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JK

John C. JR Koss

KOSS
VICE PRESIDENT - SALES · KOSS CORP · CIK 0001217521
FILING MIX · LIFETIME19%/81%
BUYS
16
SELLS
70
TOTAL VALUE
$25.23M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
197,528
AVG SELL PX
$29.60
TRADE KIND
SHOWING 86 / 86
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
41 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by John C. JR Koss, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d41+85.37%-18.26%+1.35%-19.61%-12.68%-6.17
14d41+82.93%-25.45%+1.55%-27.01%-23.24%-6.50
30d41+95.12%-27.42%+1.79%-29.21%-30.13%-9.80
60d41+87.80%-21.41%+5.29%-26.70%-39.85%-6.96
90d41+90.24%-24.30%+7.95%-32.24%-29.69%-8.59
180d41+97.56%-39.53%+11.38%-50.91%-55.09%-16.80
1y41+97.56%-63.58%+9.07%-72.65%-73.90%-20.89
2y41(4 pending)+100.00%-81.16%+7.88%-89.05%-90.81%-80.32
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
KOSS · 197,528 shares · as of Jun 12, 2025
0208,237416,475624,712832,94920212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
FLOW · 16 buys / 70 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KOSS
KOSS CORP
SALE
Vice President - Sales
1,500——0Jun 12, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
1,500$5.02$7.5K196,028Jun 12, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
1,500$1.90$2.9K197,528Jun 12, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
23,500$5.65$132.8K196,028Jun 11, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
23,500$1.90$44.6K219,528Jun 11, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
23,500——1,500Jun 11, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$1.90$47.5K221,028Jun 10, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$5.80$145.0K196,028Jun 10, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——25,000Jun 10, 2025Jun 17, 2025 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——50,000Dec 12, 2024Dec 16, 2024 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$7.39$184.7K196,028Dec 12, 2024Dec 16, 2024 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$1.90$47.5K221,028Dec 12, 2024Dec 16, 2024 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$5.25$131.3K196,028May 20, 2024May 21, 2024 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$2.17$54.3K221,028May 20, 2024May 21, 2024 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——25,000May 20, 2024May 21, 2024 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
983,800——0Mar 23, 2022Jun 3, 2022 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
707,949——0Mar 23, 2022Jun 3, 2022 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
1,000,885——0Mar 23, 2022Jun 3, 2022 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000——75,000Aug 31, 2021Sep 2, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
10,000$1.90$19.0K161,028Aug 31, 2021Sep 2, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$18.38$183.8K151,028Aug 31, 2021Sep 2, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$18.26$91.3K151,028Aug 30, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000——85,000Aug 30, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
5,000$1.90$9.5K156,028Aug 30, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
10,000$1.90$19.0K161,028Aug 27, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$18.06$180.6K151,028Aug 27, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000——90,000Aug 27, 2021Aug 31, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——25,000Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——50,000Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$1.95$48.8K176,028Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$2.92$73.0K201,028Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——0Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$20.06$501.5K151,028Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
13,737$18.27$251.0K176,028Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
36,263$17.40$631.0K189,765Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$2.17$54.3K226,028Aug 24, 2021Aug 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$24.22$121.1K151,028Jun 15, 2021Jun 16, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
3,000$25.20$75.6K156,028Jun 14, 2021Jun 16, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$27.00$135.0K159,028Jun 9, 2021Jun 10, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
8,133$30.00$244.0K164,028Jun 8, 2021Jun 10, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$30.00$150.0K182,161Jun 3, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$35.36$176.8K172,161Jun 3, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$31.35$156.8K187,161Jun 3, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$32.50$162.5K177,161Jun 3, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$28.00$140.0K192,161Jun 2, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$25.00$125.0K197,161Jun 1, 2021Jun 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$23.50$235.0K202,161May 28, 2021Jun 1, 2021 ↗View →
KOSS
KOSS CORP
SALEGRANT
Gift
5,000——212,161Mar 11, 2021Mar 12, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$27.95$279.5K226,161Mar 10, 2021Mar 12, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
4,000$36.72$146.9K217,161Mar 10, 2021Mar 12, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$30.00$150.0K221,161Mar 10, 2021Mar 12, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$25.22$252.2K236,161Mar 10, 2021Mar 12, 2021 ↗View →
KOSS
KOSS CORP
SALEGRANT
Gift
10,000——246,161Feb 26, 2021Feb 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
40,000$27.06$1.08M707,949Feb 25, 2021Feb 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$23.51$235.1K747,949Feb 25, 2021Feb 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$30.13$301.3K256,161Feb 25, 2021Feb 26, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$24.00$120.0K266,161Feb 4, 2021Feb 5, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$25.44$254.4K271,161Feb 3, 2021Feb 5, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
30,000$19.84$595.2K757,949Feb 2, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,133$18.07$92.8K281,161Feb 2, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
35,000$23.56$824.6K286,294Feb 2, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
5,000$44.00$220.0K827,949Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$48.26$1.21M832,949Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
20,000$35.01$700.2K787,949Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
20,000$41.81$836.2K807,949Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
96,250$42.24$4.07M497,777Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
47,033$39.13$1.84M415,461Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
25,000$2.17$54.3K606,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
100,000$2.42$242.0K456,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
50,000$2.92$146.0K581,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
75,000——25,000Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
16,000$38.26$612.2K399,461Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
43,167$36.63$1.58M356,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$34.04$340.4K321,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000$35.06$876.5K331,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
10,000$55.18$551.8K17,779Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
50,000——50,000Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
100,000——0Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
12,267$45.62$559.6K594,027Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
PURCHASE
Vice President - Sales
75,000$1.95$146.3K531,294Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
25,000——75,000Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
35,283$41.11$1.45M462,494Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
17,779$49.47$879.5K0Feb 1, 2021Feb 3, 2021 ↗View →
KOSS
KOSS CORP
PURCHASEGRANT
Stock grant
100,000——100,000Jul 22, 2020Jul 23, 2020 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
8,000——0Jan 23, 2020Feb 3, 2021 ↗View →
KOSS
KOSS CORP
SALE
Vice President - Sales
24,000——8,000Jan 13, 2020Feb 3, 2021 ↗View →
Other insiders · KOSS
Loading peer insiders…
About this filer
CIK 0001217521
ROLE
Vice President - Sales
PRIMARY
KOSS
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001217521DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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The morning brief, before the bell.

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