated on the form: filing data, not a market price.

No open-market purchases or sales by insiders are in coverage from Nov 2024 to Oct 2026.

No open-market purchases or sales by insiders are in coverage for this company.

Funds that report holding it

All funds

From each manager's latest Form 13F, largest reported value first. Reported value is as filed at the quarter end: filing data, not a price. A put or call is an option position, not shares held.

Funds that report holding Koss Corp
FundQuarter endedReported valueSharesPut or callChange on the quarter before
VANGUARD CAPITAL MANAGEMENT LLC2026-06-30$760.3k189,607Unchanged
BlackRock, Inc.2026-06-30$380.9k94,977Added+5,376
GEODE CAPITAL MANAGEMENT, LLC2026-06-30$238.6k59,491Added+3,578
CITADEL ADVISORS LLC2026-06-30$132.6k33,058New+33,058
VANGUARD FIDUCIARY TRUST CO2026-06-30$123.3k30,740Reduced−594
DIMENSIONAL FUND ADVISORS LP2026-06-30$98.0k24,433Added+2,822
STATE STREET CORP2026-06-30$72.1k17,974Unchanged
JAMES INVESTMENT RESEARCH, INC.2026-06-30$62.1k15,475Unchanged
NewEdge Advisors, LLC2026-06-30$62.1k15,475Unchanged
NORTHERN TRUST CORP2026-06-30$41.3k10,287Reduced−3,998

Recent filings

All 481 filings

Reports and events: 10-K, 10-Q, 8-K, proxy statements and ownership schedules.

Koss Corp, recent filings
FiledFormWhat it isAccession number
2026-10-2917:20 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0000056701-26-000046
2026-10-1610:12 ET8-K5.07 Shareholder vote results0000056701-26-000041
2026-08-2818:10 ETDEF 14AProxy statementPeriod 2026-08-270000056701-26-000036
2026-08-2818:01 ET10-KAnnual reportPeriod 2026-06-300000056701-26-000034
2026-08-2717:19 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0000056701-26-000032
2026-05-0818:07 ET10-QQuarterly reportPeriod 2026-03-310000056701-26-000017
2026-05-0717:19 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0000056701-26-000015
2026-01-3018:10 ET10-QQuarterly reportPeriod 2025-12-310000056701-26-000008
2026-01-2917:18 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0000056701-26-000006
2025-10-3118:23 ET10-QQuarterly reportPeriod 2025-09-300000056701-25-000059

Latest annual report

Form 10-K for the fiscal year ended Jun 30, 2026Filed Aug 28, 2026. Its page lists the documents and the extracted sections, such as Business and Risk factors.

Forecast league

Q1 FY2027, the quarter ended 2026-09-30, locked when the 8-K was accepted. It is scored when the 10-Q or 10-K is ingested.See the target

About the filer

CIK
56701
Tickers
KOSS
Exchange
Nasdaq
SIC code
3651 Household Audio & Video Equipment
Sector
Technology
Fiscal year ends
Jun 30
Incorporated in
DE
Filer category
Non-accelerated filer<br>Smaller reporting company

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 29, 2026, 17:21 ET. Listed shows no prices and gives no investment advice.