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KOSS KOSS CORP

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COM (common), issuer CIK 56701

21 managers (23 13F filers) reported a position in KOSS shares at 2026-03-31, 481,007 shares in all. 2 filers opened a position and 3 filers sold out during the quarter.

Managers
21
13F filers
23
New
2
Added
4
Reduced
5
Sold out
3
Shares held by filers
481,007

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 3 filers holding222,981$798KnewTimeline
BlackRock, Inc.in group BlackRock, Inc.89,601$321K<0.01%+1,19613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC55,913$200K<0.01%-4,42913F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP21,611$77.4K<0.01%-1,73113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP17,974$64.3K<0.01%013F-HRTimelineGroup
JAMES INVESTMENT RESEARCH, INC.15,475$55.4K0.01%+4,90013F-HRTimeline
NewEdge Advisors, LLC15,475$55.4K<0.01%+4,90013F-HR/ATimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP14,285$51.1K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd10,786$38.6K<0.01%-1,39913F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…7,000$25.1K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG6,113$21.9K<0.01%-1,93913F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,212$4.34K<0.01%+42913F-HRTimelineGroup
N.E.W. Advisory Services LLC1,000$3.58K<0.01%013F-HRTimeline
Activest Wealth Management1,000$3.58K<0.01%013F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV300$1.07K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.120$430<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY80$286<0.01%-3,00013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.50$179<0.01%013F-HRTimelineGroup
Crewe Advisors LLC20$72<0.01%013F-HRTimeline
Parallel Advisors, LLC10$36<0.01%new13F-HR/ATimeline
CITIGROUP INCin group CITIGROUP INC1$4<0.01%new13F-HRTimelineGroup