Insider trading

Period: 120 months Stock: GKOS Plan: Not on a plan × + 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.

118 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.

118 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.

118 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.

118 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.
118 decisions over 120 months Remove this filter
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
118 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.

118 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
28 Aug 2026
Navratil Tomas CHIEF DEVELOPMENT OFFICER
Sold at will 3×
$2.48M 13,744 at 180.67
15.7%
Not planned
19 Aug 2026
Kliman Gilbert H Director
Sold at will
$475.00K 2,500 at 190.00
6.3%
Not planned
11 Aug 2026
Gilliam Joseph E PRESIDENT & COO
Sold at will 2×
$10.78M 60,000 at 179.74
45.3%
Not planned
31 Jul 2026
WEN LEANA Director
Sold at will
$88.01K 525 at 167.63
2.4%
Not planned
14 May 2026
Kliman Gilbert H Director
Sold at will
$703.80K 5,000 at 140.76
12.3%
Not planned
11 May 2026
Kliman Gilbert H Director
Sold at will
$675.00K 5,000 at 135.00
12.3%
Not planned
1 May 2026
Gilliam Joseph E PRESIDENT & COO
Sold at will
$2.81M 19,573 at 143.54
21.0%
Not planned
1 May 2026
WEN LEANA Director
Sold at will
$243.70K 1,700 at 143.35
7.9%
Not planned
16 Mar 2026
Navratil Tomas CHIEF DEVELOPMENT OFFICER
Sold at will 3×
$101.08K 1,031 at 98.04
1.4%
Not planned
19 Feb 2026
WEISNER AIMEE S Director
Sold at will 4×
$1.76M 15,000 at 117.38
44.4%
Not planned
9 Dec 2025
Kliman Gilbert H Director
Sold at will
$536.35K 5,000 at 107.27
12.5%
Not planned
18 Nov 2025
Gilliam Joseph E PRESIDENT & COO
Sold at will
$1.74M 19,340 at 90.00
17.3%
Not planned
26 Feb 2025
Foley Mark J Director
Sold at will
$2.50M 20,687 at 120.72
27.6%
Not planned
11 Dec 2024
Kliman Gilbert H Director
Sold at will
$288.02K 2,000 at 144.01
5.8%
Not planned
9 Sep 2024
Kliman Gilbert H Director
Sold at will 2×
$392.00K 3,000 at 130.67
8.5%
Not planned
8 Aug 2024
WEISNER AIMEE S Director
Sold at will
$3.00M 25,000 at 120.00
45.4%
Not planned
30 May 2024
Kliman Gilbert H Director
Sold at will
$560.00K 5,000 at 112.00
14.0%
Not planned
7 Mar 2024
Kliman Gilbert H Director
Sold at will
$441.25K 5,000 at 88.25
14.0%
Not planned
6 Mar 2024
Kliman Gilbert H Director · indirect
Sold at will 2×
$712.31K 8,347 at 85.34
100%
Sold half or more
27 Feb 2024
Kliman Gilbert H Director · indirect
Sold at will
$736.00K 8,000 at 92.00
48.9%
Not planned
23 Feb 2024
Foley Mark J Director
Sold at will
$423.49K 4,560 at 92.87
12.1%
Not planned
15 Dec 2023
Thurman Alex R. SVP & CHIEF FINANCIAL OFFICER
Sold at will
$101.35K 1,270 at 79.80
2.2%
Not planned
4 Aug 2023
Kliman Gilbert H Director
Sold at will
$745.60K 10,000 at 74.56
25.2%
Not planned
19 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$16.00K 200 at 80.01
0.0%
Not planned
14 Jul 2023
Gilliam Joseph E PRESIDENT & COO
Sold at will
$3.30M 42,099 at 78.34
25.9%
Not planned
14 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will 5×
$2.34M 30,000 at 77.95
4.3%
Not planned
12 Jul 2023
Gilliam Joseph E PRESIDENT & COO
Sold at will
$197.34K 2,700 at 73.09
2.2%
Not planned
10 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will 2×
$952.48K 13,440 at 70.87
2.0%
Not planned
7 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$9.31K 133 at 70.00
0.0%
Not planned
5 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$351.99K 5,027 at 70.02
0.7%
Not planned
3 Jul 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will 2×
$1.84M 26,400 at 69.51
3.8%
Not planned
28 Jun 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$1.88M 26,810 at 70.19
3.8%
Not planned
8 Jun 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$223.36K 3,190 at 70.02
0.5%
Not planned
7 Jun 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will 3×
$1.17M 17,382 at 67.20
2.5%
Not planned
6 Jun 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$495.47K 7,618 at 65.04
1.1%
Not planned
2 Jun 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$8.52K 142 at 60.00
0.0%
Not planned
23 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$420.00 7 at 60.00
0.0%
Not planned
19 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$60.21 1 at 60.21
0.0%
Not planned
18 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$701.75K 11,662 at 60.17
1.7%
Not planned
17 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$37.22K 620 at 60.04
0.1%
Not planned
16 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$222.27K 3,704 at 60.01
0.5%
Not planned
15 May 2023
Burns Thomas William CHAIRMAN & CEO
Sold at will
$231.94K 3,864 at 60.03
0.6%
Not planned
5 Aug 2022
Kliman Gilbert H Director · indirect
Sold, plan not stated
$178.23K 3,362 at 53.01
100%
Sold half or more
6 May 2021
Gilliam Joseph E CFO, SVP Corporate Development
Sold, plan not stated 4×
$411.09K 5,000 at 82.22
11.9%
3 May 2021
Gilliam Joseph E CFO, SVP Corporate Development
Sold, plan not stated 3×
$1.87M 20,000 at 93.53
27.5%
15 Mar 2021
Gilliam Joseph E CFO, SVP Corporate Development
Sold, plan not stated
$439.40K 5,000 at 87.88
10.5%
9 Feb 2021
Gilliam Joseph E CFO, SVP Corporate Development
Sold, plan not stated 2×
$1.33M 13,750 at 96.58
24.3%
1 Feb 2021
Calcaterra Chris M. Chief Operating Officer
Sold, plan not stated 4×
$5.34M 60,417 at 88.38
26.9%
1 Dec 2020
Sold, plan not stated 2×
$3.40M 50,000 at 67.97
76.4%
Sold half or more
26 May 2020
Burns Thomas William Chief Executive Officer
Sold, plan not stated 2×
$8.14M 207,447 at 39.23
40.4%
Showing 1–50 of 118. Page 1 of 3 Older →