WAVEMAN · COMPANY

KOSS · Koss Corp

LIVE

TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+2.87% 13F +1,323COIN-1.05% 13F +475

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KOSS

Name: KOSS CORP (KOSS) insider trading and ownership data
Creator: WaveMan
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KOSS CORP

SEMICONDUCTORS & ELECTRONICS · HOUSEHOLD AUDIO & VIDEO EQUIPMENT · CIK 0000056701

SEC FILINGS☆ WATCH

INSIDER NET · 180D

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

13F, latest reported quarter

REVENUE GROWTH

+2.9%

XBRL, annual

NET MARGIN

-6.9%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

no Form 4 purchases or sales on file

CONGRESS

no member of Congress has reported trading it

FUNDS

6 funds added or opened last quarter

below 95% of Semiconductors & Electronics

REVENUE

+2.9% year over year

below 61% of Semiconductors & Electronics

MARGIN

-6.9% net margin

below 58% of Semiconductors & Electronics

BUYBACKS

no share repurchases reported

SHORT

1.2% of shares outstanding short · 7.1 days to cover · settled 2026-07-31

below 79% of Semiconductors & Electronics

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN -43.8%

-43.8%12M

INSIDER BUY

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

The complete filing record, in one place.

The record shows 6 funds added last quarter. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

NVDA CRDO VICR MPWR VPLM ALAB PI MTSI MU AIP AVGO MSI

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

No insider purchases or sales are on record for KOSS CORP in the period covered. Source: SEC Form 4 filings, as of 2026-09-04.

INSIDER

FILED

VALUE

LILLIE LENORE

Director

BUY

2025-12-02

2,500.0

$12.4K

Koss Michael J Jr

VP - Marketing & Product

SELL

2025-06-13

24,643.0

$117.8K

KOSS JOHN C JR

Vice President - Sales

SELL

2025-06-12

1,500.0

$7.5K

Koss Michael J Jr

VP - Marketing & Product

SELL

2025-06-12

6,000.0

$29.5K

KOSS JOHN C JR

Vice President - Sales

SELL

2025-06-11

23,500.0

$132.8K

29 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 24 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

VANGUARD CAPITAL MANAGEMENT LLC

189,607.0 sh

$760.3K

BlackRock, Inc.

94,977.0 sh

$380.9K

GEODE CAPITAL MANAGEMENT, LLC

59,491.0 sh

$238.6K

CITADEL ADVISORS LLC

33,058.0 sh

$132.6K

VANGUARD FIDUCIARY TRUST CO

30,740.0 sh

$123.3K

SCHEDULE 13D/G

No 5%+ ownership filings

Nobody has crossed 5% with a filing obligation. Absence is a fact here, not missing data.

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

iShares Micro-Cap ETF

$49.9K POSITION · AS OF 2026-03-31

0.0%

Small Cap Core Fund

$11.1K POSITION · AS OF 2026-03-31

0.0%

1290 VT Micro Cap Portfolio

$3.8K POSITION · AS OF 2026-03-31

0.0%

Dimensional US Sustainability Core 1 ETF

$8.8K POSITION · AS OF 2026-04-30

0.0%

VANGUARD EXTENDED MARKET INDEX FUND

$241.5K POSITION · AS OF 2026-03-31

0.0%

Dimensional US Core Equity 1 ETF

$8.6K POSITION · AS OF 2026-04-30

0.0%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$382.6K

$487.1K

+8%

—

2024

$379.5K

$572.0K

$278.6K

+38%

—

2023

$383.8K

$424.8K

$288.1K

+20%

—

2022

$703.6K

$820.9K

$280.7K

-48%

—

2021

$416.7K

-$4.0M

$233.8K

-69%

—

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-06	2024-06	2023-06	2022-06
REVENUE	$12.6M	$12.3M	$13.1M	$17.7M
GROSS PROFIT	$4.8M	$4.2M	$4.5M	$6.7M
OPERATING INCOME	$-1.7M	$-1.9M	$-24.9M	$902.0K
NET INCOME	$-874.8K	$-950.9K	$8.3M	$1.3M
EPS (DILUTED)	-0.09	-0.10	0.85	0.13
OPERATING CASH FLOW	$-214.9K	$-190.5K	$10.7M	$-942.5K
CASH	$2.8M	$2.8M	$3.1M	$9.2M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-04 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE