1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jul 1, 2021.
The trade is 100.0% of the 2,500 shares held after it.
No other insider bought within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director LILLIE LENORE bought about $12.4K of KOSS on Dec 2, 2025, the largest insider purchase at the company since 2022; 6 funds added in the latest 13F quarter.
3 earlier Form 4 trades (code P or S) here by this insider (3 sales), the last on Jun 12, 2025.
The trade is 94.8% of the 26,000 shares held after it.
1 other insider sold within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: VP - Marketing & Product Koss Michael J Jr sold about $117.8K of KOSS on Jun 13, 2025; 1 other insider sold within 30 days and 6 funds added in the latest 13F quarter.
10 earlier Form 4 trades (code P or S) here by this insider (10 sales), the last on Jun 11, 2025.
The trade is 0.8% of the 196,028 shares held after it.
1 other insider sold within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Vice President - Sales KOSS JOHN C JR sold about $7.5K of KOSS on Jun 12, 2025; 1 other insider sold within 30 days and 6 funds added in the latest 13F quarter.
2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on Sep 15, 2021.
The trade is 23.1% of the 26,000 shares held after it.
1 other insider sold within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: VP - Marketing & Product Koss Michael J Jr sold about $29.5K of KOSS on Jun 12, 2025; 1 other insider sold within 30 days and 6 funds added in the latest 13F quarter.
9 earlier Form 4 trades (code P or S) here by this insider (9 sales), the last on Jun 10, 2025.
The trade is 12.0% of the 196,028 shares held after it.
1 other insider sold within 30 days.
6 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Vice President - Sales KOSS JOHN C JR sold about $132.8K of KOSS on Jun 11, 2025; 1 other insider sold within 30 days and 6 funds added in the latest 13F quarter.
29 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Nobody has filed for crossing 5%. That is a fact, not missing data.
KOSS planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
KOSS mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
iShares Micro-Cap ETF
$77.0K position · as of 2026-06-30
0.0%
1290 VT Micro Cap Portfolio
$4.2K position · as of 2026-06-30
0.0%
Dimensional US Sustainability Core 1 ETF
$7.4K position · as of 2026-07-31
0.0%
VANGUARD EXTENDED MARKET INDEX FUND
$270.5K position · as of 2026-06-30
0.0%
U.S. MICRO CAP PORTFOLIO
$17.8K position · as of 2026-07-31
0.0%
Dimensional US Core Equity 1 ETF
$7.3K position · as of 2026-07-31
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$382.6K
$382.6K
$487.1K
+8%
n/a
2024
$379.5K
$572.0K
$278.6K
+38%
n/a
2023
$383.8K
$424.8K
$288.1K
+20%
n/a
2022
$703.6K
$820.9K
$280.7K
-48%
n/a
2021
$416.7K
-$4.0M
$233.8K
-69%
n/a
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows 6 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$13.0M
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM KOSS
FY Jun 2026
$13.0M
FY Jun 2025
$12.6M
FY Jun 2024
$12.3M
FY Jun 2023
$13.1M
FY Jun 2022
$17.7M
Jun 2026
$3.3M
Mar 2026
$2.8M
Dec 2025
$2.9M
Sep 2025
$4.1M
Jun 2025
$3.1M
Mar 2025
$2.8M
Dec 2024
$3.6M
Sep 2024
$3.2M
At each fiscal year end
Single quarter
Net margin, TTM
-3.0%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM KOSS
FY Jun 2026
-3.0%
FY Jun 2025
-6.9%
FY Jun 2024
-7.8%
FY Jun 2023
+63.5%
FY Jun 2022
+7.2%
Jun 2026
+14.6%
Mar 2026
-19.3%
Dec 2025
-19.8%
Sep 2025
+6.0%
Jun 2025
-7.5%
Mar 2025
-11.4%
Dec 2024
+2.6%
Sep 2024
-13.1%
At each fiscal year end
Single quarter
Free cash flow, TTM
$122.7K
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM KOSS
FY Jun 2026
$122.7K
FY Jun 2025
-$705.6K
FY Jun 2024
-$652.3K
FY Jun 2023
$10.6M
FY Jun 2022
-$1.1M
Jun 2026
$1.0M
Mar 2026
-$586.3K
Dec 2025
-$1.1M
Sep 2025
$761.5K
Jun 2025
-$541.8K
Mar 2025
$306.2K
Dec 2024
-$314.3K
Sep 2024
-$155.6K
At each fiscal year end
Single quarter
Debt to equity
0.02x
current debt only, 2020-09-30 (69 months older than the period end); equity 2026-06-30
Debt to equity KOSS
FY Jun 2026
0.02x
FY Jun 2025
0.02x
FY Jun 2024
0.02x
FY Jun 2023
0.02x
FY Jun 2022
0.02x
Jun 2026
0.02x
Mar 2026
0.02x
Dec 2025
0.02x
Sep 2025
0.02x
Jun 2025
0.02x
Mar 2025
0.02x
Dec 2024
0.02x
Sep 2024
0.02x
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
0.87x
TTM operating cash flow over current debt only, 2020-09-30 (69 months older than the period end)
Cash flow to debt KOSS
FY Jun 2026
0.87x
FY Jun 2025
-0.42x
FY Jun 2024
-0.38x
FY Jun 2023
21.19x
FY Jun 2022
-1.86x
Jun 2026
0.87x
Mar 2026
-2.20x
Dec 2025
-0.32x
Sep 2025
0.68x
Jun 2025
-0.42x
Mar 2025
0.29x
Dec 2024
0.21x
Sep 2024
1.43x
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-1.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity KOSS
FY Jun 2026
-1.3%
FY Jun 2025
-2.8%
FY Jun 2024
-3.0%
FY Jun 2023
+30.3%
FY Jun 2022
+6.0%
Jun 2026
-1.3%
Mar 2026
-3.6%
Dec 2025
-2.8%
Sep 2025
-0.7%
Jun 2025
-2.8%
Mar 2025
-2.4%
Dec 2024
-2.4%
Sep 2024
-3.6%
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-1.1%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets KOSS
FY Jun 2026
-1.1%
FY Jun 2025
-2.4%
FY Jun 2024
-2.5%
FY Jun 2023
+24.1%
FY Jun 2022
+4.5%
Jun 2026
-1.1%
Mar 2026
-3.0%
Dec 2025
-2.3%
Sep 2025
-0.6%
Jun 2025
-2.4%
Mar 2025
-2.0%
Dec 2024
-2.0%
Sep 2024
-3.0%
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on invested capital KOSS
FY Jun 2026
n/a
FY Jun 2025
n/a
FY Jun 2024
n/a
FY Jun 2023
-110.1%
FY Jun 2022
+6.5%
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-4.3%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed KOSS
FY Jun 2026
-4.3%
FY Jun 2025
-4.9%
FY Jun 2024
-5.2%
FY Jun 2023
-77.1%
FY Jun 2022
+3.5%
Jun 2026
-4.3%
Mar 2026
-6.4%
Dec 2025
-5.7%
Sep 2025
-3.2%
Jun 2025
-4.9%
Mar 2025
-4.5%
Dec 2024
-4.7%
Sep 2024
-5.7%
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
P/E, trailing KOSS
FY Jun 2026
n/a
FY Jun 2025
n/a
FY Jun 2024
n/a
FY Jun 2023
4.40x
FY Jun 2022
53.46x
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
$29.7M
market value at close 2026-10-26 on 2026-08-24 shares, plus current debt only, 2020-09-30 (69 months older than the period end), minus cash 2026-06-30
Enterprise value KOSS
FY Jun 2026
$35.4M
FY Jun 2025
$45.5M
FY Jun 2024
$38.9M
FY Jun 2023
$31.5M
FY Jun 2022
$54.9M
Jun 2026
$35.4M
Mar 2026
$32.5M
Dec 2025
$37.2M
Sep 2025
$46.0M
Jun 2025
$45.5M
Mar 2025
$41.8M
Dec 2024
$67.0M
Sep 2024
$66.5M
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
+0.4%
TTM free cash flow over market value at close 2026-10-26
FCF yield KOSS
FY Jun 2026
+0.3%
FY Jun 2025
-1.5%
FY Jun 2024
-1.6%
FY Jun 2023
+31.2%
FY Jun 2022
-1.7%
Jun 2026
+0.3%
Mar 2026
-4.2%
Dec 2025
-1.4%
Sep 2025
+0.4%
Jun 2025
-1.5%
Mar 2025
-0.8%
Dec 2024
-0.5%
Sep 2024
+0.3%
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
PEG, trailing KOSS
FY Jun 2026
n/a
FY Jun 2025
n/a
FY Jun 2024
n/a
FY Jun 2023
0.01x
FY Jun 2022
0.46x
Jun 2026
n/a
Mar 2026
n/a
Dec 2025
n/a
Sep 2025
n/a
Jun 2025
n/a
Mar 2025
n/a
Dec 2024
n/a
Sep 2024
n/a
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
KOSS ranks highest on financial health (74th percentile) and growth (54th), and lowest on institutional and government (9th), among Consumer Goods peers.
Profitability
34
Inputs
Return on equity-1.3% · 38 pct, sector of 105
Return on assets-1.1% · 42 pct, sector of 124
Return on invested capitalpre-tax loss, no effective tax rate to apply
Return on capital employed-4.3% · 23 pct, sector of 108
Financial health
74
Inputs
Debt to equity0.02x · 78 pct, sector of 112
Cash flow to debt0.87x · 71 pct, sector of 96
Growth
54
Inputs
Revenue growth, YoY+3.1% · 54 pct, sector of 145
Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Institutional and government
9
Inputs
Funds adding, latest quarter6 · 9 pct, sector of 123
Congress net buyers, 365dno Congress trades in 365 days
Federal contracts, 180dno federal contracts in 180 days
Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
44
Inputs
Short interest, % of float+2.0% · 65 pct, sector of 157
Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
New text in Risk Factors, latest 10-K+21.6% · 23 pct, sector of 111
2 not measured: Insider conviction, US patents
Insider conviction needs 1 of 2 inputs, 0 present: no Form 4 purchase or sale (code P or S) in 180 days; no insider trades in 180 days
US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet
5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
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