Key facts
- This page summarizes John C. Koss Jr.'s Form 4 filing for KOSS CORP (KOSS).
- 9 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 17 Jun 2025, 17:12.
John C. Koss Jr. - 10 Jun 2025 Form 4 Insider Report for KOSS CORP (KOSS)
- Reporting relationship
- Vice President - Sales
- Issuer ticker
- KOSS
- Reported as of
- 10 Jun 2025
- Net transaction value
- -$190,305
- SEC form
- 4
- Accepted by SEC
- 17 Jun 2025, 17:12:04 UTC
- Prior SEC filing
- 16 Dec 2024
- Source filing
- View source filing
- Reporting owner signature
- /s/ Kim M. Schulte, as attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
John C. Koss Jr. filed Form 4 for KOSS CORP (KOSS) on 17 Jun 2025.
Change
- Previous filing in this sequence was filed on 16 Dec 2024.
- Current net transaction value: -$190,305.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001217521
Primary reporting owner
KOSS JOHN C JR
- Relationship
- Vice President - Sales
- Address
- C/O KOSS CORPORATION, 4129 N. PORT WASHINGTON AVE., MILWAUKEE
- Signature
- /s/ Kim M. Schulte, as attorney-in-fact
- Signature date
- 17 Jun 2025
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
KOSS
transaction
Common Stock
Options Exercise
- Transaction value
- $47,500
- Shares
- +25,000
- Change %
- +13%
- Price
- $1.90
- Shares after
- 221,028
- Date
- 10 Jun 2025
- Ownership
- Direct
KOSS
transaction
Common Stock
Sale
- Transaction value
- $145,000
- Shares
- -25,000
- Change %
- -11%
- Price
- $5.80
- Shares after
- 196,028
- Date
- 10 Jun 2025
- Ownership
- Direct
KOSS
transaction
Common Stock
Options Exercise
- Transaction value
- $44,650
- Shares
- +23,500
- Change %
- +12%
- Price
- $1.90
- Shares after
- 219,528
- Date
- 11 Jun 2025
- Ownership
- Direct
KOSS
transaction
Common Stock
Sale
- Transaction value
- $132,775
- Shares
- -23,500
- Change %
- -11%
- Price
- $5.65
- Shares after
- 196,028
- Date
- 11 Jun 2025
- Ownership
- Direct
- Footnotes
- F1
KOSS
transaction
Common Stock
Options Exercise
- Transaction value
- $2,850
- Shares
- +1,500
- Change %
- +0.77%
- Price
- $1.90
- Shares after
- 197,528
- Date
- 12 Jun 2025
- Ownership
- Direct
KOSS
transaction
Common Stock
Sale
- Transaction value
- $7,530
- Shares
- -1,500
- Change %
- -0.76%
- Price
- $5.02
- Shares after
- 196,028
- Date
- 12 Jun 2025
- Ownership
- Direct
KOSS
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 74,148
- Date
- 10 Jun 2025
- Ownership
- ESOP
KOSS
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 539,326
- Date
- 10 Jun 2025
- Ownership
- By family trusts
- Footnotes
- F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
KOSS
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- $0
- Shares
- -25,000
- Change %
- -50%
- Price
- $0.000000
- Shares after
- 25,000
- Date
- 10 Jun 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,000
- Exercise price
- $1.90
- Footnotes
- F3
KOSS
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- $0
- Shares
- -23,500
- Change %
- -94%
- Price
- $0.000000
- Shares after
- 1,500
- Date
- 11 Jun 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 23,500
- Exercise price
- $1.90
- Footnotes
- F3
KOSS
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- $0
- Shares
- -1,500
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Jun 2025
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,500
- Exercise price
- $1.90
- Footnotes
- F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.73, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Footnote F2
Number of shares represents the proportional interest in shares subject to Restatement of the Koss Family Voting Trust Agreement, dated March 23, 2022, of two trusts for the benefit of descendants of the reporting person for which the reporting person serves as trustee. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
Footnote F3
These Stock Options vest in four equal annual installments beginning on July 22, 2021.