Koss Ownership | Who Owns Koss?
Koss Ownership Summary
Koss is owned by 4.33% institutional investors, 43.53% insiders, and 52.14% retail investors. Vanguard group is the largest institutional shareholder, holding 2.36% of KOSS shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 1.61% of its assets in Koss shares.
KOSS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Koss | 4.33% | 43.53% | 52.14% |
| Sector | Technology Stocks | 36.93% | 14.89% | 48.18% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 222.99K | 2.36% | $923.18K |
| Blackrock funding, inc. /de | 89.60K | 0.95% | $320.77K |
| Geode capital management | 55.91K | 0.59% | $200.20K |
| Blackrock | 52.06K | 0.56% | $231.68K |
| Vanguard fiduciary trust | 31.33K | 0.33% | $112.18K |
| Dimensional fund advisors lp | 21.61K | 0.23% | $77.37K |
| State street | 17.97K | 0.19% | $64.35K |
| James investment research | 15.47K | 0.16% | $55.40K |
| Northern trust | 14.29K | 0.15% | $51.14K |
| Susquehanna group, llp | 13.92K | 0.15% | $102.72K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| James investment research | 15.47K | 0.01% | $55.40K |
| Xtx topco | 10.79K | 0.00% | $38.61K |
| Activest wealth management | 1.00K | 0.00% | $3.58K |
| N.e.w. advisory services | 1.00K | 0.00% | $3.58K |
| Newedge advisors | 10.57K | 0.00% | $53.72K |
| Tower research capital llc (trc) | 1.21K | 0.00% | $4.34K |
| Two sigma investments, lp | 13.36K | 0.00% | $67.84K |
| Creative financial designs inc /adv | 300.00 | 0.00% | $1.07K |
| Blackrock | 52.06K | - | $231.68K |
| Marshall wace, llp | - | - | - |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard fiduciary trust | 31.33K | - | 31.33K |
| Susquehanna group, llp | 13.92K | - | 13.92K |
| Two sigma investments, lp | 13.36K | 0.00% | 13.36K |
| James investment research | 15.47K | 0.01% | 4.90K |
| Vanguard global advisers | 2.04K | - | 2.04K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Lido advisors | - | - | -2.89M |
| Marshall wace, llp | - | - | -60.58K |
| Vanguard group | 222.99K | - | -22.72K |
| Renaissance | - | - | -22.66K |
| Goldman sachs group | - | - | -17.01K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 31.33K | - | 31.33K | $112.18K |
| Susquehanna group, llp | 13.92K | - | 13.92K | $102.72K |
| Two sigma investments, lp | 13.36K | 0.00% | 13.36K | $67.84K |
| Vanguard global advisers | 2.04K | - | 2.04K | $7.30K |
| Parallel advisors | 10.00 | - | 10.00 | $36.00 |
Sold Out
| Holder | Change |
|---|---|
| Nelson, van denburg & campbell wealth management group | -7.00 |
| Guardian wealth management | -7.00 |
| Fmr | -10.00 |
| Jpmorgan chase | -11.00 |
| Northwestern mutual wealth management | -19.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 20 | -9.09% | 409,539 | -15.96% | 4 | 16.32% | 8 | 14.29% | 3 | -25.00% |
| Dec 31, 2025 | 8 | -65.22% | 243,792 | -55.02% | 2 | 7.74% | 2 | -77.78% | 2 | -66.67% |
| Sep 30, 2025 | 6 | -70.00% | 265,383 | -92.13% | 2 | 0.22% | 1 | -87.50% | 2 | - |
| Jun 30, 2025 | 20 | -9.09% | 3,373,068 | 0.56% | 35 | 2.81% | 8 | -20.00% | 2 | -33.33% |
| Mar 31, 2025 | 22 | -24.14% | 3,354,188 | 470.19% | 35 | 90.49% | 10 | -37.50% | 3 | 50.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 150.70K | 1.61% | - |
| Vanguard Total Stock Mkt Idx Inv | 122.14K | 1.29% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 67.46K | 0.71% | - |
| Blackrock Extended Mkt Fund CF | 23.44K | 0.25% | - |
| Extended Equity Market Fund B | 23.44K | 0.25% | - |
| Extended Equity Market Fund E | 23.44K | 0.25% | - |
| Fidelity Extended Market Index | 21.90K | 0.23% | -7.00K |
| Extended Equity Market Fund K | 19.96K | 0.21% | -146.00 |
| BlackRock Extended Equity Market Fund K | 19.96K | 0.21% | -146.00 |
| iShares Micro-Cap ETF | 14.02K | 0.15% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Dec 02, 2025 | LILLIE LENORE | - | Buy | $12.40K |
| Jun 12, 2025 | KOSS JOHN C JR | Vice President - Sales | Sell | $7.53K |
| Jun 10, 2025 | KOSS JOHN C JR | Vice President - Sales | Sell | $145.00K |
| Jun 11, 2025 | KOSS JOHN C JR | Vice President - Sales | Sell | $132.78K |
| Jun 12, 2025 | Koss Michael J Jr | VP - Marketing & Product | Sell | $29.46K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | - |
| 2026 Q1 | - | - |
| 2025 Q4 | 1 | - |
| 2025 Q2 | - | 5 |
| 2024 Q4 | - | 1 |
KOSS Ownership FAQ
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