Security key
500692108
- Security type / class
- Equity / COM
- Total 13F shares
- 1,171,357
- Total 13F value
- $12,508,491
- Share change
- +634,345
- SEC-reported price per share
- $10.68
- Number of holders
- 21
- Value change
- +$6,600,715
- Number of buys
- 13
- Number of sells
- 12
Report period
Q4 2021
Institutions
21
Top holders
10
KOSS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2022
Previous quarter: Q3 2021
KOSS CORP SEC filings
KOSS CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 500692108
Recent filing periods:
Ownership snapshot
Top reported holders of KOSS - KOSS CORP - COM (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD GROUP INC
Disclosed value leader
VANGUARD GROUP INC
Comparable rows
0/15
Latest evidence
30 Sep 2021
13F
Highest disclosed value: $2,699,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD GROUP INC has the largest disclosed position value at $2.7M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD GROUP INC's linked filing trail.
Disclosed position value
Top 5
VANGUARD GROUP INC
$2.7M
DIMENSIONAL FUND ADVISORS LP
$2.4M
BlackRock Finance, Inc.
$913K
JANE STREET GROUP, LLC
$688K
GEODE CAPITAL MANAGEMENT, LLC
$638K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC |
13F
Company
|
—
class O/S missing
|
$2,699,000
165,090 shares
|
— | 30 Sep 2021 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
class O/S missing
|
$2,397,000
146,611 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
—
class O/S missing
|
$913,000
55,836 shares
|
— | 30 Sep 2021 |
| JANE STREET GROUP, LLC |
13F
Company
|
—
class O/S missing
|
$688,000
42,108 shares
|
— | 30 Sep 2021 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
class O/S missing
|
$638,000
39,032 shares
|
— | 30 Sep 2021 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$268,000
16,414 shares
|
— | 30 Sep 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
21
Shares
1,171,357
Rows available
21
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
21
Q4 2021 holders
21
Holder diff
0
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend