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Koss Corp Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest was filed 04 Dec 2025.
Koss Corp: what insiders have been doing
Koss Corp, classified in the Retail & Commerce sector, is a listed company based in Milwaukee, United States, founded in 1953. Its insiders report their share dealings to SEC (Form 4). Over the twelve months to 18 October 2026, 2 filings were filed, from 2 insiders.
No insider sold shares on the market over the period. Instead, the filings list 1 purchase totalling €11k, made by 1 insider. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. On the buying side, the filings list 1 senior executive among the declarants. The largest single trade was a purchase of €11k by Lillie Lenore, published on 4 December 2025.
For context, the typical company on the same exchange (median of 5,458 companies) published 22 filings over the same period, against 2 filings here. Our records for Koss Corp go back to 2021, with 3 purchases and 7 sales on the open market in total.
The clock since the last published purchase (4 December 2025) now reads 318 days.
Elsewhere in the same sector, our signals recently picked up insider purchases at GameStop Corp. and Dick's Sporting Goods, Inc. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Insider Decl.
36
Thresholds
n/a
Buy Volume
€142,068
3 ops. · all time
Sell Volume
€1M
7 ops. · all time
Who traded when
BuySaleLenore Lillie1 buy
Since the insiders bought
- -15.6%Entry US$4.82 · Close at T+90 US$4.07
- -48.4%Entry US$7.37 · Close at T+365 US$3.80
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 19,792 of 24,148 companies
29.3
score / 100
Value27
Quality32
FCF yld-2.0%
Earn yld-2.5%
EV/EBITDA·
ROE-3.6%
Gross mgn38%
Net mgn-6.9%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended June 2025 · cache
US$3.68
Analyst consensus
Income statement
RevenueUS$12.6M
Gross profitUS$4.8M38% margin
EBITDA-US$1.5M-12% margin
Net income-US$874.8k-8.6% margin
Valuation
P/Book1.2x
Beta1.67
Balance sheet & cash
Market capUS$34.8M
Total debtUS$2.5M
Free Cash Flow-US$705.6k
Debt / Equity8%
Profitability & ownership
ROE-3.6%
ROA-5.1%
% insiders43.5%
% institutions5.2%
Last declaration on 17 February 2026
Declarations36 total
12,000 shares0Common StockSEC:0001193125-26-054822:0
2,500 shares@ US$4.96100.0% of flowCommon StockSEC:0001193125-25-308136:0
Canonical exit: 2 Mar 2026 (T+90)
6,000 shares@ US$1.90100.0% of flowCommon StockSEC:0000950170-25-087503:0
25,000 shares@ US$1.90100.0% of flowCommon StockSEC:0000950170-25-087506:0
25,000 shares@ US$1.906.2% of flowCommon StockSEC:0000950170-24-136638:0
15,000 shares0Common StockSEC:0000950170-24-067352:0
25,000 shares@ US$2.176.9% of flowCommon StockSEC:0000950170-24-063035:0
1,000,885 shares0Common StockSEC:0001209191-22-039940:0
1,000,885 shares0Common StockSEC:0001209191-22-033950:0
1,000,885 shares0Common StockSEC:0001209191-22-033947:0
2,847 shares@ US$7.3014.7% of flowCommon StockSEC:0001209191-22-033952:0
Canonical exit: 31 Aug 2022 (T+90)
17,153 shares@ US$6.9685.3% of flowCommon StockSEC:0001209191-22-033552:0
Canonical exit: 30 Aug 2022 (T+90)
10,000 shares@ US$2.637.7% of flowCommon StockSEC:0001209191-21-062469:0
15,000 shares@ US$2.926.2% of flowCommon StockSEC:0001209191-21-056612:0
8,500 shares@ US$1.955.9% of flowCommon StockSEC:0001209191-21-054751:0
10,000 shares@ US$1.902.2% of flowCommon StockSEC:0001209191-21-054416:0
9,220 shares@ US$1.956.3% of flowCommon StockSEC:0001209191-21-054415:0
4,600 shares@ US$1.953.2% of flowCommon StockSEC:0001209191-21-054059:0
10,000 shares@ US$1.902.2% of flowCommon StockSEC:0001209191-21-054060:0
25,000 shares@ US$1.955.7% of flowCommon StockSEC:0001209191-21-053529:0
16,500 shares@ US$1.9511.4% of flowCommon StockSEC:0001209191-21-053528:0
15,000 shares@ US$1.954.2% of flowCommon StockSEC:0001209191-21-053533:0
10,000 shares@ US$1.975.7% of flowCommon StockSEC:0001209191-21-053532:0
50,000 shares@ US$6.0086.5% of flowCommon StockSEC:0001209191-21-044855:0
25 of 36 declarations
About Koss Corp
Koss Corp. (ticker: KOSS) is a U.S.-listed company traded on the NASDAQ, placing it in the small-cap consumer audio space rather than the NYSE. The company was founded in 1958 in Milwaukee, Wisconsin, where it remains headquartered today. Its origin story is closely tied to the launch of the first Koss SP/3 stereophone, a product that helped establish the brand as an early pioneer in personal high-fidelity listening. That long operating history is still central to the company’s equity story and brand identity. ([investors.koss.com](https://investors.koss.com/?utm_source=openai))
Koss’ core business is the design, marketing, and distribution of audio products. Its portfolio includes wired and wireless headphones, earbuds, Bluetooth headphones, wireless speakers, computer headsets, telecommunications headsets, and active noise-canceling models. The company also markets a niche catalog of audiophile recordings under the Koss Classics label. In practical terms, Koss is a specialized audio consumer brand, with its offering concentrated around personal listening devices rather than broader consumer electronics. ([investors.koss.com](https://investors.koss.com/?utm_source=openai))
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From a competitive standpoint, Koss operates in a highly fragmented and intensely contested market dominated by larger global brands with greater scale, distribution reach, and marketing budgets. Koss differentiates itself through brand heritage, product design, and a focused portfolio that still includes iconic models such as the Porta Pro family. Management has also continued to refresh the lineup with wireless Bluetooth variants and product updates aimed at modern listening habits, which is important in a category where consumer expectations shift quickly toward wireless convenience, portability, and value. ([investors.koss.com](https://investors.koss.com/press-releases?utm_source=openai))
Geographically, the company is still primarily anchored in the United States, both operationally and commercially, although its supply chain and sales channels are exposed to global sourcing and international market dynamics. Recent filings and company updates highlight recurring operating pressures from competition, supply-chain constraints, trade and tariff uncertainty, and demand fluctuations. In fiscal 2025, Koss noted weaker orders from domestic distributors, partly affected by excess inventory of non-Koss products, alongside softer e-tailer sales, even as some growth was supported by product mix improvements and higher-margin direct-to-consumer activity. For investors, Koss remains a niche audio brand with a durable legacy, but one that must continuously defend share in a fast-moving and price-competitive market. ([sec.gov](https://www.sec.gov/Archives/edgar/data/0000056701/000005670125000044/koss-20250630x10k.htm?utm_source=openai))
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