Thomas L. Doerr
CIK 1541350 · View on SEC EDGAR ↗
Insider
First SEC filing: May 14, 2018 · Latest: May 14, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 6 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
6 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 18, 2021 | KOSS | S | 3,333 | $18.83 | $62,760 | 0 Direct | -100.00% | Disposed | -80.9% (price as of 2026-08-19) |
| Feb. 1, 2021 | KOSS | S | 6,667 | $42.02 | $280,147 | 0 Direct | -100.00% | Disposed | -91.4% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 18, 2021 | KOSS | Stock Option (Right to Buy) | Common Stock (3,333) | $1.92 | May 9, 2023 | 3,333 | Disposed |
| Feb. 1, 2021 | KOSS | Stock Option (Right to Buy) | Common Stock (6,667) | $1.92 | May 9, 2023 | 6,667 | Disposed |
| May 9, 2018 | KOSS | Common Stock | Stock Option (right to buy) (10,000) | $1.92 | May 9, 2023 | 10,000 | Acquired |
| Feb. 1, 2012 | KOSS | Stock Option (right to buy) | Common Stock (10,000) | $5.59 | Feb. 1, 2017 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 3, 2012 | KOSS | No securities owned | 0 | Direct |