// company-profile
Koss Corp
KOSSExchangeNasdaqSectorHousehold Audio & Video EquipmentInc.DEFilings9Insiders5
// api This Koss Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Koss Corp insiders bought $0 across 2 transactions with no open-market sales.
- Most active insider: Koss Michael J Jr with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Koss Corp as of 2026-03-31
Total reported AUM
$1.6M
QoQ change
-0.3%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$678,793
190K shares
#2
BlackRock, Inc.
CIK 2012383
$267,465
75K shares
#3
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
$153,355
43K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 6, 2026 | Koss Michael J Jr | KOSS | Award | 100,000 | $0.00 | $0K |
| May 6, 2026 | Schulte Kim M. | KOSS | Award | 50,000 | $0.00 | $0K |
| Feb 17, 2026 | KOSS MICHAEL J | KOSS | J | 12,000 | $0.00 | $0K |
| Dec 2, 2025 | LILLIE LENORE | KOSS | Purchase | 2,500 | $4.96 | $12K |
| Jun 13, 2025 | Koss Michael J Jr | KOSS | Sale | 24,643 | $4.78 | $118K |
21 more transactions hidden
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