Koss Corp: which funds bought and sold
Institutions that bought and sold Koss shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 6 institutions that filed 13F reports for both quarters added to or opened positions in Koss, and 8 cut or closed them. Together they added a net 18K shares, +3.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 33K shares; index fund managers were net buyers of 4,362 shares (+1.1%). 3 opened a new position and 3 sold out entirely.
Bought, Q2 2026 6 institutions, 3 of them new holders Sold, Q2 2026 8 institutions, 3 of them sold out
Net change, all compared +18K shares (+3.7%)
Net change, active managers +33K shares (—), 1 bought, 0 sold
Buyers versus sellers
6 bought 12 8 sold
Active managers and hedge funds 1 bought · 0 sold · +33K
Index fund managers 2 bought · 2 sold · +4,362
Other institutions 3 bought · 6 sold · −19K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | +33K New position | 33K | $132,563 |
| Blackrock, Inc. Index funds | +5,376 +6.0% | 95K | $380,858 |
| Geode Capital Management, LLC Index funds | +3,578 +6.4% | 59K | $238,599 |
| Dimensional Fund Advisors LP | +2,822 +13.1% | 24K | $97,976 |
| Barclays PLC | +23 New position | 23 | $92 |
| Caitong International Asset Management Co., Ltd | +2 New position | 2 | $8 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | +33K New position | 33K | $132,563 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Xtx Topco Ltd | −11K Sold out | 0 | — |
| PNC Financial Services Group, Inc. | −7,000 Sold out | 0 | — |
| Northern Trust Corp Index funds | −3,998 −28.0% | 10K | $41,251 |
| UBS Group AG | −3,952 −64.6% | 2,161 | $8,666 |
| Vanguard Fiduciary Trust Co Index funds | −594 −1.9% | 31K | $123,267 |
| Tower Research Capital LLC (TRC) | −540 −44.6% | 672 | $2,695 |
| Citigroup Inc | −1 Sold out | 0 | — |
| Parallel Advisors, LLC | −1 −10.0% | 9 | $36 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| None of the active managers on our list. | |||
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Citadel Advisors LLCHedge fund | 33K | $132,563 |
| Barclays PLC | 23 | $92 |
| Caitong International Asset Management Co., Ltd | 2 | $8 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Xtx Topco Ltd | 11K | $38,614 |
| PNC Financial Services Group, Inc. | 7,000 | $25,060 |
| Citigroup Inc | 1 | $4 |
Who holds the shares
- Institutions reporting
- 23
- Ten largest holders
- 98.5% of 13F-reported shares
- Index fund managers
- 80.8% of 13F-reported shares
- Active managers and hedge funds
- 6.6% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 1 | 0 | 1 | 0 | +33K | — |
| Index fund managers | 2 | 2 | 0 | 0 | +4,362 | +1.1% |
| Other institutions | 3 | 6 | 2 | 3 | −19K | −23.6% |