Koss Ownership | Who Owns Koss?


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Koss Ownership Summary


Koss is owned by 2.83% institutional investors, 43.57% insiders, and 53.60% retail investors. Vanguard group is the largest institutional shareholder, holding 2.62% 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


TypeName% Inst% Insiders% Retail
StockKoss2.83%43.57%53.60%
SectorTechnology Stocks 50.72%12.57%36.71%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group245.71K2.62%$1.25M
Blackrock funding, inc. /de87.85K0.94%$446.29K
Geode capital management58.44K0.62%$296.92K
Blackrock52.06K0.56%$231.68K
Dimensional fund advisors lp23.34K0.25%$118.58K
State street17.97K0.19%$91.31K
Goldman sachs group17.01K0.18%$86.39K
Northern trust14.42K0.15%$73.26K
Susquehanna group, llp13.92K0.15%$102.72K
Ubs group13.61K0.14%$69.12K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
James investment research10.57K0.01%$53.72K
Activest wealth management1.00K0.00%$5.08K
Newedge advisors10.57K0.00%$53.72K
Creative financial designs inc /adv300.000.00%$1.52K
Tower research capital llc (trc)673.000.00%$3.42K
Two sigma investments, lp13.36K0.00%$67.84K
Nelson, van denburg & campbell wealth management group---
Guardian wealth management---
Renaissance---
Lido advisors---

Top Buyers

HolderShares% AssetsChange
Goldman sachs group17.01K-17.01K
Susquehanna group, llp13.92K-13.92K
Two sigma investments, lp13.36K0.00%13.36K
Dimensional fund advisors lp23.34K-12.66K
Ubs group13.61K-5.86K

Top Sellers

HolderShares% AssetsChange
Lido advisors---2.89M
Marshall wace, llp---60.58K
Renaissance---22.66K
Jane street group---16.98K
Citadel advisors---14.62K

New Positions

HolderShares% AssetsChangeValue
Goldman sachs group17.01K-17.01K$86.39K
Susquehanna group, llp13.92K-13.92K$102.72K
Two sigma investments, lp13.36K0.00%13.36K$67.84K
Tower research capital llc (trc)673.000.00%673.00$3.42K

Sold Out

HolderChange
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


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 20256-70.00%265,383-92.13%20.22%1-87.50%2-
Jun 30, 202520-9.09%3,373,0680.56%352.81%8-20.00%2-33.33%
Mar 31, 202522-24.14%3,354,188470.19%3590.49%10-37.50%350.00%
Dec 31, 20242931.82%588,25738.02%630.00%1677.78%2-60.00%
Sep 30, 2024224.76%426,211-27.27%411.42%9-525.00%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard US Total Market Shares ETF150.70K1.61%-
Vanguard Total Stock Mkt Idx Inv143.14K1.53%-3.13K
Vanguard Institutional Extnd Mkt Idx Tr67.46K0.72%-30.74K
Fidelity Extended Market Index28.30K0.30%-232.00
Extended Equity Market Fund K19.82K0.21%-396.00
iShares Micro-Cap ETF11.63K0.12%-
Fidelity Total Market Index11.49K0.12%-24.00
Fidelity Series Total Market Index7.41K0.08%-
EA Bridgeway Omni Small-Cap Value ETF6.32K0.07%-
Spartan Extended Market Index Pool F5.88K0.06%232.00

Recent Insider Transactions


DateNameRoleActivityValue
Dec 02, 2025LILLIE LENORE-Buy$12.40K
Jun 12, 2025KOSS JOHN C JR Vice President - SalesSell$7.53K
Jun 10, 2025KOSS JOHN C JR Vice President - SalesSell$145.00K
Jun 11, 2025KOSS JOHN C JR Vice President - SalesSell$132.78K
Jun 12, 2025Koss Michael J Jr VP - Marketing & ProductSell$29.46K

Insider Transactions Trends


DateBuySell
2025 Q41-
2025 Q2-5
2024 Q4-1
2024 Q2-1
2022 Q4--

KOSS Ownership FAQ


Who owns the most shares of Koss?

Koss’s largest shareholders are Vanguard group (245.71K shares, 2.62%), Blackrock funding, inc. /de (87.85K shares, 0.94%), and Geode capital management (58.44K shares, 0.62%). Together, they hold 4.17% of Koss’s total shares outstanding.

Does Blackrock own Koss?

Yes, BlackRock owns 0.56% of Koss, totaling 52.06K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 231.68K$. In the last quarter, BlackRock decreased its holdings by -9.828K shares, a -15.88% change.

Who is Koss’s biggest shareholder by percentage of total assets invested?

James investment research is Koss’s biggest shareholder by percentage of total assets invested, with 0.01% of its assets in 10.58K Koss shares, valued at 53.72K$.

Who is the top mutual fund holder of Koss shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Koss shares, with 1.61% of its total shares outstanding invested in 150.7K Koss shares.

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