Insider trading

Period: 120 months Stock: KOSS + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

89 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

89 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

89 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

89 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
89 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
89 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

89 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
2 Dec 2025
LILLIE LENORE Director
Bought
$12.40K 2,500 at 4.96
opened
First buy on file
13 Jun 2025
Koss Michael J Jr VP - Marketing & Product
Sold at will
$117.79K 24,643 at 4.78
48.7%
Not planned
12 Jun 2025
Koss Michael J Jr VP - Marketing & Product
Sold at will
$29.46K 6,000 at 4.91
18.8%
Not planned
12 Jun 2025
KOSS JOHN C JR Vice President - Sales
Sold at will
$7.53K 1,500 at 5.02
0.8%
Not planned
11 Jun 2025
KOSS JOHN C JR Vice President - Sales
Sold at will
$132.78K 23,500 at 5.65
10.7%
Not planned
10 Jun 2025
KOSS JOHN C JR Vice President - Sales
Sold at will
$145.00K 25,000 at 5.80
11.3%
Not planned
12 Dec 2024
KOSS JOHN C JR Vice President - Sales
Sold at will
$184.73K 25,000 at 7.39
11.3%
Not planned
20 May 2024
KOSS JOHN C JR Vice President - Sales
Sold at will
$131.25K 25,000 at 5.25
11.3%
Not planned
2 Jun 2022
Bought
$20.78K 2,847 at 7.30
16.6%
1 Jun 2022
Bought
$119.38K 17,153 at 6.96
opened
First buy on file
2 Nov 2021
Smith David Donnan Chief Financial Officer
Sold, plan not stated
$155.40K 10,000 at 15.54
100%
Sold half or more
15 Sep 2021
Koss Michael J Jr VP - Marketing & Product
Sold, plan not stated
$427.34K 24,089 at 17.74
48.1%
1 Sep 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$14.63K 780 at 18.75
0.1%
31 Aug 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$183.80K 10,000 at 18.38
6.2%
31 Aug 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$170.66K 9,220 at 18.51
1.2%
30 Aug 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$98.71K 5,400 at 18.28
0.7%
30 Aug 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$91.30K 5,000 at 18.26
3.2%
27 Aug 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$180.60K 10,000 at 18.06
6.2%
27 Aug 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$83.08K 4,600 at 18.06
0.6%
26 Aug 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$155.81K 8,500 at 18.33
1.1%
25 Aug 2021
Koss Michael J Jr VP - Marketing & Product
Sold, plan not stated
$540.30K 30,000 at 18.01
53.6%
Sold half or more
24 Aug 2021
Smith David Donnan Chief Financial Officer
Sold, plan not stated
$1.94M 110,000 at 17.64
100%
Sold half or more
24 Aug 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated 3×
$1.38M 75,000 at 18.45
33.2%
24 Aug 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$325.71K 16,500 at 19.74
2.1%
1 Jul 2021
Smith David Donnan Chief Financial Officer
Sold, plan not stated 2×
$1.11M 50,000 at 22.19
100%
Sold half or more
1 Jul 2021
LILLIE LENORE VP - Operations
Sold, plan not stated
$334.05K 15,000 at 22.27
100%
Sold half or more
15 Jun 2021
Koss Michael J Jr VP - Marketing & Product
Sold, plan not stated
$243.00K 10,000 at 24.30
27.8%
15 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$121.10K 5,000 at 24.22
3.2%
14 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$75.60K 3,000 at 25.20
1.9%
9 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$135.00K 5,000 at 27.00
3.0%
8 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$243.99K 8,133 at 30.00
4.7%
3 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated 4×
$646.05K 20,000 at 32.30
10.4%
2 Jun 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated 3×
$1.18M 43,221 at 27.26
5.3%
2 Jun 2021
Koss Michael J Jr VP - Marketing & Product
Sold, plan not stated
$405.10K 10,000 at 40.51
21.7%
2 Jun 2021
KOSS MICHAEL J President and CEO · indirect
Sold, plan not stated 2×
$365.00K 10,000 at 36.50
27.0%
2 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$140.00K 5,000 at 28.00
2.5%
1 Jun 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$294.95K 11,779 at 25.04
1.5%
1 Jun 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$125.00K 5,000 at 25.00
2.5%
28 May 2021
Nixon Theodore Director
Sold, plan not stated
$235.80K 10,000 at 23.58
100%
Sold half or more
28 May 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated
$235.00K 10,000 at 23.50
4.7%
26 May 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated
$191.34K 9,000 at 21.26
1.1%
18 May 2021
Doerr Thomas L. Director
Sold, plan not stated
$62.76K 3,333 at 18.83
100%
Sold half or more
1 Apr 2021
Smith David Donnan Chief Financial Officer
Sold, plan not stated 2×
$365.58K 16,000 at 22.85
100%
Sold half or more
1 Apr 2021
LILLIE LENORE VP - Operations
Sold, plan not stated 2×
$173.93K 7,550 at 23.04
100%
Sold half or more
12 Mar 2021
KOSS MICHAEL J President and CEO · indirect
Sold, plan not stated
$123.62K 4,122 at 29.99
10.0%
10 Mar 2021
KOSS MICHAEL J President and CEO
Sold, plan not stated 4×
$1.78M 55,000 at 32.38
6.6%
10 Mar 2021
KOSS JOHN C JR Vice President - Sales
Sold, plan not stated 4×
$828.58K 29,000 at 28.57
11.8%
10 Mar 2021
KOSS MICHAEL J President and CEO · indirect
Sold, plan not stated 2×
$496.90K 14,000 at 35.49
25.4%
1 Mar 2021
Smith David Donnan Chief Financial Officer
Sold, plan not stated 2×
$396.51K 24,000 at 16.52
100%
Sold half or more
1 Mar 2021
LILLIE LENORE VP - Operations
Sold, plan not stated
$370.43K 22,450 at 16.50
100%
Sold half or more
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