Insider trading

Period: 120 months Stock: KOS Role: Directors × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

26 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.

26 decisions over 120 months Remove this filter
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.

26 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.

26 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.
26 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
26 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.

26 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
28 May 2026
Franklin Roy A. Director
Sold at will
$118.66K 43,466 at 2.73
22.4%
Not planned
27 May 2026
Sold at will
$118.66K 43,466 at 2.73
34.6%
Not planned
27 May 2026
Sterin Steven Director
Sold at will
$105.48K 38,636 at 2.73
10.4%
Not planned
10 Mar 2026
Bought
$6.00M 3,157,895 at 1.90
174%
First buy on file
10 Mar 2026
STICE J MICHAEL Director
Bought
$100.00K 52,631 at 1.90
34.0%
First buy on file
5 Jun 2025
Sold on a plan
$50.54K 27,923 at 1.81
48.3%
Planned (10b5-1)
9 Jun 2023
GOODWIN DEANNA L Director
Sold at will
$749.28K 112,000 at 6.69
52.9%
Sold half or more
9 Jun 2023
Franklin Roy A. Director
Sold at will
$54.40K 8,000 at 6.80
10.4%
Not planned
10 Nov 2022
Sold, plan not stated
$977.77K 147,000 at 6.65
52.4%
Sold half or more
13 Jun 2022
Franklin Roy A. Director
Sold, plan not stated
$147.20K 20,732 at 7.10
28.5%
6 Mar 2020
Sterin Steven Director
Bought
$104.99K 50,000 at 2.10
203%
First buy on file
1 Mar 2019
WARBURG PINCUS & CO. Director · indirect
Sold, plan not stated 2×
$358.05M 55,000,000 at 6.51
90.1%
Sold half or more
1 Mar 2019
Sold, plan not stated 2×
$172.55M 26,504,790 at 6.51
90.1%
Sold half or more
26 Nov 2018
WARBURG PINCUS & CO. Director · indirect
Sold, plan not stated 4×
$563.94M 104,500,000 at 5.40
75.7%
Sold half or more
26 Nov 2018
Krieger David Benjamin Director · indirect
Sold, plan not stated 2×
$281.97M 52,250,000 at 5.40
60.9%
Sold half or more
26 Nov 2018
Sold, plan not stated 4×
$271.76M 50,359,103 at 5.40
75.8%
Sold half or more
19 Sep 2018
WARBURG PINCUS & CO. Director · indirect
Sold, plan not stated 2×
$101.64M 11,368,858 at 8.94
11.7%
19 Sep 2018
Krieger David Benjamin Director · indirect
Sold, plan not stated
$50.82M 5,684,429 at 8.94
6.2%
19 Sep 2018
Sold, plan not stated 2×
$48.98M 5,478,713 at 8.94
11.8%
9 Nov 2017
Sold, plan not stated
$119.98K 14,000 at 8.57
17.7%
26 May 2017
WARBURG PINCUS & CO. Director · indirect
Sold, plan not stated 2×
$145.00M 20,000,000 at 7.25
17.9%
26 May 2017
Krieger David Benjamin Director · indirect
Sold, plan not stated
$72.50M 10,000,000 at 7.25
9.9%
26 May 2017
Sold, plan not stated 2×
$69.88M 9,638,106 at 7.25
18.0%
18 Jan 2017
WARBURG PINCUS & CO. Director · indirect
Sold, plan not stated 2×
$219.45M 33,000,000 at 6.65
24.5%
18 Jan 2017
Krieger David Benjamin Director · indirect
Sold, plan not stated
$109.73M 16,500,000 at 6.65
14.0%
18 Jan 2017
Sold, plan not stated 2×
$105.75M 15,902,874 at 6.65
24.6%
Showing 1–26 of 26.