Insider trading

Period: 120 months Stock: GKOS Share of holding: 50% or more × + Add filter Clear all
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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.

38 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.

38 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.

38 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.

38 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.
38 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
38 decisions over 120 months Remove this filter
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.

38 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 Jan 2026
Burns Thomas William CHAIRMAN & CEO
Sold on a plan
$21.50M 186,945 at 115.00
54.9%
Sold half or more
6 Mar 2024
Kliman Gilbert H Director · indirect
Sold at will 2×
$712.31K 8,347 at 85.34
100%
Sold half or more
23 Feb 2024
Gilliam Joseph E PRESIDENT & COO
Sold on a plan 3×
$12.92M 140,245 at 92.14
58.8%
Sold half or more
8 Jan 2024
Burns Thomas William CHAIRMAN & CEO
Sold on a plan 5×
$4.95M 60,000 at 82.55
51.8%
Sold half or more
2 Jan 2024
Burns Thomas William CHAIRMAN & CEO
Sold on a plan 3×
$7.33M 95,000 at 77.20
63.0%
Sold half or more
21 Dec 2023
Burns Thomas William CHAIRMAN & CEO
Sold on a plan
$6.79M 79,684 at 85.21
58.8%
Sold half or more
15 Dec 2023
Burns Thomas William CHAIRMAN & CEO
Sold on a plan 3×
$4.86M 60,000 at 80.94
51.8%
Sold half or more
5 Aug 2022
Kliman Gilbert H Director · indirect
Sold, plan not stated
$178.23K 3,362 at 53.01
100%
Sold half or more
1 Dec 2020
Sold, plan not stated 2×
$3.40M 50,000 at 67.97
76.4%
Sold half or more
6 Mar 2018
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 6×
$4.95M 161,321 at 30.70
100%
Sold half or more
6 Mar 2018
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 6×
$4.95M 161,321 at 30.70
100%
Sold half or more
5 Mar 2018
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 4×
$6.83M 210,596 at 32.44
99.3%
Sold half or more
5 Mar 2018
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 4×
$6.83M 210,596 at 32.44
99.3%
Sold half or more
2 Mar 2018
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 4×
$15.00M 464,583 at 32.29
99.2%
Sold half or more
2 Mar 2018
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 4×
$15.00M 464,583 at 32.29
99.2%
Sold half or more
5 Sep 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 6×
$16.62M 425,200 at 39.09
98.2%
Sold half or more
5 Sep 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 6×
$16.62M 425,200 at 39.09
98.2%
Sold half or more
1 Sep 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$4.15M 110,078 at 37.72
90.2%
Sold half or more
1 Sep 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$4.15M 110,078 at 37.72
90.2%
Sold half or more
31 Aug 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$1.70M 44,922 at 37.82
77.6%
Sold half or more
31 Aug 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$1.70M 44,922 at 37.82
77.6%
Sold half or more
17 Aug 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$8.59M 226,920 at 37.85
94.4%
Sold half or more
17 Aug 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$8.59M 226,920 at 37.85
94.4%
Sold half or more
16 Aug 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$2.49M 65,580 at 38.01
80.9%
Sold half or more
16 Aug 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$2.49M 65,580 at 38.01
80.9%
Sold half or more
15 Aug 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$1.24M 32,500 at 38.29
66.8%
Sold half or more
15 Aug 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$1.24M 32,500 at 38.29
66.8%
Sold half or more
14 Mar 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$3.30M 74,100 at 44.54
81.8%
Sold half or more
14 Mar 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$3.30M 74,100 at 44.54
81.8%
Sold half or more
13 Mar 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 4×
$9.58M 211,410 at 45.30
92.5%
Sold half or more
13 Mar 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 4×
$9.58M 211,410 at 45.30
92.5%
Sold half or more
10 Mar 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$4.46M 97,028 at 45.98
83.5%
Sold half or more
10 Mar 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$4.46M 97,028 at 45.98
83.5%
Sold half or more
3 Mar 2017
ORBIMED ADVISORS LLC Director · indirect
Sold, plan not stated 2×
$2.62M 55,772 at 47.05
73.6%
Sold half or more
3 Mar 2017
SILVERSTEIN JONATHAN Director · indirect
Sold, plan not stated 2×
$2.62M 55,772 at 47.05
73.6%
Sold half or more
13 Jan 2017
HARRISON RICHARD L CFO & Treasurer
Sold, plan not stated
$252.58K 6,313 at 40.01
82.0%
Sold half or more
12 Jan 2017
HARRISON RICHARD L CFO & Treasurer
Sold, plan not stated
$572.84K 14,321 at 40.00
91.2%
Sold half or more
6 Jan 2017
HARRISON RICHARD L CFO & Treasurer
Sold, plan not stated 2×
$734.14K 20,634 at 35.58
93.7%
Sold half or more
Showing 1–38 of 38.