KOSS · Koss Corp · Holdings
Market Cap
$32.28M
Shares
9.47M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 23
Total Value: $2,000,955
Total Shares: 498,994
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 23 13F filers · Δ vs Mar 31, 2026Top Holder
38.0%
−1.4 pts
Top 5
81.7%
+1.1 pts
Top 10
98.5%
+2.4 pts
HHI
2,091
Moderately concentrated−60
Quarterly Activity
vs Mar 31, 2026
New
3
Increased
3
Decreased
5
Sold Out
3
Unchanged
12
Holder count:
0
Institutional value:
+16.2%
Shares held:
+3.7%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega BlackRock, Inc. | +5,376 | 94,977 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +3,578 | 59,491 | |
| Mega DIMENSIONAL FUND ADVISORS LP | +2,822 | 24,433 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega NORTHERN TRUST CORP | −3,998 | 10,287 | |
| Mega UBS Group AG | −3,952 | 2,161 | |
| Mega VANGUARD FIDUCIARY TRUST CO | −594 | 30,740 | |
| Mid Tower Research Capital LLC (TRC) | −540 | 672 | |
| Mid Parallel Advisors, LLC | −1 | 9 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | 33,058 | $132,562 | |
| Mega BARCLAYS PLC | 23 | $92 | |
| Small Caitong International Asset Management Co., Ltd | 2 | $8 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid XTX Topco Ltd | 10,786 | $38,613 | |
| Mega PNC FINANCIAL SERVICES GROUP, INC. | 7,000 | $25,060 | |
| Mega CITIGROUP INC | 1 | $3 |